文献类型：期刊文献

英文题名：Heterogeneous Fe-Doped Ni(OH)2 Grown on Nickel Mesh by Electrodeposition for Efficient Alkaline Oxygen Evolution Reaction

作者：Mao, Fangxin[1];Zhang, Junshan[1];Wang, Hai Feng[2];Liu, Peng Fei[1,3];Yang, Hua Gui[1,3]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Lab Ultrafine Mat, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Minist Educ, Engn Res Ctr Resource Utilizat Carbon Containing W, Shanghai, Peoples R China

年份：2023

卷号：29

期号：69

外文期刊名：CHEMISTRY-A EUROPEAN JOURNAL

收录：;EI(收录号：20234414988027);WOS:【SCI-EXPANDED(收录号:WOS:001092667800001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (52103340), the China Postdoctoral Science Foundation Funded Project (2020 M681201), the Fundamental Research Funds of the Central University (JKB01231715).

语种：英文

外文关键词：doping; electrodeposition; heterogeneous catalysts; oxygen evolution reaction; water electrolysis

摘要：Designing highly excellent and stable catalysts for alkaline oxygen evolution reaction (OER) is gradually pivotal for clean energy development. In this work, a heterogeneous Fe-doped Ni(OH)(2) (Ni/Fe-0.1) was developed via simple one-step electrodeposition onto nickel mesh. The heterogeneous interface structure generates sufficient active sites, significantly improving OER performance with an overpotential of 174 mV at 10 mA cm(-2) (eta(10)), while Tafel slope is only 43.0 mV dec(-1). In particular, Ni/Fe-0.1 is still able to operate stably at a current density of 1 A cm(-2) for 100 h without obvious potential decay. The oxidation of Ni2+ to Ni3+ was detected by X-ray photoelectron spectroscopy, proving that the heterogeneous catalyst could stabilize the high-valence state of nickel as active sites to its superior OER performance. This work provides a convenient synthetic strategy for forming heterogeneous catalysts toward efficient water electrolysis.