Sb-Pb-Pt/GC电极上草酸还原过程的循环伏安和原位红外反射光谱研究  

Study of Reduction of Oxalic Acid on Sb Pb Pt/GC Electrode Using CV and in situ FTIR

作　　者：陈声培[1] 夏盛清[1] 孙世刚[1] 

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,福建厦门361005

出　　处：《精细化工》2000年第z1期87-90,共4页Fine Chemicals

基　　金：福建省自然科学基金 !(E9910 0 0 3 );国家自然科学基金! (2 983 3 0 60 )资助课题

摘　　要：通过电化学方法和原位FTIR反射光谱等技术 ,对自行研制的碳载Sb Pb Pt纳米材料电极 ,在有机电合成中的性能进行了研究。结果表明 :该电极对草酸的加氢还原表现出很高的电催化活性 ,草酸的还原电位为 - 0 40V ,与铅阴极相比 ,正移约 6 0 0mV ;电化学原位FTIR反射光谱研究结果指出 ,草酸的还原产物主要为乙醛酸。Reduction of oxalic acid on electrode made of Sb-Pb-Pt nano-material supported on glassy carbon was studied with cyclic voltammetry and in-situ FTIR spectroscopy.The results demonstrated that the alloy thin film exhibited high electrocatalytic activity for oxalic acid reduction.The reduction potential was significantly reduced (about 600 mV) in comparison with a lead cathode used industrially for the reduction.Species of the main product identified by in-situ FTIR spectroscopy were glyoxylic acid.This illustrated that the alloy film electrode exhibited excellent selectivity for oxalic acid reduction.

关 键 词：草酸 乙醛酸 Sb-Pb-Pt/GC 

分 类 号：TQ[化学工程]