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. 1 KOH条件下,电化学分析Co-N-C复合材料半波电位0. 71 V。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.
引文
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