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Cooperation between holey N-doped carbon and Ni nanoparticles as an efficient electrocatalyst for the hydrogen evolution reaction
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2024-09-04 , DOI: 10.1039/d4cp02186j Wenchong Zhang 1 , Heng Ke 1 , Mixue Gong 1 , Jie Yang 1 , Ningbo Yu 1 , Yanan Xue 1 , Jianzhi Wang 1 , Faquan Yu 1
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2024-09-04 , DOI: 10.1039/d4cp02186j Wenchong Zhang 1 , Heng Ke 1 , Mixue Gong 1 , Jie Yang 1 , Ningbo Yu 1 , Yanan Xue 1 , Jianzhi Wang 1 , Faquan Yu 1
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Exploring non-noble and high-performance metal catalysts to replace platinum-based catalysts for the hydrogen evolution reaction (HER) via electrochemical water splitting significantly alleviates environmental pollution and the energy crisis. However, the synthetic approaches of such electrocatalysts are generally complex and challenging for large-scale production. Herein, a facile and green solid-state synthesis of Ni nanoparticles decorated with N-doped porous carbon is presented. These materials are derived from chitosan as carbon, nitrogen sources, and nickel acetate as a nickel source with NaCl as a template. The synthesis procedure is simple to scale up without an organic solvent. Benefiting from its porous structure, splendid conductivity, and the synergistic effect of Ni nanoparticles and holey N-doped carbon, the as-prepared Ni@CN exhibits superior HER performance in 1 M KOH with a low potential of 121 mV at 10 mA cm−2. These findings indicate that the convenient and environmentally friendly synthesis approach provides a novel method for large-scale synthesis of HER electrocatalysts for industrial electrolytic water splitting applications.
中文翻译：
多孔氮掺杂碳和镍纳米颗粒之间的合作作为析氢反应的有效电催化剂
探索非贵金属和高性能金属催化剂来替代铂基催化剂，通过电化学水分解进行析氢反应（HER），可显着缓解环境污染和能源危机。然而，此类电催化剂的合成方法通常很复杂，并且对于大规模生产来说具有挑战性。在此，提出了一种简单、绿色的固态合成用氮掺杂多孔碳修饰的镍纳米粒子的方法。这些材料以壳聚糖为碳源、氮源，以醋酸镍为镍源，以氯化钠为模板衍生而来。合成过程简单，无需有机溶剂即可放大。得益于其多孔结构、优异的导电性以及Ni纳米粒子和多孔氮掺杂碳的协同效应，所制备的Ni@CN在1 M KOH中表现出优异的HER性能，在10 mA cm时电势低至121 mV - 2 .这些发现表明，方便且环保的合成方法为大规模合成用于工业电解水分解应用的HER电催化剂提供了一种新方法。
更新日期：2024-09-04
中文翻译：
多孔氮掺杂碳和镍纳米颗粒之间的合作作为析氢反应的有效电催化剂
探索非贵金属和高性能金属催化剂来替代铂基催化剂，通过电化学水分解进行析氢反应（HER），可显着缓解环境污染和能源危机。然而，此类电催化剂的合成方法通常很复杂，并且对于大规模生产来说具有挑战性。在此，提出了一种简单、绿色的固态合成用氮掺杂多孔碳修饰的镍纳米粒子的方法。这些材料以壳聚糖为碳源、氮源，以醋酸镍为镍源，以氯化钠为模板衍生而来。合成过程简单，无需有机溶剂即可放大。得益于其多孔结构、优异的导电性以及Ni纳米粒子和多孔氮掺杂碳的协同效应，所制备的Ni@CN在1 M KOH中表现出优异的HER性能，在10 mA cm时电势低至121 mV - 2 .这些发现表明，方便且环保的合成方法为大规模合成用于工业电解水分解应用的HER电催化剂提供了一种新方法。
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