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Title: Formation of Copper Catalysts for CO2 Reduction with High Ethylene/Methane Product Ratio Investigated with In Situ X-ray Absorption Spectroscopy

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [1];  [1];  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States). SUNCAT Center for Interface Science and Catalysis, Dept. of Chemical Engineering
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States). SUNCAT Center for Interface Science and Catalysis, Dept. of Chemical Engineering; Stockholm Univ. (Sweden). AlbaNova University Center, Dept. of Physics

Nanostructured copper cathodes are among the most efficient and selective catalysts to date for making multicarbon products from the electrochemical carbon dioxide reduction reaction (CO2RR). We report an in situ X-ray absorption spectroscopy investigation of the formation of a copper nanocube CO2RR catalyst with high activity that highly favors ethylene over methane production. The results show that the precursor for the copper nanocube formation is copper(I)-oxide, not copper(I)-chloride as previously assumed. A second route to an electrochemically similar material via a copper(II)–carbonate/hydroxide is also reported. In conclusion, this study highlights the importance of using oxidized copper precursors for constructing selective CO2 reduction catalysts and shows the precursor oxidation state does not affect the electrocatalyst selectivity toward ethylene formation.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE; US Air Force Office of Scientific Research (AFOSR)
Grant/Contract Number:
FA9550-10-1-0572; AC02-76SF00515
OSTI ID:
1256341
Journal Information:
Journal of Physical Chemistry Letters, Vol. 7, Issue 8; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 117 works
Citation information provided by
Web of Science

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Cited By (21)

Synthesis and Characterization of Degradation‐Resistant Cu@CuPd Nanowire Catalysts for the Efficient Production of Formate and CO from CO 2 journal May 2019
Effect of Annealing Treatment on Electrocatalytic Properties of Copper Electrodes toward Enhanced CO 2 Reduction journal August 2018
Advances and challenges in understanding the electrocatalytic conversion of carbon dioxide to fuels journal September 2019
New aspects of C2 selectivity in electrochemical CO 2 reduction over oxide-derived copper journal January 2020
Selective and Low Overpotential Electrochemical CO2 Reduction to Formate on CuS Decorated CuO Heterostructure journal January 2019
Electrochemical processes on solid shaped nanoparticles with defined facets journal January 2018
Understanding three-dimensionally interconnected porous oxide-derived copper electrocatalyst for selective carbon dioxide reduction journal January 2019
Solar conversion of CO2 to CO using Earth-abundant electrocatalysts prepared by atomic layer modification of CuO journal June 2017
CO 2 reduction: the quest for electrocatalytic materials journal January 2017
Tunable formation of copper metal, oxide, chloride and hydroxyl chloride nanoparticles from aqueous copper solutions using nanoscale zerovalent iron particles journal January 2019
Understanding the Heterogeneous Electrocatalytic Reduction of Carbon Dioxide on Oxide-Derived Catalysts journal December 2017
Size-Dependent Activity of Palladium Nanoparticles: Efficient Conversion of CO 2 into Formate at Low Overpotentials journal March 2017
Catalyst electro-redeposition controls morphology and oxidation state for selective carbon dioxide reduction journal January 2018
Electrochemical Carbon Dioxide Reduction at Nanostructured Gold, Copper, and Alloy Materials journal March 2017
Controlling the nucleophilic properties of cobalt salen complexes for carbon dioxide capture journal January 2019
A Disquisition on the Active Sites of Heterogeneous Catalysts for Electrochemical Reduction of CO 2 to Value‐Added Chemicals and Fuel journal November 2019
Dopant-induced electron localization drives CO2 reduction to C2 hydrocarbons journal July 2018
Understanding cation effects in electrochemical CO 2 reduction journal January 2019
Synthesis and Characterization of Degradation‐Resistant Cu@CuPd Nanowire Catalysts for the Efficient Production of Formate and CO from CO 2 text January 2019
Copper sulfide derived nanoparticles supported on carbon for the electrochemical reduction of carbon dioxide journal October 2021
In-situ Spectroscopic Techniques as Critical Evaluation Tools for Electrochemical Carbon dioxide Reduction: A Mini Review journal March 2020

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