摘要
金属有机框架化合物及其衍生物具有优越的电性能,因为有望替代贵金属而受到广泛的关注。本文通过简单的方法制备Co-N-C复合材料,即在MOFs生长中引入CO2+,然后将其前驱体进行煅烧。Co-N-C复合材料表现出较大的比表面积和高活性点,在0.1KOH条件下,电化学分析Co-N-C复合材料半波电位0.71V。另外,Co-N-C材料在碱性环境表现出优良的稳定性和抗甲醇中毒。
Metal-organic frameworks(MOFs)and MOF-derived materials have recently attracted considerable interest as alternatives to noble-metal electrocatalysts.Herein,Co-N-C composite with a well-defned morphology is facilely prepared by introducing CO2+during the growth of MOF,followed by pyrolysis in this paper.The obtained Co-N-C composite with high active sites and large surface area.Electrochemical analysis shows that half-wave potential for ORR on the Co-N-C electrode was 0.71 V in 0.1 KOH alkaline medium.In addition,it also has excellent durability and methanol resistance ability in alkaline solutions.
作者
王春玲
刘肖杰
WANG Chun-ling;LIU Xiao-jie(Department of Aeronautical Manufacturing Engineering,Aeronautical Polytechnic Institute,Xi'an 710089,China;Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education),College of Chemistry and Materials Science,Northwest University,Xi'an 710069,China)
出处
《人工晶体学报》
EI
CAS
北大核心
2019年第6期1158-1162,1171,共6页
Journal of Synthetic Crystals
基金
国家科学自然基金(21301140)
新世纪优秀人才(NCET-13-0953)
陕西省教育厅科研计划项目(18JK0413)
关键词
Co-N-C
氧还原反应
金属有机框架
稳定性
Co-N-C composite
oxygen reduction reaction
metal-organic framework
durability
