Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte
The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85)...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chen, Gang [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017transfer abstract |
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| Schlagwörter: |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration - Rey, F. ELSEVIER, 2018, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:43 ; year:2017 ; number:1 ; pages:1304-1309 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.ceramint.2016.10.082 |
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ELV014988860 |
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| 245 | 1 | 0 | |a Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte |
| 264 | 1 | |c 2017transfer abstract | |
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| 520 | |a The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. | ||
| 520 | |a The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. | ||
| 650 | 7 | |a Electrochemical performance |2 Elsevier | |
| 650 | 7 | |a Cathode |2 Elsevier | |
| 650 | 7 | |a LSM |2 Elsevier | |
| 650 | 7 | |a Interfacial reaction |2 Elsevier | |
| 650 | 7 | |a Solid oxide fuel cell |2 Elsevier | |
| 650 | 7 | |a A site deficiency |2 Elsevier | |
| 700 | 1 | |a Gao, Yu |4 oth | |
| 700 | 1 | |a Luo, Yifei |4 oth | |
| 700 | 1 | |a Guo, Ruifeng |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Rey, F. ELSEVIER |t Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration |d 2018 |g Amsterdam [u.a.] |w (DE-627)ELV000899798 |
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10.1016/j.ceramint.2016.10.082 doi GBV00000000000049A.pica (DE-627)ELV014988860 (ELSEVIER)S0272-8842(16)31846-6 DE-627 ger DE-627 rakwb eng 670 670 DE-600 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Gang verfasserin aut Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte 2017transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. Electrochemical performance Elsevier Cathode Elsevier LSM Elsevier Interfacial reaction Elsevier Solid oxide fuel cell Elsevier A site deficiency Elsevier Gao, Yu oth Luo, Yifei oth Guo, Ruifeng oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:43 year:2017 number:1 pages:1304-1309 extent:6 https://doi.org/10.1016/j.ceramint.2016.10.082 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 43 2017 1 1304-1309 6 045F 670 |
| spelling |
10.1016/j.ceramint.2016.10.082 doi GBV00000000000049A.pica (DE-627)ELV014988860 (ELSEVIER)S0272-8842(16)31846-6 DE-627 ger DE-627 rakwb eng 670 670 DE-600 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Gang verfasserin aut Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte 2017transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. Electrochemical performance Elsevier Cathode Elsevier LSM Elsevier Interfacial reaction Elsevier Solid oxide fuel cell Elsevier A site deficiency Elsevier Gao, Yu oth Luo, Yifei oth Guo, Ruifeng oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:43 year:2017 number:1 pages:1304-1309 extent:6 https://doi.org/10.1016/j.ceramint.2016.10.082 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 43 2017 1 1304-1309 6 045F 670 |
| allfields_unstemmed |
10.1016/j.ceramint.2016.10.082 doi GBV00000000000049A.pica (DE-627)ELV014988860 (ELSEVIER)S0272-8842(16)31846-6 DE-627 ger DE-627 rakwb eng 670 670 DE-600 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Gang verfasserin aut Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte 2017transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. Electrochemical performance Elsevier Cathode Elsevier LSM Elsevier Interfacial reaction Elsevier Solid oxide fuel cell Elsevier A site deficiency Elsevier Gao, Yu oth Luo, Yifei oth Guo, Ruifeng oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:43 year:2017 number:1 pages:1304-1309 extent:6 https://doi.org/10.1016/j.ceramint.2016.10.082 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 43 2017 1 1304-1309 6 045F 670 |
| allfieldsGer |
10.1016/j.ceramint.2016.10.082 doi GBV00000000000049A.pica (DE-627)ELV014988860 (ELSEVIER)S0272-8842(16)31846-6 DE-627 ger DE-627 rakwb eng 670 670 DE-600 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Gang verfasserin aut Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte 2017transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. Electrochemical performance Elsevier Cathode Elsevier LSM Elsevier Interfacial reaction Elsevier Solid oxide fuel cell Elsevier A site deficiency Elsevier Gao, Yu oth Luo, Yifei oth Guo, Ruifeng oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:43 year:2017 number:1 pages:1304-1309 extent:6 https://doi.org/10.1016/j.ceramint.2016.10.082 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 43 2017 1 1304-1309 6 045F 670 |
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10.1016/j.ceramint.2016.10.082 doi GBV00000000000049A.pica (DE-627)ELV014988860 (ELSEVIER)S0272-8842(16)31846-6 DE-627 ger DE-627 rakwb eng 670 670 DE-600 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Chen, Gang verfasserin aut Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte 2017transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. Electrochemical performance Elsevier Cathode Elsevier LSM Elsevier Interfacial reaction Elsevier Solid oxide fuel cell Elsevier A site deficiency Elsevier Gao, Yu oth Luo, Yifei oth Guo, Ruifeng oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:43 year:2017 number:1 pages:1304-1309 extent:6 https://doi.org/10.1016/j.ceramint.2016.10.082 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 43 2017 1 1304-1309 6 045F 670 |
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Enthalten in Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration Amsterdam [u.a.] volume:43 year:2017 number:1 pages:1304-1309 extent:6 |
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effect of a site deficiency of lsm cathode on the electrochemical performance of sofcs with stabilized zirconia electrolyte |
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Effect of A site deficiency of LSM cathode on the electrochemical performance of SOFCs with stabilized zirconia electrolyte |
| abstract |
The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. |
| abstractGer |
The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. |
| abstract_unstemmed |
The effect of A site deficiency on the electrochemical performance of a strontium-doped lanthanum manganite (LSM) cathode in an ScSZ electrolyte-supported solid oxide fuel cell (SOFC) was investigated. XRD characterization resulted in a series of (La0.75Sr0.25)xMnO3 (x=1.0, 0.97, 0.95, 0.9 and 0.85) powders, indicating that the Mn3O4 phase precipitated into (LS)xM when the deficiency value was over a certain threshold value. The chemical reaction occurred between stoichiometric LSM and ScSZ due to the high chemical potential of La. An A site deficiency in the LSM can reduce the chemical potential of La and suppress the interfacial reaction between the LSM and ScSZ. The precipitation of Mn3O4 due to a larger A site deficiency leads to the formation of LZO occurring at the A site-deficient (LS)xM and ScSZ. An A site-deficient (LS)xM cathode appears to possess good adhesion with the ScSZ electrolyte and a longer active TPB length after being sintered at 1300°C. An optimal A site deficiency concentration was considered to exist in the electrochemical performance improvement of the A site-deficient LSM cathode SOFC. |
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