Pt/Ni复合材料的电沉积法制备与电催化析氢析氧性能  

Preparation of Pt/Ni composites by electrodeposition,electrocatalytic hydrogen and oxygen precipitation performance

作　　者：周传仓[1] 张飞鹏 吴红玉[1] 苗义高 冯巧 杜玲枝 秦国强 张光磊 ZHOU Chuan-cang;ZHANG Fei-peng;WU Hong-yu;MIAO Yi-gao;FENG Qiao;DU Ling-zhi;QIN Guo-qiang;ZHANG Guang-lei(College of Engineering,Lishui University,Lishui 323000,China;Henan Provincial Engineering Laboratory of Building-Photovoltaics,Institute of Sciences,Henan University of Urban Construction,Pingdingshan 467036,China;School of Materials Sciences&Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]丽水学院工学院,浙江丽水323000 [2]河南城建学院数理学院建筑光伏一体化河南省工程实验室,河南平顶山467036 [3]石家庄铁道大学材料科学与工程学院,河北石家庄050043

出　　处：《河南城建学院学报》2020年第5期88-92,共5页Journal of Henan University of Urban Construction

基　　金：浙江省科技计划公益类项目(2017C31108);河南省高等学校重点科研项目(19B430001)。

摘　　要：采用简易的三电极电沉积工艺,在Ni泡沫上制备三维超分散金属Pt。SEM测试表明薄膜表面光滑平整,XRD分析与EDS分析表明该薄膜主要为金属Pt。Pt/Ni催化剂在0.5 M硫酸溶液中表现出优异的电催化析氢性能,当电流密度为10 mA·cm-2时,过电位为22 mV,塔菲尔斜率为28.8 mV/dec,与传统Pt块材接近。在1 M氢氧化钾溶液中,Pt/Ni具有优异的析氧性能,达到电流密度为10 mA·cm-2,电位仅需1.265 V,塔菲尔斜率为140 mV/dec。A simple three-electrode electrodeposition technology was adopted,which is a preparation process of three-dimensional hyperdisperse metal Pt film on the Ni foam.SEM shows that the films are almost smooth and flattening.XRD and EDS analysis suggest that the film is mainly platinum metal phase.Pt/Ni film catalyst exhibits excellent electrocatalytic hydrogen evolution performance in 0.5M H 2SO4,which possess an overpotential of 22mV When the current density is 10 mA·cm-2 and a tafel slope of 28.8mV/dec.These properties are close to those of bulk metal platinum.Pt/Ni film has also excellent oxygen evolution performance in 1M KOH solution,reaching a current density of 10 mA·cm-2,a potential of only 1.265V,and a Tafel slope of 140 mV/dec.

关 键 词：Pt/Ni 电沉积 电催化 析氢析氧性能 

分 类 号：TQ116.2[化学工程—无机化工]