TiO2 Nanotube Layers Decorated with Al2O3/MoS2/Al2O3 as Anode for Li-ion Microbatteries with Enhanced Cycling Stability
ČlánekOtevřený přístuppeer-reviewedpostprintDatum publikování
2020-05-17
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MDPI
Abstrakt
TiO2 nanotube layers (TNTs) decorated with Al2O3/MoS2/Al2O3 is investigated as a negative electrode for 3D Li-ion microbatteries. Homogenous nanosheets decoration of MoS2, sandwiched between Al2O3 coatings within self-supporting TNTs was carried out using atomic layer deposition (ALD) process. The structure, morphology, and the electrochemical performance of the Al2O3/MoS2/Al2O3-decorated TNTs were studied using scanning transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and chronopotentiometry. Al2O3/MoS2/Al2O3-decorated TNTs deliver an areal capacity almost 3 times higher than that obtained for MoS2-decorated TNTs and as-prepared TNTs after 100 cycles at 1C. Moreover, stable and high discharge capacity (414 µAh cm-2) has been obtained after 200 cycles even at very fast kinetics (3C).
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2079-4991
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EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL
Zdrojový dokument
Nanomaterials 2020, 10(5)
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https://www.mdpi.com/2079-4991/10/5/953
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Attribution 3.0 Czech Republic
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TiO2 nanotube, MoS2, Al2O3, Atomic Layer Deposition, Li-ion microbatteries
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Except where otherwised noted, this item's license is described as Attribution 3.0 Czech Republic