Prism-Shaped Cu Nanocatalysts For Electrochemical Co2 Reduction To Ethylene

Keywords

CO reduction 2; copper; defects; ethylene; shape effects

Abstract

Electrochemical CO2 reduction has attracted much attention, because of its advantageous ability to convert CO2 gas to useful chemicals and fuels. Herein, we have developed prism-shaped Cu catalysts for efficient and stable CO2 electroreduction by using an electrodeposition method. These Cu prism electrodes were characterized by scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Electrochemical CO2 reduction measurements show improved activities for C2H4 production with a high partial current density of -11.8 mA/cm2, which is over four times higher than that of the planar Cu sample (-2.8 mA/cm2). We have demonstrated that the enhanced C2H4 production is partially attributed to the higher density of defect sites available on the roughened Cu prism surface. Furthermore, stability tests show a drastic improvement in maintaining C2H4 production over 12 h. The enhanced performance and durability of prism Cu catalysts hold promise for future industrial applications.

Publication Date

1-5-2018

Publication Title

ACS Catalysis

Volume

8

Issue

1

Number of Pages

531-535

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/acscatal.7b02959

Socpus ID

85040307159 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85040307159

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