The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ
Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic an...
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| Autor*in: |
Malyshkin, Dmitry [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
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2020transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners - Jacobs, Jacquelyn A. ELSEVIER, 2017, JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics, Lausanne |
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| Übergeordnetes Werk: |
volume:845 ; year:2020 ; day:10 ; month:12 ; pages:0 |
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| DOI / URN: |
10.1016/j.jallcom.2020.156309 |
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ELV051150085 |
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| 245 | 1 | 4 | |a The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ |
| 264 | 1 | |c 2020transfer abstract | |
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| 520 | |a Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. | ||
| 520 | |a Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. | ||
| 650 | 7 | |a Proton conducting oxides |2 Elsevier | |
| 650 | 7 | |a Layered perovskites |2 Elsevier | |
| 650 | 7 | |a Triple-conducting phenomena |2 Elsevier | |
| 650 | 7 | |a Double perovskites |2 Elsevier | |
| 700 | 1 | |a Novikov, Andrey |4 oth | |
| 700 | 1 | |a Ivanov, Ivan |4 oth | |
| 700 | 1 | |a Sereda, Vladimir |4 oth | |
| 700 | 1 | |a Tsvetkov, Dmitry |4 oth | |
| 700 | 1 | |a Zuev, Andrey |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Jacobs, Jacquelyn A. ELSEVIER |t Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners |d 2017 |d JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics |g Lausanne |w (DE-627)ELV001115774 |
| 773 | 1 | 8 | |g volume:845 |g year:2020 |g day:10 |g month:12 |g pages:0 |
| 856 | 4 | 0 | |u https://doi.org/10.1016/j.jallcom.2020.156309 |3 Volltext |
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2020transfer abstract |
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2020 |
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10.1016/j.jallcom.2020.156309 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001268.pica (DE-627)ELV051150085 (ELSEVIER)S0925-8388(20)32673-6 DE-627 ger DE-627 rakwb eng 630 VZ Malyshkin, Dmitry verfasserin aut The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Proton conducting oxides Elsevier Layered perovskites Elsevier Triple-conducting phenomena Elsevier Double perovskites Elsevier Novikov, Andrey oth Ivanov, Ivan oth Sereda, Vladimir oth Tsvetkov, Dmitry oth Zuev, Andrey oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:845 year:2020 day:10 month:12 pages:0 https://doi.org/10.1016/j.jallcom.2020.156309 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 845 2020 10 1210 0 |
| spelling |
10.1016/j.jallcom.2020.156309 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001268.pica (DE-627)ELV051150085 (ELSEVIER)S0925-8388(20)32673-6 DE-627 ger DE-627 rakwb eng 630 VZ Malyshkin, Dmitry verfasserin aut The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Proton conducting oxides Elsevier Layered perovskites Elsevier Triple-conducting phenomena Elsevier Double perovskites Elsevier Novikov, Andrey oth Ivanov, Ivan oth Sereda, Vladimir oth Tsvetkov, Dmitry oth Zuev, Andrey oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:845 year:2020 day:10 month:12 pages:0 https://doi.org/10.1016/j.jallcom.2020.156309 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 845 2020 10 1210 0 |
| allfields_unstemmed |
10.1016/j.jallcom.2020.156309 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001268.pica (DE-627)ELV051150085 (ELSEVIER)S0925-8388(20)32673-6 DE-627 ger DE-627 rakwb eng 630 VZ Malyshkin, Dmitry verfasserin aut The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Proton conducting oxides Elsevier Layered perovskites Elsevier Triple-conducting phenomena Elsevier Double perovskites Elsevier Novikov, Andrey oth Ivanov, Ivan oth Sereda, Vladimir oth Tsvetkov, Dmitry oth Zuev, Andrey oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:845 year:2020 day:10 month:12 pages:0 https://doi.org/10.1016/j.jallcom.2020.156309 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 845 2020 10 1210 0 |
| allfieldsGer |
10.1016/j.jallcom.2020.156309 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001268.pica (DE-627)ELV051150085 (ELSEVIER)S0925-8388(20)32673-6 DE-627 ger DE-627 rakwb eng 630 VZ Malyshkin, Dmitry verfasserin aut The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Proton conducting oxides Elsevier Layered perovskites Elsevier Triple-conducting phenomena Elsevier Double perovskites Elsevier Novikov, Andrey oth Ivanov, Ivan oth Sereda, Vladimir oth Tsvetkov, Dmitry oth Zuev, Andrey oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:845 year:2020 day:10 month:12 pages:0 https://doi.org/10.1016/j.jallcom.2020.156309 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 845 2020 10 1210 0 |
