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Title: Is Subsurface Oxygen Necessary for the Electrochemical Reduction of CO2 on Copper?

Journal Article · · Journal of Physical Chemistry Letters
 [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Joint Center for Artificial Photosynthesis
  2. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
  3. Univ. of California, Berkeley, CA (United States). Dept. of Chemistry

It has recently been proposed that subsurface oxygen is crucial for the adsorption and subsequent electroreduction of CO2 on copper. Using density functional theory, we have studied the stability and diffusion of subsurface oxygen in single crystals of copper exposing (111) and (100) facets. Oxygen is at least 1.5 eV more stable on the surface than beneath it for both crystal orientations; interstitial sites are too small to accommodate oxygen. Here, the rate of atomic oxygen diffusion from one layer below a Cu(111) surface to the surface is 5 × 103 s–1. Oxygen can survive longer in deeper layers, but it does not promote CO2 adsorption there. Diffusion of subsurface oxygen is easier to the less-dense Cu(100) surface, even from lower layers (rate ≈ 1 × 107 s–1). Finally, once the applied voltage and dispersion forces are properly modeled, we find that subsurface oxygen is unnecessary for CO2 adsorption on copper.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; SC0004993
OSTI ID:
1430685
Journal Information:
Journal of Physical Chemistry Letters, Vol. 9, Issue 3; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 105 works
Citation information provided by
Web of Science

References (47)

Electrochemical CO2 Reduction on Metal Electrodes book January 2008
New insights into the electrochemical reduction of carbon dioxide on metallic copper surfaces journal January 2012
Electroreduction of carbon monoxide to liquid fuel on oxide-derived nanocrystalline copper journal April 2014
Electrochemical CO 2 reduction on Cu 2 O-derived copper nanoparticles: controlling the catalytic selectivity of hydrocarbons journal January 2014
Selective Electrochemical Reduction of Carbon Dioxide to Ethylene and Ethanol on Copper(I) Oxide Catalysts journal March 2015
High Selectivity for Ethylene from Carbon Dioxide Reduction over Copper Nanocube Electrocatalysts journal February 2015
Selective electrochemical reduction of CO 2 to CO on CuO-derived Cu nanowires journal January 2015
Morphology Matters: Tuning the Product Distribution of CO 2 Electroreduction on Oxide-Derived Cu Foam Catalysts journal May 2016
Optimizing C–C Coupling on Oxide-Derived Copper Catalysts for Electrochemical CO 2 Reduction journal June 2017
CO 2 Electroreduction at Low Overpotential on Oxide-Derived Cu/Carbons Fabricated from Metal Organic Framework journal February 2017
Insights into an autonomously formed oxygen-evacuated Cu 2 O electrode for the selective production of C 2 H 4 from CO 2 journal January 2015
Electrocatalytic Production of C3-C4 Compounds by Conversion of CO 2 on a Chloride-Induced Bi-Phasic Cu 2 O-Cu Catalyst journal October 2015
Highly selective plasma-activated copper catalysts for carbon dioxide reduction to ethylene journal June 2016
Subsurface oxide plays a critical role in CO 2 activation by Cu(111) surfaces to form chemisorbed CO 2 , the first step in reduction of CO 2 journal June 2017
Plasma-Activated Copper Nanocube Catalysts for Efficient Carbon Dioxide Electroreduction to Hydrocarbons and Alcohols journal April 2017
Subsurface Oxygen in Oxide-Derived Copper Electrocatalysts for Carbon Dioxide Reduction journal December 2016
Nature and Distribution of Stable Subsurface Oxygen in Copper Electrodes During Electrochemical CO 2 Reduction journal October 2017
Stability and Effects of Subsurface Oxygen in Oxide-Derived Cu Catalyst for CO 2 Reduction journal October 2017
Improvement of the selectivity of the electrochemical conversion of CO2 to hydrocarbons using cupreous electrodes with in-situ oxidation by oxygen journal January 2017
Cu metal embedded in oxidized matrix catalyst to promote CO 2 activation and CO dimerization for electrochemical reduction of CO 2 journal June 2017
Formation of Copper Catalysts for CO 2 Reduction with High Ethylene/Methane Product Ratio Investigated with In Situ X-ray Absorption Spectroscopy journal April 2016
Stability of Residual Oxides in Oxide-Derived Copper Catalysts for Electrochemical CO 2 Reduction Investigated with 18 O Labeling journal December 2017
Identification of Possible Pathways for C–C Bond Formation during Electrochemical Reduction of CO 2 : New Theoretical Insights from an Improved Electrochemical Model journal April 2016
Mechanism of CO 2 Reduction at Copper Surfaces: Pathways to C 2 Products journal January 2018
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Implicit solvation model for density-functional study of nanocrystal surfaces and reaction pathways journal February 2014
A Combined Kinetic−Quantum Mechanical Model for Assessment of Catalytic Cycles:  Application to Cross-Coupling and Heck Reactions journal March 2006
Kinetic-Quantum Chemical Model for Catalytic Cycles: The Haber−Bosch Process and the Effect of Reagent Concentration journal July 2008
What Makes for a Bad Catalytic Cycle? A Theoretical Study on the Suzuki−Miyaura Reaction within the Energetic Span Model journal February 2011
Diffusivity and solubility of oxygen in solid copper using potentiostatic and potentiometric techniques journal December 1983
Theoretical Study of Trans-metalation Process in Palladium-Catalyzed Borylation of Iodobenzene with Diboron journal August 2004
Mechanistic and Computational Study of a Palladacycle-Catalyzed Decomposition of a Series of Neutral Phosphorothioate Triesters in Methanol journal November 2010
Long-range correlation energy calculated from coupled atomic response functions journal May 2014
Versatile van der Waals Density Functional Based on a Meta-Generalized Gradient Approximation journal October 2016
Strongly Constrained and Appropriately Normed Semilocal Density Functional journal July 2015
Two Pathways for the Formation of Ethylene in CO Reduction on Single-Crystal Copper Electrodes journal June 2012
Theoretical Insights into a CO Dimerization Mechanism in CO 2 Electroreduction journal May 2015
Facet Dependence of CO 2 Reduction Paths on Cu Electrodes journal December 2015
Enhanced Carbon Dioxide Electroreduction to Carbon Monoxide over Defect-Rich Plasma-Activated Silver Catalysts journal August 2017
Oxygen-assisted cleavage of OH, NH, and CH bonds on transition metal surfaces: bond-order-conservation-Morse-potential analysis journal January 1992
Kinetics of oxygen adsorption, absorption, and desorption on the Cu(111) surface journal June 1993
Oxygen adsorption and stability of surface oxides on Cu ( 111 ) : A first-principles investigation journal April 2006
Atomic and molecular oxygen adsorbed on (111) transition metal surfaces: Cu and Ni journal April 2015
Density functional study of oxygen on Cu(100) and Cu(110) surfaces journal February 2010
Structure and composition of Cu(hkl) surfaces exposed to O2 and emersed from alkaline solutions: Prelude to UHV-EC studies of CO2 reduction at well-defined copper catalysts journal March 2014
Cathodic regeneration of a clean and ordered Cu(1 0 0)-(1×1) surface from an air-oxidized and disordered electrode: An operando STM study journal November 2014
Regulating the Product Distribution of CO Reduction by the Atomic-Level Structural Modification of the Cu Electrode Surface journal June 2016

