泡沫镍负载 NiCoP@MnCo-OH 正极的制备及电化学性能

摘要：

采用水热磷化再水热的多步反应制备了泡沫镍(NF)负载的镍钴磷化物表面包覆锰钴氢氧化物的核

壳结构纳米线阵列复合材料电极(NiCoP@MnCo-OH/NF),并对其结构、形貌以及作为碱性储能器件正极的电化学

性能进行了表征.结果表明,在碱性电解液中,该电极在0.3A/g电流密度下的放电比容量高达477.6 mAh/g,在

10.0A/g高电流密度下也可达270.0mAh/g,远优于 NiCoP/NF和 MnCo-OH/NF电极.在10.0A/g下经8000次充

放电循环后,容量保持率为69.2%.优异的电化学性能归因于 NiCoP和 MnCo-OH 良好的导电性、独特的纳米线核壳

异质结构及复合物中两组分间的协同作用.

A nickelfoam(NF)-loaded core-shell-structured nanowirearray compositeelectrode(NiCoP@MnCo-OH/NF)  consisting of nickel cobalt phosphide coated with manganese cobalt hydroxide is prepared via hydrothermalphosphidation- hydrothermalprocedure, and its structure, morphology and electrochemical performance as a cathode for alkaline energy sto- rage devices are characterized. The experimentalresults show thatthe discharge specific capacity ofthe electrode is high up to 477. 6 mAh/g atthe currentdensity of0. 3 A/g and remains270. 0 mAh/g atthe high currentdensity of 10. 0 A/g, which are far superior to those ofthe NiCoP/NF and MnCo-OH/NF electrodes. After8 000 cycles at10. 0 A/g, the capacity retention rate is 69. 2%.  The excellent electrochemical performance is attributed to the good electrical conduction of the NiCoP and MnCo-OH as wellas the unique nanowire coreshellheterostructure and the synergy between the two components of the com- posite.

作者：

卫雪菲,高天歌,袁安保,徐甲强

WeiXuefei, Gao Tiange, Yuan Anbao,XuJiaQiang(et al.Preparation of nickel foam- loaded NiCoP@MnCo-OH cathode and its electrochemicalperformance[J] .JournalofHenan NormalUniversity (NaturalScience Edition) ,2024,52(4) :132-141. DOI:10. 16366/j. cnki.1000-2367. 2023. 04. 11. 0003. )    

机构地区：

上海大学理学院化学系;新能源与传感技术实验室

引用本文：

卫雪菲,高天歌,袁安保等.泡沫镍负载NiCoP@MnCo-OH正极的制备及电化学性能[J].betway官方app 学报（自然科学版）,2024,52(4):132-141.

WeiXuefei, Gao Tiange, Yuan Anbao, et al.Preparation of nickel foam- loaded NiCoP@MnCo-OH cathode and its electrochemicalperformance[J] .JournalofHenan NormalUniversity (NaturalScience Edition) ,2024,52(4) :132-141. DOI:10. 16366/j. cnki.1000-2367. 2023. 04. 11. 0003.

基金：

国家重点研发计划项目(2017YFB0102200)

关键词：

镍钴磷化物;锰钴氢氧化物;复合物正极;核壳结构;电化学性能

nickelcobaltphosphide; manganesecobalthydroxide; compositecathode; coreshellstructure; electrochemi- calperformance

分类号：

泡沫镍负载 NiCoP@MnCo-OH 正极的制备及电化学性能.pdf