燃料化学学报2023，Vol.51Issue(2)：197-204,8.DOI:10.1016/S1872-5813(22)60052-5
纳米非晶镍硼合金的合成及其碱性电催化析氢性能研究
Nanosized amorphous nickel-boron alloy electrocatalysts for hydrogen evolution reaction under alkaline conditions
摘要
Abstract
Hydrogen production from electrolyzed water driven by sustainable energy is an effective way to achieve the hydrogen economy with zero carbon emission.Alkaline electrocatalytic hydrogen evolution reaction(HER)is one of the main energy transforming processes in the field of electrolytic water technology.The development of active and cost-effective nonprecious catalytic electrodes is of great importance to alkaline hydrogen evolution reaction.Amorphous nanosized nickel-boron alloy particles(NiB-COS)have been obtained by using chitosan oligosaccharides(COS)as a stabilizer via chemical reduction method.The as-prepared electrocatalysts have been used for the hydrogen evolution reaction(HER).The electrocatalysts have been characterized by using X-ray diffraction(XRD),transmission electron microscopy(TEM),inductively coupled plasma analysis(ICP)and X-ray photoelectron spectroscopy(XPS).NiB-COS displays a significant increase in hydrogen evolution reaction properties in alkaline media,affording low overpotentials of 49.4 mV at 10 mA/cm2 and 15.1 mV onset overpotential for the hydrogen evolution reaction.Tafel slope of NiB-COS is 86.1 mV/dec.Remarkably,the formation of a nickel-boron alloyed phase and the decrease of particle size are helpful to improve HER activity of NiB-COS.The experimental data indicated that the NiB-COS showed excellent long-term stability as a very active electrocatalyst.关键词
析氢反应/镍硼合金/过电位/Tafel斜率/碱性水电解Key words
hydrogen evolution reaction/NiB-COS/overpotential/Tafel slope/alkaline water electrolysis分类
化学化工引用本文复制引用
武美霞,陈妍,李森,杨肖萌,李经纬,尚建鹏,郭永,李作鹏..纳米非晶镍硼合金的合成及其碱性电催化析氢性能研究[J].燃料化学学报,2023,51(2):197-204,8.基金项目
The project was supported by Natural Science Foundation of Shanxi(201901D111310,201801D221057),the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi Province(2020L0478,2021L388)and Natural Science Foundation of Datong(2019160). （201901D111310,201801D221057）
