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电化学  2009 

铂纳米粒子电极上NO吸附和还原的CV及原位FTIR研究

, PP. 392-396

Keywords: 铂纳米粒子,电催化,NO,吸附和还原,原位FITR反射光谱

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Abstract:

运用电化学循环伏安法(CV)和原位傅里叶变换红外反射光谱(insituFTIRS)研究了酸性介质中铂纳米粒子电极(nm-Pt/GC)上NO吸附及其电催化还原过程.结果表明,NO分子的吸附是电催化还原的重要步骤.在铂纳米粒子电极上饱和吸附的NO存在两种不同键合强度的吸附态,其中弱吸附的NO(NOW)在0.60V至-0.05V电位区间还原生成N2O和NH4+;而强吸附的NO(NOS)则在-0.05V至-0.15V区间还原,其产物为NH+.

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