| 和频振动光谱研究多晶金电极/溶液界面乙腈分子取向的flip-flop行为 |
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| 引用本文： | 黄芝,唐鑫,邓罡华,周恩财,王鸿飞,郭源.和频振动光谱研究多晶金电极/溶液界面乙腈分子取向的flip-flop行为[J].电化学,2011(2):134-138. |
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| 作者姓名： | 黄芝 唐鑫 邓罡华 周恩财 王鸿飞 郭源 |
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| 作者单位： | 中国科学院化学研究所分子反应动力学国家重点实验室;天津艾达恒晟科技发展有限公司;Division;Scientific;Resource;Environmental;Molecular;Science;Laboratory;Pacific;Northwest;National;Washington; |
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| 基金项目： | 国家自然科学基金(20773143); 973(2007CB815205)资助 |
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| 摘 要： | 应用和频振动光谱研究乙腈/金电极界面吸附,观测到乙腈的甲基振动峰强度随电极电势而变化.当电极电势越过零电荷电势(pzc)时,甲基振动峰符号发生反转,这意味着该基团取向发生反转(flip-flop).由此而推断乙腈分子在金电极界面的吸附构型.即在零电荷电势下,电极界面吸附的乙腈分子构型为甲基靠近电极表面而腈基远离电极表面...
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| 关 键 词： | 和频振动光谱 取向反转 金电极 乙腈 |
The Flip-Flop Behavior of Acetonitrile at Au Electrode Surface Investigated by Sum Frequency Generation Vibrational Spectroscopy |
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| HUANG Zhi,TANG Xin,DENG Gang-hua,ZHOU En-cai,WANG Hong-fei,GUO Yuan.The Flip-Flop Behavior of Acetonitrile at Au Electrode Surface Investigated by Sum Frequency Generation Vibrational Spectroscopy[J].Electrochemistry,2011(2):134-138. |
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| Authors: | HUANG Zhi TANG Xin DENG Gang-hua ZHOU En-cai WANG Hong-fei GUO Yuan |
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| Institution: | HUANG Zhi1,TANG Xin1,DENG Gang-hua1,ZHOU En-cai2,WANG Hong-fei3,GUO Yuan1(1.State Key Laboratory of Molecular Reaction Dynamics,Institute of Chemistry Chinese Academy of Sciences,Beijing 100190,China,2.Tianjin Aida Hengsheng Technology Co.Lt d.,Tianjin 300200,3.Division of Scientific Resource Environmental Molecular Science Laboratory,Pacific Northwest National Laboratory,USA) |
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| Abstract: | The electrochemical interface between liquid acetonitrile and polycrystal gold electrode is investigated by in situ infrared visible sum frequency generation spectroscopy(SFG-VS).The structure of acetonitrile adsorbed at polycrystal gold electrode surface is studied as a function of electrode potential.The SFG spectra of CH3 group indicate acetonitrile orients in response to the electrode potential.The SFG signal of CH3 group turns lower as the electrode potential changes from-700 mV to 300 mV,and vanishes ... |
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| Keywords: | sum frequency generation vibrational spectroscopy flip-flop gold electrode acetonitrile |
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