C@TiO2 nanocomposites with impressive electrochemical performances as anode material for lithium-ion batteries

Chen, Jin; Li, Yong; Mu, Jiechen; Zhang, Yufei; Yu, Zuoyang; Han, Kairu; Zhang, Lipeng

doi:10.1016/j.jallcom.2018.01.359

Cited by 30 publications

(8 citation statements)

References 32 publications

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“…Chen et al implemented a C@TiO 2 nanocomposite as the anode material for lithium-ion batteries, which utilize the esterification of ethylene glycol with acetic acid in the presence of potassium chloride. Li-ion batteries utilizing the C@TiO 2 nanocomposite anode exhibited excellent rate performance and specific capacity (237 mA h −1 g −1 ), and a coulomb efficiency (CE) of approximately 100% after 100 cycles [139]. Su et al synthesized anatase TiO 2 via a template approach for use as the anode in Na-ion batteries; use of the template-synthesized TiO 2 resulted in better battery performance in comparison to that achieved when amorphous and rutile TiO 2 was used as the anode material.…”

Section: Solar Batteriesmentioning

confidence: 99%

Titanium Dioxide: From Engineering to Applications

et al. 2019

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Titanium dioxide (TiO2) nanomaterials have garnered extensive scientific interest since 1972 and have been widely used in many areas, such as sustainable energy generation and the removal of environmental pollutants. Although TiO2 possesses the desired performance in utilizing ultraviolet light, its overall solar activity is still very limited because of a wide bandgap (3.0–3.2 eV) that cannot make use of visible light or light of longer wavelength. This phenomenon is a deficiency for TiO2 with respect to its potential application in visible light photocatalysis and photoelectrochemical devices, as well as photovoltaics and sensors. The high overpotential, sluggish migration, and rapid recombination of photogenerated electron/hole pairs are crucial factors that restrict further application of TiO2. Recently, a broad range of research efforts has been devoted to enhancing the optical and electrical properties of TiO2, resulting in improved photocatalytic activity. This review mainly outlines state-of-the-art modification strategies in optimizing the photocatalytic performance of TiO2, including the introduction of intrinsic defects and foreign species into the TiO2 lattice, morphology and crystal facet control, and the development of unique mesocrystal structures. The band structures, electronic properties, and chemical features of the modified TiO2 nanomaterials are clarified in detail along with details regarding their photocatalytic performance and various applications.

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Section: Solar Batteriesmentioning

confidence: 99%

Titanium Dioxide: From Engineering to Applications

et al. 2019

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“…It is because of the permanent structural variation of the NTF electrodes in the initial lithiation. The CV curves coincide in the subsequent two cycles, demonstrating the stabilization of active materials after the initial lithiation and delithiation reactions Figures d–f and S4c,d show galvanostatic charge–discharge curves of the different cells between a potential of 1.0 and 3.0 V at a current density of 0.2 A g –1 .…”

Section: Resultsmentioning

confidence: 76%

Ultrafast and Stable Lithium Storage Enabled by the Electric Field Effect in Layer-Structured Tablet-Like NH₄TiOF₃ Mesocrystals

Liu

Jiang

Chen

et al. 2020

ACS Appl. Mater. Interfaces

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Design and synthesis of advanced electrode materials with fast and stable ion storage are of importance for energy storage applications. Herein, we propose that introducing the heterogeneous interface in layer-structured mesocrystals is an efficient way to greatly improve the rate capability and cycle stability of lithium-ion battery (LIB) devices. NH 4 TiOF 3 mesocrystals were employed as a typical model system to demonstrate the idea. The NH 4 TiOF 3 mesocrystals were obtained via the hydrothermal reaction, and the NH 4 TiOF 3 /TiO 2 interfaces were generated through calcining at different temperatures under an argon atmosphere. Phase composition, microstructure, and chemical analyses show that the as-prepared NH 4 TiOF 3 mesocrystals possess "tablet-like" morphology, and the formation of the NH 4 TiOF 3 /TiO 2 interface can be controlled by the calcination temperature. When evaluated as the anode for LIBs, the optimized sample (NH 4 TiOF 3 calcined at 250 °C, NTF-250) shows excellent, fast, and stable lithium storage properties. Specifically, the NTF-250 electrode holds a reversible capacity of 159.5 mA h g −1 after 200 cycles at 0.2 A g −1 . At a high current density of 20 A g −1 , the electrode still maintains a reversible capacity of 89.6 mA h g −1 and reaches a reversible capacity of 128.6 mA h g −1 at a current density of 1 A g −1 after 2000 cycles. Theoretical and experimental studies show that the synergistic effects of the heterogeneous NH 4 TiOF 3 /anatase TiO 2 interface in the layerstructured NH 4 TiOF 3 mesocrystals lead to the upgraded electrochemical properties. Especially, the local build-in electric field induced by the nonuniform distribution of charge across the NH 4 TiOF 3 /anatase TiO 2 interface facilitates the charge transport during the charging and discharging cycling. The current electrode design strategy paves a new way in boosting stable ion storage and thus is of great interest in energy storage and conversion.

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“…The cycle performance of TiO 2 @C3 composites is superior to that of the flower-like TiO 2 , which further demonstrates the contribution of the carbon layer to the better cycle performance. 38…”

Section: Resultsmentioning

confidence: 99%

Flower-like TiO₂ and TiO₂@C composites prepared via a one-pot solvothermal method as anode materials for lithium-ion batteries: higher capacity and excellent cycling stability

Shi

Jia

et al. 2023

Dalton Trans.

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C@TiO2 nanocomposites with impressive electrochemical performances as anode material for lithium-ion batteries

Cited by 30 publications

References 32 publications

Titanium Dioxide: From Engineering to Applications

Titanium Dioxide: From Engineering to Applications

Ultrafast and Stable Lithium Storage Enabled by the Electric Field Effect in Layer-Structured Tablet-Like NH₄TiOF₃ Mesocrystals

Flower-like TiO₂ and TiO₂@C composites prepared via a one-pot solvothermal method as anode materials for lithium-ion batteries: higher capacity and excellent cycling stability

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C@TiO2 nanocomposites with impressive electrochemical performances as anode material for lithium-ion batteries

Cited by 30 publications

References 32 publications

Titanium Dioxide: From Engineering to Applications

Titanium Dioxide: From Engineering to Applications

Ultrafast and Stable Lithium Storage Enabled by the Electric Field Effect in Layer-Structured Tablet-Like NH4TiOF3 Mesocrystals

Flower-like TiO2 and TiO2@C composites prepared via a one-pot solvothermal method as anode materials for lithium-ion batteries: higher capacity and excellent cycling stability

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Product

Resources

About

Ultrafast and Stable Lithium Storage Enabled by the Electric Field Effect in Layer-Structured Tablet-Like NH₄TiOF₃ Mesocrystals

Flower-like TiO₂ and TiO₂@C composites prepared via a one-pot solvothermal method as anode materials for lithium-ion batteries: higher capacity and excellent cycling stability