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Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction
Yuan, Xianxia; Hu, Xin-Xin; Ding, Xin-Long; Kong, Hai-Chuan; Sha, Hao-Dong; Lin, He(林鹤); Wen, Wen(文闻); Shen, Guangxia; Guo, Zhi; Ma, Zi-Feng; Yang, Yong
2013
Source PublicationNANOSCALE RESEARCH LETTERS
ISSN1556-276X
Volume8
AbstractA series of non-precious metal electrocatalysts, namely pyrolyzed carbon-supported cobalt-polypyrrole, Co-PPy-TsOH/C, are synthesized with various cobalt precursors, including cobalt acetate, cobalt nitrate, cobalt oxalate, and cobalt chloride. The catalytic performance towards oxygen reduction reaction (ORR) is comparatively investigated with electrochemical techniques of cyclic voltammogram, rotating disk electrode and rotating ring-disk electrode. The results are analyzed and discussed employing physiochemical techniques of X-ray diffraction, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, inductively coupled plasma, elemental analysis, and extended X-ray absorption fine structure. It shows that the cobalt precursor plays an essential role on the synthesis process as well as microstructure and performance of the Co-PPy-TsOH/C catalysts towards ORR. Among the studied Co-PPy-TsOH/C catalysts, that prepared with cobalt acetate exhibits the best ORR performance. The crystallite/particle size of cobalt and its distribution as well as the graphitization degree of carbon in the catalyst greatly affects the catalytic performance of Co-PPy-TsOH/C towards ORR. Metallic cobalt is the main component in the active site in Co-PPy-TsOH/C for catalyzing ORR, but some other elements such as nitrogen are probably involved, too.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000327520900001
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13730
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Yuan, Xianxia,Hu, Xin-Xin,Ding, Xin-Long,et al. Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction[J]. NANOSCALE RESEARCH LETTERS,2013,8.
APA Yuan, Xianxia.,Hu, Xin-Xin.,Ding, Xin-Long.,Kong, Hai-Chuan.,Sha, Hao-Dong.,...&Yang, Yong.(2013).Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction.NANOSCALE RESEARCH LETTERS,8.
MLA Yuan, Xianxia,et al."Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction".NANOSCALE RESEARCH LETTERS 8(2013).
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