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Energies 2017, 10(11), 1787; https://doi.org/10.3390/en10111787

A Critical Review of Spinel Structured Iron Cobalt Oxides Based Materials for Electrochemical Energy Storage and Conversion

1
Department of Chemistry, Western Kentucky University, Bowling Green, KY 42101, USA
2
College of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
*
Author to whom correspondence should be addressed.
Received: 1 October 2017 / Revised: 29 October 2017 / Accepted: 30 October 2017 / Published: 6 November 2017
(This article belongs to the Section Energy Storage and Application)
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Abstract

Iron cobalt oxides, such as typical FeCo2O4 and CoFe2O4, are two spinel structured transitional metal oxide materials with excellent electrochemical performance. As the electrodes, they have been widely applied in the current energy storage and conversion processes such as supercapacitors, Lithium-ion batteries and fuel cells. Based on synthesis approaches and controlled conditions, these two materials exhibited broad morphologies and nanostructures and thus distinct electrochemical performance. Some of them have shown promising applications as electrodes in energy storage and conversion. The incorporation with other materials to form composites further improved their performance. This review briefly summarized the recent applications of FeCo2O4 and CoFe2O4 in energy storage and conversion, current understandings on mechanisms and especially the relevance of morphologies and structures and composites to electrochemical performance. Some recommendations were finally put forward addressing current issues and future prospects on electrodes of FeCo2O4 and CoFe2O4 based materials in energy storage and conversion, implying there was still space to further optimize their performance. View Full-Text
Keywords: spinel iron cobalt oxides; composites; nanostructure and nanoengineering; electrochemistry; energy storage and conversion. spinel iron cobalt oxides; composites; nanostructure and nanoengineering; electrochemistry; energy storage and conversion.
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Gao, H.; Liu, S.; Li, Y.; Conte, E.; Cao, Y. A Critical Review of Spinel Structured Iron Cobalt Oxides Based Materials for Electrochemical Energy Storage and Conversion. Energies 2017, 10, 1787.

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