摘要
采用KBH4做还原剂、PVP做保护剂,化学法一步合成Au-Pt合金纳米粒子,应用UV-Vis、TEM、XRD等手段对其进行了表征。将所合成的合金纳米粒子负载在碳黑上,获得Au-Pt双金属碳载催化剂,应用循环伏安法(CV)检测了催化剂对甲醇的电催化氧化活性。研究表明,Au-Pt/C催化剂的催化活性明显高于Pt/C的,说明Au与Pt具有明显的协同作用,同时发现其催化活性与Au、Pt摩尔比有关。
Au-Pt alloy nanoparticles were synthesized by chemical co-reduction method,KBH4 as reducing agent and PVP as protecting agent.Nanoparticles were characterized by UV-vis,TEM and XRD.Electrocatalytic activity of Au-Pt/C alloy catalysts toward methanol oxidation was studied by cyclic voltammetry（CV）.It was found that the catalytic activity of Au-Pt/C catalysts toward methanol is significantly higher than that of Pt/C catalyst,which is related to the molar ratio of Au and Pt.
出处
《贵金属》
CAS
CSCD
北大核心
2011年第1期56-59,共4页
Precious Metals
基金
国家自然科学基金(20863003)
云南省中青年学术技术带头人后备人才培养项目(2007PY01-9)
