Crystalline IrO2-decorated TiO2 nanofiber scaffolds for robust and sustainable solar water oxidation

Won-Hee Ryu; Yang Woo Lee; Yoon Sung Nam; Doo-Young Youn; Chan Beum Park; Il-Doo Kim

doi:10.1039/C4TA00339J

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Crystalline IrO₂-decorated TiO₂ nanofiber scaffolds for robust and sustainable solar water oxidation†

Won-Hee Ryu,‡§^a Yang Woo Lee,‡^a Yoon Sung Nam,^a Doo-Young Youn,^a Chan Beum Park*^a and Il-Doo Kim*^a

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* Corresponding authors

^a Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea
E-mail: idkim@kaist.ac.kr, park3340@kaist.ac.kr
Fax: +82-42-350-3310
Tel: +82-42-350-3326

Abstract

Crystalline IrO₂ nanoparticles immobilized on TiO₂ nanofiber scaffolds as robust and sustainable oxygen evolving catalysts showed a high turnover number (TON: 322) and excellent recyclability (90% O₂ evolving after 10 cycles). The effects of the decoration position, crystallite size, loading amount of IrO₂, and TiO₂ scaffolds were investigated.

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Article information

DOI: https://doi.org/10.1039/C4TA00339J
Article type: Communication
Submitted: 20 Jan 2014
Accepted: 29 Jan 2014
First published: 29 Jan 2014

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J. Mater. Chem. A, 2014,2, 5610-5615

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Crystalline IrO₂-decorated TiO₂ nanofiber scaffolds for robust and sustainable solar water oxidation

W. Ryu, Y. W. Lee, Y. S. Nam, D. Youn, C. B. Park and I. Kim, J. Mater. Chem. A, 2014, 2, 5610 DOI: 10.1039/C4TA00339J

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Journal of Materials Chemistry A