Facile Fabrication of 3D SiO2@Graphene Aerogel Composites as Anode Material for Lithium Ion Batteries

Meng, Jingke; Cao, Yuan; Suo, Yang; Liu, Yushan; Jian-min, Zhang; Zheng, Xiu-Cheng

doi:10.1016/j.electacta.2015.07.141

Cited by 172 publications

(63 citation statements)

References 45 publications

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“…prepared hard carbon and nano‐SiO 2 composite with the specific capacity of 1675 mA h g −1 and stable cycle performance . 3D‐structured amorphous SiO 2 @graphene aerogel (SiO 2 @GA) composites were prepared by a one‐pot hydrothermal method with various porous structure, high rate capability and excellent cycle stability . Zhou et al.…”

Section: Introductionmentioning

confidence: 99%

SiO₂/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

et al. 2017

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The SiO2/carbon composite material used as a lithium‐ion battery (LIB) anode was synthesized by aerosol spraying a mixture of polyvinyl alcohol (PVA) solution and SiO2 nanoparticles, followed by coating polyacrylonitrile (PAN) on the SiO2/PVA surface and an annealing treatment at 800 °C. The as‐prepared SiO2/po‐C@C has a hollow core–shell structure. The hollow section contributes to accommodate the volume expansion of SiO2 nanoparticles; the skeleton of porous carbon in the core not only enhances the electronic conductivity, but also provides the lithium‐ion diffusion path; the PAN‐based carbon shell benefits for forming a stable solid electrolyte interphase (SEI) film. This core–shell structure could partly alleviate the pulverization of the SiO2/po‐C@C particles and also perform excellent electrochemical performances. Compared with the SiO2@C composite, the SiO2/po‐C@C composite possesses a high specific charge capacity of 669.8 mA h g−1 at a current density of 100 mA g−1 after 100 charge and discharge cycles with a high capacity retention of 98.6 %. Therefore, the SiO2/po‐C@C composite with a hollow core‐shell structure shows great potential as an anode material for future LIBs.

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Section: Introductionmentioning

confidence: 99%

SiO₂/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

et al. 2017

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“…In other words, these structures are composed of stacked multilayer graphene sheets with silica nanoparticles, which can be clearly seen in FESEM images [38,39].…”

Section: Resultsmentioning

confidence: 97%

Spray pyrolysis of graphene oxide based composite for optical and wettability applications

Alkhafaji

Khaleel

Miran

2020

Mater. Res. Express

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In this study, silica-graphene oxide nano-composites were prepared by sol-gel technique and deposited by spray pyrolysis method on glass substrate. The effect of changing the graphene/silica ratio on the optical properties and wetting of these nano-structures has been investigated. The structural and morphological properties of the thin films have been studied by x-ray diffraction spectroscopy (XRD), field emission scanning electron microscope (FESEM), energy dispersive x-ray spectroscopy (EDS) and atomic force microscope (AFM). XRD results show that silica structures present in the synthesized films exhibit amorphous character and there is a poor arrangement in graphene plates along their accumulation directions. The relationship between the contact angle of the water drop and the surface of thin films was analyzed by surface roughness. The results show that the contact angle is also decreased by decreasing the surface roughness. Absorption and transmittance spectra obtained from (UV-vis) of the studied films were used to compute and determine some optical parameters such as absorption coefficient, transmittance rate, optical gap, refractive index and extinction coefficient of the films. The calculated optical band gaps of films decrease by increase the silica contents in these structures.

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“…Graphene aerogels (GA) are ultra‐light solids with 3D network, high electrical conductivity, large surface area and pore volumes, suitable as electrodes in electrochemical power sources and storage devices including LIBs . The highly conductive nature and the porous architecture play a significant role in the facile lithium ions and electrons transport, providing additional pathways during lithiation/de‐lithiation process, enhancing high rate performance . In order to take advantages of these features, many researchers have attempted to include this category of graphene‐based materials as anodic electrodes in LIBs.…”

Section: Introductionmentioning

confidence: 99%

Graphene Aerogel Modified Carbon Paper as Anode for Lithium‐Ion Batteries

et al. 2020

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Carbon paper‐supported graphene aerogels are examined as anode electrodes for lithium‐ion batteries, employing a hydrothermal process and a freeze‐drying step. Triethylenetetramine (TETA) and o‐phenylenediamine (OPD) prove to promote graphene aerogel formation and its chemical bonding onto the surface of carbon paper. The electrochemical results demonstrate that the electrode treated with the former diamine has a remarkable rate capability with higher capacities as compared with the electrode treated with the latter diamine and better stability.

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Facile Fabrication of 3D SiO2@Graphene Aerogel Composites as Anode Material for Lithium Ion Batteries

Cited by 172 publications

References 45 publications

SiO₂/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

SiO₂/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

Spray pyrolysis of graphene oxide based composite for optical and wettability applications

Graphene Aerogel Modified Carbon Paper as Anode for Lithium‐Ion Batteries

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Facile Fabrication of 3D SiO2@Graphene Aerogel Composites as Anode Material for Lithium Ion Batteries

Cited by 172 publications

References 45 publications

SiO2/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

SiO2/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

Spray pyrolysis of graphene oxide based composite for optical and wettability applications

Graphene Aerogel Modified Carbon Paper as Anode for Lithium‐Ion Batteries

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Product

Resources

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SiO₂/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries

SiO₂/Carbon Composite Microspheres with Hollow Core–Shell Structure as a High‐Stability Electrode for Lithium‐Ion Batteries