Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires
Abstract
We report on Cu nanowires as highly active and selective catalysts for electroreduction of CO at low overpotentials. The Cu nanowires were synthesized by reducing pregrown CuO nanowires, with the surface structures tailored by tuning the reduction conditions for improved catalytic performance. The optimized Cu nanowires achieved 65% faradaic efficiency (FE) for CO reduction and 50% FE toward production of ethanol at potentials more positive than −0.5 V (versus reversible hydrogen electrode, RHE). Structural analyses and computational simulations suggest that the CO reduction activity may be associated with the coordinately unsaturated (110) surface sites on the Cu nanowires.
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The Ag doped phase-blended catalysts exhibited a three-fold higher ethanol selectivity (FEC2H5OH 34.15%) than that of the Cu2O without Ag dopant (10.5%).
“The Ag doped phase-blended catalysts exhibited a three-fold higher ethanol selectivity (FEC2H5OH 34.15%) than that of the Cu2O without Ag dopant (10.5%).”
From Electrochemical CO <sub>2</sub> Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design (2019) · cites this paper as [112]
Lee et al. used an electrochemical co-deposition technique to create phase-blended Ag-incorporated biphasic Cu2O-Cu catalysts.
“Lee et al. used an electrochemical co-deposition technique to create phaseblended Ag-incorporated biphasic Cu2O-Cu catalysts.”
From Electrochemical CO <sub>2</sub> Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design (2019) · cites this paper as [112]
The Ag-Cu biphasic boundaries were thought to suppress HER and increase *CO mobility from Ag to Cu sites.
“The Ag-Cu biphasic boundaries were thought to suppress HER and increase *CO mobility from Ag to Cu sites.[112]”
From Electrochemical CO <sub>2</sub> Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design (2019) · cites this paper as [112]
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Self-citation
- Authors
- Raciti, D., Cao, L., Livi, K. J. T., Rottmann, P. F., Tang, X., Li, C., Hicks, Z., Bowen, K. H., Hemker, K. J., Mueller, T., & Wang, C.
- Affiliations
- Johns Hopkins University (US)
- Corresponding author
- Mueller, Tim
- Wang, Chao
- ORCID
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-06-05
- Volume
- 7
- Issue
- 7
- Pages
- 4467-4472
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2619820429
- Cited by
- 177
- References
- 38
- Citations by year
- 2026: 9 · 2025: 14 · 2024: 16 · 2023: 19 · 2022: 29 · 2021: 26 · 2020: 23 · 2019: 19 · 2018: 19 · 2017: 3
- FWCI
- 4.69
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Catalysis (publishedVersion)
- Funders
- Division of Chemistry (CHE-1437396)
- Basic Energy Sciences (DE-FG02-07ER46437)
- Air Force Office of Scientific Research (FA9550-15-1-0259)
- Johns Hopkins University
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
- Physical Sciences › Chemical Engineering › Catalysis › Catalysts for Methane Reforming
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Keywords
- copper nanowires, electrocatalysis, low overpotential, Faradaic efficiency, ethanol production
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