Atomic Bridging of Sn Single Atom with Nitrogen and Oxygen Atoms for the Selective Electrocatalytic Reduction of CO<inf>2</inf>

Wulan, B; Cao, X; Tan, D; Shu, X; Ma, J; Hou, S; Zhang, J

Atomic Bridging of Sn Single Atom with Nitrogen and Oxygen Atoms for the Selective Electrocatalytic Reduction of CO<inf>2</inf>

Wulan, B Cao, X Tan, D Shu, X Ma, J Hou, S Zhang, J

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Publisher:: Chinese Chemical Society
Publication Type:: Journal Article
Citation:: CCS Chemistry, 2023, 5, (10), pp. 2415-2425
Issue Date:: 2023-10-01

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Field	Value	Language
dc.contributor.author	Wulan, B
dc.contributor.author	Cao, X
dc.contributor.author	Tan, D
dc.contributor.author	Shu, X
dc.contributor.author	Ma, J
dc.contributor.author	Hou, S
dc.contributor.author	Zhang, J
dc.date.accessioned	2024-04-16T22:26:30Z
dc.date.available	2024-04-16T22:26:30Z
dc.date.issued	2023-10-01
dc.identifier.citation	CCS Chemistry, 2023, 5, (10), pp. 2415-2425
dc.identifier.issn	2096-5745
dc.identifier.uri	http://hdl.handle.net/10453/177986
dc.description.abstract	The atomic coordination structure of single atom catalysts is crucial in modulating the electrocatalytic reduction of CO2 into desirable products. However, there remains limited insight into their roles and catalytic mechanisms. In comparison with commonly proposed metal-N4 moieties, herein the atomic bridging structure of nitrogen-tin-oxygen confined in porous carbon fibers is first presented for the selective reduction of CO2. With the detailed identification of such a unique structure, the in situ experimental results and theoretical calculations demonstrate that the bridging structure with reactive oxygen species enables the favorable surface electronic status to form adsorbed intermediate, *COOH for selective CO generation. Typically, the electrocatalyst displays high Faradaic efficiency in reducing CO2 into CO, but formate is produced on traditional Sn-based catalysts. Additionally, the solar-driven CO2-H2O system displays a desirable solar-to-CO conversion efficiency of 12.9%. This work provides fundamental guidance for the rational regulation of the atomic coordination structure to improve the production selectivity.
dc.language	en
dc.publisher	Chinese Chemical Society
dc.relation.ispartof	CCS Chemistry
dc.relation.isbasedon	10.31635/ccschem.022.202202464
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Atomic Bridging of Sn Single Atom with Nitrogen and Oxygen Atoms for the Selective Electrocatalytic Reduction of CO<inf>2</inf>
dc.type	Journal Article
utslib.citation.volume	5
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access	*
dc.date.updated	2024-04-16T22:26:28Z
pubs.issue	10
pubs.publication-status	Published
pubs.volume	5
utslib.citation.issue	10

Abstract:

The atomic coordination structure of single atom catalysts is crucial in modulating the electrocatalytic reduction of CO2 into desirable products. However, there remains limited insight into their roles and catalytic mechanisms. In comparison with commonly proposed metal-N4 moieties, herein the atomic bridging structure of nitrogen-tin-oxygen confined in porous carbon fibers is first presented for the selective reduction of CO2. With the detailed identification of such a unique structure, the in situ experimental results and theoretical calculations demonstrate that the bridging structure with reactive oxygen species enables the favorable surface electronic status to form adsorbed intermediate, *COOH for selective CO generation. Typically, the electrocatalyst displays high Faradaic efficiency in reducing CO2 into CO, but formate is produced on traditional Sn-based catalysts. Additionally, the solar-driven CO2-H2O system displays a desirable solar-to-CO conversion efficiency of 12.9%. This work provides fundamental guidance for the rational regulation of the atomic coordination structure to improve the production selectivity.

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http://hdl.handle.net/10453/177986