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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
Rational catalyst and electrolyte design for CO2 electroreduction towards multicarbon products journal March 2019
On the origin of the elusive first intermediate of CO 2 electroreduction journal September 2018
Improving accuracy of electrochemical capacitance and solvation energetics in first-principles calculations journal April 2018
Electrochemical CO 2 Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design journal December 2018
Origin of structural stability of ScH 3 molecular nanowires and their chemical-bonding behavior: Correlation effects of the Sc 3d electrons journal May 2019
Atomic‐Scale Spacing between Copper Facets for the Electrochemical Reduction of Carbon Dioxide journal March 2020
Synergistic enhancement of electrocatalytic CO2 reduction to C2 oxygenates at nitrogen-doped nanodiamonds/Cu interface journal January 2020
On the Oxidation State of Cu 2 O upon Electrochemical CO 2 Reduction: An XPS Study journal July 2019
Insight into the Formation and Transfer Process of the First Intermediate of CO 2 Reduction over Ag‐Decorated Dendritic Cu journal October 2019
Zn nanosheets coated with a ZnS subnanometer layer for effective and durable CO 2 reduction journal January 2019
Paramelaconite‐Enriched Copper‐Based Material as an Efficient and Robust Catalyst for Electrochemical Carbon Dioxide Reduction journal June 2019
Electrochemical Reduction of CO 2 over Heterogeneous Catalysts in Aqueous Solution: Recent Progress and Perspectives journal December 2018

Figures / Tables (5)