催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (2): 197-201.

• 研究论文 • 上一篇    

中空石墨碳材料作为电催化剂载体在直接乙醇燃料电池中的应用

贾子麒1,2,孙公权1,曹雷1,2,汪国雄1,辛勤1,3   

  1. 1 中国科学院大连化学物理研究所, 辽宁大连 116023; 2 中国科学院研究生院, 北京 100049; 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:2008-02-25 出版日期:2008-02-25 发布日期:2012-01-15

Hollow Graphitic Cabon as Electrocatalyst Support for Direct Ethanol Fuel Cells

JIA Ziqi1,2, SUN Gongquan1*, CAO Lei1,2, WANG Guoxiong1, XIN Qin1   

  1. 1 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2008-02-25 Online:2008-02-25 Published:2012-01-15

PDF

1082

被引次数

8

摘要： 以间苯二酚、苯酚与甲醛为前体,合成了一种中空石墨碳材料(hollow graphitic carbon, HGC). 透射电镜(TEM)、N2吸附-脱附和Raman光谱测试结果表明,所制备的HGC为中孔结构,平均孔径为36 nm. 与商品Vulcan XC-72R相比, HGC中孔结构丰富,石墨化程度高. 分别以HGC和XC-72R为载体制备了总金属载量为45%的PtSn/C电催化剂, X射线衍射和TEM结果表明这两个样品的平均粒径和晶格常数相近. 单池性能测试表明,以45%PtSn/HGC为阳极催化剂的直接乙醇燃料电池的最大功率密度达到了62 mW/cm2,与PtSn/XC-72R的54 mW/cm2相比提高了近15%.

关键词: 电催化剂, 中空石墨碳, 直接乙醇燃料电池, 碳载体

Abstract: A hollow graphitic carbon (HGC) material was synthesized using resorcinol, phenol, and formaldehyde. The characterization by transmission electron microscopy (TEM), N2 adsorption-desorption, and Raman spectroscopy showed that the highly graphitized HGC is a mesoporous material with an average pore size of 36 nm. Compared with the commercial Vulcan XC-72R carbon, HGC has more mesopore volume and higher graphitic character. The 45%PtSn/C electrocatalysts were prepared using HGC and XC-72R as supports and characterized by X-ray diffraction and TEM. These two kinds of electrocatalysts have similar particle size and lattice parameter. The single cell test of DEFCs (direct alcohol fuel cells) showed that the peak power density is increased from 54 mW/cm2 of PtSn/XC-72R to 62 mW/cm2 of PtSn/HGC.

Key words: electrocatalyst, hollow graphitic carbon, direct ethanol fuel cell, carbon support