| 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 |
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| 引用本文： | 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,2008,14(2):218. |
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| 作者姓名： | 甄春花 范纯洁 孙世刚 |
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| 作者单位： | 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;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;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 |
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| 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.
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| 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 |
| 收稿时间： | 2008-05-28 |
Cyclic Voltammetry and in situ FTIR Studies of Cyanide Adsorption on Nanostructured Au Film Electrode in Alkaline Solutions |
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| 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].Electrochemistry,2008,14(2):218. |
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| Authors: | ZHEN Chun-Hua FAN Chun-Jie SUN Shi-Gang |
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| Institution: | ZHEN Chun-Hua,FAN Chun-Jie,SUN Shi-Gang(Department of chemistry,College of Chemistry , Chemical Engineering,State Key Laboratory of PhysicalChemistry of Solid Surfaces,Xiamen University,Xiamen 361005,Fujian,China) |
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| 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 incr... |
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| Keywords: | cyanide adsorption nanostructured Au thin film in situ FTIR AIREs |
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