Preparation and characterization of carbon supported CoNi alloy nanoparticles electrode and their electrocatalytic properties

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	Preparation and characterization of carbon supported CoNi alloy nanoparticles electrode and their electrocatalytic properties
	Ou, Jielian ; Chen, Yanxin ; Li, Mingxuan ; Xu, Binbin ; Wang, Peng ; Chen, Shengpei ; Sun, Shigang ; Sun SG(孙世刚)
刊名	http://dx.doi.org/10.3969/j.issn.0438-1157.2013.05.031
	2013
关键词	Alloys Current density Cyclic voltammetry Electrocatalysis Electrodeposition Electrolytic reduction Electron diffraction Geometry Nanoparticles Nickel Photoelectrons X ray photoelectron spectroscopy
英文摘要	CoNi alloy nanoparticles were synthesized on glassy carbon(GC) electrode(CoNi/GC) by electrochemical deposition. SEM images showed that the prepared CoNi alloy nanoparticles were 18-facet polyhedra with an average particles size of 100 nm, dispersed on the GC electrode surfaces uniformly. The selected area electron diffraction(SAED) pattern showed that CoNi alloy nanoparticles were single crystals. X-ray photoelectron spectroscopy(XPS)showed that the Co(0)and Ni(0) were dominant. The electrocatalytical activities for nitrite reduction of bulk Co, bulk Ni and CoNi/GC electrodes were investigated by cyclic voltammetry(CV). Onset potential(Ei) of nitrite reduction on CoNi/GC electrode was positively shifted 90 mV, and peak current density(jp) was 6-14 times higher than those of bulk Co and bulk Ni electrode. CoNi/GC electrode also showed an enhancement of electrocatalytical activity towards oxygen reduction reaction, of which peak current density(jp) was 1.7 times and dynamic current density(jk) was 5.2 times higher than those of GC electrode. ? All Rights Reserved.
语种	英语
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89153]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Ou, Jielian,Chen, Yanxin,Li, Mingxuan,et al. Preparation and characterization of carbon supported CoNi alloy nanoparticles electrode and their electrocatalytic properties[J]. http://dx.doi.org/10.3969/j.issn.0438-1157.2013.05.031,2013.
APA	Ou, Jielian.,Chen, Yanxin.,Li, Mingxuan.,Xu, Binbin.,Wang, Peng.,...&孙世刚.(2013).Preparation and characterization of carbon supported CoNi alloy nanoparticles electrode and their electrocatalytic properties.http://dx.doi.org/10.3969/j.issn.0438-1157.2013.05.031.
MLA	Ou, Jielian,et al."Preparation and characterization of carbon supported CoNi alloy nanoparticles electrode and their electrocatalytic properties".http://dx.doi.org/10.3969/j.issn.0438-1157.2013.05.031 (2013).