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CO adsorption on electrode of Pt nanoparticles investigated by cyclic voltammetry and in situ FTIR spectroscopy

机译：循环伏安法和原位红外光谱研究CO对Pt纳米颗粒电极的吸附

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Pt nanoparticles were prepared by the chemical reduction method. The average diameter of Pt nanoparticles was determined to be 2.5 nm by TEM. The electrochemical properties of Pt nanoparticles were studied by cyclic voltammetry. In comparison with massive Pt, the oxidation current peak of CO adsorbed on Pt nanoparticles is broader. Twin adsorbates of CO on Pt nanoparticles were determined by in situ FTIRS for the first time. It has revealed that the linear and twin-bonded CO can be converted into bridge-bonded CO with the variation of electrode potential. A series of special properties of Pt nanoparticles, such as enhanced IR absorption of CO adsorbates, were also observed.

机译：通过化学还原法制备Pt纳米颗粒。通过TEM确定Pt纳米颗粒的平均直径为2.5nm。通过循环伏安法研究了铂纳米粒子的电化学性能。与大量的Pt相比，吸附在Pt纳米颗粒上的CO的氧化电流峰更宽。首次通过原位FTIRS测定了Pt纳米颗粒上CO的双吸附物。结果表明，随着电极电位的变化，线性和双键合的CO可以转化为桥键合的CO。还观察到了Pt纳米颗粒的一系列特殊性能，例如增强了对CO吸附物的IR吸收。

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Chen W; Jiang YX; 姜艳霞; Sun SG; 孙世刚;
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年度 2003
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CO adsorption on electrode of Pt nanoparticles investigated by cyclic voltammetry and in situ FTIR spectroscopy

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