Epitaxial Growth of Lattice-Mismatched Core-Shell TiO2@MoS2 for Enhanced Lithium-Ion Storage
Author | Dai, Rui |
Author | Zhang, Anqi |
Author | Pan, Zhichang |
Author | Al-Enizi, Abdullah M. |
Author | Elzatahry, Ahmed A. |
Author | Hu, Linfeng |
Author | Zheng, Gengfeng |
Available date | 2021-09-01T10:03:33Z |
Publication Date | 2016 |
Publication Name | Small |
Resource | Scopus |
Abstract | Core-shell structured nanohybrids are currently of significant interest due to their synergetic properties and enhanced performances. However, the restriction of lattice mismatch remains a severe obstacle for heterogrowth of various core-shells with two distinct crystal structures. Herein, a controlled synthesis of lattice-mismatched core-shell TiO2@MoS2 nano-onion heterostructures is successfully developed, using unilamellar Ti0.87O2 nanosheets as the starting material and the subsequent epitaxial growth of MoS2 on TiO2. The formation of these core-shell nano-onions is attributed to an amorphous layer-induced heterogrowth mechanism. The number of MoS2 layers can be well tuned from few to over ten layers, enabling layer-dependent synergistic effects. The core-shell TiO2@MoS2 nano-onion heterostructures exhibit significantly enhanced energy storage performance as lithium-ion battery anodes. The approach has also been extended to other lattice-mismatched systems such as TiO2@MoSe2, thus suggesting a new strategy for the growth of well-designed lattice-mismatched core-shell structures. A controlled synthesis of lattice-mismatched core-shell TiO2@MoS2 nano-onion heterostructures is developed, using unilamellar Ti0.87O2 nanosheets as the starting material and the subsequent epitaxial growth of MoS2 on TiO2. The formation of these core-shell nano-onions is attributed to an amorphous layer-induced heterogrowth mechanism. The core-shell TiO2@MoS2 nano-onion heterostructures exhibit significantly enhanced energy storage performance as lithium-ion battery anodes. 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Language | en |
Publisher | Wiley-VCH Verlag |
Subject | Anodes Energy storage Epitaxial growth Ions Lattice mismatch Layered semiconductors Lithium-ion batteries Molybdenum compounds Nanosheets Shells (structures) Storage (materials) Titanium dioxide Amorphous layer Core shell structure Lattice-mismatched Lithium storages Nano-onions Sulfur compounds |
Type | Article |
Pagination | 2792-2799 |
Issue Number | 20 |
Volume Number | 12 |
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Materials Science & Technology [299 items ]