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Title: Copper-Tin Alloys for the Electrocatalytic Reduction of CO2 in an Imidazolium-Based Non-Aqueous Electrolyte

Abstract

The ability to synthesize value-added chemicals directly from CO 2 will be an important technological advancement for future generations. Using solar energy to drive thermodynamically uphill electrochemical reactions allows for near carbon-neutral processes that can convert CO 2 into energy-rich carbon-based fuels. Here, we report on the use of inexpensive CuSn alloys to convert CO 2 into CO in an acetonitrile/imidazolium-based electrolyte. Synergistic interactions between the CuSn catalyst and the imidazolium cation enables the electrocatalytic conversion of CO 2 into CO at –1.65 V versus the standard calomel electrode (SCE). This catalyst system is characterized by overpotentials for CO 2 reduction that are similar to more expensive Au- and Ag-based catalysts, and also shows that the efficacy of the CO 2 reduction reaction can be tuned by varying the CuSn ratio.

Authors:
; ; ; ; ORCiD logo
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1557381
Alternate Identifier(s):
OSTI ID: 1557541
Grant/Contract Number:  
Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; AC05-00OR22725
Resource Type:
Journal Article: Published Article
Journal Name:
Energies (Basel)
Additional Journal Information:
Journal Name: Energies (Basel) Journal Volume: 12 Journal Issue: 16; Journal ID: ISSN 1996-1073
Publisher:
MDPI AG
Country of Publication:
Switzerland
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; electrocatalysis; electrodeposition; CO2 electroreduction; non-aqueous electrolytes

Citation Formats

Sacci, Robert, Velardo, Stephanie, Xiong, Lu, Lutterman, Daniel, and Rosenthal, Joel. Copper-Tin Alloys for the Electrocatalytic Reduction of CO2 in an Imidazolium-Based Non-Aqueous Electrolyte. Switzerland: N. p., 2019. Web. doi:10.3390/en12163132.
Sacci, Robert, Velardo, Stephanie, Xiong, Lu, Lutterman, Daniel, & Rosenthal, Joel. Copper-Tin Alloys for the Electrocatalytic Reduction of CO2 in an Imidazolium-Based Non-Aqueous Electrolyte. Switzerland. https://doi.org/10.3390/en12163132
Sacci, Robert, Velardo, Stephanie, Xiong, Lu, Lutterman, Daniel, and Rosenthal, Joel. Thu . "Copper-Tin Alloys for the Electrocatalytic Reduction of CO2 in an Imidazolium-Based Non-Aqueous Electrolyte". Switzerland. https://doi.org/10.3390/en12163132.
@article{osti_1557381,
title = {Copper-Tin Alloys for the Electrocatalytic Reduction of CO2 in an Imidazolium-Based Non-Aqueous Electrolyte},
author = {Sacci, Robert and Velardo, Stephanie and Xiong, Lu and Lutterman, Daniel and Rosenthal, Joel},
abstractNote = {The ability to synthesize value-added chemicals directly from CO2 will be an important technological advancement for future generations. Using solar energy to drive thermodynamically uphill electrochemical reactions allows for near carbon-neutral processes that can convert CO2 into energy-rich carbon-based fuels. Here, we report on the use of inexpensive CuSn alloys to convert CO2 into CO in an acetonitrile/imidazolium-based electrolyte. Synergistic interactions between the CuSn catalyst and the imidazolium cation enables the electrocatalytic conversion of CO2 into CO at –1.65 V versus the standard calomel electrode (SCE). This catalyst system is characterized by overpotentials for CO2 reduction that are similar to more expensive Au- and Ag-based catalysts, and also shows that the efficacy of the CO2 reduction reaction can be tuned by varying the CuSn ratio.},
doi = {10.3390/en12163132},
url = {https://www.osti.gov/biblio/1557381}, journal = {Energies (Basel)},
issn = {1996-1073},
number = 16,
volume = 12,
place = {Switzerland},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.3390/en12163132

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