| 一步法制备还原态氧化石墨烯载铂纳米粒子及其对甲醇氧化的电催化性能 |
| |
| 作者单位： | 1. Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China;2. Henan Provincial Key Laboratory of Surface Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China |
| |
| 基金项目： | the National Natural Science Foundation of China(U1404201);National Training Programs of Innovation andEntrepreneurship for Undergraduates(201310462099);Foundation for Young Core Teacher by Zhengzhou University of Light Industry, China(2013XGGJS007);Research Foundation of Education Bureau of Henan Province, China(13A530362);Doctoral Foundation of ZhengzhouUniversity of Light Industry, China(2011BSJJ020) |
| |
| 摘 要： |
|
| 关 键 词： | Pt纳米粒子 石墨烯 化学还原 甲醇氧化 抗中毒能力 |
| 收稿时间： | 2015-05-08 |
One-Step Synthesis of Reduced Graphene Oxide supported Pt Nanoparticles and Its Electrocatalytic Activity for Methanol Oxidation |
| |
| Authors: | Hai-Li GAO Xiao-Long LI Wei HE Rui-Ting GUO Bo CHAI |
| |
| Institution: | 1. Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China;2. Henan Provincial Key Laboratory of Surface Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450001, P. R. China |
| |
| Abstract: | In this study, graphite oxide was prepared from natural graphite powder using a modified Hummers method. Well-dispersed Pt nanoparticles were synthesized on reduced graphene oxide (RGO) via a simple one-step chemical reduction method in ethylene glycol (EG) by simultaneous reduction of graphene oxide (GO) and chloroplatinic acid. The microstructure, composition, and morphology of the synthesized materials were characterized with Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM). It is shown that the GO was reduced to RGO, and the Pt nanoparticles with an average particle size of 2.3 nm were well dispersed on the surface of RGO. The catalytic performance of the catalysts for methanol oxidation was investigated by cyclic voltammetry and amperometric method, which indicated that Pt/RGO catalyst had higher electrocatalytic activity and stability for the oxidation of methanol than the Pt/C and Pt/CNT catalysts. The If/Ib of Pt/RGO reached 1.3, which was 2.2 and 1.9 times as high as those of Pt/C and Pt/CNT catalysts, respectively, revealing that Pt/RGO had high poisoning tolerance to the COad intermediate species produced in the methanol oxidation reaction. |
| |
| Keywords: | Pt nanoparticle Graphene Chemical reduction Methanol oxidation Poisoning tolerance |
|
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
