期刊
JOURNAL OF NANOMATERIALS
卷 2015, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2015/724064
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资金
- National Research Foundation of Korea - Korean Government (MEST) [NRF-2012-M1A2A2-028739]
- National Research Foundation of Korea [2012M1A2A2028739] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The optimum composition of cathode catalyst has been studied for rechargeable zinc air battery application. La0.9Ca0.1Co1-xFexO3 (x = 0-0.4) perovskite powders were prepared using the citrate method. The substitution ratio of Co2+ with Fe3+ cations was controlled in the range of 0-0.4. The optimum substitution ratio of Fe3+ cations was determined by electrochemical measurement of the air cathode composed of the catalyst, polytetrafluoroethylene (PTFE) binder, and Vulcan XC-72 carbon. The substitution by Fe enhanced the electrochemical performances of the catalysts. Considering oxygen reduction/evolution reactions and cyclability, we achieved optimum substitution level of x = 0.1 in La0.9Ca0.1Co1-xFexO3.
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