直接甲醇燃料电池如何获益于碳酸盐介质(英文)

被引:2
作者
庄林
汪洋
陆君涛
机构
[1] 武汉大学化学系!湖北武汉
关键词
直接甲醇燃料电池; 碳酸盐介质; 电催化;
D O I
10.13208/j.electrochem.2001.01.003
中图分类号
TM911.4 [燃料电池]; O646 [电化学、电解、磁化学];
学科分类号
0808 ; 081704 ;
摘要
本文通过比较 0 .5mol/LK2 CO3与 0 .5mol/LH2 SO4 中甲醇阳极氧化与氧阴极还原的动力学 ,探讨直接甲醇燃料电池 (DMFC)使用碳酸盐介质的可能性 .实验表明 ,碳酸盐介质比传统的酸性介质具有更多的优点 :1)在碳酸盐介质中 ,电池的阴阳极反应性能比在酸中的高 ;2 )非贵重金属材料有可能被用作阴阳极催化剂 ;3)由于可能使用对甲醇不敏感的金属氧化物 (如MnO2 )作阴极催化剂 ,甲醇穿透隔膜于阴极放电的难题有望克服 .
引用
收藏
页码:18 / 24
页数:7
相关论文
共 18 条
[1]  
Direct_fuelled fuel cells. Waidhas M,Drenckhahn W,Preidel W,Landes H. Journal of Power Sources . 1996
[2]  
State and action of the tin atoms in platinum_tin catalysts for methanol fuel cells. Janssen M,Moolhuysen J. Journal of Catalysis . 1977
[3]  
Electrocatalytic reduction of dioxygen at macrocycle conducting polymer electrodes in acid media. Mouahid O,Coutanceau C. Belgsir E,et al. Journal of Electroanalytical Chemistry . 1997
[4]  
Combinatorial electrochemistry: a highly parallel, optical screening method for discoveryof better electrocatalysts. Reddington E,Sapienza A,Gurau B,et al. Science . 1998
[5]  
Perovskite anode electrocatalysis for direct methanol fuel cells. White J,Sammells A. Journal of the Electrochemical Society . 1993
[6]  
Anodic oxidation of methanol using a new base electrocatalyst. Burstein G,Barnett C,Kucernak A,Williams K R. Journal of the Electrochemical Society . 1996
[7]  
Performance of a direct methanol polymer electrolyte fuel cell. Jung D,Lee C,Kim C,Shin D. J. Journal of Power Sources . 1998
[8]  
Conducting polymer electrodes modified by metal tetrasalfonated phthalocyanines: preparation and electrocatalytic behaviour towards dioxygen reduction in acid medium. Coutanceau C,Hourch A,Crouigneau P,et al. Electrochimica Acta . 1995
[9]  
Electrocatalytic oxidation of methanol on platinum_base binary electrodes. Beden B,Kadirgan F,Lamy C,Leger J. Journal of Electroanalytical Chemistry . 1981
[10]  
Developing the self_contained hydrogen reference electrode. Gong,S,Lu J,Yan H. Journal of Electroanalytical Chemistry . 1997