Hexagonal Sphericon Hematite with High Performance for Water Oxidation

Odedairo, Taiwo, Yan, Xuecheng, Yao, Xiangdong, Ostrikov, Kostya Ken and Zhu, Zhonghua (2017) Hexagonal Sphericon Hematite with High Performance for Water Oxidation. Advanced Materials (Deerfield Beach, Fla.), 29 46: 1-6. doi:10.1002/adma.201703792


Author Odedairo, Taiwo
Yan, Xuecheng
Yao, Xiangdong
Ostrikov, Kostya Ken
Zhu, Zhonghua
Title Hexagonal Sphericon Hematite with High Performance for Water Oxidation
Journal name Advanced Materials (Deerfield Beach, Fla.)   Check publisher's open access policy
ISSN 1521-4095
0935-9648
Publication date 2017-10-20
Year available 2017
Sub-type Article (original research)
DOI 10.1002/adma.201703792
Open Access Status Not yet assessed
Volume 29
Issue 46
Start page 1
End page 6
Total pages 6
Place of publication Weinheim, Germany
Publisher Wiley-VCH Verlag
Language eng
Subject 2500 Materials Science
2211 Mechanics of Materials
2210 Mechanical Engineering
Abstract A cost-effective hexagonal sphericon hematite with predominant (110) facets for the oxygen evolution reaction (OER) is demonstrated. Sequential incorporation of near-atomic uniformly distributed Ce species and Ni nanoparticles into selected sites of the hematite induces a complex synergistic integration phenomenon that enhances the overall catalytic OER performance. This cheap hexagonal sphericon hematite (Fe ≈ 98%) only needs a small overpotential (η) of 0.34 V to reach 10 mA cm(-2) , superior to commercial IrO2 and more expensive Co-, Ni-, and Li-based electrocatalysts.
Keyword ceria
hematite
hexagonal sphericon
oxygen evolution
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
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Created: Wed, 25 Oct 2017, 21:01:05 EST