不同载量Ir/C催化剂对氨氧化的电催化性能

doi:10.61558/2993-074X.2013

电化学（中英文） ›› 2009, Vol. 15 ›› Issue (4): 387-391. doi: 10.61558/2993-074X.2013

不同载量Ir/C催化剂对氨氧化的电催化性能

蒋玉芝;孔庆梅;陆天虹;周益明;唐亚文;

南京师范大学江苏省生物功能材料重点实验室化学与环境科学学院;

收稿日期:2009-11-28 修回日期:2009-11-28 出版日期:2009-11-28 发布日期:2009-11-28

Electrocatalytic Performance of Carbon Supported Ir Catalysts with Different Ir Loadings for Ammonia Oxidation

JIANG Yu-zhi,KONG Qing-mei,LU Tian-hong,ZHOU Yi-ming,TANG Ya-wen*

(Jiangsu Key Laboratory of Biofunctional Materials,School of Chemistry andEnvironmental Science,Nanjing Normal University,Nanjing 210097,China

Received:2009-11-28 Revised:2009-11-28 Published:2009-11-28 Online:2009-11-28

摘要/Abstract

摘要： 研究电流型电化学氨气传感器阳极碳载Ir(Ir/C)催化剂电催化NH3氧化性能.实验表明,在NaC lO4中性电解液中,Ir/C催化剂对NH3氧化的电催化性能与Ir载量有关.其中以Ir载量为10%(by m ass)的Ir/C催化剂的电催化性能最好,稳定性和灵敏度也最高.此外,NH3在不同载量的Ir/C催化剂上电催化氧化的电流密度与NH3浓度均呈现出良好的线性关系,此类Ir/C催化剂在电流型电化学氨气传感器中可望有良好的应用前景.

关键词: Ir/C催化剂, 氨气氧化, 催化活性, Ir载量

Abstract: The electrocatalytic performance of the Ir/C catalyst as the anodic catalyst in the amperometric and electrochemical NH3 sensor was investigated.The experimental results illustrated that in the NaClO4 neutral electrolyte,the electrocatalytic performance of the Ir/C catalyst for the NH3 oxidation is related to the Ir loading in the Ir/C catalyst.Among the Ir/C catalysts with different Ir loading,the best electrocatalytic activity,stability and sensitivity were achieved by the Ir/C catalyst with 10% Ir loadings.In addition,the current densities of the NH3 oxidation at the Ir/C catalysts with the different Ir loadings were linearly proportional to the NH3 concentration.The Ir/C catalyst has a potential application in the amperometric and electrochemical NH3 sensor.

Key words: Ir/C catalyst, ammonia oxidation, Ir loading, activity

中图分类号:

O643.36

蒋玉芝, 孔庆梅, 陆天虹, 周益明, 唐亚文, . 不同载量Ir/C催化剂对氨氧化的电催化性能[J]. 电化学（中英文）, 2009, 15(4): 387-391.

JIANG Yu-zhi, KONG Qing-mei, LU Tian-hong, ZHOU Yi-ming, TANG Ya-wen. Electrocatalytic Performance of Carbon Supported Ir Catalysts with Different Ir Loadings for Ammonia Oxidation[J]. Journal of Electrochemistry, 2009, 15(4): 387-391.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.2013

https://electrochem.xmu.edu.cn/CN/Y2009/V15/I4/387

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不同载量Ir/C催化剂对氨氧化的电催化性能

Electrocatalytic Performance of Carbon Supported Ir Catalysts with Different Ir Loadings for Ammonia Oxidation

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