Progress and Perspectives of Electrochemical CO2 Reduction on Copper in Aqueous Electrolyte
Stephanie A. Nitopi,Erlend Bertheussen,Søren Bertelsen Scott,Xinyan Liu,Albert K. Engstfeld,Albert K. Engstfeld,Sebastian Horch,Brian Seger,Ifan E. L. Stephens,Ifan E. L. Stephens,Karen Chan,Karen Chan,Christopher Hahn,Christopher Hahn,Jens K. Nørskov,Jens K. Nørskov,Jens K. Nørskov,Thomas F. Jaramillo,Thomas F. Jaramillo,Ib Chorkendorff +19 more
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TLDR
A broad and historical view of different aspects and their complex interplay in CO2R catalysis on Cu is taken, with the purpose of providing new insights, critical evaluations, and guidance to the field with regard to research directions and best practices.Abstract:
To date, copper is the only heterogeneous catalyst that has shown a propensity to produce valuable hydrocarbons and alcohols, such as ethylene and ethanol, from electrochemical CO2 reduction (CO2R). There are variety of factors that impact CO2R activity and selectivity, including the catalyst surface structure, morphology, composition, the choice of electrolyte ions and pH, and the electrochemical cell design. Many of these factors are often intertwined, which can complicate catalyst discovery and design efforts. Here we take a broad and historical view of these different aspects and their complex interplay in CO2R catalysis on Cu, with the purpose of providing new insights, critical evaluations, and guidance to the field with regard to research directions and best practices. First, we describe the various experimental probes and complementary theoretical methods that have been used to discern the mechanisms by which products are formed, and next we present our current understanding of the complex reaction networks for CO2R on Cu. We then analyze two key methods that have been used in attempts to alter the activity and selectivity of Cu: nanostructuring and the formation of bimetallic electrodes. Finally, we offer some perspectives on the future outlook for electrochemical CO2R.read more
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Facet-Dependent Selectivity of Cu Catalysts in Electrochemical CO 2 Reduction at Commercially Viable Current Densities
Gian Luca De Gregorio,Thomas Burdyny,Anna Loiudice,Pranit Iyengar,Wilson A. Smith,Raffaella Buonsanti +5 more
TL;DR: It is demonstrated that the catalytic properties of tailored Cu nanocatalysts under commercially relevant current densities in a gas-fed flow cell with the advantage of further suppressing hydrogen production and increasing the faradaic efficiencies toward the CO2 reduction products compared to a conventional H-cell.
Journal ArticleDOI
Electrocatalytic reduction of carbon dioxide: opportunities with heterogeneous molecular catalysts
TL;DR: In this article, a review summarizes the methods that have been developed so far for heterogeneous immobilization of homogeneous molecular catalysts, including covalent/non-covalent bonding, and assembling the catalysts into a periodic skeleton.
Journal ArticleDOI
Stability and Degradation Mechanisms of Copper‐Based Catalysts for Electrochemical CO 2 Reduction
TL;DR: In this article, the recent progress on understanding the stability of copper-based catalysts is summarized, along with the very few proposed degradation mechanisms, and a perspective on the topic is given.
Journal ArticleDOI
Transition metal-based catalysts for the electrochemical CO2 reduction: from atoms and molecules to nanostructured materials
TL;DR: The studies herein presented show that the basic principles in molecular catalysis and organometallic chemistry can be effectively used to design new efficient and selective heterogeneous catalysts for CO2 reduction.
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