Design of Hierarchically Structured Gold Catalysts for Electrochemical CO2 Reduction

Title
Design of Hierarchically Structured Gold Catalysts for Electrochemical CO2 Reduction
Authors
고재현황윤정
Issue Date
2014-05
Publisher
한국공업화학회
Abstract
Electrochemical (EC) reduction of carbon dioxide into C1 products with high energy density has attracted attention due to the demands for renewable energy as a substitute for fossil fuel. Herein, we demonstrate an EC CO2 reduction system where the cathode consists of hierarchically structured Au catalysts in acetonitrile-water mixture electrolyte. To be more specific, the Au catalysts were prepared by oxygen plasma treatment on the Au foil, followed by thermal annealing process, to increase the current density for the selective production of carbon monoxide with over 90% of Faradaic efficiency. Products were analyzed by gas chromatography with FID and TCD, and Faradaic efficiencies were evaluated by chronoamperometry. Furthermore, the Faradaic efficiency, the stability of the catalyst, and the production rate were significantly improved due to increased number of active sites of the catalyst and expanded surface area, compared with the ones from a bare Au electrode.
URI
http://pubs.kist.re.kr/handle/201004/48945
Appears in Collections:
KIST Publication > Conference Paper
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE