文献类型：期刊文献

英文题名：Nickel nitride-black phosphorus heterostructure nanosheets for boosting the electrocatalytic activity towards the oxygen evolution reaction

作者：Wu, Tong[1,2,3];Zhang, Shaoning[1];Bu, Kejun[1,2];Zhao, Wei[1];Bi, Qingyuan[1];Lin, Tianquan[1];Huang, Jian[1];Li, Yongsheng[3];Huang, Fuqiang[1,4]

机构：[1]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China;[2]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[3]East China Univ Sci & Technol, Lab Low Dimens Mat Chem, Key Lab Ultrafine Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[4]Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

年份：2019

卷号：7

期号：38

起止页码：22063

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20194107512709);WOS:【SCI-EXPANDED(收录号:WOS:000490235800047)】；

基金：This research was financially supported by the National Key Research and Development Program of China (Grant 2016YFB0901600), National Science Foundation of China (Grant 51672301, 21801247 and 21872166), Key Research Program of Chinese Academy of Sciences (Grants No. QYZDJ-SSW-JSC013 and KGZD-EW-T06), Innovation Project of Shanghai Institute of Ceramics (Grant No. Y73ZC6160G) and CAS Center for Excellence in Superconducting Electronics.

语种：英文

外文关键词：Nanosheets - Oxygen - Catalyst activity - Electron transitions - Phosphorus - Nitrides

摘要：The extraordinary oxygen evolution reaction (OER) in alkaline fuel cells and water-splitting systems demands a high electron transfer rate and catalysts with numerous active sites and massive hydroxyl groups. Herein, we proposed a new heterostructure of nanosheets electron depletion|interfacial reaction center|hydroxyl captor, demonstrated as nickel nitride (Ni3N)|nickel phosphide (Ni2P)|black phosphorus (BP). Compared with other catalysts reported for the OER, the Ni3N|Ni2P|BP heterostructure shows superior electrocatalytic performance with an ultralow overpotential of 247 mV at 10 mA cm(-2) and high durability in alkaline electrolytes. The high performance of the catalyst results from (i) the superior capability of the hydroxyl groups captured by ultrathin oxide layers on the catalyst surface; (ii) the stable connection between Ni3N and BP via the formation of the Ni2P interface; and (iii) the excellent electron transfer rate due to the metallic nature of Ni3N.