CO2 electrolysis to multi-carbon products in strong acid at ampere-current levels on La-Cu spheres with channels
Chinese Academy of Sciences · China University of Petroleum, Beijing · +4 more institutions
Abstract
Abstract Achieving satisfactory multi-carbon (C 2+ ) products selectivity and current density under acidic condition is a key issue for practical application of electrochemical CO 2 reduction reaction (CO 2 RR), but is challenging. Herein, we demonstrate that combining microenvironment modulation by porous channel structure and intrinsic catalytic activity enhancement via doping effect could promote efficient CO 2 RR toward C 2+ products in acidic electrolyte (pH ≤ 1). The La-doped Cu hollow sphere with channels exhibits a C 2+ products Faradaic efficiency (FE) of 86.2% with a partial current density of −775.8 mA cm −2 . CO 2 single-pass conversion efficiency for C 2+ products can reach 52.8% at −900 mA cm −2…
Citation impact
- FWCI
- 13.81
- Percentile
- 100%
- References
- 55
Authors
11- JFJiaqi FengCorresponding
Chinese Academy of Sciences, China University of Petroleum, Beijing, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry
- LWLimin Wu
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- XSXinning Song
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- LZLibing Zhang
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- SJShunhan Jia
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Faraday efficiency
- Electrolyte
- Current density
- Catalysis
- Electrolysis
- Electrochemistry
- Selectivity
- Carbon fibers
Funding
- NNNational Natural Science Foundation of ChinaAwards: 22002172, 22121002, 22293015, 22203099
- CAChinese Academy of SciencesAward: XDA0390400
- NSNatural Science Foundation of Beijing MunicipalityAward: J210020
- SFScience Foundation of China University of Petroleum, BeijingAward: 2462023BJRC040
- NKNational Key Research and Development Program of ChinaAward: 2020YFA0710203