Ni,Co诱导合成嵌有高分散NiCoP纳米粒子的NCNTs:一种高效的双功能电解水催化剂OA北大核心CSTPCD
Refined Ni,Co-induced synthesis of NiCoP nanoparticles uniformly embedded in NCNTs:A robust dual-functional electrocatalyst for water splitting
通过一步磷化碳化直接合成了Ni、Co诱导的高度分散的NiCoP纳米颗粒嵌入氮掺杂碳纳米管(NiCo/NiCoP-NCNTs).NiCo/NiCoP-NCNTs作为水分解的双功能电催化剂,在 0.5 mol/L H2 SO4 和 1 mol/L KOH溶液中分别仅需 206 mV的HER过电位和 360 mV的OER过电位.NiCo/NiCoP-NCNTs在 10 mA/cm2 的电流密度下表现出稳定的 1.68 V电池电压,在 48h仅有 10%的电流密度下降,表现出卓越的稳定性.催化活性的增强归因于NiCoP纳米颗粒的整合以及NCNTs和NiCo合金之间的协同作用.此外,改善的电催化活性与增加的电化学活性比表面积和降低的电子传递电阻有关.总体而言,NiCo/NiCoP-NCNTs在高效水电解应用中展现出显著的性能.
Ni,Co-induced highly distributed NiCoP nanoparticles embedded nitrogen-doped carbon nanotubes(NCNTs)(NiCo/NiCoP-NCNTs)were directly synthesized by a one-step phosphorization and carbonization process.As a bifunctional electrocatalyst for water splitting,NiCo/NiCoP NCNTs show impressive catalytic performance with an overpotential of only 206 mV for the hydrogen evolution reaction and 360 mV for the oxygen evolution reaction in 0.5 mol/L H2SO4 and 1 mol/L KOH solutions,respectively.In addition,NiCo/NiCoP NCNTs maintain a stable cell voltage of 1.68 V at 10 mA/cm2 with only a 10%decrease in current density over 48 h,showing remarkable stability.The improved catalytic activity can be attributed to the integration of NiCoP nanoparticles and the synergies between NCNTs and NiCo alloy.Additionally,the improved electrocatalytic performance can be attributed to the increased electrochemically active surface area and the reduced electron transfer resistance of the NiCo/NiCoP-NCNTs.Overall,the NiCo/NiCoP-NCNTs demonstrated significant performance for advanced water electrolysis applications.
张旭鹏;王莹;刘群;张钰;陈黎;展俊岭;王嘉博
吉林化工学院石油化工学院,吉林吉林 132022安徽大学物质科学与信息技术研究院,安徽合肥 230601吉林大学化学学院吉林省表面与界面化学重点实验室,吉林长春 130012吉林化工学院石油化工学院,吉林吉林 132022||吉林化工学院石油化工学院化工分离技术吉林省高等学校工程研究中心,吉林吉林 132022
化学
碳纳米管磷化镍钴双功能催化剂电催化分解水
carbon nanotubesnickel-cobalt phosphidebifunctional catalystelectrocatalytic water splitting
《燃料化学学报（中英文）》 2024 (008)
1173-1183,中插1-中插8 / 19
The project was supported by Scientific and Technological Research Planning Project of the 13th Five Year Plan of Jilin Provincial Department of Education(JJKH20200237KJ,JJKH20210233KJ),the Fund of Jilin Institute of Chemical Technology(2020 No.22,2021 No.20,2021 No.48),Jilin Scientific and Technological Development Program,the Central Guide Local Scientific and Technological Development Fund,Jilin Province Natural Science Fund(YDZJ202201ZYTS405).
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