TiO2 nanotube layers decorated with Al2O3/MoS2/Al2O3 as anode for li-ion microbatteries with enhanced cycling stability

Tesfaye AT, Sopha H, Ayobi A, Zazpe R, Rodriguez-Pereira J, Michalicka J, Hromadko L, Ng SW, Spotz Z, Prikryl J, Macak JM, Djenizian T (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Nanomaterials MDPI

Book Volume: 10

Article Number: 953

Journal Issue: 5

DOI: 10.3390/nano10050953

Abstract

TiO2 nanotube layers (TNTs) decorated with Al2O3/MoS2/Al2O3 are 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 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 three 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).

Authors with CRIS profile

Siow Woon Ng

Involved external institutions

Institut Mines-Télécom (IMT) FR France (FR) University of Pardubice CZ Czech Republic (CZ) Brno University of Technology (BUT) / Vysoké učení technické v Brně (VUT) CZ Czech Republic (CZ)

How to cite

APA:

Tesfaye, A.T., Sopha, H., Ayobi, A., Zazpe, R., Rodriguez-Pereira, J., Michalicka, J.,... Djenizian, T. (2020). TiO2 nanotube layers decorated with Al2O3/MoS2/Al2O3 as anode for li-ion microbatteries with enhanced cycling stability. Nanomaterials, 10(5). https://doi.org/10.3390/nano10050953

MLA:

Tesfaye, Alexander Teklit, et al. "TiO2 nanotube layers decorated with Al2O3/MoS2/Al2O3 as anode for li-ion microbatteries with enhanced cycling stability." Nanomaterials 10.5 (2020).

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