Modulating adsorbed hydrogen drives electrochemical CO2-to-C2 products
Chinese Academy of Sciences · Beijing National Laboratory for Molecular Sciences · +4 more institutions
Abstract
Abstract Electrocatalytic CO 2 reduction is a typical reaction involving two reactants (CO 2 and H 2 O). However, the role of H 2 O dissociation, which provides active *H species to multiple protonation steps, is usually overlooked. Herein, we construct a dual-active sites catalyst comprising atomic Cu sites and Cu nanoparticles supported on N-doped carbon matrix. Efficient electrosynthesis of multi-carbon products is achieved with Faradaic efficiency approaching 75.4% with a partial current density of 289.2 mA cm −2 at −0.6 V. Experimental and theoretical studies reveal that Cu nanoparticles facilitate the C-C coupling step through *CHO dimerization, while the atomic Cu sites boost H 2 O dissociation to form…
Citation impact
- FWCI
- 13.02
- Percentile
- 100%
- References
- 52
Authors
12- JFJiaqi FengCorresponding
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry
- LZLibing Zhang
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- SLShoujie Liu
Anhui University
- LXLiang Xu
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry
- XMXiaodong Ma
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Dissociation (chemistry)
- Catalysis
- Nanoparticle
- Faraday efficiency
- Electrosynthesis
- Electrochemistry
- Electrocatalyst
- Protonation