摘要
在PEG6000/Vc/HAuCl4体系中,利用Vc还原HAuCl4制备了金纳米粒子,以制备的金纳米粒子为晶种,用水合肼还原硫酸铜制备了Au-Cu复合纳米粒子,并用紫外-可见光谱(Uv-vis)、透射电子显微镜(TEM)、X射线粉末衍射(XRD)、选区电子衍射(SAED)对其进行表征。用循环伏安法研究Au-Cu复合纳米粒子修饰的玻碳电极对H2O2电化学氧化的催化作用,实验结果表明,Au-Cu复合纳米粒子对H2O2电化学氧化具有一定的催化活性。
Gold nanoparticles were prepared in PEG6000/Vc/HAuCl4 system by using Vc as reducing agent. Then gold-copper composite nanoparticles were synthesized by gold seeds growth method. Uv-visible spectra （Uvv-is）,transmission electronic microscop （TEM）,X-ray diffraction （XRD）, and selected area electron diffraction （SAED） were used to characterize the obtained gold-copper composite nanoparticles. The electrochemical performance of gold-copper composite nanoparticles / glassy carbon （GC） electrode was investigated by cyclic vohammetry method. The results revealed that the electrode of gold-copper composite nanoparticles / GC had electrocatalytic activity for H2O2 oxidation.
出处
《化学工程师》
CAS
2010年第4期17-20,共4页
Chemical Engineer
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其应用重点建设实验室开放研究课题基金资助项目(SYGK0712)
关键词
复合纳米粒子
制备
电催化
composite nanoparticles
preparation
electrocatalysis
