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电化学  2006 

氧化铁镍电极上析氧反应的电化学研究(英文)

, PP. 154-158

Keywords: 氧化铁镍,电催化

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Abstract:

应用射频反应磁控溅射法制备阳极催化氧化铁镍薄膜,由循环伏安、线性扫描伏安、极化曲线和电化学交流阻抗谱等研究发生在该电极上的氧化反应.结果表明,作为活化中心的铁能使过电势降低,并且随着溅射过程氧流量的增加催化性能增强,铁的掺入使得速率限定步骤由OH-的释放变为氧原子的结合.与镍相比,氧化铁镍是更理想的催化阳极材料,当电流密度为50mA/cm2时,其氧的过电势比镍的下降了500mV.

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