Syntheses and characterization of graphene-metal oxide nanocomposites for energy storage applications

Terrence Xu, Mikhail L. Gordin, Donghai Wang

Research output: Contribution to journalConference article

Abstract

Graphite has been widely used in catalysis, combustion, and other energy-related technologies. Recent years see graphene, a mono-atomic layer carbon atoms derived from graphite, attracting great attention for its potential to improve performance in these applications due to its large surface area, high chemical stability, excellent electrical and mechanical properties, and potentially much lower manufacturing cost compared to nanostructures like carbon nanotubes. Here we will present the syntheses and characterization of graphene-metal oxide nanocomposites and their electrochemical performance in energy storage applications. The metal oxide nanoparticles were synthesized and simultaneously self-assembled with dispersed graphene into graphene-metal oxide nanocomposites. The nancomposites were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and other techniques. Conductivities were measured using impedance spectroscopy. Furthermore, when used as electrode materials in energy storage devices, the nanocomposites showed much-improved charge-discharge performance.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
StatePublished - Aug 25 2011
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: Mar 27 2011Mar 31 2011

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Graphite
Energy storage
Oxides
Graphene
Nanocomposites
Metals
Electron microscopes
Chemical stability
Catalysis
Nanostructures
Carbon nanotubes
Carbon Nanotubes
Electric properties
Spectroscopy
Nanoparticles
Scanning
X ray diffraction
Atoms
Mechanical properties
Electrodes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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abstract = "Graphite has been widely used in catalysis, combustion, and other energy-related technologies. Recent years see graphene, a mono-atomic layer carbon atoms derived from graphite, attracting great attention for its potential to improve performance in these applications due to its large surface area, high chemical stability, excellent electrical and mechanical properties, and potentially much lower manufacturing cost compared to nanostructures like carbon nanotubes. Here we will present the syntheses and characterization of graphene-metal oxide nanocomposites and their electrochemical performance in energy storage applications. The metal oxide nanoparticles were synthesized and simultaneously self-assembled with dispersed graphene into graphene-metal oxide nanocomposites. The nancomposites were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and other techniques. Conductivities were measured using impedance spectroscopy. Furthermore, when used as electrode materials in energy storage devices, the nanocomposites showed much-improved charge-discharge performance.",
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Syntheses and characterization of graphene-metal oxide nanocomposites for energy storage applications. / Xu, Terrence; Gordin, Mikhail L.; Wang, Donghai.

In: ACS National Meeting Book of Abstracts, 25.08.2011.

Research output: Contribution to journalConference article

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