Facile single-step preparation of Pt/N-graphene catalysts with improved methanol electrooxidation activity
Facile single-step preparation of Pt/N-graphene catalysts with improved methanol electrooxidation activity
复制标题
轻松一步制备具有改进甲醇电氧化活性的 Pt/N-石墨烯催化剂
DOI：
10.1007/s10008-012-1968-0
复制
发表时间：
2013-04
影响因子：
2.5
通讯作者：
Zongping Shao
中科院分区：
文献类型：
--
作者：
Yuanyuan Zhao;Yingke Zhou;Bin Xiong;Jie Wang;Xia Chen;Ryan O’Hayre;Zongping Shao
在这项工作中，我们描述了一个简单的单步方法，同时还原氧化石墨烯到石墨烯，石墨烯与氮的功能性掺杂，并使用乙二醇和N-甲基-2-吡咯烷酮的溶剂混合物负载掺杂的石墨烯与分散良好的铂（Pt）纳米粒子。采用X射线粉末衍射、扫描电子显微镜、透射电子显微镜、拉曼光谱和X射线光电子能谱对所制备的Pt/氮掺杂石墨烯（N-graphene）催化剂进行了表征，并采用循环伏安法和计时电流法对催化剂的甲醇氧化性能进行了评价。与未掺杂的Pt/石墨烯对照催化剂相比，Pt/N-石墨烯催化剂显示出更窄的粒度分布和改善的催化性能。考虑到Pt/N-石墨烯催化剂的简单、绿色和有效的一步合成过程，这些结果对于这些材料在新兴燃料电池技术中的潜在应用是有希望的。
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 andN-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.
登录
查看更多内容
增强燃料电池电催化活性的石墨烯负载Pt的制备及表征
影响因子：
9.2
作者：
Xin, Yuchen;Liu, Jian-guo;Zhou, Yong;Liu, Wenming;Gao, Jian;Xie, Yun;Yin, Ying;Zou, Zhigang
通讯作者：
Zou, Zhigang
影响因子：
15
作者：
Li, Xiaolin;Wang, Hailiang;Dai, Hongjie
通讯作者：
Dai, Hongjie
影响因子：
4.5
作者：
Davies, TJ;Moore, RR;Compton, RG
通讯作者：
Compton, RG
影响因子：
32.5
作者：
Xiao Zhao;M. Yin;Liang Ma;Liang Liang-Liang;Changpeng Liu;Jianhui Liao;T. Lu;W. Xing
通讯作者：
Xiao Zhao;M. Yin;Liang Ma;Liang Liang-Liang;Changpeng Liu;Jianhui Liao;T. Lu;W. Xing
影响因子：
--
作者：
Yingke Zhou;Robert M. Pasquarelli;Timothy P. Holme;J. Berry;D. Ginley;R. O'Hayre
通讯作者：
Yingke Zhou;Robert M. Pasquarelli;Timothy P. Holme;J. Berry;D. Ginley;R. O'Hayre