纳米金膜电极上CN~-吸附的电化学和原位红外反射光谱研究

doi:10.61558/2993-074X.1895

电化学（中英文） ›› 2008, Vol. 14 ›› Issue (2): 218-222. doi: 10.61558/2993-074X.1895

纳米金膜电极上CN~-吸附的电化学和原位红外反射光谱研究

甄春花;范纯洁;孙世刚;

厦门大学化学化工学院化学系固体表面物理化学国家重点实验室,厦门大学化学化工学院化学系固体表面物理化学国家重点实验室,厦门大学化学化工学院化学系固体表面物理化学国家重点实验室福建厦门361005,福建厦门361005,福建厦门361005

收稿日期:2008-05-28 修回日期:2008-05-28 出版日期:2008-05-28 发布日期:2008-05-28

Cyclic Voltammetry and in situ FTIR Studies of Cyanide Adsorption on Nanostructured Au Film Electrode in Alkaline Solutions

ZHEN Chun-Hua,FAN Chun-Jie,SUN Shi-Gang

(Department of chemistry,College of Chemistry and Chemical Engineering,State Key Laboratory of PhysicalChemistry of Solid Surfaces,Xiamen University,Xiamen 361005,Fujian,China

Received:2008-05-28 Revised:2008-05-28 Published:2008-05-28 Online:2008-05-28

摘要/Abstract

摘要： 应用循环伏安(CV)和原位红外反射光谱(in situFTIRS)研究碱性介质中氰(CN-)在纳米金膜电极(nm-Au/GC)上的吸附行为.结果显示,当研究电极电位低于0.0 V时,CN-可稳定吸附在nm-Au/GC电极表面,高于0.0 V,则发生氧化脱附.发现nm-Au/GC表面具有异常红外效应(AIREs),即吸附态CN-谱峰呈现出与本体Au电极不同的方向倒反、红外吸收增强(39.2倍)以及半峰宽增加的异常光谱特征.本研究将纳米薄膜材料的这一AIREs从过渡金属拓展到币族金属,进一步证明AIREs是迄今研究的金属及合金纳米材料的普遍特性.

关键词: 纳米金膜电极, 氰吸附, 原位红外反射光谱, 异常红外效应

Abstract: The adsorption of cyanide(CN-) on electrodes of nanometer scale thin film of gold supported on glassy carbon(nm-Au/GC) in alkaline solutions were investigated using cyclic voltammetry and in situ FTIR spectroscopy.It has revealed that the electrodeposited nanostructured Au thin film exhibited AIREs(abnormal infrared effects) for CN-adsorption,which manifested 3 nonlinear IR spectral features: inversion of the direction of CN-band,enhancement of IR absorption of adsorbed CN-species(about 39.2 folds) and increase in the FWHM(full width at half maximum) of CN-band.

Key words: cyanide adsorption, nanostructured Au thin film, in situ FTIR, AIREs

中图分类号:

O646.54

甄春花, 范纯洁, 孙世刚, . 纳米金膜电极上CN~-吸附的电化学和原位红外反射光谱研究[J]. 电化学（中英文）, 2008, 14(2): 218-222.

ZHEN Chun-Hua, FAN Chun-Jie, SUN Shi-Gang. Cyclic Voltammetry and in situ FTIR Studies of Cyanide Adsorption on Nanostructured Au Film Electrode in Alkaline Solutions[J]. Journal of Electrochemistry, 2008, 14(2): 218-222.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.1895

https://electrochem.xmu.edu.cn/CN/Y2008/V14/I2/218

参考文献

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纳米金膜电极上CN~-吸附的电化学和原位红外反射光谱研究

Cyclic Voltammetry and in situ FTIR Studies of Cyanide Adsorption on Nanostructured Au Film Electrode in Alkaline Solutions

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