Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLi, Lanen_US
dc.contributor.authorNie, Pingen_US
dc.contributor.authorChen, Yuboen_US
dc.contributor.authorWang, Jieen_US
dc.identifier.citationLi, L., Nie, P., Chen, Y. & Wang, J. (2019). Novel acetic acid induced Na-rich Prussian blue nanocubes with iron defects as cathodes for sodium ion batteries. Journal of Materials Chemistry A, 7(19), 12134-12144.
dc.description.abstractThe Prussian blue cathode has great potential for use in sodium-ion batteries in view of its high gravimetric capacity, facile synthetic procedure and low cost. The main challenges for Prussian blue are the structural degradation caused by [Fe(CN)₆] vacancies and coordinated water in its lattice and low average voltage due to insufficient activation of low-spin FeLS(C) redox-couple reactions. Here, Na-enriched Prussian blue with low coordinated water and free [Fe(CN)₆] vacancies has been successfully synthesized by defect engineering, using acetic acid as an iron defect inducer. In particular, Na-rich Na₃.₂₇Fe₀.₃₅[Fe(CN)₆]·0.85H₂O nanocubes with hole centres, low amounts of coordinated water and free [Fe(CN)₆] vacancies exhibit a high specific capacity, impressive cycling stability and good coulombic efficiency. This Na-rich material shows a low charge-transfer resistance (201.1 Ω), a high Na+ apparent diffusion coefficient (3.56 × 10⁻¹¹cm²s⁻¹) and an additional capacity contribution at approximately 4.1 V, demonstrating the sufficient activation of low-spin FeLS(C) redox couples in Na-involved reactions. The Na₃.₂₇Fe₀.₃₅[Fe(CN)₆]·0.85H₂O cathode undergoes a reversible redox reaction, which converts the structure from cubic Na₂Fe₀.₃₅[Fe(CN)₆] to rhombohedral Na₃.₂₄Fe₀.₃₅[Fe(CN)₆]. More significantly, this work for the first time realizes the rational composition and architecture design of Prussian blue materials by defect engineering for a broad range of potential applications.en_US
dc.relation.ispartofJournal of Materials Chemistry Aen_US
dc.rights© 2019 The Royal Society of Chemistry. All rights reserved.en_US
dc.titleNovel acetic acid induced Na-rich Prussian blue nanocubes with iron defects as cathodes for sodium ion batteriesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.subject.keywordsAcetic Aciden_US
dc.description.acknowledgementThe work was supported by the National Natural Science Foundation of China (Grant number 21706135), the Natural Science Foundation of Jiangsu Province, China (Grant number BK20160920), the Key Project of Industry Prospect and Common Key Technologies of Science and Technology Department of Jiangsu Province (grant number BE2017008-2) and the Priority Academic Program Development of Jiangsu Higher Education Institutions. Also, the authors gratefully acknowledge the support from the Advanced Analysis and Testing Center of Nanjing Forestry University.en_US
item.fulltextNo Fulltext-
Appears in Collections:MSE Journal Articles

Page view(s)

Updated on Jan 23, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.