Starbon®, a family of mesoporous carbonaceous materials, was recently developed at the University of York from polysaccharides (e.g. starch) [1,2]. The novelty and the advantages of these materials include cheap, green and renewable sources, low temperature carbonization processing, avoidance of harmful chemicals, and a tunability of the surface functionality from hydrophilic to hydrophobic. These properties make Starbon® an ideal candidate for applications in catalysis and material absorption . Recently the tunability of the properties of these materials has been successfully extended to their functional properties by ballmixing it with graphite before the carbonization process. This resulted in an enhanced nanocomposite material (see picture) that adds to the porosity of the mesoporous carbon the conductivity of the graphite nanoflakes. This material shows promising characteristics as electrode material in electrochemical double layer capacitors (EDLC or supercapacitor). Here we present an Electron Microscopy study of this enhanced composite material, by combining Electron Diffraction, Electron Energy Loss Spectroscopy and Aberration Corrected TEM/STEM Imaging in correlation with the physical and transport properties exhibited by the materials as electrodes for supercapacitors including I-V curves, Galvanostatic charge-discharge curves and charge retention measurements.
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Acknowledgments: P.S. gratefully acknowledges the Spanish Ministry, Economy and Competitivity (MINECO) for the concession of a Ramón y Cajal fellowship and a proyecto de I+D+I para jóvenes investigadores (MAT2014-59674-JIN).
To cite this abstract:Leonardo Lari, Zlatko Nedelkoski, Peter Shuttleworth, Gary Ellis, Vitaliy Budarin, James Clark, Vlado Lazarov; Characterization of nanodispersed graphite in mesoporous carbon for supercapacitor applications. The 16th European Microscopy Congress, Lyon, France. https://emc-proceedings.com/abstract/characterization-of-nanodispersed-graphite-in-mesoporous-carbon-for-supercapacitor-applications/. Accessed: June 15, 2019
EMC Abstracts - https://emc-proceedings.com/abstract/characterization-of-nanodispersed-graphite-in-mesoporous-carbon-for-supercapacitor-applications/