NDLI: Low Overpotential Electrochemical Reduction of CO<sub>2</sub> to Ethanol Enabled by Cu/Cu<sub>x</sub>O Nanoparticles Embedded in Nitrogen-Doped Carbon Cuboids.

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Low Overpotential Electrochemical Reduction of CO₂ to Ethanol Enabled by Cu/Cu_xO Nanoparticles Embedded in Nitrogen-Doped Carbon Cuboids.

Content Provider	Europe PMC
Author	Alkoshab, Monther Q. Thomou, Eleni Abdulazeez, Ismail Suliman, Munzir H. Spyrou, Konstantinos Iali, Wissam Alhooshani, Khalid Baroud, Turki N.
Editor	Yentekakis, Ioannis V.
Copyright Year	2023
Abstract	The electrochemical conversion of CO2 into value-added chemicals is a promising approach for addressing environmental and energy supply problems. In this study, electrochemical CO2 catalysis to ethanol is achieved using incorporated Cu/CuxO nanoparticles into nitrogenous porous carbon cuboids. Pyrolysis of the coordinated Cu cations with nitrogen heterocycles allowed Cu nanoparticles to detach from the coordination complex but remain dispersed throughout the porous carbon cuboids. The heterogeneous composite Cu/CuxO-PCC-0h electrocatalyst reduced CO2 to ethanol at low overpotential in 0.5 M KHCO3, exhibiting maximum ethanol faradaic efficiency of 50% at −0.5 V vs. reversible hydrogen electrode. Such electrochemical performance can be ascribed to the synergy between pyridinic nitrogen species, Cu/CuxO nanoparticles, and porous carbon morphology, together providing efficient CO2 diffusion, activation, and intermediates stabilization. This was supported by the notably high electrochemically active surface area, rich porosity, and efficient charge transfer properties.
Journal	Nanomaterials (Basel, Switzerland)
Volume Number	13
PubMed Central reference number	PMC9863918
Issue Number	2
PubMed reference number	36677984
e-ISSN	20794991
DOI	10.3390/nano13020230
Language	English
Publisher	MDPI
Publisher Date	2023-01-04
Access Restriction	Open
Rights License	Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2023 by the authors.
Subject Keyword	electrochemical reduction CO2 ethanol low overpotential porous carbon support Cu nanoparticles
Content Type	Text
Resource Type	Article
Subject	Chemical Engineering Materials Science

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Low Overpotential Electrochemical Reduction of CO2 to Ethanol Enabled by Cu/CuxO Nanoparticles Embedded in Nitrogen-Doped Carbon Cuboids.

Low Overpotential Electrochemical Reduction of CO₂ to Ethanol Enabled by Cu/Cu_xO Nanoparticles Embedded in Nitrogen-Doped Carbon Cuboids.