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Title: Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons
Authors: Xie, Ming Shi
Xia, Bao Yu
Li, Yawei
Yan, Ya
Yang, Yanhui
Sun, Qiang
Chan, Siew Hwa
Fisher, Adrian
Wang, Xin
Keywords: Amino Acid
Issue Date: 2016
Source: Xie, M. S., Xia, B. Y., Li, Y., Yan, Y., Yang, Y., Sun, Q., et al. (2016). Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons. Energy & Environmental Science, 9(5), 1687-1695.
Series/Report no.: Energy & Environmental Science
Abstract: Electroreduction of carbon dioxide to hydrocarbons has been proposed as a promising way to utilize CO2 and maintain carbon balance in the environment. Copper (Cu) is an effective electrocatalyst for such a purpose. However, the overall selectivity towards hydrocarbons on Cu-based electrodes is still very limited. In this work, we develop a general amino acid modification approach on Cu electrodes for the selective electroreduction of CO2 towards hydrocarbons. A remarkable enhancement in hydrocarbon generation is achieved on these modified copper electrodes, regardless of the morphology of the Cu electrodes. A density functional theory calculation reveals that the key intermediate CHO* is stabilized by interacting with –NH3+ of the adsorbed zwitterionic glycine. Our results suggest that amino acids and their derivatives are promising modifiers in improving the selectivity of hydrocarbons in CO2 electroreduction.
ISSN: 1754-5692
DOI: 10.1039/C5EE03694A
Schools: School of Chemical and Biomedical Engineering 
School of Mechanical and Aerospace Engineering 
Rights: © 2016 The Author(s) (Royal Society of Chemistry). This is the author created version of a work that has been peer reviewed and accepted for publication by Energy & Environmental Science, The Author(s) (Royal Society of Chemistry). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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