催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (8): 708-712.

• 研究论文 • 上一篇    下一篇

直接甲醇燃料电池电催化剂载体碳纳米带的合成与表征

齐静1,2,高颖2,唐水花1,姜鲁华1,闫世友1,郭军松1,辛勤1,3,孙公权1   

  1. 1 中国科学院大连化学物理研究所, 辽宁大连 116023; 2 哈尔滨师范大学化学系, 黑龙江哈尔滨 150080; 3 中国科学院大连化学物理研究所催化基础国家重点实验室, 辽宁大连 116023
  • 收稿日期:2006-08-25 出版日期:2006-08-25 发布日期:2010-09-28

Synthesis and Characterization of Carbon Nanoribbons as Electrocatalyst Supports for Direct Methanol Fuel Cells

QI Jing1,2, GAO Ying2, TANG Shuihua1, JIANG Luhua1, YAN Shiyou1, GUO Junsong1, XIN Qin1,3, SUN Gongquan1*   

  1. 1 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2 Department of Chemistry, Harbin Normal University, Harbin 150080, Heilongjiang, China; 3 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2006-08-25 Online:2006-08-25 Published:2010-09-28

PDF

896

被引次数

33

摘要： 以间苯二酚和甲醛为碳前体,合成了一种新型碳纳米材料碳纳米带(CNRs), 并采用透射电镜(TEM)、 X射线衍射(XRD)及氮气吸附/脱附测试对CNRs进行了结构表征. 结果表明,所合成的CNRs具有很高的石墨化程度及较规则的带状结构,带宽约为8～20 nm, BET比表面积为283 m2/g, 氮气等温线为type-Ⅳ型,表明CNRs为中孔结构,平均孔径约为8.2 nm. 以CNRs为载体通过多元醇法制备了45%PtRu/CNRs电催化剂,该催化剂与以Vulcan XC-72R为载体的PtRu电催化剂相比,直接甲醇燃料电池单池性能得到明显提高.

关键词: 电催化剂, 载体, 碳纳米带, 直接甲醇燃料电池

Abstract: Carbon nanoribbons (CNRs) were synthesized using the resorcinol-formaldehyde gel as a precursor and were characterized by X-ray diffraction, transmission electron microscopy, and nitrogen adsorption-desorption. CNRs are highly graphitized and the width of the ribbon is 8-20 nm. The BET surface area of CNRs is 283 m2/g, and the nitrogen isotherm for the CNRs with an average pore size of 8.2 nm is classified as type-Ⅳ. A platinum-based binary electrocatalyst, PtRu/CNRs, using CNRs as the support and having a metal loading of 45% was prepared using a modified polyol process. The performance of the single cell using PtRu/CNRs as the anode electrocatalyst is significantly improved when compared with that using Vulcan XC-72R as the support, indicating that CNRs are promising electrocatalyst supports for direct methanol fuel cells.

Key words: electrocatalyst, support, carbon nanoribbon, direct methanol fuel cell