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研究论文

直接甲醇燃料电池如何获益于碳酸盐介质(英文)

  • 庄林 ,
  • 汪洋 ,
  • 陆君涛
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  • 武汉大学化学系!湖北武汉430072,武汉大学化学系!湖北武汉430072,武汉大学化学系!湖北武汉430072

收稿日期: 2001-02-28

  修回日期: 2001-02-28

  网络出版日期: 2001-02-28

How Can Direct Mthanol Fuel Cell Benefit from Carbonate Media

  • ZHUANG Lin  ,
  • WANG Yang ,
  • LU Jun tao
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  • (Dept. of Chem., Wuhan Univ., Wuhan 430072, China

Received date: 2001-02-28

  Revised date: 2001-02-28

  Online published: 2001-02-28

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 .

本文引用格式

庄林 , 汪洋 , 陆君涛 . 直接甲醇燃料电池如何获益于碳酸盐介质(英文)[J]. 电化学, 2001 , 7(1) : 18 -24 . DOI: 10.61558/2993-074X.3235

Abstract

The kinetics of methanol oxidation and oxygen reduction in 0.5 mol/L K 2CO 3 were compared with those in 0.5 mol/L H 2SO 4. Experiments revealed that carbonate media could be more beneficial to direct methanol fuel cell(DMFC).Firstly, both electrode reactions show better performance in the carbonate than in the acid; secondly, materials other than noble metals become possible to be used as the anodic and cathodic catalysts;thirdly, the potential dectease caused by methanol crossover could be depressed by using metal oxide catalysts not stable in acid, such as MnO 2.

参考文献

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