• 瓦力棋牌(中国)

    1. 当前位置：首页    科研成果    论文
    论文
    Amination strategy to boost the CO2 electroreduction current density of M-N/C single-atom catalysts to the industrial application level
    第一作者： Chen, ZP (Chen, Zhipeng); Zhang, XX (Zhang, Xinxin); Liu, W (Liu, Wei); Jiao, MY (Jiao, Mingyang); Mou, KW (Mou, Kaiwen); Zhang, XP (Zhang, Xiangping); Liu, LC (Liu, Licheng);
    联系作者： Chen, ZP (Chen, Zhipeng); Zhang, XX (Zhang, Xinxin); Liu, W (Liu, Wei); Jiao, MY (Jiao, Mingyang); Mou, KW (Mou, Kaiwen); Zhang, XP (Zhang, Xiangping); Liu, LC (Liu, Licheng);
    发表年度： 2021
    期： 4
    卷： 14
    页： 2349-2356
    摘要： Although the Faraday efficiency (FE) for CO production of single-atom catalysts immobilized on nitrogen-doped carbon supports (M-N/C) for the CO2 electrocatalytic reduction reaction (CO2RR) is generally over 90%, M-N/C catalysts demonstrate a poor reaction current density, which is much worse than the current density at the industrial level. Herein, we first report a generalized amination strategy to significantly increase the current density for CO production of M-N/C catalysts (M = Ni, Fe, Zn). Among them, the aminated Ni single-atom catalyst achieves a remarkable CO partial current density of 450 mA cm(-2) (a total current density over 500 mA cm(-2)) with a nearly 90% CO FE at a moderate overpotential of 0.89 V, and particularly CO FE can be maintained over 85% in a wide operating potential range from -0.5 V to -1.0 V. DFT calculations and experimental research demonstrate that the superior activity is attributed to enhanced adsorption energies of CO2* and COOH* intermediates caused by the regulation of the electronic structure of the aminated catalysts. This work provides an ingenious method for significantly increasing the current density at the industrially-relevant level of single-atom catalysts for the CO2RR.
    刊物名称： ENERGY & ENVIRONMENTAL SCIENCE
    影响因子： 33.25
    全文链接： http://pubs.rsc.org/en/content/articlelanding/2021/EE/D0EE04052E