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Gold catalyst reactivity for CO2 electro-reduction: From nano particle to layer

Authors
Nursanto, Eduardus BudiJeon, Hyo SangKim, CheongheeJee, Michael ShincheonKoh, Jai HyunHwang, Yun JeongMin, Byoung Koun
Issue Date
1-2월-2016
Publisher
ELSEVIER SCIENCE BV
Keywords
CO2 electro-reduction; Gold catalysts; Ebeam deposition
Citation
CATALYSIS TODAY, v.260, pp.107 - 111
Indexed
SCIE
SCOPUS
Journal Title
CATALYSIS TODAY
Volume
260
Start Page
107
End Page
111
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/89573
DOI
10.1016/j.cattod.2015.05.017
ISSN
0920-5861
Abstract
CO2 electro-reduction is a promising method for sustainable production of carbon fuels as well as valuable chemicals. Herein, we investigated a direct electro-catalytic CO2 conversion to CO by nanostructured gold catalysts from the small nanoparticles to aggregated clusters to layered film. The selectivity of CO formation was found to increase as the gold amount increased and it reached a saturation point of 78% (-0.59 V vs. RHE) at the morphological transition from aggregated cluster to layered film. Furthermore, the similar to 4 nm gold nanoparticle exhibited a remarkable CO formation mass activity value at 166.1 A/g (-0.59 V vs. RHE). (C) 2015 Elsevier B.V. All rights reserved.
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