Simple Chemical Solution Deposition of Co3O4 Thin Film Electrocatalyst for Oxygen Evolution Reaction

Hyo Sang Jeon, Michael Shincheon Jee, Haeri Kim, Su Jin Ahn, Yun Jeong Hwang, Byoung Koun Min

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Oxygen evolution reaction (OER) is the key reaction in electrochemical processes, such as water splitting, metal-air batteries, and solar fuel production. Herein, we developed a facile chemical solution deposition method to prepare a highly active Co3O4 thin film electrode for OER, showing a low overpotential of 377 mV at 10 mA/cm2 with good stability. An optimal loading of ethyl cellulose additive in a precursor solution was found to be essential for the morphology control and thus its electrocatalytic activity. Our results also show that the distribution of Co3O4 nanoparticle catalysts on the substrate is crucial in enhancing the inherent OER catalytic performance.

Original languageEnglish
Pages (from-to)24550-24555
Number of pages6
JournalACS Applied Materials and Interfaces
Volume7
Issue number44
DOIs
Publication statusPublished - 2015 Nov 11

Fingerprint

Electrocatalysts
Oxygen
Thin films
Cellulose
Metals
Nanoparticles
Electrodes
Catalysts
Water
Substrates
Air

Keywords

  • chemical solution deposition
  • CoO
  • electrocatalyst
  • OER
  • water splitting

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Simple Chemical Solution Deposition of Co3O4 Thin Film Electrocatalyst for Oxygen Evolution Reaction. / Jeon, Hyo Sang; Jee, Michael Shincheon; Kim, Haeri; Ahn, Su Jin; Hwang, Yun Jeong; Min, Byoung Koun.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 44, 11.11.2015, p. 24550-24555.

Research output: Contribution to journalArticle

Jeon, Hyo Sang ; Jee, Michael Shincheon ; Kim, Haeri ; Ahn, Su Jin ; Hwang, Yun Jeong ; Min, Byoung Koun. / Simple Chemical Solution Deposition of Co3O4 Thin Film Electrocatalyst for Oxygen Evolution Reaction. In: ACS Applied Materials and Interfaces. 2015 ; Vol. 7, No. 44. pp. 24550-24555.
@article{187772f2e44c463cb4b40066ec095f3a,
title = "Simple Chemical Solution Deposition of Co3O4 Thin Film Electrocatalyst for Oxygen Evolution Reaction",
abstract = "Oxygen evolution reaction (OER) is the key reaction in electrochemical processes, such as water splitting, metal-air batteries, and solar fuel production. Herein, we developed a facile chemical solution deposition method to prepare a highly active Co3O4 thin film electrode for OER, showing a low overpotential of 377 mV at 10 mA/cm2 with good stability. An optimal loading of ethyl cellulose additive in a precursor solution was found to be essential for the morphology control and thus its electrocatalytic activity. Our results also show that the distribution of Co3O4 nanoparticle catalysts on the substrate is crucial in enhancing the inherent OER catalytic performance.",
keywords = "chemical solution deposition, CoO, electrocatalyst, OER, water splitting",
author = "Jeon, {Hyo Sang} and Jee, {Michael Shincheon} and Haeri Kim and Ahn, {Su Jin} and Hwang, {Yun Jeong} and Min, {Byoung Koun}",
year = "2015",
month = "11",
day = "11",
doi = "10.1021/acsami.5b06189",
language = "English",
volume = "7",
pages = "24550--24555",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "44",

}

TY - JOUR

T1 - Simple Chemical Solution Deposition of Co3O4 Thin Film Electrocatalyst for Oxygen Evolution Reaction

AU - Jeon, Hyo Sang

AU - Jee, Michael Shincheon

AU - Kim, Haeri

AU - Ahn, Su Jin

AU - Hwang, Yun Jeong

AU - Min, Byoung Koun

PY - 2015/11/11

Y1 - 2015/11/11

N2 - Oxygen evolution reaction (OER) is the key reaction in electrochemical processes, such as water splitting, metal-air batteries, and solar fuel production. Herein, we developed a facile chemical solution deposition method to prepare a highly active Co3O4 thin film electrode for OER, showing a low overpotential of 377 mV at 10 mA/cm2 with good stability. An optimal loading of ethyl cellulose additive in a precursor solution was found to be essential for the morphology control and thus its electrocatalytic activity. Our results also show that the distribution of Co3O4 nanoparticle catalysts on the substrate is crucial in enhancing the inherent OER catalytic performance.

AB - Oxygen evolution reaction (OER) is the key reaction in electrochemical processes, such as water splitting, metal-air batteries, and solar fuel production. Herein, we developed a facile chemical solution deposition method to prepare a highly active Co3O4 thin film electrode for OER, showing a low overpotential of 377 mV at 10 mA/cm2 with good stability. An optimal loading of ethyl cellulose additive in a precursor solution was found to be essential for the morphology control and thus its electrocatalytic activity. Our results also show that the distribution of Co3O4 nanoparticle catalysts on the substrate is crucial in enhancing the inherent OER catalytic performance.

KW - chemical solution deposition

KW - CoO

KW - electrocatalyst

KW - OER

KW - water splitting

UR - http://www.scopus.com/inward/record.url?scp=84946921357&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84946921357&partnerID=8YFLogxK

U2 - 10.1021/acsami.5b06189

DO - 10.1021/acsami.5b06189

M3 - Article

VL - 7

SP - 24550

EP - 24555

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 44

ER -