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Photoelectrochemical and theoretical investigations of spinel type ferrites (M x Fe 3− x O 4 ) for water splitting: a mini-review

Photoelectrochemical and theoretical investigations of spinel type ferrites (M x Fe 3− x O 4 )... Abstract. Solar-assisted water splitting using photoelectrochemical cells (PECs) is one of the promising pathways for the production of hydrogen for renewable energy storage. The nature of the semiconductor material is the primary factor that controls the overall energy conversion efficiency. Finding semiconductor materials with appropriate semiconducting properties (stability, efficient charge separation and transport, abundant, visible light absorption) is still a challenge for developing materials for solar water splitting. Owing to the suitable bandgap for visible light harvesting and the abundance of iron-based oxide semiconductors, they are promising candidates for PECs and have received much research attention. Spinel ferrites are subclasses of iron oxides derived from the classical magnetite ( Fe II Fe 2 III O 4 ) in which the Fe II is replaced by one (some cases two) additional divalent metals. They are generally denoted as M x Fe 3 − x O 4 ( M = Ca , Mg, Zn, Co, Ni, Mn, and so on) and mostly crystallize in spinel or inverse spinel structures. In this mini review, we present the current state of research in spinel ferrites as photoelectrode materials for PECs application. Strategies to improve energy conversion efficiency (nanostructuring, surface modification, and heterostructuring) will be presented. Furthermore, theoretical findings related to the electronic structure, bandgap, and magnetic properties will be presented and compared with experimental results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Photonics for Energy SPIE

Photoelectrochemical and theoretical investigations of spinel type ferrites (M x Fe 3− x O 4 ) for water splitting: a mini-review

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Publisher
SPIE
Copyright
© The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Subject
Special Section on Solar Fuels Photocatalysis; Paper
ISSN
1947-7988
eISSN
1947-7988
DOI
10.1117/1.JPE.7.012009
Publisher site
See Article on Publisher Site

Abstract

Abstract. Solar-assisted water splitting using photoelectrochemical cells (PECs) is one of the promising pathways for the production of hydrogen for renewable energy storage. The nature of the semiconductor material is the primary factor that controls the overall energy conversion efficiency. Finding semiconductor materials with appropriate semiconducting properties (stability, efficient charge separation and transport, abundant, visible light absorption) is still a challenge for developing materials for solar water splitting. Owing to the suitable bandgap for visible light harvesting and the abundance of iron-based oxide semiconductors, they are promising candidates for PECs and have received much research attention. Spinel ferrites are subclasses of iron oxides derived from the classical magnetite ( Fe II Fe 2 III O 4 ) in which the Fe II is replaced by one (some cases two) additional divalent metals. They are generally denoted as M x Fe 3 − x O 4 ( M = Ca , Mg, Zn, Co, Ni, Mn, and so on) and mostly crystallize in spinel or inverse spinel structures. In this mini review, we present the current state of research in spinel ferrites as photoelectrode materials for PECs application. Strategies to improve energy conversion efficiency (nanostructuring, surface modification, and heterostructuring) will be presented. Furthermore, theoretical findings related to the electronic structure, bandgap, and magnetic properties will be presented and compared with experimental results.

Journal

Journal of Photonics for Energy – SPIE

Published: Jan 1, 2017

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