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Amorphous CeO2–Cu Heterostructure Enhances CO2 Electroreduction to Multicarbon Alcohols

Journal Article · · ACS Materials Letters
Electrochemical conversion of carbon dioxide (CO2) gas to value-added chemicals such as multicarbon (C2+) alcohols is a promising and attractive decarbonization strategy. However, there are tremendous challenges in tuning the intrinsic activity and selectivity of the catalysts to produce C2+ alcohols. In this work, we prepared a CeO2–Cu composite catalyst via a combination of metallurgy and dealloying method. The interfacial sites of amorphous CeO2–Cu heterostructure improve the adsorption of key reaction intermediates *CO and promote the C–C coupling. Significantly, they also stabilize *CH2CHO at the bifurcation step, steering the reaction pathway toward the formation of C2+ alcohols over ethylene. The CeO2–Cu catalyst achieves a remarkable faradaic efficiency of 32.9% ± 2.6% for C2+ alcohols at -0.6 V vs RHE. Overall, this work demonstrates an effective strategy of improving the intrinsic activity and selectivity of the Cu-based catalysts for the generation of C2+ alcohols.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
Merced nAnomaterials Center for Energy and Sensing (MACES); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1903453
Report Number(s):
LLNL-JRNL-835770; 1054952
Journal Information:
ACS Materials Letters, Journal Name: ACS Materials Letters Journal Issue: 10 Vol. 4; ISSN 2639-4979
Publisher:
ACS PublicationsCopyright Statement
Country of Publication:
United States
Language:
English

References (63)

