Cited by 658CO2 Reduction Techniques and CatalystsCatalysts for Methane ReformingCarbon dioxide utilization in catalysis

A metal-free electrocatalyst for carbon dioxide reduction to multi-carbon hydrocarbons and oxygenates

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Wu, Jingjie, Ma, Sichao, Sun, Jing, Gold, Jake I., Tiwary, ChandraSekhar, Kim, Byoungsu, Zhu, Lingyang, Chopra, Nitin +8 more·2016·Nature Communications

Abstract

Electroreduction of carbon dioxide into higher-energy liquid fuels and chemicals is a promising but challenging renewable energy conversion technology. Among the electrocatalysts screened so far for carbon dioxide reduction, which includes metals, alloys, organometallics, layered materials and carbon nanostructures, only copper exhibits selectivity towards formation of hydrocarbons and multi-carbon oxygenates at fairly high efficiencies, whereas most others favour production of carbon monoxide or formate. Here we report that nanometre-size N-doped graphene quantum dots (NGQDs) catalyse the electrochemical reduction of carbon dioxide into multi-carbon hydrocarbons and oxygenates at high Faradaic efficiencies, high current densities and low overpotentials. The NGQDs show a high total Faradaic efficiency of carbon dioxide reduction of up to 90%, with selectivity for ethylene and ethanol conversions reaching 45%. The C2 and C3 product distribution and production rate for NGQD-catalysed carbon dioxide reduction is comparable to those obtained with copper nanoparticle-based electrocatalysts.

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Authors
Wu, J., Ma, S., Sun, J., Gold, J. I., Tiwary, C., Kim, B., Zhu, L., Chopra, N., Odeh, I. N., Vajtai, R., Yu, A. Z., Luo, R., Lou, J., Ding, G., Kenis, P. J. A., & Ajayan, P. M.
Affiliations
  • Rice University (US)
  • Kyushu University (JP)
  • Chinese Academy of Sciences (CN)
  • University of Illinois Urbana-Champaign (US)
  • Saudi Arabia Basic Industries (United States) (US)
Corresponding author
  • Ding, Guqiao
  • Kenis, Paul J. A.
  • Ajayan, Pulickel M.
Venue
Nature Communications
Published
2016-12-13
Volume
7
Issue
1
Pages
13869-13869
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2561581195
Cited by
658
References
32
Citations by year
2026: 33 · 2025: 53 · 2024: 64 · 2023: 62 · 2022: 66 · 2021: 86 · 2020: 102 · 2019: 83 · 2018: 70 · 2017: 39
FWCI
17.38
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Rice Research Repository (Rice University) (submittedVersion, cc-by)
Funders
  • University of South Carolina
  • Saudi Basic Industries Corporation
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 › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
Keywords
metal-free electrocatalysts, nitrogen-doped graphene quantum dots, ethylene production, ethanol production, Faradaic efficiency

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