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10.1016/j.jallcom.2020.156309 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001268.pica (DE-627)ELV051150085 (ELSEVIER)S0925-8388(20)32673-6 DE-627 ger DE-627 rakwb eng 630 VZ Malyshkin, Dmitry verfasserin aut The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. Proton conducting oxides Elsevier Layered perovskites Elsevier Triple-conducting phenomena Elsevier Double perovskites Elsevier Novikov, Andrey oth Ivanov, Ivan oth Sereda, Vladimir oth Tsvetkov, Dmitry oth Zuev, Andrey oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:845 year:2020 day:10 month:12 pages:0 https://doi.org/10.1016/j.jallcom.2020.156309 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 845 2020 10 1210 0 |
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origin of triple conductivity and water uptake in layered double perovskites: a case study on lanthanum-substituted gdbaco2o6−δ |
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The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ |
| abstract |
Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. |
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Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. |
| abstract_unstemmed |
Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase. |
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10.1016/j.jallcom.2020.156309 |
| up_date |
2024-07-06T19:28:09.730Z |
| _version_ |
1803859095434821632 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV051150085</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230626031630.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">210910s2020 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.jallcom.2020.156309</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">/cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001268.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV051150085</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0925-8388(20)32673-6</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">630</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Malyshkin, Dmitry</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="4"><subfield code="a">The origin of triple conductivity and water uptake in layered double perovskites: A case study on lanthanum-substituted GdBaCo2O6−δ</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020transfer abstract</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Some layered double perovskite cobaltites have been shown recently to absorb water and exhibit increasing electrical conductivity in humid atmospheres. However, the assumptions that their crystal lattice is capable of proton uptake, and that these oxides really possess triple (oxide ion, protonic and electronic) conductivity, have already been brought into question. We investigated in detail the crystal structure and phase composition of various lanthanum-substituted GdBaCo2O6−δ and came to several important conclusions. Firstly, in oxidative conditions (e.g. in air), the substitution of La for either only Gd or only Ba in GdBaCo2O6−δ results in formation of multiphase materials. For example, BaCo1–x Gd x O3−δ exsolves from Gd1–x La x BaCo2O6−δ due to the redistribution of La between Gd and Ba sites in Gd1–x La x BaCo2O6−δ lattice. Secondly, a single-phase double perovskite can be synthesized in air only by simultaneously substituting, within certain limits, both Gd and Ba in GdBaCo2O6−δ with La. Finally, using Gd0.8La0.2Ba0.95La0.05Co2O6−δ and BaCo0.8Gd0.2O3−δ as examples, we demonstrated that while single-phase double perovskite does not hydrate, in the same conditions, the cubic perovskite BaCo0.8Gd0.2O3−δ (BaCo1–x Gd x O3−δ is encountered in Gd1–x La x BaCo2O6−δ as an impurity) absorbs significant amount of water. Thus, the water uptake by lanthanum-substituted GdBaCo2O6−δ is most likely to occur due to the impurities, and not the main double perovskite phase.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Proton conducting oxides</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Layered perovskites</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Triple-conducting phenomena</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Double perovskites</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Novikov, Andrey</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ivanov, Ivan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sereda, Vladimir</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tsvetkov, Dmitry</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zuev, Andrey</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Jacobs, Jacquelyn A. ELSEVIER</subfield><subfield code="t">Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners</subfield><subfield code="d">2017</subfield><subfield code="d">JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics</subfield><subfield code="g">Lausanne</subfield><subfield code="w">(DE-627)ELV001115774</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:845</subfield><subfield code="g">year:2020</subfield><subfield code="g">day:10</subfield><subfield code="g">month:12</subfield><subfield code="g">pages:0</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.jallcom.2020.156309</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">845</subfield><subfield code="j">2020</subfield><subfield code="b">10</subfield><subfield code="c">1210</subfield><subfield code="h">0</subfield></datafield></record></collection>
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| score |
7.3984175 |