太原理工大学学报2018，Vol.49Issue(3)：380-385,6.DOI:10.16355/j.cnki.issn1007-9432tyut.2018.03.002
三元合金Au-Cu-Ni/C纳米粒子对BHˉ4电催化性能的影响
Investigation of Carbon Supported Au-Cu-Ni Ternary Alloy Nanocatalysts for BHˉ4Electrooxidation
摘要
Abstract
In order to restrain BH-4hydrolysis and promote BH-4oxidation in direct boro-hydride fuel cell,Au/C,Au1-Cu4/C and Au0.5-Cu1-Ni1/C nano-particles were synthesized by a conventional polyol reduction method.The results of the physical characterization show that the three as-prepared nanoparticles were uniformly dispersed on the surface of carbon,and the aver-age size was between 8 nm and 1 7 nm.The results of the electrochemical characterizations show that the direct oxidation of BH-4on Au0.5-Cu1-Ni1/C nanoparticles was the most negative,the number of transfer electrons was 6.0 on Au0.5-Cu1-Ni1/C nanoparticles,which was the most due to the oxidation of BH-4,about 6 times than on Au/C nanoparticles.Although the content of no-ble metal Au in Au1-Cu4/C and Au0.5-Cu1-Ni1/C catalysts was the same(20%),the ternary alloy nanocatalyst Au0.5-Cu1-Ni1/C had a smaller charge transfer resistance of 331.9 Ω/cm2,the cata-lytic activity order of the three nano-particles was:Au0.5-Cu1-Ni1/C,Au1-Cu4/C,Au/C.There-fore,it is necessary to develop ternary alloy Au-Cu-Ni/C catalyst based on binary alloy catalyst Au-Cu/C.关键词
三元合金/纳米粒子/BH-4电氧化/交流阻抗/催化性能Key words
ternary alloy/nanoparticles/borohydride electro-oxidation/electrochemical im-pedance spectroscopy/catalytic performance分类
化学化工引用本文复制引用
王泉,卫慧凯,段东红,刘世斌..三元合金Au-Cu-Ni/C纳米粒子对BHˉ4电催化性能的影响[J].太原理工大学学报,2018,49(3):380-385,6.基金项目
山西省自然科学基金资助项目(2015011028) （2015011028）
