Ag-Cu双金属纳米粒子的制备及其电催化性质  

Preparation and Electrocatalysis of Silver-Copper Bimetallic Nanoparticles

作　　者：李中春[1] 陈旭红[1] 赵兴红[1] 赵祯怡[2] 

机构地区：[1]江苏技术师范学院江苏省贵金属深加工技术及应用重点建设实验室,江苏常州213001 [2]江苏技术师范学院东方学院,江苏常州213001

出　　处：《江苏技术师范学院学报》2010年第9期49-53,共5页Journal of Jiangsu Teachers University of Technology

基　　金：江苏省普通高校自然科学研究计划资助项目(08KJB150007);江苏省贵金属深加工技术及应用重点建设实验室开放研究课题基金资助项目(SYGK0712);江苏技术师范学院青年基金资助项目(KYZ08023)

摘　　要：在β-环糊精(β-CD)溶液中,用柠檬酸三钠还原AgNO3制备了银纳米粒子,以银纳米粒子为晶种,用水合肼还原CuSO4制备Ag-Cu双金属纳米粒子,并用紫外—可见光谱(Uv-vis)、透射电子显微镜(TEM)、选区电子衍射(SAED)、X射线粉末衍射(XRD)等表征所制备的Ag-Cu双金属纳米粒子。用循环伏安法对Ag-Cu双金属纳米粒子修饰的玻碳电极的电化学性能进行测试,实验结果表明Ag-Cu双金属纳米粒子对H2O2的电化学氧化基本没有催化作用。Silver nanoparticles were generated in β-CD solutions in which trisodium citrate serves as the reducing agent.Then silver-copper bimetallic nanoparticles were formed by using a simple silver seed-mediated growth method.Uv-visible spectra（Uv-vis）,transmission electronic microscopy（TEM）,X-ray diffraction（XRD） and selected area electron diffraction（SAED） were used to characterize the obtained silver-copper bimetallic nanoparticles.The electrochemical performance of Ag-Cu bimetallic nanoparticles / glassy carbon（GC）electrode was investigated by cyclic voltammetry method.The results showed that the Ag-Cu / GC electrode did not have electrocatalytic activity for H2O2 oxidation.

关 键 词：双金属 制备 电催化 

分 类 号：O614.122[理学—无机化学]