Zobrazeno 1 - 10 of 84 pro vyhledávání: '"M.-B. Choi"'
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Oxygen Reduction Properties of La0.1Sr0.9Co0.8Fe0.2O3-δ Cathode for SOFC Using Electrochemical Method
Autor: M.-B. Choi, Sang-Yun Jeon, Bhupendra Singh, Sun-Ju Song, Ha-Ni Im
Publikováno v: ECS Transactions. 61:347-352
In recent years, the environmental friendly solid oxide fuel cell (SOFC) has been considered as one of the most efficient power generation systems. During the SOFC operation, the over potential is mainly given by the cathodic oxygen reduction reactio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f894fb111a85becfd91f240a4ab0397
https://doi.org/10.1149/06101.0347ecst
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3
Correlation between defect structure and electrochemical properties of mixed conducting La0.1Sr0.9Co0.8Fe0.2O3−
Autor: Jin-Ha Hwang, Young-Sung Yoo, Sang-Yun Jeon, M.-B. Choi, Sun-Ju Song, Bhupendra Singh
Publikováno v: Acta Materialia. 65:373-382
The high catalytic properties of LSCF1982 arise from its defect structure. In this work, the oxygen nonstoichiometry (δ) of LSCF1982 was analyzed as a function of oxygen partial pressure ( P O 2 ) and temperature for the - 6 ⩽ log ( P O 2 / atm )
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84bb9c05e24a71470cf1dc24eddad96b
https://doi.org/10.1016/j.actamat.2013.11.006
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4
Performance of La0.1Sr0.9Co0.8Fe0.2O3− and La0.1Sr0.9Co0.8Fe0.2O3−–Ce0.9Gd0.1O2 oxygen electrodes with Ce0.9Gd0.1O2 barrier layer in reversible solid oxide fuel cells
Autor: Sun-Ju Song, Eric D. Wachsman, M.-B. Choi, Bhupendra Singh
Publikováno v: Journal of Power Sources. 239:361-373
La0.1Sr0.9Co0.8Fe0.2O3−δ (LSCF1982) and La0.1Sr0.9Co0.8Fe0.2O3−δ–Ce0.9Gd0.1O2 (LSCF1982–GDC) composite oxygen electrodes with a GDC barrier layer are tested in yttria stabilized zirconia (YSZ) electrolyte-based reversible solid oxide cells
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d059108ab6d5a9183b211a7791d73d3d
https://doi.org/10.1016/j.jpowsour.2013.03.154
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5
Effect of humidification on the performance of intermediate-temperature proton conducting ceramic fuel cells with ceramic composite cathodes
Autor: Ki-Chae Lee, Sun-Ju Song, M.-B. Choi, Bhupendra Singh, Dae-Kwang Lim
Publikováno v: Journal of Power Sources. 232:224-233
The effect of variations in flow rate and the humidity content of the cathode and anode gases on the performance of BaCe0.85Y0.15O3−δ electrolyte-based proton conducting ceramic fuel cell with ceramic composite cathodes are studied. Increased flow
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9aa87cd6dbb4a490460b83caa7e1a77
https://doi.org/10.1016/j.jpowsour.2013.01.001
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6
Hydrogen separation by dual functional cermet membranes with self-repairing capability against the damage by H2S
Autor: Bhupendra Singh, M.-B. Choi, Sun-Ju Song, Sang-Yun Jeon
Publikováno v: Journal of Membrane Science. 428:46-51
A Pd-YSZ cermet is synthesized to fabricate a hydrogen separation membrane that performs coupled operations of the separation of hydrogen from a mixed-gas stream containing H2S and the simultaneous production of hydrogen by water-splitting. The reaso
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5eaa5043d3c00beb9b483535daba960
https://doi.org/10.1016/j.memsci.2012.11.009
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9
Electrochemical properties of ceria-based intermediate temperature solid oxide fuel cell using microwave heat-treated La0.1Sr0.9Co0.8Fe0.2O3−δ as a cathode
Autor: Heesung Yoon, Sang-Yun Jeon, Eric D. Wachsman, M.-B. Choi, Kang Taek Lee, Sun-Ju Song
Publikováno v: Journal of Power Sources. 220:377-382
The temperature dependence of the chemical diffusion coefficient and the surface exchange coefficient of LSCF1982 is successfully determined from the D.C. conductivity relaxation in the temperature range of 500 ≤ T/°C ≤ 700 and an oxygen partial
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81ca11e48e9c08e2535d9c9221647efb
https://doi.org/10.1016/j.jpowsour.2012.07.122
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10
Oxygen nonstoichiometry and chemical expansion of mixed conducting La0.1Sr0.9Co0.8Fe0.2O3−δ
Autor: Dae-Kwang Lim, Eric D. Wachsman, M.-B. Choi, Sun-Ju Song
Publikováno v: Solid State Ionics. 221:22-27
The chemical diffusivity and surface exchange constant of La 0.1 Sr 0.9 Co 0.8 Fe 0.2 O 3 − δ (LSCF1982) were successfully extracted by using the chemical expansion relaxation method, and the oxygen nonstoichiometry was determined by electrochemic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c07d9aecfe53d9834c29b4064cd5669
https://doi.org/10.1016/j.ssi.2012.06.012
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