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    苏艳

    • 教授     博士生导师   硕士生导师
    • 性别:女
    • 毕业院校:大连化物所
    • 学位:博士
    • 所在单位:物理学院
    • 学科:凝聚态物理
    • 办公地点:科技园大厦C座309
    • 电子邮箱:su.yan@dlut.edu.cn

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    Selective Electrochemical Reduction of Carbon Dioxide to Ethanol on a Boron- and Nitrogen-Co-doped Nanodiamond

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    论文类型:期刊论文

    发表时间:2017-12-04

    发表刊物:ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

    收录刊物:SCIE、EI、PubMed、Scopus

    卷号:56

    期号:49

    页面范围:15607-15611

    ISSN号:1433-7851

    关键字:CO2 reduction; doped nanodiamond; electrocatalysis; ethanol; heterogeneous catalysis

    摘要:Electrochemical reduction of CO2 to ethanol, a clean and renewable liquid fuel with high heating value, is an attractive strategy for global warming mitigation and resource utilization. However, converting CO2 to ethanol remains great challenge due to the low activity, poor product selectivity and stability of electrocatalysts. Here, the B- and N-co-doped nanodiamond (BND) was reported as an efficient and stable electrode for selective reduction of CO2 to ethanol. Good ethanol selectivity was achieved on the BND with high Faradaic efficiency of 93.2% (-1.0V vs. RHE), which overcame the limitation of low selectivity for multicarbon or high heating value fuels. Its superior performance was mainly originated from the synergistic effect of B and N co-doping, high N content and overpotential for hydrogen evolution. The possible pathway for CO2 reduction revealed by DFT computation was CO2 ->*COOH ->*CO ->*COCO ->*COCH2OH ->*CH2OCH2OH -> CH3CH2OH.