纳米薄膜合金电极上二氧化碳电催化还原的红外光谱研究  

In Situ FTIRS Studies of CO_2 Reduction on Thin Film Alloy El ectrodes

作　　者：陈声培[1] 夏盛清[1] 孙世刚 

机构地区：[1]厦门大学固体表面物理化学国家重点实验室,化学系,物化所,厦门361005

出　　处：《光谱学与光谱分析》2000年第5期610-611,共2页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金!(2 99730 35);福建省基金!(E991 0 0 0 3)资助

摘　　要：运用电化学循环伏安和原位FTIR反射光谱 ,研究CO2 的电催化还原过程。结果表明 ,纳米薄膜合金材料Sb Pb Pt/GC对CO2 还原具有较高的活性。还原产物以小分子羧酸和伯醇为主。The nanometer thin film alloy electrode (Sb-P b -Pt/GC)was prepared by electrochemical methods.Excellent catalytic effect was o bserved on these film alloy material in the electro-reduction of carbon dioxide (CO 2).The reduction can take place at potentials as high as -0 4 V.The oxid ation of reduced products of CO 2 on Sb-Pb-Pt/GC yielded current peaks at arr owd -0 08,0 2 and 0 3 V,while the oxidation of reduction products on a nm-P t/GC electrode gave rise a current peak near 0 4 V.The in situ FTIR spectroscop ic studies confirmed at a molecule level that the products of CO 2 reduction on Sb-Pb-Pt/GC are mainly organic acid and alcoholic compounds,while on a nm-Pt /GC electrode the production of CO 2 is mainly CO species.

关 键 词：原位FTIRS CO2 电催化还原 纳米薄膜合金电极 

分 类 号：O613.71[理学—无机化学] O643.32[理学—化学]