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A Review of the Use of Immobilized Ionic Liquids in the Electrochemical Conversion of CO2

Journal Article · · C
DOI:https://doi.org/10.3390/c6020033· OSTI ID:2378059

This paper is a review on the application of imidazolium-based ionic liquids tethered to polymer backbones in the electrochemical conversion of CO2 to carbon monoxide and formic acid. These tethered ionic liquids have been incorporated into novel anion ion exchange membranes for CO2 electrolysis, as well as for ionomers that have been incorporated into the cathode catalyst layer, providing a co-catalyst for the reduction reaction. In using these tethered ionic liquids in the cathode catalyst composition, the cell operating current increased by a factor of two or more. The Faradaic efficiencies also increased by 20–30%. This paper provides a review of the literature, in addition to providing some new experimental results from Dioxide Materials, in the electrochemical conversion of CO2 to CO and formic acid.

Research Organization:
Dioxide Materials Inc., Boca Raton, FL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B); USDOE Office of Fossil Energy (FE), Clean Coal and Carbon (FE-20)
Grant/Contract Number:
FE0031706; SC0018540
OSTI ID:
2378059
Alternate ID(s):
OSTI ID: 1635342
OSTI ID: 1642215
Journal Information:
C, Journal Name: C Journal Issue: 2 Vol. 6; ISSN 2311-5629; ISSN CABCC3
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Switzerland
Language:
English

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