Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons
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...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2017
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| Online Access: | https://hdl.handle.net/10356/84389 http://hdl.handle.net/10220/43581 |
| _version_ | 1811693412542316544 |
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| author | Xie, Ming Shi Xia, Bao Yu Li, Yawei Yan, Ya Yang, Yanhui Sun, Qiang Chan, Siew Hwa Fisher, Adrian Wang, Xin |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Xie, Ming Shi Xia, Bao Yu Li, Yawei Yan, Ya Yang, Yanhui Sun, Qiang Chan, Siew Hwa Fisher, Adrian Wang, Xin |
| author_sort | Xie, Ming Shi |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T06:51:16Z |
| format | Journal Article |
| id | ntu-10356/84389 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:51:16Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/843892023-03-04T17:22:38Z Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons Xie, Ming Shi Xia, Bao Yu Li, Yawei Yan, Ya Yang, Yanhui Sun, Qiang Chan, Siew Hwa Fisher, Adrian Wang, Xin School of Chemical and Biomedical Engineering School of Mechanical and Aerospace Engineering Amino Acid Hydrocarbons 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. NRF (Natl Research Foundation, S’pore) Accepted version 2017-08-14T08:11:16Z 2019-12-06T15:44:10Z 2017-08-14T08:11:16Z 2019-12-06T15:44:10Z 2016 Journal Article 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. 1754-5692 https://hdl.handle.net/10356/84389 http://hdl.handle.net/10220/43581 10.1039/C5EE03694A en Energy & Environmental Science © 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: [http://dx.doi.org/10.1039/C5EE03694A]. 9 p. application/pdf |
| spellingShingle | Amino Acid Hydrocarbons Xie, Ming Shi Xia, Bao Yu Li, Yawei Yan, Ya Yang, Yanhui Sun, Qiang Chan, Siew Hwa Fisher, Adrian Wang, Xin Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| title | Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| title_full | Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| title_fullStr | Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| title_full_unstemmed | Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| title_short | Amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| title_sort | amino acid modified copper electrodes for the enhanced selective electroreduction of carbon dioxide towards hydrocarbons |
| topic | Amino Acid Hydrocarbons |
| url | https://hdl.handle.net/10356/84389 http://hdl.handle.net/10220/43581 |
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