دورية أكاديمية
Cascade electrocatalysis via AgCu single-atom alloy and Ag nanoparticles in CO2 electroreduction toward multicarbon products
| العنوان: | Cascade electrocatalysis via AgCu single-atom alloy and Ag nanoparticles in CO2 electroreduction toward multicarbon products |
|---|---|
| المؤلفون: | Cheng Du, Joel P. Mills, Asfaw G. Yohannes, Wei Wei, Lei Wang, Siyan Lu, Jian-Xiang Lian, Maoyu Wang, Tao Guo, Xiyang Wang, Hua Zhou, Cheng-Jun Sun, John Z. Wen, Brian Kendall, Martin Couillard, Hongsheng Guo, ZhongChao Tan, Samira Siahrostami, Yimin A. Wu |
| المصدر: | Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | Science |
| الوصف: | Abstract Electrocatalytic CO2 reduction into value-added multicarbon products offers a means to close the anthropogenic carbon cycle using renewable electricity. However, the unsatisfactory catalytic selectivity for multicarbon products severely hinders the practical application of this technology. In this paper, we report a cascade AgCu single-atom and nanoparticle electrocatalyst, in which Ag nanoparticles produce CO and AgCu single-atom alloys promote C-C coupling kinetics. As a result, a Faradaic efficiency (FE) of 94 ± 4% toward multicarbon products is achieved with the as-prepared AgCu single-atom and nanoparticle catalyst under ~720 mA cm−2 working current density at −0.65 V in a flow cell with alkaline electrolyte. Density functional theory calculations further demonstrate that the high multicarbon product selectivity results from cooperation between AgCu single-atom alloys and Ag nanoparticles, wherein the Ag single-atom doping of Cu nanoparticles increases the adsorption energy of *CO on Cu sites due to the asymmetric bonding of the Cu atom to the adjacent Ag atom with a compressive strain. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2041-1723 17543134 |
| Relation: | https://doaj.org/toc/2041-1723 |
| DOI: | 10.1038/s41467-023-41871-w |
| URL الوصول: | https://doaj.org/article/c5dc1754313445bd8311d4c504052466 |
| رقم الأكسشن: | edsdoj.5dc1754313445bd8311d4c504052466 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20411723 17543134 |
|---|---|
| DOI: | 10.1038/s41467-023-41871-w |