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Updated: Sep 8, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Engineering the CuO-HfO2 interface toward enhanced CO2 electroreduction to C2H4
Xin Li1, Lifen Li2, Lijun Wang1
1State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China. sunzy/mail.buct.edu.cn.
Abstract:
We report significantly enhanced electrochemical CO2 reduction (ECR) to C2H4 by tuning the interface of a metal oxide composite (CuO/HfO2), enabling a C2H4 faradaic efficiency as high as 62.6 ± 1.3% at 300 mA cm-2, in contrast to only 11.6 ± 1.6% over pure CuO. Collective knowledge from multiple control experiments, density functional theory calculations, and operando Raman study reveals that the CuO-HfO2 interface greatly strengthens CO2 adsorption and the binding of *CO for further C-C coupling to yield C2H4.
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