globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2021.03.020
论文题名:
Decorating graphdiyne on ultrathin bismuth subcarbonate nanosheets to promote CO2 electroreduction to formate
作者: Tang S.-F.; Lu X.-L.; Zhang C.; Wei Z.-W.; Si R.; Lu T.-B.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期:15
起始页码: 1533
结束页码: 1541
语种: 英语
中文关键词: Bismuth subcarbonate ; CO2 reduction ; Formate ; Graphdiyne ; Two-dimensional electrocatalysts
英文关键词: Bismuth compounds ; Electrocatalysts ; Electrolytic reduction ; Reaction kinetics ; X ray absorption ; X ray absorption near edge structure spectroscopy ; Chemical feedstocks ; CO$-2$/ reduction ; Electro reduction ; Electrocatalytic reduction ; Formate ; Graphdiyne ; Two-dimensional electrocatalyst ; Ultra-thin ; Valuable chemicals ; ]+ catalyst ; Carbon dioxide
英文摘要: Electrocatalytic reduction of CO2 is one of the most attractive approaches for converting CO2 into valuable chemical feedstocks and fuels. This work reports a catalyst comprising graphdiyne-decorated bismuth subcarbonate (denoted as BOC@GDY) for efficient electroreduction of CO2 to formate. The BOC@GDY shows a stable current density of 200 mA cm−2 at –1.1 V in a flow cell configuration, with a faradaic efficiency of 93.5% for formate. Experimental results show that the synergistic effect in BOC@GDY is beneficial for the CO2 adsorption affinity, the reaction kinetics and the selectivity for formate. In addition, in-situ X-ray absorption and Raman spectroscopy indicate that the electron-rich GDY could facilitate the reduction from Bi(III) to Bi(0), thus leading to more active sites. We also demonstrate that the promoting effect of GDY in CO2 electroreduction can be further extended to other metal catalysts. To the best of our knowledge, such general promoting functions of GDY for CO2 electroreduction have not been documented thus far. © 2021 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170403
Appears in Collections:气候变化与战略

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作者单位: MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China; Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China

Recommended Citation:
Tang S.-F.,Lu X.-L.,Zhang C.,et al. Decorating graphdiyne on ultrathin bismuth subcarbonate nanosheets to promote CO2 electroreduction to formate[J]. Science Bulletin,2021-01-01,66(15)
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