Synergistic Cu/CeO2 carbon nanofiber catalysts for efficient CO2 electroreduction

Xin Zong; Jie Zhang; Jinqiu Zhang; Wen Luo; Andreas Züttel; Yueping Xiong

doi:10.1016/j.elecom.2020.106716

Synergistic Cu/CeO₂ carbon nanofiber catalysts for efficient CO₂ electroreduction

Xin Zong
, Jie Zhang
, Jinqiu Zhang
, Wen Luo^*
, Andreas Züttel
, Yueping Xiong

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Swiss Federal Institute of Technology Lausanne
Swiss Federal Laboratories for Materials Science and Technology (Empa)

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

The electrochemical reduction of carbon dioxide (CO₂RR) has attracted enormous interest because of the energy crisis and climate change; however, more efficient catalysts are required for practical applications. Herein, we present electrospinning as a facile strategy to synthesize a three-dimensional network of carbon nanofibers embedded with Cu and CeO_x nanoparticles (Cu/CeO_x@CNFs) as a CO₂RR catalyst. The Cu–CeO_x interface produced using this method offers synergistic geometric and electronic effects which optimize the adsorption strength of reaction intermediates for the electroreduction of CO₂ to CO. In a flow cell configuration, a current density of 100 mA cm⁻² and a CO faradaic efficiency of 59.2% can be obtained at −0.60 V vs. RHE.

Original language	English
Article number	106716
Journal	Electrochemistry Communications
Volume	114
DOIs	https://doi.org/10.1016/j.elecom.2020.106716
State	Published - May 2020
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Keywords

CO electroreduction
Ceria
Copper
Electrospinning
Flow cell

Access to Document

10.1016/j.elecom.2020.106716

Cite this

@article{c71f4570ff28496598396b209ef61d80,

title = "Synergistic Cu/CeO2 carbon nanofiber catalysts for efficient CO2 electroreduction",

abstract = "The electrochemical reduction of carbon dioxide (CO2RR) has attracted enormous interest because of the energy crisis and climate change; however, more efficient catalysts are required for practical applications. Herein, we present electrospinning as a facile strategy to synthesize a three-dimensional network of carbon nanofibers embedded with Cu and CeOx nanoparticles (Cu/CeOx@CNFs) as a CO2RR catalyst. The Cu–CeOx interface produced using this method offers synergistic geometric and electronic effects which optimize the adsorption strength of reaction intermediates for the electroreduction of CO2 to CO. In a flow cell configuration, a current density of 100 mA cm−2 and a CO faradaic efficiency of 59.2\% can be obtained at −0.60 V vs. RHE.",

keywords = "CO electroreduction, Ceria, Copper, Electrospinning, Flow cell",

author = "Xin Zong and Jie Zhang and Jinqiu Zhang and Wen Luo and Andreas Z{\"u}ttel and Yueping Xiong",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s)",

year = "2020",

month = may,

doi = "10.1016/j.elecom.2020.106716",

language = "英语",

volume = "114",

journal = "Electrochemistry Communications",

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TY - JOUR

T1 - Synergistic Cu/CeO2 carbon nanofiber catalysts for efficient CO2 electroreduction

AU - Zong, Xin

AU - Zhang, Jie

AU - Zhang, Jinqiu

AU - Luo, Wen

AU - Züttel, Andreas

AU - Xiong, Yueping

PY - 2020/5

Y1 - 2020/5

N2 - The electrochemical reduction of carbon dioxide (CO2RR) has attracted enormous interest because of the energy crisis and climate change; however, more efficient catalysts are required for practical applications. Herein, we present electrospinning as a facile strategy to synthesize a three-dimensional network of carbon nanofibers embedded with Cu and CeOx nanoparticles (Cu/CeOx@CNFs) as a CO2RR catalyst. The Cu–CeOx interface produced using this method offers synergistic geometric and electronic effects which optimize the adsorption strength of reaction intermediates for the electroreduction of CO2 to CO. In a flow cell configuration, a current density of 100 mA cm−2 and a CO faradaic efficiency of 59.2% can be obtained at −0.60 V vs. RHE.

AB - The electrochemical reduction of carbon dioxide (CO2RR) has attracted enormous interest because of the energy crisis and climate change; however, more efficient catalysts are required for practical applications. Herein, we present electrospinning as a facile strategy to synthesize a three-dimensional network of carbon nanofibers embedded with Cu and CeOx nanoparticles (Cu/CeOx@CNFs) as a CO2RR catalyst. The Cu–CeOx interface produced using this method offers synergistic geometric and electronic effects which optimize the adsorption strength of reaction intermediates for the electroreduction of CO2 to CO. In a flow cell configuration, a current density of 100 mA cm−2 and a CO faradaic efficiency of 59.2% can be obtained at −0.60 V vs. RHE.

KW - CO electroreduction

KW - Ceria

KW - Copper

KW - Electrospinning

KW - Flow cell

UR - https://www.scopus.com/pages/publications/85082392934

U2 - 10.1016/j.elecom.2020.106716

DO - 10.1016/j.elecom.2020.106716

M3 - 文章

AN - SCOPUS:85082392934

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VL - 114

JO - Electrochemistry Communications

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