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材料研究学报  2007, Vol. 21 Issue (5): 542-546    
  论文 本期目录 | 过刊浏览 |
Ir修饰碳毡对VO2+/VO+2电对电催化性能的影响
王文红;薛方勤;王新东
引用本文:

王文红; 薛方勤; 王新东 . Ir修饰碳毡对VO2+/VO+2电对电催化性能的影响[J]. 材料研究学报, 2007, 21(5): 542-546.

全文: PDF(798 KB)  
摘要: 用热分解法使Ir包覆到碳毡表面, 经过50次循环充放电后Ir 的附着良好.稳态极化和循环伏安实验结果表明, Ir修饰后的碳毡电极上V(Ⅳ)/V(Ⅴ)的电荷转移极化电阻降低,Ir催化剂降低了V--O键打开和形成的活化能, 从而降低了电池极化.以Ir修饰碳毡为电池正极、酸和热处理的碳毡为负极组成的全钒氧化还原液流电池,在20 mAcm-2充放电时的电压效率达7.5%. 与用未经修饰的碳毡组成的电池相比,电压效率提高6.9%, 内阻降低了25%.
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收稿日期: 1900-01-01     
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