Thermodynamic and kinetic considerations for ethanol electrooxidation in direct ethanol fuel cells

被引：33
|
作者：
Song Shuqin [1 ]
Wang Yi [1 ]
Shen Peikang [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2007年 / 28卷 / 09期
关键词：
direct ethanol fuel cell; thermodynamic analysis; kinetic analysis; ethanol electrooxidation;
D O I：
10.1016/S1872-2067(07)60063-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Thermodynamic and kinetic considerations for the ethanol electrooxidation in a proton exchange membrane fuel cell (PEMFC) were discussed. Theoretical calculations show that direct ethanol fuel cells (DEFCs) exhibit better exergic efficiency than ethanol reforming PEMFC. The thermodynamic analysis show that when temperature is lower than 100 Ic, the conversion of ethanol steam reforming is less than 14% for ethanol complete oxidation. The kinetic study shows that PtSn/C anodes have a relatively high activity for ethanol electrooxidation, but such activity is not high enough for ethanol complete electrooxidation. The thermodynamic and kinetic analyses suggest that the cell temperature is one of the key factors for the DEFC development.
引用
收藏
页码：752 / 754
页数：3
相关论文
共 8 条
  • [1] Effects of treatment in different atmosphere on Pt3Sn/C electrocatalysts for ethanol electro-oxidation
    Jiang, LH
    Zhou, ZH
    Li, WZ
    Zhou, WJ
    Song, SQ
    Li, HQ
    Sun, GQ
    Xin, Q
    [J]. ENERGY & FUELS, 2004, 18 (03) : 866 - 871
  • [2] The effect of the MEA preparation procedure on both ethanol crossover and DEFC performance
    Song, S
    Wang, G
    Zhou, W
    Zhao, X
    Sun, G
    Xin, Q
    Kontou, S
    Tsiakaras, P
    [J]. JOURNAL OF POWER SOURCES, 2005, 140 (01) : 103 - 110
  • [3] The effect of methanol and ethanol cross-over on the performance of PtRu/C-based anode DAFCs
    Song, SQ
    Zhou, WJ
    Liang, ZX
    Cai, R
    Sun, GQ
    Xin, Q
    Stergiopoulos, V
    Tsiakaras, P
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 55 (01) : 65 - 72
  • [4] Exergy analysis of an ethanol fuelled proton exchange membrane (PEM) fuel cell system for automobile applications
    Song, SQ
    Douvartzides, S
    Tsiakaras, P
    [J]. JOURNAL OF POWER SOURCES, 2005, 145 (02) : 502 - 514
  • [5] Multi-wall carbon nanotube supported Pt-Sn nanoparticles as an anode catalyst for the direct ethanol fuel cell
    Zhao, XS
    Li, WZ
    Jiang, LH
    Zhou, WJ
    Xin, Q
    Yi, BL
    Sun, GQ
    [J]. CARBON, 2004, 42 (15) : 3263 - 3265
  • [6] Zhou WJ, 2004, J POWER SOURCES, V131, P217, DOI 10.1016/j jpowsour.2003.12.040
  • [7] Direct ethanol fuel cells based on PtSn anodes: the effect of Sn content on the fuel cell performance
    Zhou, WJ
    Song, SQ
    Li, WZ
    Zhou, ZH
    Sun, GQ
    Xin, Q
    Douvartzides, S
    Tsiakaras, P
    [J]. JOURNAL OF POWER SOURCES, 2005, 140 (01) : 50 - 58
  • [8] Pt based anode catalysts for direct ethanol fuel cells
    Zhou, WJ
    Zhou, ZH
    Song, SQ
    Li, WZ
    Sun, GQ
    Tsiakaras, P
    Xin, Q
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 46 (02) : 273 - 285
1