The use of nitrogen-doped graphene supporting Pt nanoparticles as a catalyst for methanol electrocatalytic oxidation
The use of nitrogen-doped graphene supporting Pt nanoparticles as a catalyst for methanol electrocatalytic oxidation
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氮掺杂石墨烯负载Pt纳米颗粒作为甲醇电催化氧化催化剂
DOI：
10.1016/j.carbon.2012.09.019
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发表时间：
2013-02
期刊：
影响因子：
10.9
通讯作者：
Zongping Shao
中科院分区：
文献类型：
--
作者：
Bin Xiong;Yingke Zhou;Yuanyuan Zhao;Jie Wang;Xia Chen;Ryan O’Hayre;Zongping Shao
以氧化石墨烯为原料，在氨水中进行不同温度的热处理，制备了掺氮石墨烯(N-G)。将制得的N-G作为铂纳米粒子的导电载体，考察了其对甲醇氧化的电催化活性。采用X-射线衍射仪、扫描和透射电子显微镜、X-射线光电子能谱对催化剂的微观结构和形貌进行了表征。用循环伏安法考察了催化剂对甲醇氧化反应的催化活性。与未掺杂石墨烯负载的铂催化剂相比，铂/N-G材料对甲醇氧化表现出更高的电化学活性。Pt/N-G优异的电化学性能主要归功于氮的掺杂和铂颗粒在掺杂的石墨烯载体上的均匀分布。这些结果表明，N掺杂石墨烯作为燃料电池电催化的高性能催化剂载体具有很大的潜力。
Nitrogen-doped graphene (N-G) was prepared by thermal annealing of graphene oxide in ammonia at different temperatures. The resultant N-G was used as a conductive support for Pt nanoparticles (Pt/N-G) and the electrocatalytic activity of the Pt/N-G catalysts towards methanol oxidation was examined. To investigate the microstructure and morphology of the synthesized catalysts, X-ray diffraction, scanning and transmission electron microscopy and X-ray photoelectron spectroscopy were used. The catalytic activity of the catalysts towards the oxidation of methanol was evaluated by cyclic voltammetry. Compared to a control catalyst of Pt loaded on undoped graphene, the Pt/N-G materials show higher electrochemical activity towards methanol oxidation. The excellent electrochemical performance of Pt/N-G is mainly attributed to the nitrogen doping and the uniform distribution of Pt particles on the doped graphene support. These results indicate that N-doped graphene has great potential as a high-performance catalyst support for fuel cell electrocatalysis.
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影响因子：
16.6
作者：
Rourke, Jonathan P.;Pandey, Priyanka A.;Wilson, Neil R.
通讯作者：
Wilson, Neil R.
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：
10.9
作者：
S. Choi;M. Seo;H. J. Kim;W. Kim
通讯作者：
S. Choi;M. Seo;H. J. Kim;W. Kim
影响因子：
9.2
作者：
Yuyan Shao;S. Zhang;R. Kou;Xiqing Wang;Chong-Min Wang;S. Dai;V. Viswanathan;Jun Liu;Yong Wang;Yuehe Lin
通讯作者：
Yuyan Shao;S. Zhang;R. Kou;Xiqing Wang;Chong-Min Wang;S. Dai;V. Viswanathan;Jun Liu;Yong Wang;Yuehe Lin
影响因子：
3.6
作者：
Shao-Horn, Y.;Sheng, W. C.;Morgan, D.
通讯作者：
Morgan, D.