Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction

CORC > 厦门大学 > 化学化工－已发表论文

	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 ; Wen, Wen ; Shen, Guangxia ; Guo, Zhi ; Ma, Zi-Feng ; Yang, Yong ; Yang Y(杨勇)
刊名	http://dx.doi.org/10.1186/1556-276X-8-478
	2013
关键词	ELECTROLYTE FUEL-CELLS FE-BASED CATALYSTS THERMAL-DECOMPOSITION O-2 REDUCTION ACETATE TETRAHYDRATE HYDROGEN-PEROXIDE CATHODE CATALYST CO-PPY/C BLACK IRON
英文摘要	National Science Foundation of China [21176155]; STCSM of China [10JC1406900]; Open Foundation of State Key Laboratory of Physical Chemical of Solid Surfaces in Xiamen University [200708]; A 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.
语种	英语
出版者	SPRINGER
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88790]
专题	化学化工－已发表论文
推荐引用方式 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]. http://dx.doi.org/10.1186/1556-276X-8-478,2013.
APA	Yuan, Xianxia.,Hu, Xin-Xin.,Ding, Xin-Long.,Kong, Hai-Chuan.,Sha, Hao-Dong.,...&杨勇.(2013).Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction.http://dx.doi.org/10.1186/1556-276X-8-478.
MLA	Yuan, Xianxia,et al."Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction".http://dx.doi.org/10.1186/1556-276X-8-478 (2013).