用于高效的氧还原反应MoF衍生的Co-N-C复合材料  

MOF-Derived Co-N-C Composite for Highly Efficient Oxygen Reduction Reaction

作　　者：王春玲[1] 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)

机构地区：[1]西安航空职业技术学院航空制造工程学院,西安710089 [2]西北大学化学与材料科学学院,合成与天然功能分子化学教育部重点实验室,西安710069

出　　处：《人工晶体学报》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)

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.

关 键 词：Co-N-C 氧还原反应 金属有机框架 稳定性 

分 类 号：O643.36[理学—物理化学]