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

doi:10.1021/acsami.5b06189

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

GREEN SCHOOL (Graduate School of Energy and Environment)

Research output: Contribution to journal › Article › peer-review

85 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 language	English
Pages (from-to)	24550-24555
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	7
Issue number	44
DOIs	https://doi.org/10.1021/acsami.5b06189
Publication status	Published - 2015 Nov 11

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

Keywords

CoO
OER
chemical solution deposition
electrocatalyst
water splitting

ASJC Scopus subject areas

General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsami.5b06189

Cite this

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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.",

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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

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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.

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