UV-assisted synthesis of surface modified mesoporous TiO2/G microspheres and its electrochemical performances in lithium ion batteries

Tong, Xiaoling; Li, Jing; Li, Fuyun

doi:10.1016/j.apsusc.2016.09.094

Cited by 32 publications

(11 citation statements)

References 37 publications

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“…3), respectively. In addition, the coincidence degree of NiFe 2 O 4 @SiO 2 electrode CV curve is better than that of NiFe 2 O 4 electrode, which indicates that coated SiO 2 has a positive effect on the improved of NiFe 2 O 4 electrochemical properties . The cathodic peak of both electrodes is detected at 1.7 V from the decomposition of the SEI layer, which similar to the CV results from previous literature .…”

Section: Resultssupporting

confidence: 86%

A Core‐Shell NiFe₂O₄@SiO₂ Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

Qin

Wen

et al. 2019

ChemElectroChem

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Smart surface coatings composed of transition-metal oxides are shown to significantly improve the cycling performance of batteries. Currently, most studies are mainly focused on coating materials such as TiO 2 and carbon-based materials. However, these coating materials face significant challenges, including their low capacity and tedious processing. Herein, a simple and novel amorphous SiO 2 coating is successfully used on the surface of NiFe 2 O 4 to form a core-shell structure. When tested as an anode, it delivers a high initial discharge capacity of 2022.3 mAh g À 1 and retains a high specific capacity of 1224.6 mAh g À 1 after 100 cycles at a current density of 0.1 C. The superior performance of NiFe 2 O 4 @SiO 2 is mainly attributed to the SiO 2 coatings, which can provide a high capacity, alleviate drastic volume changes in NiFe 2 O 4 and form a stable solid electrolyte interphase (SEI) layer. The results demonstrated that SiO 2 can be used as a novel coating material to improve the cycling properties of metal oxide materials.

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Section: Resultssupporting

confidence: 86%

A Core‐Shell NiFe₂O₄@SiO₂ Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

Qin

Wen

et al. 2019

ChemElectroChem

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“…The chief aim is to enhance the electronic conductivity by producing different titania nanostructures to increase its capacity through the incorporation of selected metal oxides into its structure. Another approach is to combine or coat TiO 2 with carbonaceous materials or to introduce anionic or cationic dopants to form more open channels and active sites for Li ion transport [143][144][145][146][147][148][149].…”

Section: Titanium Dioxide Derivatives As Effective Electrode Materialsmentioning

confidence: 99%

“…Moreover, synthesis of this type of system can effectively improve their capacitive performance by creating products with excellent high-rate cycling ability and stability. The application of such hybrid materials as anodes in lithium-ion batteries should lead to charge redistribution in the lattice, facilitate the diffusion of Li + , and finally increase lattice defects and conductivity [145][146][147][148][149][150][151][152].…”

Section: Titanium Dioxide Derivatives As Effective Electrode Materialsmentioning

confidence: 99%

Advanced Hybrid Materials Based on Titanium Dioxide for Environmental and Electrochemical Applications

Siwińska-Stefańska¹,

Jesionowski²

2017

Titanium Dioxide

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Constant technological progress, as well as the pursuit of "friendly" technologies, leads to intensive work on the development of a new generation of advanced products with strictly defined, unique physicochemical properties dedicated to specific applications. This group of materials includes hybrids based on titanium dioxide and its derivatives, characterised with specific, well-defined physicochemical and structural properties, chiefly determined during their synthesis. Different properties of titania nanoparticles depend on their morphology, crystallite size, and crystalline structure. Nanocrystalline titanium dioxide can be synthesised via different methods, among which chemical precipitation, microemulsion method (inversed micelles), sol-gel process and hydrothermal crystallisation are the most important ones. That is why, a crucial part of the following chapter will be paid to characterisation of synthesis routes used for titanium dioxide and titania-based hybrid production. Furthermore, application of TiO 2-based materials, including mixed oxide systems as well as graphene oxide-based hybrids, in electrochemical (electrode material) and environmental (photocatalysis) aspects, will be described in detail.

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“…Zhou et al [12] reported Li 4 Ti 5 O 12 porous fibber which exhibited discharge capacity of 141 mAh g −1 at a highcurrentdensity of 20 C (1 C=175 mA g −1 ). Chen et al [13] synthesized fluoride doping Li 4 Titanium dioxide (TiO 2 ) is considered as a promising LIB material because of its considerable theoretical capacity (167-335 mAh g −1 ) and fast Li-ion insertion/extraction [16][17][18]. Additionally, dual-phase Li 4 Ti 5 O 12 /TiO 2 (LTO/TO) compounds have demonstrated that a combination of the two materials can improve electrochemical properties [19].…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis method for dual-phase Li₄Ti₅O₁₂/TiO₂ composites for high-stability lithium storage

Zhang

Bai

et al. 2020

Mater. Res. Express

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As a promising anode material, lithium titanate (Li 4 Ti 5 O 12 ) displays extremely stable cycling and high safety performance. Nevertheless, its application is hindered because of a low electron conductivity and low specific capacity. Herein, dual-phase Li 4 Ti 5 O 12 /TiO 2 (LTO/TO) was synthesized by a straightforward solvothermalmethod utilizing crystallized water of lithium hydroxide to hydrolyse tetrabutyl titanate at high temperature and pressure conditions. This work demonstrated that LTO/ TO composites have excellent electrochemical performance and indicated that the inherent defects of LTO can be improved by the decoration of TO. At a current density of 1.0 A g −1 (∼6 C), the discharge capacity of LTO/TO sample reached 197 mAh g −1 after 100 cycles, while LTO exhibited 180 mAh g −1 . It appears that nanostructure LTO/TO composites may shorten the diffusion distance of electrons and lithium ions.

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UV-assisted synthesis of surface modified mesoporous TiO2/G microspheres and its electrochemical performances in lithium ion batteries

Cited by 32 publications

References 37 publications

A Core‐Shell NiFe₂O₄@SiO₂ Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

A Core‐Shell NiFe₂O₄@SiO₂ Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

Advanced Hybrid Materials Based on Titanium Dioxide for Environmental and Electrochemical Applications

Solvothermal synthesis method for dual-phase Li₄Ti₅O₁₂/TiO₂ composites for high-stability lithium storage

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UV-assisted synthesis of surface modified mesoporous TiO2/G microspheres and its electrochemical performances in lithium ion batteries

Cited by 32 publications

References 37 publications

A Core‐Shell NiFe2O4@SiO2 Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

A Core‐Shell NiFe2O4@SiO2 Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

Advanced Hybrid Materials Based on Titanium Dioxide for Environmental and Electrochemical Applications

Solvothermal synthesis method for dual-phase Li4Ti5O12/TiO2 composites for high-stability lithium storage

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A Core‐Shell NiFe₂O₄@SiO₂ Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

A Core‐Shell NiFe₂O₄@SiO₂ Structure as a High‐Performance Anode Material for Lithium‐Ion Batteries

Solvothermal synthesis method for dual-phase Li₄Ti₅O₁₂/TiO₂ composites for high-stability lithium storage