刘进轩

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:大连理工大学莱斯特国际学院副院长

性别:男

毕业院校:波鸿大学

学位:博士

所在单位:化工学院

学科:应用化学. 精细化工

办公地点:大连理工大学西部校区精细化工国家重点实验室E段521

联系方式:+86-411-84986487

电子邮箱:jinxuan.liu@dlut.edu.cn

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Highly active and durable electrocatalytic water oxidation by a NiB0.45/NiOx core-shell heterostructured nanoparticulate film

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论文类型:期刊论文

发表时间:2017-08-01

发表刊物:Nano Energy

收录刊物:Scopus、EI

卷号:38

页面范围:175-184

ISSN号:22112855

摘要:On the way to energy-efficient and cost-effective hydrogen production by electrochemical or photoelectrochemical water splitting, it is of primary importance to develop highly active and durable water oxidation electrocatalysts based on earth-abundant elements. Here we report a highly active, robust, cheap, and facilely fabricated O2-evolving catalyst on a Cu foil, NiB0.45-250/Cu, which forms a NiB0.45/NiOxcore-shell heterostructured nanoparticulate film during anodic electrolysis. The performance of NiB0.45-250/Cu, to produce 10?mA?cm?2at 296?mV overpotential in 1?M KOH over 60?h, is at par with the best efficiency of earth-abundant electrocatalysts reported to date and surpasses that of IrO2-loaded copper electrode under identical conditions. Experimental evidence and theoretical calculations reveal the correlations of B/Ni atomic ratio and annealing temperature with the morphology, surface microtexture, electrochemical active surface area, and electrical conductivity of NiBxfilms. Optimal combination of these factors can evidently enhance the catalytic activity of nickel boride electrocatalysts. ? 2017 Elsevier Ltd