Fabrication of gold nanoparticles with different morphologies in HEPES buffer

查看全文 作　　者：CHEN [1,2]Rong;WU [1]Jiliang;LI [1]Hui;CHENG [1]Gang;LU [1]Zhong;CHE Chi-[2]Ming

机构地区：[1]School of Chemical Engineering and Pharmacy, Key Laboratory for Green Chemical Process(Ministry of Education), Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430074, China;[2]Department of Chemistry and the HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong, China

出　　处：《Rare Metals》索引2010年第29卷第2期,共7页

基　　金：supports from the Program for Excellent Talents of the Department of Education of Hubei Province, China (No. Q20081504);the Area of Excellence Scheme administered by the University Grant Committee and the University of Hong Kong (No.AoE/ P-10/ 01) 摘　　要：Gold nanoparticles with different morphologies, such as spindle, octahedron, and decahedron were obtained by using different molar ratios of HAuCl4/HEPES in the presence and absence of surfactants at room temperature.These nanoparticles were characterized by X-ray diffraction(XRD), transmission electron microscopy(TEM), high-resolution transmission electron microscopy(HRTEM), scanning electron microcopy(SEM), energy-dispersive X-rays analysis(EDX), and selected area electron diffraction(SAED).The kinetics of the formation of gold nanoparticles in HEPES buffer was studied by UV-visible spectrophotometer.The formation of gold nanoparticles was strongly dependent on the concentration of HEPES and pH value.The surfactants play a crucial role in the size and shape controlled synthesis of gold nanoparticles. 关键词：金纳米粒子培养基缓冲区高分辨透射电子显微镜形貌紫外可见分光光度计扫描电子显微镜表面活性剂

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Fabrication of gold nanoparticles with different morphologies in HEPES buffer

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