Potassium mediated Co-Fe-based Prussian blue analogue architectures for aqueous potassium-ion storage

Prussian blue analogs (PBAs) with unique structure show great potential for aqueous potassium-ion batteries (AKIBs). Herein, K 2 Co[Fe(CN) 6 ] and KNi[Co(CN) 6 ] architectures are developed as the cathode candidates for AKIBs. Moreover, the reaction kinetics detection and DFT calculations are employ...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-07, Vol.57 (57), p.719-722
Main Authors: Wei, Xijun, Wei, Jiacheng, Song, Yingze, Wu, Donghai, Liu, Xu Dong, Chen, Houyang, Xiao, Peng, Zhang, Yunhuai
Format: Article
Language:English
Subjects:
Cobalt
Ion storage
Iron
Pigments
Potassium
Reaction kinetics
Rechargeable batteries
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Summary:Prussian blue analogs (PBAs) with unique structure show great potential for aqueous potassium-ion batteries (AKIBs). Herein, K 2 Co[Fe(CN) 6 ] and KNi[Co(CN) 6 ] architectures are developed as the cathode candidates for AKIBs. Moreover, the reaction kinetics detection and DFT calculations are employed to analyse the battery performances. K 2 Co[Fe(CN) 6 ] with rich potassium, two accessible one-electron redox property, ample active sites and good electrical conductivity is fabricated by a facile route, which exhibits good aqueous K + -ions storage performance.
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc01852c