Polyethylenimine-Enhanced Electrocatalytic Reduction of CO2 to Formate at Nitrogen-Doped Carbon Nanomaterials
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Open Access
- 20 May 2014
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 136 (22), 7845-7848
- https://doi.org/10.1021/ja5031529
Abstract
Nitrogen-doped carbon nanotubes are selective and robust electrocatalysts for CO2 reduction to formate in aqueous media without the use of a metal catalyst. Polyethylenimine (PEI) functions as a co-catalyst by significantly reducing catalytic overpotential and increasing current density and efficiency. The co-catalysis appears to help in stabilizing the singly reduced intermediate CO2•– and concentrating CO2 in the PEI overlayer.Keywords
Funding Information
- National Science Foundation (DMR-1106173)
- Office of Basic Energy Sciences (DE-SC0001011)
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