张旭鹏, 王莹, 刘群, 张钰, 陈黎, 展俊岭, 王嘉博. 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[J]. 燃料化学学报（中英文）, 2024, 52(8): 1173-1183. DOI: 10.1016/S1872-5813(24)60446-9
引用本文: 张旭鹏, 王莹, 刘群, 张钰, 陈黎, 展俊岭, 王嘉博. 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[J]. 燃料化学学报（中英文）, 2024, 52(8): 1173-1183. DOI: 10.1016/S1872-5813(24)60446-9
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ZHANG Xupeng, WANG Ying, LIU Qun, ZHANG Yu, CHEN Li, ZHAN Junling, WANG Jiabo. Refined Ni, Co-induced synthesis of NiCoP nanoparticles uniformly embedded in NCNTs: A robust dual-functional electrocatalyst for water splitting[J]. Journal of Fuel Chemistry and Technology, 2024, 52(8): 1173-1183. DOI: 10.1016/S1872-5813(24)60446-9
Citation: ZHANG Xupeng, WANG Ying, LIU Qun, ZHANG Yu, CHEN Li, ZHAN Junling, WANG Jiabo. Refined Ni, Co-induced synthesis of NiCoP nanoparticles uniformly embedded in NCNTs: A robust dual-functional electrocatalyst for water splitting[J]. Journal of Fuel Chemistry and Technology, 2024, 52(8): 1173-1183. DOI: 10.1016/S1872-5813(24)60446-9
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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

Refined Ni, Co-induced synthesis of NiCoP nanoparticles uniformly embedded in NCNTs: A robust dual-functional electrocatalyst for water splitting

    摘要
  • 摘要: 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 H2SO4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48 h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。

     

    Abstract: 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.

     

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