Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability
Abstract The mechanism of how interfacial wettability impacts the CO2 electroreduction pathways to ethylene and ethanol remains unclear. This paper describes the design and realization of controllable equilibrium of kinetic-controlled *CO and *H via modifying alkanethiols with different alkyl chain...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-06-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-39351-2 |
| _version_ | 1797801393090723840 |
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| author | Yan Lin Tuo Wang Lili Zhang Gong Zhang Lulu Li Qingfeng Chang Zifan Pang Hui Gao Kai Huang Peng Zhang Zhi-Jian Zhao Chunlei Pei Jinlong Gong |
| author_facet | Yan Lin Tuo Wang Lili Zhang Gong Zhang Lulu Li Qingfeng Chang Zifan Pang Hui Gao Kai Huang Peng Zhang Zhi-Jian Zhao Chunlei Pei Jinlong Gong |
| author_sort | Yan Lin |
| collection | DOAJ |
| description | Abstract The mechanism of how interfacial wettability impacts the CO2 electroreduction pathways to ethylene and ethanol remains unclear. This paper describes the design and realization of controllable equilibrium of kinetic-controlled *CO and *H via modifying alkanethiols with different alkyl chain lengths to reveal its contribution to ethylene and ethanol pathways. Characterization and simulation reveal that the mass transport of CO2 and H2O is related with interfacial wettability, which may result in the variation of kinetic-controlled *CO and *H ratio, which affects ethylene and ethanol pathways. Through modulating the hydrophilic interface to superhydrophobic interface, the reaction limitation shifts from insufficient supply of kinetic-controlled *CO to that of *H. The ethanol to ethylene ratio can be continuously tailored in a wide range from 0.9 to 1.92, with remarkable Faradaic efficiencies toward ethanol and multi-carbon (C2+) products up to 53.7% and 86.1%, respectively. A C2+ Faradaic efficiency of 80.3% can be achieved with a high C2+ partial current density of 321 mA cm−2, which is among the highest selectivity at such current densities. |
| first_indexed | 2024-03-13T04:49:47Z |
| format | Article |
| id | doaj.art-b70a537141044cf69fe2b0d67857fdb4 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-13T04:49:47Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-b70a537141044cf69fe2b0d67857fdb42023-06-18T11:18:42ZengNature PortfolioNature Communications2041-17232023-06-0114111210.1038/s41467-023-39351-2Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettabilityYan Lin0Tuo Wang1Lili Zhang2Gong Zhang3Lulu Li4Qingfeng Chang5Zifan Pang6Hui Gao7Kai Huang8Peng Zhang9Zhi-Jian Zhao10Chunlei Pei11Jinlong Gong12School of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversitySchool of Chemical Engineering & Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin UniversityAbstract The mechanism of how interfacial wettability impacts the CO2 electroreduction pathways to ethylene and ethanol remains unclear. This paper describes the design and realization of controllable equilibrium of kinetic-controlled *CO and *H via modifying alkanethiols with different alkyl chain lengths to reveal its contribution to ethylene and ethanol pathways. Characterization and simulation reveal that the mass transport of CO2 and H2O is related with interfacial wettability, which may result in the variation of kinetic-controlled *CO and *H ratio, which affects ethylene and ethanol pathways. Through modulating the hydrophilic interface to superhydrophobic interface, the reaction limitation shifts from insufficient supply of kinetic-controlled *CO to that of *H. The ethanol to ethylene ratio can be continuously tailored in a wide range from 0.9 to 1.92, with remarkable Faradaic efficiencies toward ethanol and multi-carbon (C2+) products up to 53.7% and 86.1%, respectively. A C2+ Faradaic efficiency of 80.3% can be achieved with a high C2+ partial current density of 321 mA cm−2, which is among the highest selectivity at such current densities.https://doi.org/10.1038/s41467-023-39351-2 |
| spellingShingle | Yan Lin Tuo Wang Lili Zhang Gong Zhang Lulu Li Qingfeng Chang Zifan Pang Hui Gao Kai Huang Peng Zhang Zhi-Jian Zhao Chunlei Pei Jinlong Gong Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability Nature Communications |
| title | Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability |
| title_full | Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability |
| title_fullStr | Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability |
| title_full_unstemmed | Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability |
| title_short | Tunable CO2 electroreduction to ethanol and ethylene with controllable interfacial wettability |
| title_sort | tunable co2 electroreduction to ethanol and ethylene with controllable interfacial wettability |
| url | https://doi.org/10.1038/s41467-023-39351-2 |
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