Facile single-step preparation of Pt/N-graphene catalysts with improved methanol electrooxidation activity
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- 作者：Yuanyuan Zhao (1)
Yingke Zhou (1) (2)
Bin Xiong (1)
Jie Wang (1)
Xia Chen (1)
Ryan O’Hayre (3)
Zongping Shao (1) - 关键词：Pt/N ; graphene ; Methanol electrooxidation ; Fuel cell ; Electrocatalyst
- 刊名：Journal of Solid State Electrochemistry
- 出版年：2013
- 出版时间：April 2013
- 年：2013
- 卷：17
- 期：4
- 页码：1089-1098
- 全文大小：1156KB
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Yingke Zhou (1) (2)
Bin Xiong (1)
Jie Wang (1)
Xia Chen (1)
Ryan O’Hayre (3)
Zongping Shao (1)
1. State Key Laboratory of Materials Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing, 210009, People’s Republic of China
2. State Key Laboratory Breeding Base of Refractories and Ceramics, College of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, People’s Republic of China
3. Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, 80401, USA - ISSN：1433-0768
文摘
In this work, we describe a facile single-step approach for the simultaneous reduction of graphene oxide to graphene, functional doping of graphene with nitrogen, and loading of the doped graphene with well-dispersed platinum (Pt) nanoparticles using a solvent mixture of ethylene glycol and N-methyl-2-pyrrolidone. The as-prepared Pt/nitrogen-doped graphene (N-graphene) catalysts are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy while the electrocatalytic methanol oxidation properties of the catalysts are evaluated by cyclic voltammetry and chronoamperometry. Compared with an updoped Pt/graphene control catalyst, the Pt/N-graphene catalyst shows a narrower particle size distribution and improved catalytic performance. Considering the facile, green and effective single-step synthetic process for the Pt/N-graphene catalyst, the results are promising for the potential application of these materials in emerging fuel cell technologies.