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质子导体固体氧化物燃料电池Pr_(1.8)Ba_(0.2)Ni_(0.5)Cu_(0.4)Co_(0.1)O_(4+δ)阴极材料制备与性能 被引量:2

Preparation and Performance of Pr_(1.8)Ba_(0.2)Ni_(0.5)Cu_(0.4)Co_(0.1)O_(4+δ) Cathode Toward Proton Conducting Solid Oxide Fuel Cell
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摘要 通过溶胶-凝胶法制备新型Ruddlesden-Popper结构Pr_(1.8)Ba_(0.2)Ni_(0.5)Cu_(0.4)Co_(0.1)O_(4+δ)阴极材料,探究其作为质子导体固体氧化物燃料电池(H-SOFC)阴极材料在氧化性气氛中的催化还原性能。对PBNCC进行相结构、物理性能及电化学性能表征,结果表明:PBNCC材料450℃时具有最大电子电导率为118 S·cm^(-1),750℃时PBNCC电极在空气和含水氩气气氛中电极极化阻抗分别为0.047Ω·cm^(2)、1.161Ω·cm^(2),其结构中氧空位和质子缺陷的形成有利于促进氧离子与质子在晶格中的传导过程,与没有掺杂钴元素的原始材料相比较,氧还原能力有一定提高。 Pr_(1.8)Ba_(0.2)Ni_(0.5)Cu_(0.4)Co_(0.1)O_(4+δ)cathode material with Ruddlesden-Popper phase was prepared by sol-gel method,which was evaluated the reduction performance in an oxidizing atmosphere as cathode in for proton conductor solid oxide fuel cells.Crystal structure,physical properties and electrochemical was concluded that the impedances at 750℃in air and in aqueous argon are 0.047Ω·cm^(2) and 1.161Ω·cm^(2),respectively.The formation of oxygen vacancies and proton defects in the structure facilitates the conduction of ions and protons,and the oxygen reduction capacity was improved compared with the materials without cobalt doping.
作者 李婷婷 王振华 孙旺 白羽 孙克宁 乔金硕 Li Tingting;Wang Zhenhua;Sun Wang;Bai Yu;Sun Kening;Qiao Jinshuo(School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100084,China)
出处 《硅酸盐学报》 EI CAS CSCD 北大核心 2021年第12期2636-2643,共8页 Journal of The Chinese Ceramic Society
基金 国家自然科学基金项目资助(22078022)。
关键词 质子导体固体氧化物燃料电池 阴极 Ruddlesden-Popper结构 proton conducting solid oxide fuel cell cathode ruddlesden-Popper phase
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