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High entropy oxides for reversible energy storage

Nature communications, 2018-08, Vol.9 (1), p.3400-9, Article 3400 [Peer Reviewed Journal]

2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2018 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-018-05774-5 ;PMID: 30143625

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Title:
High entropy oxides for reversible energy storage
Author: Sarkar, Abhishek ; Velasco, Leonardo ; Wang, Di ; Wang, Qingsong ; Talasila, Gopichand ; de Biasi, Lea ; Kübel, Christian ; Brezesinski, Torsten ; Bhattacharya, Subramshu S ; Hahn, Horst ; Breitung, Ben
Subjects: Cations ; Chemical composition ; Crystal structure ; Electrochemical analysis ; Electrochemistry ; Energy storage ; Entropy ; Lithium ; Metal ions ; Oxides ; Properties (attributes) ; Stabilization ; Storage capacity
Is Part Of: Nature communications, 2018-08, Vol.9 (1), p.3400-9, Article 3400
Description: In recent years, the concept of entropy stabilization of crystal structures in oxide systems has led to an increased research activity in the field of "high entropy oxides". These compounds comprise the incorporation of multiple metal cations into single-phase crystal structures and interactions among the various metal cations leading to interesting novel and unexpected properties. Here, we report on the reversible lithium storage properties of the high entropy oxides, the underlying mechanisms governing these properties, and the influence of entropy stabilization on the electrochemical behavior. It is found that the stabilization effect of entropy brings significant benefits for the storage capacity retention of high entropy oxides and greatly improves the cycling stability. Additionally, it is observed that the electrochemical behavior of the high entropy oxides depends on each of the metal cations present, thus providing the opportunity to tailor the electrochemical properties by simply changing the elemental composition.
Publisher: England: Nature Publishing Group
Language: English
Identifier: ISSN: 2041-1723
EISSN: 2041-1723
DOI: 10.1038/s41467-018-05774-5
PMID: 30143625
Source: PubMed Central
ProQuest Central
DOAJ Directory of Open Access Journals

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High entropy oxides for reversible energy storage

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