Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (15): 1751-1759. Previous Articles     Next Articles

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石墨化的有序介孔碳的制备及其作为载体的Pt催化剂对甲醇的电催化氧化

汤静, 何建平*, 王涛, 郭云霞, 薛海荣   

  1. (南京航空航天大学材料科学与技术学院 南京 210016)
  • 投稿日期:2010-10-24 修回日期:2011-03-05 发布日期:2011-04-06
  • 通讯作者: 何建平 E-mail:jianph@nuaa.edu.cn
  • 基金资助:

    国家自然科学基金

Synthesis of Highly Ordered and Graphitized Mesoporous Carbon Materials and Pt/mesoporous Carbon Catalyst for Methanol Electro-oxidation

TANG Jing, HE Jian-Ping, WANG Tao, GUO Yun-Xia, XUE Hai-Rong   

  1. (College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016)
  • Received:2010-10-24 Revised:2011-03-05 Published:2011-04-06

Highly ordered mesoporous carbon materials can be directly synthesized via one step templating route, using resol as a carbon precursor, triblock copolymer Pluronic F127 as a template agent and metal salt NiCl2 as an additive of catalytic graphitization. X-ray diffraction (XRD), raman and transmission electron microscope (TEM) show that nickel particles are in the carbon structure in forms of metal nickel and the sample has the higher graphitization degree with ordered mesoporous structure. Under the condition of 700 ℃ and 5 wt% nickel content, we can find plentiful graphitic carbon surrounding Ni particle from the HRTEM photos. The electrocatalytic activity of carbon supported Pt nanoparticles was verified by cyclic voltammetry in H2SO4 and CH3OH solution. Carbon material with higher graphitization degree can enhance its electrocatalytic activity. Pt nanoparticles supported on the carbon material which contains five percent of Ni showed the best performance. Its electrochemical active surface area for hydrogen oxidation was 24.840 m2•g-1 and the peak current of methanol oxidation was 3.92 mA.

Key words: ordered mesoporous carbon, catalytic graphitization, Pt/C catalyst, electrocatalytic activity

CLC Number: