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Title: In‐Situ Nanostructuring and Stabilization of Polycrystalline Copper by an Organic Salt Additive Promotes Electrocatalytic CO 2 Reduction to Ethylene

Journal Article · · Angewandte Chemie

Abstract Bridging homogeneous molecular systems with heterogeneous catalysts is a promising approach for the development of new electrodes, combining the advantages of both approaches. In the context of CO 2 electroreduction, molecular enhancement of planar copper electrodes has enabled promising advancement towards high Faradaic efficiencies for multicarbon products. Besides, nanostructured copper electrodes have also demonstrated enhanced performance at comparatively low overpotentials. Herein, we report a novel and convenient method for nanostructuring copper electrodes using N , N ′‐ethylene‐phenanthrolinium dibromide as molecular additive. Selectivities up to 70 % for C ≥2 products are observed for more than 40 h without significant change in the surface morphology. Mechanistic studies reveal several roles for the organic additive, including: the formation of cube‐like nanostructures by corrosion of the copper surface, the stabilization of these nanostructures during electrocatalysis by formation of a protective organic layer, and the promotion of C ≥2 products.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0004993
OSTI ID:
1573863
Journal Information:
Angewandte Chemie, Journal Name: Angewandte Chemie Vol. 131 Journal Issue: 47; ISSN 0044-8249
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (49)

CO2 Reduction at Low Overpotential on Cu Electrodes Resulting from the Reduction of Thick Cu2O Films journal April 2012
Mesostructure-Induced Selectivity in CO 2 Reduction Catalysis journal November 2015
Chelating N-Heterocyclic Carbene Ligands Enable Tuning of Electrocatalytic CO 2 Reduction to Formate and Carbon Monoxide: Surface Organometallic Chemistry journal March 2018
Nanostrukturierte Materialien für die elektrokatalytische CO 2 -Reduktion und ihre Reaktionsmechanismen journal July 2017
Controllable Hydrocarbon Formation from the Electrochemical Reduction of CO 2 over Cu Nanowire Arrays journal April 2016
X-ray Photoelectron Spectroscopy of Pyridinium-Based Ionic Liquids: Comparison to Imidazolium- and Pyrrolidinium-Based Analogues journal May 2015
Electrochemical CO2 Reduction on Metal Electrodes book January 2008
Selective Electroreduction of CO 2 toward Ethylene on Nano Dendritic Copper Catalysts at High Current Density journal January 2017
Eine Brücke zwischen industriellen und wohldefinierten Trägerkatalysatoren journal March 2018
Insight into Electrochemical CO 2 Reduction on Surface-Molecule-Mediated Ag Nanoparticles journal December 2016
Dynamic Changes in the Structure, Chemical State and Catalytic Selectivity of Cu Nanocubes during CO 2 Electroreduction: Size and Support Effects journal April 2018
Prism-Shaped Cu Nanocatalysts for Electrochemical CO 2 Reduction to Ethylene journal December 2017
Engineering Cu surfaces for the electrocatalytic conversion of CO 2 : Controlling selectivity toward oxygenates and hydrocarbons journal May 2017
Using a Two-Step Hydride Transfer To Achieve 1,4-Reduction in the Catalytic Hydrogenation of an Acyl Pyridinium Cation journal December 2008
Nanoscale corrosion behavior of polycrystalline copper fine wires in dilute NaCl solution investigated by in-situ atomic force microscopy journal April 2016
CO 2 Reduction Selective for C ≥2 Products on Polycrystalline Copper with N-Substituted Pyridinium Additives journal July 2017
Controllable Hydrocarbon Formation from the Electrochemical Reduction of CO 2 over Cu Nanowire Arrays journal April 2016
Catalysis by Design: Well-Defined Single-Site Heterogeneous Catalysts journal March 2016
Homogene und heterogene Katalyse – Brückenschlag durch Oberflächen-Organometallchemie journal January 2003
Copper nanoparticle ensembles for selective electroreduction of CO 2 to C 2 –C 3 products journal September 2017
Homogeneous and Heterogeneous Catalysis: Bridging the Gap through Surface Organometallic Chemistry journal January 2003
Nitrogen-containing polymers as a platform for CO2 electroreduction journal June 2017
Bridging the Gap between Industrial and Well-Defined Supported Catalysts journal March 2018
Improved CO 2 Electroreduction Performance on Plasma-Activated Cu Catalysts via Electrolyte Design: Halide Effect journal July 2017
High Selectivity for Ethylene from Carbon Dioxide Reduction over Copper Nanocube Electrocatalysts journal February 2015
Bridging homogeneous and heterogeneous catalysis by heterogeneous single-metal-site catalysts journal June 2018
Electrochemical specific adsorption of halides on Cu 111 , 100 , and 211 : A Density Functional Theory study journal August 2015
Nanostructured electrocatalysts with tunable activity and selectivity journal March 2016
Dynamic Changes in the Structure, Chemical State and Catalytic Selectivity of Cu Nanocubes during CO 2 Electroreduction: Size and Support Effects journal April 2018
Effects of temperature and gas–liquid mass transfer on the operation of small electrochemical cells for the quantitative evaluation of CO 2 reduction electrocatalysts journal January 2016
Structure- and Electrolyte-Sensitivity in CO 2 Electroreduction journal October 2018
Plasma-Activated Copper Nanocube Catalysts for Efficient Carbon Dioxide Electroreduction to Hydrocarbons and Alcohols journal April 2017
Ionic Liquid-Mediated Selective Conversion of CO2 to CO at Low Overpotentials journal September 2011
Catalyst electro-redeposition controls morphology and oxidation state for selective carbon dioxide reduction journal January 2018
Nanostructured Materials for Heterogeneous Electrocatalytic CO 2 Reduction and their Related Reaction Mechanisms journal July 2017
Evaluation of the Impact of Surface Reconstruction on Rough Electrodeposited Copper-Based Catalysts for Carbon Dioxide Electroreduction journal December 2016
High Selectivity for Ethylene from Carbon Dioxide Reduction over Copper Nanocube Electrocatalysts journal February 2015
Structure-Sensitive CO 2 Electroreduction to Hydrocarbons on Ultrathin 5-fold Twinned Copper Nanowires journal January 2017
Chelating N-Heterocyclic Carbene Ligands Enable Tuning of Electrocatalytic CO 2 Reduction to Formate and Carbon Monoxide: Surface Organometallic Chemistry journal March 2018
New Insights Into the Role of Imidazolium-Based Promoters for the Electroreduction of CO 2 on a Silver Electrode journal June 2016
Highly selective plasma-activated copper catalysts for carbon dioxide reduction to ethylene journal June 2016
Impurity Ion Complexation Enhances Carbon Dioxide Reduction Catalysis journal June 2015
Microporous carbonaceous adsorbents for CO 2 separation via selective adsorption journal January 2015
Supramolecular Porphyrin Cages Assembled at Molecular–Materials Interfaces for Electrocatalytic CO Reduction journal September 2017
CO 2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper journal April 2016
High-Density Nanosharp Microstructures Enable Efficient CO 2 Electroreduction journal October 2016
New insights into the electrochemical reduction of carbon dioxide on metallic copper surfaces journal January 2012
Achieving Selective and Efficient Electrocatalytic Activity for CO 2 Reduction Using Immobilized Silver Nanoparticles journal October 2015
Tuning the Catalytic Activity and Selectivity of Cu for CO 2 Electroreduction in the Presence of Halides journal February 2016