Novel synthesis and electrochemical characterization of nano-sized cellular Fe3O4 thin film

Kyeong Woo Chung; Kwang Bum Kim; Seong Ho Han; Hongkee Lee

doi:10.1149/1.1891627

Novel synthesis and electrochemical characterization of nano-sized cellular Fe₃O₄ thin film

Kyeong Woo Chung, Kwang Bum Kim, Seong Ho Han, Hongkee Lee

Department of Materials Science and Engineering

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

42 Citations (Scopus)

Abstract

This study reports the novel synthesis of nano-sized cellular Fe ₃O₄ thin film with high degrees of crystallinity and purity using an electrochemical deposition of green rust 2 (GR2) and its further oxidation. This technique is applicable to substrates with large surface areas of a few square centimeters or more without the aid of templates, high temperature, vacuum, or post-treatment. Cellular Fe₃O₄ thin film showed a rectangular cyclic voltammogram indicative of a typical capacitive behavior in 1 M Na₂SO₄ solution and showed a specific capacitance as high as 105 F/g, thereby demonstrating its promising potential as an electrode material for supercapacitors.

Original language	English
Pages (from-to)	A259-A262
Journal	Electrochemical and Solid-State Letters
Volume	8
Issue number	5
DOIs	https://doi.org/10.1149/1.1891627
Publication status	Published - 2005

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Materials Science(all)
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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10.1149/1.1891627

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AB - This study reports the novel synthesis of nano-sized cellular Fe 3O4 thin film with high degrees of crystallinity and purity using an electrochemical deposition of green rust 2 (GR2) and its further oxidation. This technique is applicable to substrates with large surface areas of a few square centimeters or more without the aid of templates, high temperature, vacuum, or post-treatment. Cellular Fe3O4 thin film showed a rectangular cyclic voltammogram indicative of a typical capacitive behavior in 1 M Na2SO4 solution and showed a specific capacitance as high as 105 F/g, thereby demonstrating its promising potential as an electrode material for supercapacitors.

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Novel synthesis and electrochemical characterization of nano-sized cellular Fe₃O₄ thin film

Abstract

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