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题名: Very highly efficient reduction of CO2 to CH4 using metal-free N-doped carbon electrodes
作者: Sun, Xiaofu1; Kang, Xinchen1; Zhu, Qinggong1; Ma, Jun1; Yang, Guanying1; Liu, Zhimin1; Han, Buxing1
刊名: CHEMICAL SCIENCE
发表日期: 2016
卷: 7, 期:4, 页:2883-2887
收录类别: SCI
英文摘要: The electrocatalytic reduction of CO2 to energy-rich chemicals is a promising pathway for energy storage and utilization. Herein we report the first work on the electrocatalytic reduction of CO2 to CH4 using metal-free electrodes. It was found that N-doped carbon (graphene-like) material/carbon paper electrodes were very efficient for the electrochemical reaction when using ionic liquids (ILs) as the electrolytes. The faradaic efficiency of CH4 could be as high as 93.5%, which is the highest to date. The current density was about 6 times higher than that of a Cu electrode under similar conditions, which is the well-known effective electrode for the electrocatalytic reduction of CO2 to CH4. Additionally, a trace amount of water in the IL could improve the current density effectively without reducing CH4 selectivity considerably. Our results highlight a new class of low-cost and designable electrocatalysts for synthetic fuel production from CO2.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35923
Appears in Collections:胶体、界面与化学热力学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Colloid & Interface & Thermodynam, Beijing 100190, Peoples R China
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