Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation
	Ye, Weichun 1,2; Chen, Yang 2; Zhou, Yaxin 2; Fu, Jiajia 2; Wu, Weici 2; Gao, Daqiang 1; Zhou F(周峰)3 ; Wang, Chunming 2; Xue, Desheng 1
刊名	Electrochimica Acta
	2014
卷号	142 页码:18-24
关键词	Reduced graphene oxide Polydopamine Flowerlike platinum nanocrystals Methanol electrooxidation
ISSN号	0013-4686
通讯作者	Ye, Weichun ; Xue, Desheng
英文摘要	A simple and effective approach was demonstrated to synthesize flowerlike Pt nanocrystals on polydopamine (PDA) functionalized reduced oxide graphene (RGO). Inspired by mussels, the PDA/RGO composites were obtained via the reduction of GO nanosheets by dopamine, followed by simultaneous capping by PDA. Then, the synthesis of Pt flowerlike nanocrystals assembled with small elongated nanoparticles on PDA/RGO (Pt(F)-PDA/RGO) was carried out by mixing H₂PtCl₆ with PDA/RGO in the presence of ascorbic acid under boiling. PDA as a surface-adherent and multifunctional biopolymer played a dual role: dispersing stable RGO into aqueous solution and providing functional groups to bind metal ions and metal nanoparticles. The as-prepared Pt(F)-PDA/RGO catalyst showed considerably improved catalytic activity and stability toward methanol electrooxidation, compared with Pt nanoclusters on PDA/RGO (Pt(C)-PDA/RGO) and Pt nanoparticles on pristine graphene sheets (Pt/RGO). The kinetic characterization of Pt(F)-PDA/RGO was further discussed by cyclic voltammetry. This simple and green approach could be applicable to other metallic nanocrystals as a novel platform in catalysis, fuel cells and biosensors.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the Natural Science Foundation of Gansu Province, China (No. 1107RJZA261);the Post-Doctoral Science Foundation of China (No. 2013M542393);the Fundamental Research Funds for the Central Universities (No. lzujbky-2014-69;lzujbky-2012-26;lzujbky-2011-23);the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University (No. LZUMMM2014002)
语种	英语
WOS记录号	WOS:000343626400003
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/18774]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Key Laboratory for Magnetism and Magnetic Materials of MOE and Department of Physics, Lanzhou University, Lanzhou 730000, China 2.Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and Department of Chemistry, Lanzhou University, Lanzhou 730000, China 3.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
推荐引用方式 GB/T 7714	Ye, Weichun,Chen, Yang,Zhou, Yaxin,et al. Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation[J]. Electrochimica Acta,2014,142:18-24.
APA	Ye, Weichun.,Chen, Yang.,Zhou, Yaxin.,Fu, Jiajia.,Wu, Weici.,...&Xue, Desheng.(2014).Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation.Electrochimica Acta,142,18-24.
MLA	Ye, Weichun,et al."Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation".Electrochimica Acta 142(2014):18-24.