In-situ preparation of titania/graphene nanocomposite via a facile sol–gel strategy: A promising anodic material for Li-ion batteries

[Display omitted] •Synthesis of titania/graphene (TiO2@Gr) nanocomposite using scalable in-situ sol–gel process.•Investigation of physiochemical properties of TiO2@Gr nanocomposite using characterization tools.•An insight towards the electrochemical performance of TiO2@Gr nanocomposites.•TiO2@Gr5 sh...

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Bibliographic Details
Published in:Materials letters 2021-10, Vol.300, p.130143, Article 130143
Main Authors: Khanna, Sakshum, Marathey, Priyanka, Vanpariya, Anjali, Paneliya, Sagar, Mukhopadhyay, Indrajit
Format: Article
Language:English
Subjects:
Anatase
Anodes
Discharge
Electrochemical analysis
Electrochemical performance
Electrode materials
Energy storage
Graphene
Heterostructures
Lithium-ion batteries
Materials science
Nanocomposite
Nanocomposites
Nanoparticles
Rechargeable batteries
Sol-gel processes
Titania
Titanium dioxide
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Summary:[Display omitted] •Synthesis of titania/graphene (TiO2@Gr) nanocomposite using scalable in-situ sol–gel process.•Investigation of physiochemical properties of TiO2@Gr nanocomposite using characterization tools.•An insight towards the electrochemical performance of TiO2@Gr nanocomposites.•TiO2@Gr5 showed improved electrochemical performance and good stability as compare to pristine TiO2. In the current work, a simple and scalable route has been adapted to synthesize TiO2@Gr nanocomposites using in-situ sol–gel method. A systematic study of anatase TiO2 and TiO2@Gr nanocomposite based electrodes has been carried out to investigate their structural and morphological properties using XRD, Raman profile, FESEM and TEM. The results confirmed the insertion of TiO2 nanoparticles in graphene sheets. Further, the electrochemical performance of the as-prepared electrodes has been investigated using galvanostatic charge/discharge profile. Benefiting from the unique heterostructure, as-prepared TiO2@Gr composite showed high discharge capacity (~203 mAhg−1 at 0.2C) and stability with columbic efficiency ~97.3% as compare to anatase TiO2 (~125 mAhg−1 at 0.2C), which makes it a potential anodic materials for Li ion batteries (LIBs).
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2021.130143