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A Nitrogen-Doped Carbon Catalyst for Electrochemical CO2 Conversion to CO with High Selectivity and Current Density

Journal Article · · ChemSusChem
 [1];  [2];  [3];  [4];  [5];  [4]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States); DOE/OSTI
  2. Univ. of Illinois at Urbana-Champaign, IL (United States)
  3. Kyushu Univ., Fukuoka (Japan)
  4. Univ. of Illinois at Urbana-Champaign, IL (United States); Kyushu Univ., Fukuoka (Japan)
  5. Kyushu Univ., Fukuoka (Japan); University of Sheffield (United Kingdom)
We report characterization of a non-precious metal-free catalyst for the electrochemical reduction of CO2 to CO; namely, a pyrolyzed carbon nitride and multiwall carbon nanotube composite. This catalyst exhibits a high selectivity for production of CO over H2 (approximately 98 % CO and 2 % H2), as well as high activity in an electrochemical flow cell. The CO partial current density at intermediate cathode potentials (V=-1.46 V vs. Ag/AgCl) is up to 3.5× higher than state-of-the-art Ag nanoparticle-based catalysts, and the maximum current density is 90 mA cm-2. The mass activity and energy efficiency (up to 48 %) were also higher than the Ag nanoparticle reference. Moving away from precious metal catalysts without sacrificing activity or selectivity may significantly enhance the prospects of electrochemical CO2 reduction as an approach to reduce atmospheric CO2 emissions or as a method for load-leveling in relation to the use of intermittent renewable energy sources.
Research Organization:
Dioxide Materials, Inc., Boca Raton, FL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
SC0004453
OSTI ID:
1533149
Alternate ID(s):
OSTI ID: 1401240
Journal Information:
ChemSusChem, Journal Name: ChemSusChem Journal Issue: 6 Vol. 10; ISSN 1864-5631
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (28)

Dopant-tuned stabilization of intermediates promotes electrosynthesis of valuable C3 products journal October 2019
Identifying Active Sites of Nitrogen-Doped Carbon Materials for the CO 2 Reduction Reaction journal April 2018
Recent Advances in Electrochemical CO 2 -to-CO Conversion on Heterogeneous Catalysts journal August 2018
Emerging Carbon‐Based Heterogeneous Catalysts for Electrochemical Reduction of Carbon Dioxide into Value‐Added Chemicals journal December 2018
Recent Advances in Carbon‐Based Metal‐Free Electrocatalysts journal December 2018
Electrochemical CO 2 Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design journal December 2018
Carbon Solving Carbon's Problems: Recent Progress of Nanostructured Carbon-Based Catalysts for the Electrochemical Reduction of CO 2 journal July 2017
Tunable and Efficient Tin Modified Nitrogen‐Doped Carbon Nanofibers for Electrochemical Reduction of Aqueous Carbon Dioxide journal January 2018
Molecular Nitrogen-Carbon Catalysts, Solid Metal Organic Framework Catalysts, and Solid Metal/Nitrogen-Doped Carbon (MNC) Catalysts for the Electrochemical CO 2 Reduction journal July 2018
Molecular Nitrogen-Carbon Catalysts, Solid Metal Organic Framework Catalysts, and Solid Metal/Nitrogen-Doped Carbon (MNC) Catalysts for the Electrochemical CO 2 Reduction journal October 2018
A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO 2 to Value‐Added Chemicals and Fuel journal November 2019
Highly Efficient Porous Carbon Electrocatalyst with Controllable N‐Species Content for Selective CO 2 Reduction journal January 2020
Efficient Electrocatalytic Reduction of CO 2 by Nitrogen-Doped Nanoporous Carbon/Carbon Nanotube Membranes: A Step Towards the Electrochemical CO 2 Refinery journal June 2017
Highly Efficient Porous Carbon Electrocatalyst with Controllable N‐Species Content for Selective CO 2 Reduction journal February 2020
Progress in development of electrocatalyst for CO 2 conversion to selective CO production journal March 2020
Metal-free carbon-based materials for electrocatalytic and photo-electrocatalytic CO2 reduction journal July 2019
Efficient upgrading of CO to C3 fuel using asymmetric C-C coupling active sites journal November 2019
Copper nanocavities confine intermediates for efficient electrosynthesis of C3 alcohol fuels from carbon monoxide journal October 2018
Ultrasmall Au nanocatalysts supported on nitrided carbon for electrocatalytic CO 2 reduction: the role of the carbon support in high selectivity journal January 2018
How to teach an old dog new (electrochemical) tricks: aziridine-functionalized CNTs as efficient electrocatalysts for the selective CO 2 reduction to CO journal January 2018
Heteroatom-doped carbon materials and their composites as electrocatalysts for CO 2 reduction journal January 2018
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Towards Higher Rate Electrochemical CO2 Conversion: From Liquid-Phase to Gas-Phase Systems journal March 2019

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