电沉积Ru-Mo_(2)WS_(6)/Ni-Co/NF的制备及电解水制氢性能研究  

The preparation and hydrogen evolution performance study of electrodeposited Ru-Mo_(2)WS_(6)/Ni-Co/NF

作　　者：郭长艳 王东旭 张留根 郭佳 逯小平 王吉德[2] Changyan Guo;Dongxu Wang;Liugen Zhang;Jia Guo;Xiaoping Lu;Jide Wang(Xinjiang Energy Co.,LTD,Urumqi 830046,China;Chemical Engineering College,Xinjiang University,Urumqi 830046,China)

机构地区：[1]新疆能源(集团)有限责任公司,乌鲁木齐830046 [2]新疆大学化工学院,乌鲁木齐830046

出　　处：《中国科学：化学》2024年第12期2590-2598,共9页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:22169018);新疆维吾尔自治区自然科学基金(编号:2022E01025,2021D01C091)资助项目。

摘　　要：氢能由于具备高热能和清洁性,成为替代化石能源的最优选择.电解水制氢所使用的Pt基催化剂由于资源稀缺和价格昂贵,增加了大规模应用成本,因此,开发新型催化剂成为当前的迫切需要求.本研究通过电沉积技术,在前期合成所得Mo_(2)WS_(6)/Ni-Co/NF上成功负载Ru纳米颗粒,制备得到了Ru-Mo_(2)WS_(6)/Ni-Co/NF电催化材料.通过异质的构建和金属间强耦合作用,有效增加了电荷转移效率和活性位点,并提升了单个活性位点的析氢性能.在10、50和100 m A cm^(-2)的电流密度下,表现出9、58和80 mV的超低过电位,具有比拟商业Pt基催化剂的优秀性能.在稳定性测试中,长达5000次循环充放电测试和950 h恒电压测试表现出较高稳定性,为设计制备成本较低的高性能电催化剂提供了思路.Hydrogen has emerged as the optimal alternative for replacing fossil fuels due to its high thermal energy and cleanliness.However,the utilization of Pt-based catalysts in water electrolysis for hydrogen production escalates the cost of large-scale applications due to their scarcity and exorbitant price.Hence,there is an urgent imperative to develop novel catalysts.In this study,Ru nanoparticles were successfully electrodeposited onto Mo_(2)WS_(6)/Ni-Co/NF substrate,resulting in the formation of Ru-Mo_(2)WS_(6)/Ni-Co/NF electrocatalytic material.The prepared material effectively enhances the charge transfer efficiency and active sites,as well as improves the hydrogen evolution performance of individual active sites through heterogeneous construction and strong metal coupling.It demonstrates exceptional performance comparable to commercial Pt-based catalysts,achieving ultra-low overpotentials of 9,58,and 80 mV at current densities of 10,50,and 100 mA cm^(−2),respectively.Furthermore,the high stability of the electrocatalysts was demonstrated in stability tests,which included 5000 cycles of charge-discharge testing and 950 h of constant voltage testing.These results provide valuable insights for the design and preparation of low-cost,high-performance electrocatalysts.

关 键 词：RU 泡沫镍 电解水制氢 层状过渡金属硫化物 电沉积 

分 类 号：TQ116.21[化学工程—无机化工] TQ426