Cited by 3,160CO2 Reduction Techniques and CatalystsCatalysts for Methane ReformingElectrocatalysts for Energy Conversion

New insights into the electrochemical reduction of carbon dioxide on metallic copper surfaces

Kuhl, Kendra P., Cave, Etosha R., Abram, David N., Jaramillo, Thomas F.·2012·Energy & Environmental Science

Abstract

We report new insights into the electrochemical reduction of CO2 on a metallic copper surface, enabled by the development of an experimental methodology with unprecedented sensitivity for the identification and quantification of CO2 electroreduction products. This involves a custom electrochemical cell designed to maximize product concentrations coupled to gas chromatography and nuclear magnetic resonance for the identification and quantification of gas and liquid products, respectively. We studied copper across a range of potentials and observed a total of 16 different CO2 reduction products, five of which are reported here for the first time, thus providing the most complete view of the reaction chemistry reported to date. Taking into account the chemical identities of the wide range of C1–C3 products generated and the potential-dependence of their turnover frequencies, mechanistic information is deduced. We discuss a scheme for the formation of multicarbon products involving enol-like surface intermediates as a possible pathway, accounting for the observed selectivity for eleven distinct C2+ oxygenated products including aldehydes, ketones, alcohols, and carboxylic acids.

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Crossref · 10.1039/c2ee21234j

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Authors
Kuhl, K. P., Cave, E. R., Abram, D. N., & Jaramillo, T. F.
Affiliations
Stanford University (US)
Corresponding author
Jaramillo, Thomas F.
Venue
Energy & Environmental Science
Published
2012
Volume
5
Issue
5
Pages
7050
ISSN
  • 1754-5692 (ISSN-L)
  • 1754-5706
OpenAlex
W2170456486
Cited by
3,160
References
40
Citations by year
2026: 196 · 2025: 286 · 2024: 313 · 2023: 296 · 2022: 335 · 2021: 334 · 2020: 335 · 2019: 275 · 2018: 235 · 2017: 185 · 2016: 136 · 2015: 104 · 2014: 84 · 2013: 40 · 2012: 5
FWCI
28.57
Type
journal article
Language
en
Open access
closed
Locations
Energy & Environmental Science (publishedVersion)
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
electrochemical CO2 reduction, copper catalysts, CO2 reduction products, electrochemical cell design, turnover frequency, reaction mechanism, multi-carbon products, aldehydes, ketones, carboxylic acids, alcohol chemistry, selectivity

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