个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:化工学院
学科:功能材料化学与化工. 无机化学. 化学工艺
办公地点:大连理工大学西部校区化工综合楼
联系方式:0411-84986470
电子邮箱:tianpeng@dlut.edu.cn
Tungsten Doped Iron-Nickel Layered Hydroxide for Oxygen Evolution and Hydrogen Evolution Reaction
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论文类型:期刊论文
发表时间:2021-02-07
发表刊物:CHINESE JOURNAL OF INORGANIC CHEMISTRY
卷号:36
期号:8
页面范围:1492-1498
ISSN号:1001-4861
关键字:tungsten doping; layered double hydroxide; electrocatalysis; oxygen evolution reaction (OER); hydrogen evolution reaction (HER)
摘要:We utilize a simple one-step hydrothermal synthesis method to introduce trace amount of W6+ into Fe0.02Ni (OH)(2) LDH, which grow on nickel foam in situ. The morphology, composition and structure of W0.03Fe0.2Ni(OH)(2) LDH were characterized by means of field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectra, and so on. W0.03Fe0.2Ni(OH)(2) LDH exhibited better electrochemical performance than others due to W6+ introduction. Electrochemical tests show that the lowest overpotentials for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) at the 25 mA.cm(-2) were only 271 and 208 mV, respectively. The corresponding Tafel slopes were 61 and 181 mV.dec(-1). In addition, there were no obvious decrease of electrocatalytic activity after more than 20-hours of chronopotentiometric test.