Amorphizing of Cu Nanoparticles toward Highly Efficient and Robust Electrocatalyst for CO 2 Reduction to Liquid Fuels with High Faradaic Efficiencies journal February 2018
A Highly Porous Copper Electrocatalyst for Carbon Dioxide Reduction journal October 2018
Novel Bi‐Doped Amorphous SnO x Nanoshells for Efficient Electrochemical CO 2 Reduction into Formate at Low Overpotentials journal July 2020
Atomic Layer Deposition of ZnO on CuO Enables Selective and Efficient Electroreduction of Carbon Dioxide to Liquid Fuels journal September 2019
Electrochemical Reduction of CO 2 to Ethane through Stabilization of an Ethoxy Intermediate journal May 2020
Surface Reconstruction of Ultrathin Palladium Nanosheets during Electrocatalytic CO 2 Reduction journal September 2020
Highly dispersed Cu supported on mesoporous Al‐KIT‐6 for oxidative carbonylation of methanol to dimethyl carbonate journal March 2020
Insights into CC Coupling in CO 2 Electroreduction on Copper Electrodes journal January 2013
Production and Use of Sustainable C2‐C4 Alcohols – An Industrial Perspective journal August 2020
Suppressing the liquid product crossover in electrochemical CO 2 reduction journal January 2021
The Reduction of Cu2+ Promoted by Zn or Ni on rGO journal February 2020
Amorphous alloys for electrocatalysis: The significant role of the amorphous alloy structure journal July 2021
Hetero-Interfaces on Cu Electrode for Enhanced Electrochemical Conversion of CO2 to Multi-Carbon Products journal June 2022
Preparation of CuO nanoparticles by microwave irradiation journal September 2002
Electrochemical reduction of carbon dioxide at various series of copper single crystal electrodes journal May 2003
XPS studies on the interaction of CeO2 with silicon in magnetron sputtered CeO2 thin films on Si and Si3N4 substrates journal October 2013
Recent advances in metal-based electrocatalysts with hetero-interfaces for CO2 reduction reaction journal February 2022
Surface and Interface Engineering in Copper-Based Bimetallic Materials for Selective CO2 Electroreduction journal August 2018
Enhanced electroreduction of CO2 to C2+ products on heterostructured Cu/oxide electrodes journal August 2022
In-situ synthesis of Cu/Cu2+1O/carbon spheres for the electrochemical sensing of glucose in serum journal January 2022
CeO2-modified Cu electrode for efficient CO2 electroreduction to multi-carbon products journal December 2021
CO2-to-Fuels Renewable Gasoline and Jet Fuel Can Soon Be Price Competitive with Fossil Fuels journal March 2020
One-step electrosynthesis of ethylene and ethanol from CO2 in an alkaline electrolyzer journal January 2016
In situ self-reconstruction inducing amorphous species: A key to electrocatalysis journal September 2021
Electrochemical CO2 reduction to C2+ species: Heterogeneous electrocatalysts, reaction pathways, and optimization strategies journal December 2018
Recent progress in electrochemical reduction of CO2 by oxide-derived copper catalysts journal December 2020
Tandem Electrodes for Carbon Dioxide Reduction into C2+ Products at Simultaneously High Production Efficiency and Rate journal April 2020
Lewis Acid Site-Promoted Single-Atomic Cu Catalyzes Electrochemical CO2 Methanation journal August 2021
Conformal Shell Amorphization of Nanoporous Ag-Bi for Efficient Formate Generation journal May 2020
Nature of Reactive Oxygen Intermediates on Copper-Promoted Iron–Chromium Oxide Catalysts during CO 2 Activation journal June 2020
Customizable CO2 Electroreduction to C1 or C2+ Products through Cuy/CeO2 Interface Engineering journal January 2022
Nanoporous Copper Films by Additive-Controlled Electrodeposition: CO 2 Reduction Catalysis journal April 2017
Copper Cobalt Sulfide Nanosheets Realizing a Promising Electrocatalytic Oxygen Evolution Reaction journal August 2017
Importance of Ag–Cu Biphasic Boundaries for Selective Electrochemical Reduction of CO 2 to Ethanol journal November 2017
Single-Atomic Cu with Multiple Oxygen Vacancies on Ceria for Electrocatalytic CO 2 Reduction to CH 4 journal June 2018
Synthesis of Cu/CeO 2-x Nanocrystalline Heterodimers with Interfacial Active Sites To Promote CO 2 Electroreduction journal April 2019
Mechanistic Understanding of CO 2 Reduction Reaction (CO2RR) Toward Multicarbon Products by Heterogeneous Copper-Based Catalysts journal December 2019
Role of the Carbon-Based Gas Diffusion Layer on Flooding in a Gas Diffusion Electrode Cell for Electrochemical CO 2 Reduction journal November 2020
Fastening Br Ions at Copper–Molecule Interface Enables Highly Efficient Electroreduction of CO2 to Ethanol journal January 2021
Metal–Oxide Interfaces for Selective Electrochemical C–C Coupling Reactions journal August 2019
Grain-Boundary-Rich Copper for Efficient Solar-Driven Electrochemical CO 2 Reduction to Ethylene and Ethanol journal March 2020
Nanoporous Copper–Silver Alloys by Additive-Controlled Electrodeposition for the Selective Electroreduction of CO 2 to Ethylene and Ethanol journal April 2018
Understanding the Roadmap for Electrochemical Reduction of CO 2 to Multi-Carbon Oxygenates and Hydrocarbons on Copper-Based Catalysts journal April 2019
CO 2 Adsorption As a Flat-Lying, Tridentate Carbonate on CeO 2 (100) journal April 2014
Hydroxide promotes carbon dioxide electroreduction to ethanol on copper via tuning of adsorbed hydrogen journal December 2019
Silica-copper catalyst interfaces enable carbon-carbon coupling towards ethylene electrosynthesis journal May 2021
Techno-economic assessment of low-temperature carbon dioxide electrolysis journal July 2021
Steering post-C–C coupling selectivity enables high efficiency electroreduction of carbon dioxide to multi-carbon alcohols journal June 2018
Improved CO2 reduction activity towards C2+ alcohols on a tandem gold on copper electrocatalyst journal October 2018
Dealloying assisted high-yield growth of surfactant-free <110> highly active Cu-doped CeO2 nanowires for low-temperature CO oxidation journal January 2017
Stabilization of Cu+by tuning a CuO–CeO2interface for selective electrochemical CO2reduction to ethylene journal January 2020
Role of oxygen-bound reaction intermediates in selective electrochemical CO2 reduction journal January 2021
Efficient electroreduction of CO2 to C2+ products on CeO2 modified CuO journal January 2021
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
A unified formulation of the constant temperature molecular dynamics methods journal July 1984
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Generalized Gradient Approximation Made Simple journal October 1996
Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from CO2 journal July 2014
CO 2 electroreduction to ethylene via hydroxide-mediated copper catalysis at an abrupt interface journal May 2018
Effect of Dealloying Time and Post-Annealing on the Surface Morphology and Electrocatalytic Behavior of Nanoporous Copper Films for CO2 Reduction Reaction journal December 2021
Mapping Microscale Chemical Heterogeneity in Nafion Membranes with X-ray Photoelectron Spectroscopy journal January 2018
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction journal April 2018