%0 Journal Article
%T 氮掺杂石墨烯负载氮化钴及其电催化水分解性能研究<br>Research on Cobalt Nitride Supported on Nitrogen-Doped Graphene and Its Electrocatalytic Water Splitting Performance
%A 许兆斐
%A 李紫尧
%A 高凯炫
%A 王楠
%A 李波
%J Journal of Advances in Physical Chemistry
%P 191-200
%@ 2168-6130
%D 2025
%I Hans Publishing
%R 10.12677/japc.2025.142018
%X 析氢反应和析氧反应是电化学水分解和金属&#8211;空气电池等可再生能源技术的基础反应。各种过渡金属(Co、Fe、Ni等)基催化剂由于具有良好的电催化活性而被大量探索&#65292;以作为贵金属潜在的替代品。本研究成功制备出负载于氮掺杂石墨烯(NGO)上的双功能电催化剂(Co<sub>5.47</sub>N/NGO)。在1 M KOH中&#65292;达到10 mA/cm<sup>2</sup>的电流密度&#65292;OER过电位需352 mV&#65292;HER过电位需104 mV。(Co<sub>5.47</sub>N/NGO)作为电解池的阴极和阳极时&#65292;1.79 V的电压就能达到10 mA/cm<sup>2</sup>的电流密度&#65292;并表现出优异的稳定性。该研究简化了氮化钴的合成过程&#65292;并且片状NGO减少了纳米粒子的团聚&#65292;提供了大量的活性位点&#65292;从而提高了电催化活性。<br>The hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) are fundamental reactions in renewable energy technologies such as electrochemical water splitting and metal-air batteries. A variety of transition metal (Co, Fe, Ni, etc.)&#8212;based catalysts have been extensively explored due to their good electrocatalytic activity as potential substitutes for noble metals. In this study, a bifunctional electrocatalyst (Co<sub>5</sub>.<sub>47</sub>N/NGO) supported on nitrogen-doped graphene (NGO) was successfully prepared. In 1 M KOH, to reach a current density of 10 mA/cm&#178;, the overpotential for OER is 352 mV and the overpotential for HER is 104 mV. When (Co<sub>5</sub>.<sub>47</sub>N/NGO) serves as the cathode and anode of the electrolytic cell, a voltage of 1.79 V can achieve a current density of 10 mA/cm<sup>2</sup> and exhibit excellent stability. This research simplifies the synthesis process of cobalt nitride, and the flake-shaped NGO reduces the agglomeration of nanoparticles and provides a large number of active sites, thus improving the electrocatalytic activity.
%K 钴&#65292
%K 氮掺杂石墨烯&#65292
%K 电催化&#65292
%K 氮化物<br>Cobalt
%K Nitrogen-Doped Graphene
%K Electrocatalysis
%K Nitride
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=114575