DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Surface Ligand Promotion of Carbon Dioxide Reduction through Stabilizing Chemisorbed Reactive Intermediates

Journal Article · · Journal of Physical Chemistry Letters

We have explored functionalizing metal catalysts with surface ligands as an approach to facilitate electrochemical carbon dioxide reduction reaction (CO2RR). To provide a molecular level understanding of the mechanism by which this enhancement occurs, we combine in situ spectroscopy analysis with an interpretation based on quantum mechanics (QM) calculations. We find that a surface ligand can play a critical role in stabilizing the chemisorbed CO2, which facilitates CO2 activation and leads to a 0.3 V decrease in the overpotential for carbon monoxide (CO) formation. Moreover, the presence of the surface ligand leads to nearly exclusive CO production. At -0.6 V (versus reversible hydrogen electrode, RHE), CO is the only significant product with a faradic efficiency of 93% and a current density of 1.9 mA cm–2. This improvement corresponds to 53-fold enhancement in turnover frequency compared with the Ag nanoparticles (NPs) without surface ligands.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0004993
OSTI ID:
1467603
Journal Information:
Journal of Physical Chemistry Letters, Vol. 9, Issue 11; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 48 works
Citation information provided by
Web of Science

References (32)

Anthropogenic Chemical Carbon Cycle for a Sustainable Future journal August 2011
Observational determination of surface radiative forcing by CO2 from 2000 to 2010 journal February 2015
Ionic Liquid-Mediated Selective Conversion of CO2 to CO at Low Overpotentials journal September 2011
Electrocatalytic and homogeneous approaches to conversion of CO 2 to liquid fuels journal January 2009
Status and perspectives of CO2 conversion into fuels and chemicals by catalytic, photocatalytic and electrocatalytic processes journal January 2013
Electrocatalytic Conversion of Carbon Dioxide to Methane and Methanol on Transition Metal Surfaces journal August 2014
Unravelling charge carrier dynamics in protonated g-C3N4 interfaced with carbon nanodots as co-catalysts toward enhanced photocatalytic CO2 reduction: A combined experimental and first-principles DFT study journal February 2017
Ti 2 CO 2 MXene: a highly active and selective photocatalyst for CO 2 reduction journal January 2017
Understanding of Electrochemical Mechanisms for CO 2 Capture and Conversion into Hydrocarbon Fuels in Transition-Metal Carbides (MXenes) journal September 2017
A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels journal January 2014
Enhanced electrocatalytic CO2 reduction via field-induced reagent concentration journal August 2016
Synergistic geometric and electronic effects for electrochemical reduction of carbon dioxide using gold–copper bimetallic nanoparticles journal September 2014
A selective and efficient electrocatalyst for carbon dioxide reduction journal January 2014
Monodisperse Au Nanoparticles for Selective Electrocatalytic Reduction of CO 2 to CO journal October 2013
Achieving Selective and Efficient Electrocatalytic Activity for CO 2 Reduction Using Immobilized Silver Nanoparticles journal October 2015
Electrochemical Reduction of CO 2 at Functionalized Au Electrodes journal February 2017
Nitrogen-Based Catalysts for the Electrochemical Reduction of CO 2 to CO journal November 2012
In Situ Spectroscopic Examination of a Low Overpotential Pathway for Carbon Dioxide Conversion to Carbon Monoxide journal July 2012
Electrochemical CO2 reduction: Electrocatalyst, reaction mechanism, and process engineering journal November 2016
Ultrahigh Mass Activity for Carbon Dioxide Reduction Enabled by Gold–Iron Core–Shell Nanoparticles journal October 2017
Shape-Dependent Electrocatalytic Reduction of CO 2 to CO on Triangular Silver Nanoplates journal February 2017
Structure, Function, and Mechanism of the Nickel Metalloenzymes, CO Dehydrogenase, and Acetyl-CoA Synthase journal February 2014
Understanding Trends in the Electrocatalytic Activity of Metals and Enzymes for CO 2 Reduction to CO journal January 2013
Reaction Mechanisms for the Electrochemical Reduction of CO 2 to CO and Formate on the Cu(100) Surface at 298 K from Quantum Mechanics Free Energy Calculations with Explicit Water journal October 2016
Nature of the Active Sites for CO Reduction on Copper Nanoparticles; Suggestions for Optimizing Performance journal August 2017
Influence of electrolytes on the structure of cysteamine monolayer on silver studied by surface-enhanced Raman scattering journal January 2001
Structures of monolayers formed from different HS?(CH2)2?X thiols on gold, silver and copper: comparitive studies by surface-enhanced Raman scattering journal January 2003
Raman Study on the Structure of Cysteamine Monolayers on Silver journal April 1999
In Situ Surface-Enhanced Raman Spectroscopy of the Electrochemical Reduction of Carbon Dioxide on Silver with 3,5-Diamino-1,2,4-Triazole journal July 2014
Raman cross section of some simple gases journal January 1973
Matrix isolation and ab initio study on HCN/CO 2 system and its radiation-induced transformations: Spectroscopic evidence for HCN⋯CO 2 and trans -HCNH⋯CO 2 complexes journal December 2016
Effect of Chloride Anions on the Synthesis and Enhanced Catalytic Activity of Silver Nanocoral Electrodes for CO 2 Electroreduction journal August 2015

Cited By (7)

Polydopamine Functionalized Cu Nanowires for Enhanced CO 2 Electroreduction Towards Methane journal October 2018
Understanding the role of functional groups of thiolate ligands in electrochemical CO 2 reduction over Au(111) from first-principles journal January 2019
Tuning Gold Nanoparticles with Chelating Ligands for Highly Efficient Electrocatalytic CO 2 Reduction journal August 2018
Tuning Structural and Compositional Effects in Pd-Au Nanowires for Highly Selective and Active CO 2 Electrochemical Reduction Reaction journal October 2018
Electronic structure benchmark calculations of inorganic and biochemical carboxylation reactions journal February 2019
Biosynthesized silver nanorings as a highly efficient and selective electrocatalysts for CO 2 reduction journal January 2019
Tuning Gold Nanoparticles with Chelating Ligands for Highly Efficient Electrocatalytic CO 2 Reduction journal August 2018

Figures / Tables (4)