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Low-temperature synthesis of Fe2(MoO4)3nanosheets: A cathode for sodium ion batteries with kinetics enhancement

Title
Low-temperature synthesis of Fe2(MoO4)3nanosheets: A cathode for sodium ion batteries with kinetics enhancement
Authors
Huu, Ha TranViswanath, N. S. M.Vu, Ngoc HungLee, Jong-WonIm, Won Bin
DGIST Authors
Huu, Ha Tran; Viswanath, N. S. M.; Vu, Ngoc Hung; Lee, Jong-Won; Im, Won Bin
Issue Date
2021-02
Citation
Nano Research
Type
Article
Article Type
Article; Early Access
Author Keywords
low-temperature synthesiscathodesodium ion batterieskineticsNa+ super ionic conductor (NASICON)
Keywords
CathodesCharge transferCost reductionEnvironmental impactHigh temperature applicationsIonic conduction in solidsIron compoundsLithium-ion batteriesLow temperature effectsSolid state reactionsSurface reactionsTemperatureThree dimensional stackingCharge transfer resistanceElectrochemical reactionsSodium-ion batteriesMetal ionsHigh specific capacityHigh temperature solid-state reactionLow temperature conditionsLow temperature synthesisSuper ionic conductorsMolybdenum compoundsMorphologyNanocrystalline materialsReaction kinetics
ISSN
1998-0124
Abstract
Sodium ion batteries (SIBs) are alternatives to lithium ion batteries (LIBs), and offer some significant benefits such as cost reduction and a lower environmental impact; however, to compete with LIBs, further research is required to improve the performance of SIBs. In this study, an orthorhombic Na super ionic conductor structural Fe2(MoO4)3 nanosheet with amorphous-crystalline core-shell alignment was synthesized using a facile low-temperature water-vapor-assisted solid-state reaction and applied as a cathode material for SIBs. The obtained material has a well-defined three-dimensional stacking structure, and exhibits a high specific capacity of 87.8 mAh·g−1 at a current density of 1 C = 91 mA·g−1 after 1,000 cycles, which is due to the considerable contribution of extra surface-related reaction such as the pseudo-capacitive process. This material shows significantly improved cycling and rated behavior as well as enhanced performance under high- and low-temperature conditions, as compared to the same materials prepared by the conventional high-temperature solid-state reaction. This enhancement is explained by the unique morphology in combination with the improved kinetics of the electrochemical reaction due to its lower charge transfer resistance and higher sodium ion conductivity. [Figure not available: see fulltext.]. © 2021, Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature.
URI
http://hdl.handle.net/20.500.11750/12976
DOI
10.1007/s12274-021-3323-1
Publisher
Tsinghua Univ Press
Related Researcher
  • Author Lee, Jong-Won Laboratory for Electrochemical Energy Materials and Interfaces
  • Research Interests 이차전지, 연료전지, 재료전기화학, 나노에너지소재
Files:
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Collection:
Department of Energy Science and EngineeringLaboratory for Electrochemical Energy Materials and Interfaces1. Journal Articles


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