应用化学2026，Vol.43Issue(2)：226-234,中插19-中插21,12.DOI:10.19894/j.issn.1000-0518.250165
用于高效的氧还原反应的钴原子锚定氮-掺杂多孔碳电催化剂的制备与表征
Preparation and Characterization of the Electrocatalysts of Cobalt Atom Anchored on Nitrogen-Doped Porous Carbon for Efficient Oxygen Reduction Reaction
摘要
Abstract
Due to the high cost,scarcity and low stability limiting the widespread application of the precious metal group(PMG)electrocatalysts toward oxygen reduction reaction(ORR),it is of vital importance to develop outstanding non-precious transition metal alternatives.Herein,a highly stable and efficient cobalt-based catalyst,Co-N-C,was synthesized via the pyrolysis of a precursor of Co(acac)2@ZIF-8,originating from Co(acac)2 and zeolitic imidazolate frameworks(ZIF-8).The as-synthesized Co-N-C not only possesses well-defined dodecahedral shape with large surface area and pore volume but also shows the excellent electrocatalytic activity towards ORR.The Eonset and E1/2 in 0.1 mol/L KOH solution are 1.028 and 0.844 V(vs.RHE),respectively.When injecting 5 mL of 1.0 mol/L methanol into the solution,there was almost no change in E1/2.After 5000 cycles,E1/2 has a slight decrease of about 15 mV.关键词
氧还原反应/钴原子/氮-掺杂/多孔碳Key words
Oxygen reduction reaction/Cobalt atom/Nitrogen-doped/Porous carbon分类
化学化工引用本文复制引用
柴瑞涛,张国..用于高效的氧还原反应的钴原子锚定氮-掺杂多孔碳电催化剂的制备与表征[J].应用化学,2026,43(2):226-234,中插19-中插21,12.基金项目
国家自然科学基金(No.21205092)和西安建筑科技大学自然科学基金(Nos.X20220084,ZR18039,RC1306)资助 Supported by the National Natural Science Foundation of China(No.21205092)and the Natural Science Foundation of Xi'an University of Architecture and Technology(Nos.X20220084,ZR18039,RC1306) （No.21205092）
