Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 26, Pages 14329-14333Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202102657
Keywords
adsorbed iodine; CO2 electroreduction; Cu-CuI composite catalysts; multicarbon products
Categories
Funding
- National Key R&D Program of China [2016YFB0600901]
- National Natural Science Foundation of China [22002155, 22002158, 92045302]
- Dalian National Laboratory for Clean Energy [DNL180404, DNL201924]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB17020200]
- CAS Youth Innovation Promotion [Y201938]
- China Postdoctoral Science Foundation [2019M661142]
- Dalian Institute of Chemical Physics [DICP DMTO201702]
Ask authors/readers for more resources
The study successfully designed a Cu-CuI composite catalyst that achieves high-efficiency production of C2+ products.
Electrochemical CO2 reduction reaction (CO2RR) to multicarbon hydrocarbon and oxygenate (C2+) products with high energy density and wide availability is of great importance, as it provides a promising way to achieve the renewable energy storage and close the carbon cycle. Herein we design a Cu-CuI composite catalyst with abundant Cu-0/Cu+ interfaces by physically mixing Cu nanoparticles and CuI powders. The composite catalyst achieves a remarkable C2+ partial current density of 591 mA cm(-2) at -1.0 V vs. reversible hydrogen electrode in a flow cell, substantially higher than Cu (329 mA cm(-2)) and CuI (96 mA cm(-2)) counterparts. Induced by alkaline electrolyte and applied potential, the Cu-CuI composite catalyst undergoes significant reconstruction under CO2RR conditions. The high-rate C2+ production over Cu-CuI is ascribed to the presence of residual Cu+ and adsorbed iodine species which improve CO adsorption and facilitate C-C coupling.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available