Efficient and stable electroreduction of CO 2 to CH 4 on CuS nanosheet arrays

Converting CO 2 into value-added hydrocarbon fuels has attracted enormous interest due to the advantage of simultaneously addressing major energy and environmental issues. Here we report on copper sulfide nanosheet arrays supported on nickel foam (CuS@NF) applied as a robust catalyst for CO 2 electr...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2017, Vol.5 (38), p.20239-20243
Main Authors: Zhao, Zhe, Peng, Xianyun, Liu, Xijun, Sun, Xiaoming, Shi, Jing, Han, Lili, Li, Guoliang, Luo, Jun
Format: Article
Language:English
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Summary:Converting CO 2 into value-added hydrocarbon fuels has attracted enormous interest due to the advantage of simultaneously addressing major energy and environmental issues. Here we report on copper sulfide nanosheet arrays supported on nickel foam (CuS@NF) applied as a robust catalyst for CO 2 electroreduction. A high faradaic efficiency of 73 ± 5% and a low Tafel slope of 57 mV dec −1 for CH 4 formation were achieved. Moreover, the CuS nanosheets showed a stable CO 2 electroreduction capability up to 60 h. The high performance of CuS@NF for CO 2 electroreduction was ascribed to the nanosheet morphology as well as the presence of S species. This work illustrates how to design efficient and stable copper chalcogenide electrocatalysts for generating carbon-based fuels.
ISSN:2050-7488
2050-7496
DOI:10.1039/C7TA05507B