Enhancement of surface exchange and oxygen diffusion of Sr

The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compar...
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Gespeichert in:

Autor*in:	Porotnikova, N.M. [verfasserIn] Khodimchuk, A.V. [verfasserIn] Zakharov, D.M. [verfasserIn] Bogdanovich, N.M. [verfasserIn] Osinkin, D.A. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr

Übergeordnetes Werk:	Enthalten in: Applied surface science - Amsterdam : Elsevier, 1985, 613
Übergeordnetes Werk:	volume:613

DOI / URN:	10.1016/j.apsusc.2022.156015

Katalog-ID:	ELV00902607X

Internformat


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245	1	0	\|a Enhancement of surface exchange and oxygen diffusion of Sr
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520			\|a The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed.
650		4	\|a A-site deficiency
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650		4	\|a Oxygen transport
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700	1		\|a Bogdanovich, N.M. \|e verfasserin \|0 (orcid)0000-0002-8284-5562 \|4 aut
700	1		\|a Osinkin, D.A. \|e verfasserin \|0 (orcid)0000-0001-6396-8551 \|4 aut
773	0	8	\|i Enthalten in \|t Applied surface science \|d Amsterdam : Elsevier, 1985 \|g 613 \|h Online-Ressource \|w (DE-627)312151128 \|w (DE-600)2002520-8 \|w (DE-576)094476985 \|7 nnns
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Indexfelder

