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电化学  2009 

不同载量Ir/C催化剂对氨氧化的电催化性能

, PP. 387-391

Keywords: Ir/C催化剂,氨气氧化,催化活性,Ir载量

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Abstract:

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NaClO4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%(bymass)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.

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