常州大学学报（自然科学版）2026，Vol.38Issue(2)：10-19,10.DOI:10.3969/j.issn.2095-0411.2026.02.002
高密度CoNC位点负载碳催化剂的制备及氧还原性能
Preparation of carbon-based electrocatalysts with high density CoNC sites and performance of their oxygen reduction
摘要
Abstract
Developing high-performance electrocatalysts to improve the Oxygen Reduction Reaction(ORR)efficiency on the cathode surface is of great significance to improving the energy conversion ef-ficiency of metal-air batteries.In this work,a porphyrin-based Metal-Organic Framework(Co-TPyP MOF)was first synthesized as a precursor by using a solvothermal method,and then CoNC-P series electrocatalysts were prepared through high-temperature carbonization and phosphorus doping.SEM,TEM,XRD,BET and other technical means were used to characterize the morphology,structure and physical and chemical characteristics of these catalysts.Electrochemical performance experiments show that the ORR half-wave potential and limiting current density of the optimized CoNC-P-5 sample are as high as 0.861 V and 4.15 mA/cm2 in 0.1 mol/L KOH electrolyte,respectively,even exceeding the commercial Pt/C catalyst with mass fraction of 20%,which may mainly benefit from the high density of dispersed Co sites and developed pore structure in the catalyst,significantly shortening the mass transfer path and improving the utilization of active sites.Electron transfer number measure-ment demonstrated that the catalytic ORR has high 4e process selectivity.In addition,in the continu-ous 36 000 s test,the ORR current retention rate was as high as 93.8%,indicating excellent stability of CoNC-P-5 catalyst.article,it must not contain results which are not presented and substantiated in the main text and should not exaggerate the main conclusions.关键词
氧还原反应/金属有机框架/碳基催化剂/P掺杂/电催化Key words
oxygen reduction reaction/metal-organic framework/carbon-based catalyst/P-doping/electrocatalysis分类
化学化工引用本文复制引用
荣坚,罗雨佳,陈望一,吴婧,张雨哲,李忠玉..高密度CoNC位点负载碳催化剂的制备及氧还原性能[J].常州大学学报（自然科学版）,2026,38(2):10-19,10.基金项目
2022年常州市"龙城英才计划"-第四批市领军型创新人才引进培育资助项目(CQ20220093) （CQ20220093）
常州大学人才引进资助项目(ZMF22020030). （ZMF22020030）
