分级FeCoNi磷化物的计量设计及其高效析氧性能

作     者：陈江波 应杰 肖宇轩 董缘 Kenneth I.Ozoemena Silvia Lenaerts 阳晓宇 Jiangbo Chen;Jie Ying;Yuxuan Xiao;Yuan Dong;Kenneth IOzoemena;Silvia Lenaerts;Xiaoyu Yang

作者机构：State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingSchool of Materials Science and Engineering&Shenzhen Research Institute&Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology(Qingdao)Wuhan University of TechnologyWuhan 430070China School of Chemical Engineering and TechnologySun Yat-sen UniversityZhuhai 519082China Molecular Sciences InstituteSchool of ChemistryUniversity of the WitwatersrandPrivate Bag 3Johannesburg 2050South Africa Research Group Sustainable EnergyAir and Water TechnologyDepartment of Bioscience EngineeringUniversity of AntwerpAntwerp 2020Belgium School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusetts 02138USA 

基　　金：financially supported by the National Natural Science Foundation of China (51861135313) Sino-German Center COVID-19 Related Bilateral Collaborative project (C-0046) FRFCU(2021qntd13) the National 111 project (B20002) Guangdong Basic and Applied Basic Research Foundation (2019A1515110436, 2021A1515111131 2022A1515011905) Guangdong Province International Scientific and Technological Cooperation Projects (2020A0505100036) Guangzhou Science and Technology Project (202102020463) Shenzhen Science and Technology Program (JCYJ20210324142010029) DSI/NRF/WITS South African Research Chair Initiative (SARChI) Chair (132739) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2022年第65卷第10期

页      码：2685-2693页

摘      要：过渡金属磷化物是电催化设计中的新兴材料,而多元金属磷化物因其能显著提高电催化活性而备受关注.然而,由于不同种类金属前驱物之间水解和缩合速率的差异,当前有关超过两种金属元素和化学计量比精确控制的多元金属磷化物的报道非常少.因此,合理设计多元金属磷化物的组成对提高其催化性能具有重要意义.本工作通过直接磷化二价过渡金属离子氢氧化物的合成策略,制备了能够精确控制化学计量比(x:y:z=(1–10):(1–10):1)的分级结构Co_(x)Ni_(y)Fe_(z)P,其中具有最优组分的Co_(1.3)Ni_(0.5)Fe_(0.2)P在析氧反应(OER)中展示了优异的催化活性和高稳定性.密度泛函理论计算表明,相对于其他组分的过渡金属磷化物,Co_(1.3)Ni_(0.5)Fe_(0.2)P在费米能级附近的态密度明显增加,这可以增强催化剂对OH−的吸附,从而提升OER性能.

主 题 词：化学计量比 密度泛函理论计算 金属磷化物 析氧反应 分级结构 费米能级 磷化 新兴材料 

学科分类：081705[081705] 08[工学] 0817[工学-轻工类] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1007/s40843-022-2061-x

馆 藏 号：203111823...