Oxygen plasma induced hierarchically structured gold electrocatalyst for selective reduction of carbon dioxide to carbon monoxide

Jai Hyun Koh, Hyo Sang Jeon, Michael Shincheon Jee, Eduardus Budi Nursanto, Hyunjoo Lee, Yun Jeong Hwang, Byoung Koun Min

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Electrochemical reduction of CO2 into C1 products with high energy density has attracted attention due to the demands for renewable energy sources. Herein, we demonstrate a selective electrocatalytic CO2 reduction system where the cathode consists of hierarchically structured Au islands catalysts. To be more specific, the Au islands were prepared by oxygen plasma treatment on the Au foil to increase the current density for the selective production of carbon monoxide with over 95% of faradaic efficiency. Faradaic efficiency, production rate, and the onset potential for CO2 reduction were significantly improved by the expanded surface area compared with a polycrystalline Au electrode. Furthermore, the performance of CO2 reduction to CO was enhanced by adding ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) which has high CO2-capture ability and catalytic activity. On the other hand, the rate-determining step of the Au electrode for the CO production determined by Tafel plots was found to be consistent with the initial one electron transfer step to form the surface-adsorbed CO2- intermediates regardless of the application of hierarchically structured catalyst and ionic liquid in the CO2 reduction system.

Original languageEnglish
Pages (from-to)883-889
Number of pages7
JournalJournal of Physical Chemistry C
Volume119
Issue number2
DOIs
Publication statusPublished - 2015 Jan 15

Fingerprint

electrocatalysts
Electrocatalysts
oxygen plasma
Carbon Monoxide
Carbon Dioxide
Carbon monoxide
Gold
carbon monoxide
carbon dioxide
Carbon dioxide
gold
Oxygen
Plasmas
Ionic Liquids
Ionic liquids
catalysts
renewable energy
electrodes
energy sources
liquids

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Oxygen plasma induced hierarchically structured gold electrocatalyst for selective reduction of carbon dioxide to carbon monoxide. / Koh, Jai Hyun; Jeon, Hyo Sang; Jee, Michael Shincheon; Nursanto, Eduardus Budi; Lee, Hyunjoo; Hwang, Yun Jeong; Min, Byoung Koun.

In: Journal of Physical Chemistry C, Vol. 119, No. 2, 15.01.2015, p. 883-889.

Research output: Contribution to journalArticle

Koh, Jai Hyun ; Jeon, Hyo Sang ; Jee, Michael Shincheon ; Nursanto, Eduardus Budi ; Lee, Hyunjoo ; Hwang, Yun Jeong ; Min, Byoung Koun. / Oxygen plasma induced hierarchically structured gold electrocatalyst for selective reduction of carbon dioxide to carbon monoxide. In: Journal of Physical Chemistry C. 2015 ; Vol. 119, No. 2. pp. 883-889.
@article{45be1432f2e64a8ba171b1702629e533,
title = "Oxygen plasma induced hierarchically structured gold electrocatalyst for selective reduction of carbon dioxide to carbon monoxide",
abstract = "Electrochemical reduction of CO2 into C1 products with high energy density has attracted attention due to the demands for renewable energy sources. Herein, we demonstrate a selective electrocatalytic CO2 reduction system where the cathode consists of hierarchically structured Au islands catalysts. To be more specific, the Au islands were prepared by oxygen plasma treatment on the Au foil to increase the current density for the selective production of carbon monoxide with over 95{\%} of faradaic efficiency. Faradaic efficiency, production rate, and the onset potential for CO2 reduction were significantly improved by the expanded surface area compared with a polycrystalline Au electrode. Furthermore, the performance of CO2 reduction to CO was enhanced by adding ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) which has high CO2-capture ability and catalytic activity. On the other hand, the rate-determining step of the Au electrode for the CO production determined by Tafel plots was found to be consistent with the initial one electron transfer step to form the surface-adsorbed CO2•- intermediates regardless of the application of hierarchically structured catalyst and ionic liquid in the CO2 reduction system.",
author = "Koh, {Jai Hyun} and Jeon, {Hyo Sang} and Jee, {Michael Shincheon} and Nursanto, {Eduardus Budi} and Hyunjoo Lee and Hwang, {Yun Jeong} and Min, {Byoung Koun}",
year = "2015",
month = "1",
day = "15",
doi = "10.1021/jp509967m",
language = "English",
volume = "119",
pages = "883--889",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "2",

}

TY - JOUR

T1 - Oxygen plasma induced hierarchically structured gold electrocatalyst for selective reduction of carbon dioxide to carbon monoxide

AU - Koh, Jai Hyun

AU - Jeon, Hyo Sang

AU - Jee, Michael Shincheon

AU - Nursanto, Eduardus Budi

AU - Lee, Hyunjoo

AU - Hwang, Yun Jeong

AU - Min, Byoung Koun

PY - 2015/1/15

Y1 - 2015/1/15

N2 - Electrochemical reduction of CO2 into C1 products with high energy density has attracted attention due to the demands for renewable energy sources. Herein, we demonstrate a selective electrocatalytic CO2 reduction system where the cathode consists of hierarchically structured Au islands catalysts. To be more specific, the Au islands were prepared by oxygen plasma treatment on the Au foil to increase the current density for the selective production of carbon monoxide with over 95% of faradaic efficiency. Faradaic efficiency, production rate, and the onset potential for CO2 reduction were significantly improved by the expanded surface area compared with a polycrystalline Au electrode. Furthermore, the performance of CO2 reduction to CO was enhanced by adding ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) which has high CO2-capture ability and catalytic activity. On the other hand, the rate-determining step of the Au electrode for the CO production determined by Tafel plots was found to be consistent with the initial one electron transfer step to form the surface-adsorbed CO2•- intermediates regardless of the application of hierarchically structured catalyst and ionic liquid in the CO2 reduction system.

AB - Electrochemical reduction of CO2 into C1 products with high energy density has attracted attention due to the demands for renewable energy sources. Herein, we demonstrate a selective electrocatalytic CO2 reduction system where the cathode consists of hierarchically structured Au islands catalysts. To be more specific, the Au islands were prepared by oxygen plasma treatment on the Au foil to increase the current density for the selective production of carbon monoxide with over 95% of faradaic efficiency. Faradaic efficiency, production rate, and the onset potential for CO2 reduction were significantly improved by the expanded surface area compared with a polycrystalline Au electrode. Furthermore, the performance of CO2 reduction to CO was enhanced by adding ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) which has high CO2-capture ability and catalytic activity. On the other hand, the rate-determining step of the Au electrode for the CO production determined by Tafel plots was found to be consistent with the initial one electron transfer step to form the surface-adsorbed CO2•- intermediates regardless of the application of hierarchically structured catalyst and ionic liquid in the CO2 reduction system.

UR - http://www.scopus.com/inward/record.url?scp=84949116516&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84949116516&partnerID=8YFLogxK

U2 - 10.1021/jp509967m

DO - 10.1021/jp509967m

M3 - Article

AN - SCOPUS:84949116516

VL - 119

SP - 883

EP - 889

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 2

ER -