Tuning geometry distortion of pyrochlore RE2Zr1.95Ni0.05O7+δ anodes with rich oxygen vacancies for ammonia-fed solid oxide fuel cell

Fulan Zhong,Xinmin Wang,Lei Wang,Huihuang Fang,Yu Luo,Chongqi Chen,Li Lin,Dabiao Wang,Kongfa Chen,Lilong Jiang

Separation and Purification Technology（2023）

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摘要

•Pyrochlore oxide makes some oxygen ions flow to occupy hole position to form Frankel defect.•Insight into influence of geometric distortion on electrochemical performance of pyrochlore oxide.•Relationship between rare-earth ionic radius and MPD using H2/NH3 fuels is definitely elaborated.•Confirming oxygen vacancies can be diffusion and adsorption active site for ammonia by DRT.

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关键词

Ammonia oxidation,Ammonia-fed solid oxide fuel cell,RE2Zr1.95Ni0.05O7+δ anode,Geometry distortion,Electrochemical performance

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