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Direct OC-CHO coupling towards highly C2+ products selective electroreduction over stable Cu0/Cu2+ interface.
- Source :
- Nature Communications; 11/24/2023, Vol. 14 Issue 1, p1-11, 11p
- Publication Year :
- 2023
-
Abstract
- Electroreduction of CO<subscript>2</subscript> to valuable multicarbon (C<subscript>2+</subscript>) products is a highly attractive way to utilize and divert emitted CO<subscript>2</subscript>. However, a major fraction of C<subscript>2+</subscript> selectivity is confined to less than 90% by the difficulty of coupling C-C bonds efficiently. Herein, we identify the stable Cu<superscript>0</superscript>/Cu<superscript>2+</superscript> interfaces derived from copper phosphate-based (CuPO) electrocatalysts, which can facilitate C<subscript>2+</subscript> production with a low-energy pathway of OC-CHO coupling verified by in situ spectra studies and theoretical calculations. The CuPO precatalyst shows a high Faradaic efficiency (FE) of 69.7% towards C<subscript>2</subscript>H<subscript>4</subscript> in an H-cell, and exhibits a significant FE<subscript>C2+</subscript> of 90.9% under industrially relevant current density (j = −350 mA cm<superscript>−2</superscript>) in a flow cell configuration. The stable Cu<superscript>0</superscript>/Cu<superscript>2+</superscript> interface breaks new ground for the structural design of electrocatalysts and the construction of synergistic active sites to improve the activity and selectivity of valuable C<subscript>2+</subscript> products. The electrosynthesis of multicarbon products from CO<subscript>2</subscript> is a highly attractive way to utilize emitted CO<subscript>2</subscript>. Here, the authors report in situ formed Cu<superscript>0</superscript>/Cu<superscript>2+</superscript> interfaces from copper phosphate-based electrocatalysts for promoting selectivity toward multicarbon products through OC-CHO coupling. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 14
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Nature Communications
- Publication Type :
- Academic Journal
- Accession number :
- 173805754
- Full Text :
- https://doi.org/10.1038/s41467-023-43182-6