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matchkey_str	porotnikovanmkhodimchukavzakharovdmbogda:2022----:nacmnosraexhnenoye
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publishDate	2022
allfields	10.1016/j.apsusc.2022.156015 doi (DE-627)ELV00902607X (ELSEVIER)S0169-4332(22)03543-7 DE-627 ger DE-627 rda eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Porotnikova, N.M. verfasserin (orcid)0000-0001-5284-4553 aut Enhancement of surface exchange and oxygen diffusion of Sr 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed. A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr Khodimchuk, A.V. verfasserin aut Zakharov, D.M. verfasserin (orcid)0000-0002-6881-6802 aut Bogdanovich, N.M. verfasserin (orcid)0000-0002-8284-5562 aut Osinkin, D.A. verfasserin (orcid)0000-0001-6396-8551 aut Enthalten in Applied surface science Amsterdam : Elsevier, 1985 613 Online-Ressource (DE-627)312151128 (DE-600)2002520-8 (DE-576)094476985 nnns volume:613 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 613
spelling	10.1016/j.apsusc.2022.156015 doi (DE-627)ELV00902607X (ELSEVIER)S0169-4332(22)03543-7 DE-627 ger DE-627 rda eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Porotnikova, N.M. verfasserin (orcid)0000-0001-5284-4553 aut Enhancement of surface exchange and oxygen diffusion of Sr 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed. A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr Khodimchuk, A.V. verfasserin aut Zakharov, D.M. verfasserin (orcid)0000-0002-6881-6802 aut Bogdanovich, N.M. verfasserin (orcid)0000-0002-8284-5562 aut Osinkin, D.A. verfasserin (orcid)0000-0001-6396-8551 aut Enthalten in Applied surface science Amsterdam : Elsevier, 1985 613 Online-Ressource (DE-627)312151128 (DE-600)2002520-8 (DE-576)094476985 nnns volume:613 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 613
allfields_unstemmed	10.1016/j.apsusc.2022.156015 doi (DE-627)ELV00902607X (ELSEVIER)S0169-4332(22)03543-7 DE-627 ger DE-627 rda eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Porotnikova, N.M. verfasserin (orcid)0000-0001-5284-4553 aut Enhancement of surface exchange and oxygen diffusion of Sr 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed. A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr Khodimchuk, A.V. verfasserin aut Zakharov, D.M. verfasserin (orcid)0000-0002-6881-6802 aut Bogdanovich, N.M. verfasserin (orcid)0000-0002-8284-5562 aut Osinkin, D.A. verfasserin (orcid)0000-0001-6396-8551 aut Enthalten in Applied surface science Amsterdam : Elsevier, 1985 613 Online-Ressource (DE-627)312151128 (DE-600)2002520-8 (DE-576)094476985 nnns volume:613 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 613
allfieldsGer	10.1016/j.apsusc.2022.156015 doi (DE-627)ELV00902607X (ELSEVIER)S0169-4332(22)03543-7 DE-627 ger DE-627 rda eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Porotnikova, N.M. verfasserin (orcid)0000-0001-5284-4553 aut Enhancement of surface exchange and oxygen diffusion of Sr 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed. A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr Khodimchuk, A.V. verfasserin aut Zakharov, D.M. verfasserin (orcid)0000-0002-6881-6802 aut Bogdanovich, N.M. verfasserin (orcid)0000-0002-8284-5562 aut Osinkin, D.A. verfasserin (orcid)0000-0001-6396-8551 aut Enthalten in Applied surface science Amsterdam : Elsevier, 1985 613 Online-Ressource (DE-627)312151128 (DE-600)2002520-8 (DE-576)094476985 nnns volume:613 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 613
allfieldsSound	10.1016/j.apsusc.2022.156015 doi (DE-627)ELV00902607X (ELSEVIER)S0169-4332(22)03543-7 DE-627 ger DE-627 rda eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Porotnikova, N.M. verfasserin (orcid)0000-0001-5284-4553 aut Enhancement of surface exchange and oxygen diffusion of Sr 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed. A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr Khodimchuk, A.V. verfasserin aut Zakharov, D.M. verfasserin (orcid)0000-0002-6881-6802 aut Bogdanovich, N.M. verfasserin (orcid)0000-0002-8284-5562 aut Osinkin, D.A. verfasserin (orcid)0000-0001-6396-8551 aut Enthalten in Applied surface science Amsterdam : Elsevier, 1985 613 Online-Ressource (DE-627)312151128 (DE-600)2002520-8 (DE-576)094476985 nnns volume:613 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 613
language	English
source	Enthalten in Applied surface science 613 volume:613
sourceStr	Enthalten in Applied surface science 613 volume:613
format_phy_str_mv	Article
bklname	Oberflächen Dünne Schichten Grenzflächen Kolloidchemie Grenzflächenchemie Oberflächentechnik Wärmebehandlung
institution	findex.gbv.de
topic_facet	A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr
dewey-raw	670
isfreeaccess_bool	false
container_title	Applied surface science
authorswithroles_txt_mv	Porotnikova, N.M. @@aut@@ Khodimchuk, A.V. @@aut@@ Zakharov, D.M. @@aut@@ Bogdanovich, N.M. @@aut@@ Osinkin, D.A. @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	312151128
dewey-sort	3670
id	ELV00902607X
language_de	englisch
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author	Porotnikova, N.M.
spellingShingle	Porotnikova, N.M. ddc 670 bkl 33.68 bkl 35.18 bkl 52.78 misc A-site deficiency misc Fe-site substitution misc Oxygen transport misc Rate-determining step misc Oxygen diffusion misc Sr Enhancement of surface exchange and oxygen diffusion of Sr
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topic_title	670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Enhancement of surface exchange and oxygen diffusion of Sr A-site deficiency Fe-site substitution Oxygen transport Rate-determining step Oxygen diffusion Sr
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title	Enhancement of surface exchange and oxygen diffusion of Sr
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title_full	Enhancement of surface exchange and oxygen diffusion of Sr
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title_sort	enhancement of surface exchange and oxygen diffusion of sr
title_auth	Enhancement of surface exchange and oxygen diffusion of Sr
abstract	The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed.
abstractGer	The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed.
abstract_unstemmed	The mechanism of interaction between gaseous oxygen and the Sr1.95Fe1.4Ni0.1Mo0.5O6–δ promising material for cathodes of SOFC has been investigated by two isotopic methods: the pulse isotope exchange and the oxygen isotope exchange with the gas phase analysis, making it possible to obtain and compare the kinetic parameters under equilibrium conditions and the mixture gas carrier flow under the sample, which extends understanding of processes and makes experimental conditions of the second case closer to real operating conditions of electrode material. The time dependences of changes in 16O2, 16O18O and 18O2 over the sample allowed us to calculate the concentration of 18O labeled oxygen (α) at the temperatures ranging from 300 to 800 °C. The oxygen exchange rate (r H, atom/(cm2 × s)), the oxygen diffusion coefficient (D, cm2/s), the corresponding rates of elementary processes of dissociative adsorption (r a, atom/(cm2 × s)) and oxygen incorporation in the lattice (r i, atom/(cm2 × s)) are calculated. The results of two independent isotopic methods were analyzed and revealed a good agreement of the obtained data. The effect of modifying Sr2Fe1.5Mo0.5O6–δ by introducing deficiency in the Sr-sublattice and Ni-doping in the Fe-sublattice on the kinetic parameters is discussed.
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title_short	Enhancement of surface exchange and oxygen diffusion of Sr
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author2	Khodimchuk, A.V. Zakharov, D.M. Bogdanovich, N.M. Osinkin, D.A.
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up_date	2024-07-06T21:43:53.152Z
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Enhancement of surface exchange and oxygen diffusion of Sr

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