Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor
A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD,...
Ausführliche Beschreibung
Gespeichert in:
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Huang, Wenlong [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
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2019transfer abstract |
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11 |
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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:792 ; year:2019 ; day:5 ; month:07 ; pages:759-769 ; extent:11 |
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| DOI / URN: |
10.1016/j.jallcom.2019.04.089 |
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ELV046671064 |
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| 100 | 1 | |a Huang, Wenlong |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor |
| 264 | 1 | |c 2019transfer abstract | |
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| 520 | |a A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. | ||
| 520 | |a A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. | ||
| 650 | 7 | |a Ionic conduction |2 Elsevier | |
| 650 | 7 | |a Conductivity |2 Elsevier | |
| 650 | 7 | |a Hydrogen sensor |2 Elsevier | |
| 650 | 7 | |a Perovskites |2 Elsevier | |
| 650 | 7 | |a Transport number |2 Elsevier | |
| 700 | 1 | |a Li, Ying |4 oth | |
| 700 | 1 | |a Ding, Yushi |4 oth | |
| 700 | 1 | |a Li, Hongzheng |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 |
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10.1016/j.jallcom.2019.04.089 doi GBV00000000000739.pica (DE-627)ELV046671064 (ELSEVIER)S0925-8388(19)31361-1 DE-627 ger DE-627 rakwb eng 630 VZ Huang, Wenlong verfasserin aut Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor 2019transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. Ionic conduction Elsevier Conductivity Elsevier Hydrogen sensor Elsevier Perovskites Elsevier Transport number Elsevier Li, Ying oth Ding, Yushi oth Li, Hongzheng 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:792 year:2019 day:5 month:07 pages:759-769 extent:11 https://doi.org/10.1016/j.jallcom.2019.04.089 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 792 2019 5 0705 759-769 11 |
| spelling |
10.1016/j.jallcom.2019.04.089 doi GBV00000000000739.pica (DE-627)ELV046671064 (ELSEVIER)S0925-8388(19)31361-1 DE-627 ger DE-627 rakwb eng 630 VZ Huang, Wenlong verfasserin aut Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor 2019transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. Ionic conduction Elsevier Conductivity Elsevier Hydrogen sensor Elsevier Perovskites Elsevier Transport number Elsevier Li, Ying oth Ding, Yushi oth Li, Hongzheng 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:792 year:2019 day:5 month:07 pages:759-769 extent:11 https://doi.org/10.1016/j.jallcom.2019.04.089 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 792 2019 5 0705 759-769 11 |
| allfields_unstemmed |
10.1016/j.jallcom.2019.04.089 doi GBV00000000000739.pica (DE-627)ELV046671064 (ELSEVIER)S0925-8388(19)31361-1 DE-627 ger DE-627 rakwb eng 630 VZ Huang, Wenlong verfasserin aut Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor 2019transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. Ionic conduction Elsevier Conductivity Elsevier Hydrogen sensor Elsevier Perovskites Elsevier Transport number Elsevier Li, Ying oth Ding, Yushi oth Li, Hongzheng 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:792 year:2019 day:5 month:07 pages:759-769 extent:11 https://doi.org/10.1016/j.jallcom.2019.04.089 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 792 2019 5 0705 759-769 11 |
| allfieldsGer |
10.1016/j.jallcom.2019.04.089 doi GBV00000000000739.pica (DE-627)ELV046671064 (ELSEVIER)S0925-8388(19)31361-1 DE-627 ger DE-627 rakwb eng 630 VZ Huang, Wenlong verfasserin aut Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor 2019transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. Ionic conduction Elsevier Conductivity Elsevier Hydrogen sensor Elsevier Perovskites Elsevier Transport number Elsevier Li, Ying oth Ding, Yushi oth Li, Hongzheng 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:792 year:2019 day:5 month:07 pages:759-769 extent:11 https://doi.org/10.1016/j.jallcom.2019.04.089 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 792 2019 5 0705 759-769 11 |
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10.1016/j.jallcom.2019.04.089 doi GBV00000000000739.pica (DE-627)ELV046671064 (ELSEVIER)S0925-8388(19)31361-1 DE-627 ger DE-627 rakwb eng 630 VZ Huang, Wenlong verfasserin aut Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor 2019transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. Ionic conduction Elsevier Conductivity Elsevier Hydrogen sensor Elsevier Perovskites Elsevier Transport number Elsevier Li, Ying oth Ding, Yushi oth Li, Hongzheng 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:792 year:2019 day:5 month:07 pages:759-769 extent:11 https://doi.org/10.1016/j.jallcom.2019.04.089 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 792 2019 5 0705 759-769 11 |
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Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor |
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preparation and conductive properties of double perovskite ba<ce:inf loc="post">3</ce:inf>sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>o<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor |
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Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor |
| abstract |
A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. |
| abstractGer |
A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. |
| abstract_unstemmed |
A series of Ba3Sr1+x Ta2−x O9−δ (x = 0,0.1,0.2,0.3,0.4) double perovskite proton conductors were fabricated at 1400 °C for 10 h and further sintered at 1650 °C for 10 h via a solid-state reaction process. Their phase composition, microstructure characterization and valence were investigated by XRD, FESEM and XPS techniques. Conductivities of these proton conductors were measured under the atmosphere of various water vapor and oxygen pressures by the electrochemical impedance spectra technique. It was found that the grain boundary thicknesses of Ba3Sr1+x Ta2−x O9−δ were significantly higher than other perovskite proton conductors. The total conductivities of Ba3Sr1+x Ta2−x O9−δ increased with the increase of both temperature and stoichiometric proportion of Sr, and Ba3Sr1.4Ta1.6O8.4 exhibited the highest conductivity of about 4.4 × 10−3 S cm−1 at 750 °C. Additionally, the transport numbers of proton, oxide ion and hole were measured using defect equilibria model. The results indicated that Ba3Sr1+x Ta2−x O9−δ oxides were almost pure proton conductors at 400–550 °C and mixed proton-oxide ion-hole conductors at 550–850 °C, and Ba3Sr1.3Ta1.7O8.55 exhibited the highest protonic transport number. The performance of the hydrogen sensor using Ba3Sr1.3Ta1.7O8.55 was also measured in various hydrogen partial pressure, a good linear relationship between EMF and p H 2 was observed at 400–800 °C, and the response time was around 10s. |
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Preparation and conductive properties of double perovskite Ba<ce:inf loc="post">3</ce:inf>Sr<ce:inf loc="post">1+<ce:italic>x</ce:italic> </ce:inf>Ta<ce:inf loc="post">2−<ce:italic>x</ce:italic> </ce:inf>O<ce:inf loc="post">9−<ce:italic>δ</ce:italic> </ce:inf> and application for hydrogen sensor |
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https://doi.org/10.1016/j.jallcom.2019.04.089 |
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Li, Ying Ding, Yushi Li, Hongzheng |
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Li, Ying Ding, Yushi Li, Hongzheng |
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10.1016/j.jallcom.2019.04.089 |
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2024-07-06T20:50:34.487Z |
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