文章基本信息

标题：Evaluation of Ca₃Co₂O₆ as cathode material for high-performance solid-oxide fuel cell
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作者：Tao Wei ; Yun-Hui Huang ; Rui Zeng 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2013
卷号：3
DOI：10.1038/srep01125
出版社：Springer Nature
摘要：A cobalt-based thermoelectric compound Ca₃Co₂O₆ (CCO) has been developed as new cathode material with superior performance for intermediate-temperature (IT) solid-oxide fuel cell (SOFC). Systematic evaluation has been carried out. Measurement of thermal expansion coefficient (TEC), thermal-stress ( σ ) and interfacial shearing stress ( τ ) with the electrolyte show that CCO matches well with several commonly-used IT electrolytes. Maximum power density as high as 1.47 W cm⁻² is attained at 800°C, and an additional thermoelectric voltage of 11.7 mV is detected. The superior electrochemical performance, thermoelectric effect, and comparable thermal and mechanical behaviors with the electrolytes make CCO to be a promising cathode material for SOFC.