“三明治夹心”型Ni-P@Ni-B/Ni电极的制备及高效全pH下的催化制氢性能  

Preparation of a Sandwich-like Ni-P@Ni-B/Ni Catalytic Electrode for pH-Universal Hydrogen Evolution Reaction

作　　者：王晨峰 徐秋雨 王临才[1] 张瑞琦 潘欣欣 王景伟[1] 郝伟举 WANG Chenfeng;XU Qiuyu;WANG Lincai;ZHANG Ruiqi;PAN Xinxin;WANG Jingwei;HAO Weiju(Shanghai Collaborative Innovation Centre for WEEE Recycling,Shanghai Polytechnic University,Shanghai201209,China;College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China;Department of Material Science,Fudan University,Shanghai 200433,China)

机构地区：[1]上海第二工业大学上海电子废弃物资源化协同创新中心,上海201209 [2]上海理工大学理学院,上海200093 [3]复旦大学材料科学系,上海200433

出　　处：《高等学校化学学报》2019年第10期2156-2163,共8页Chemical Journal of Chinese Universities

基　　金：上海第二工业大学重点项目(批准号:XXKZD1602);上海第二工业大学研究生项目基金(批准号:EGD19YJ0023)资助;国家自然科学基金(批准号:51201035,51276053);中国博士后科学基金(批准号:KLH2021056)~~

摘　　要：通过化学镀法制备了具有"三明治夹心"结构的Ni-P@Ni-B/Ni催化电极.该催化材料为直径1μm左右的微球.电化学性能测试结果表明,在电流密度为10 m A/cm^2时,其在0.5 mol/L PBS缓冲液(pH=7)中的过电位仅为287 m V,在此电位下连续工作24 h后,电流密度仅衰减了7.6%.同时Ni-P@Ni-B/Ni在酸性(0.5 mol/L H2SO4)和碱性(1 mol/L KOH)条件下也具有优异的析氢反应催化活性,达到相同电流密度时过电位分别为199和79 m V.该工作为全p H环境下高效电解水制氢提供了新思路.A sandwich structure Ni-P@Ni-B/Ni catalytic electrode was prepared by electroless plating.The Ni-P@Ni-B catalytic material has an amorphous spherical structure with a diameter of 1μm.When the current density of Ni-P@Ni-B/Ni is 10 m A/cm2,the overpotential is only 287 m V in 0.5 mol/L phosphate buffer saline(PBS).After operating for 24 h at a overpotential of 287 m V,the current density of Ni-P@Ni-B/Ni only attenuated by 7.6%.At the same time,the Ni-P@Ni-B/Ni electrode also has an excellent catalytic activity for hydrogen evolution reaction both in acidic and alkaline conditions,it achieves a cathodic current density of 10 m A/cm2at overpotentials of 199 and 79 m V in 0.5 mol/L H2SO4and 1 mol/L KOH,respectively.

关 键 词：电解水 化学镀 “三明治”结构 pH梯度 析氢反应 

分 类 号：O646[理学—物理化学]