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Synthesis of Three Dimensional Carbon Nanostructure Foams for Supercapacitors

  • Wei Wang (a1) (a2), Shirui Guo (a3), Isaac Ruiz (a2), Mihrimah Ozkan (a3) (a2) and Cengiz S. Ozkan (a1) (a4)...

Abstract

In this work, we demonstrated the growth of three dimensional graphene/carbon nanotubes hybrid carbon nanostructures on metal foam through a one-step chemical vapor deposition (CVD). The as-grown three dimensional carbon nanostructure foams can be potentially used as the electrodes of energy storage devices such as supercapacitors and batteries. During the CVD process, the carbon nanostructures are grown on highly porous nickel foam to form a high surface area 3-D carbon nanostructure by introducing a mixture precursor gases (H2, C2H2). The surface morphology was investigated by scanning electron microscopy (SEM) and the results demonstrated relatively homogeneous and densely packed 3-D carbon nanostructure. The quality was characterized by Raman spectroscopy. To further increase the capacitive capability the supercapacitors were fabricated based on the electrodes of carbon nanostructure foam and cyclic voltammetry, charge-discharge, and electrochemical impedance spectroscopy (EIS) were conducted to determine their performance.

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Keywords

Synthesis of Three Dimensional Carbon Nanostructure Foams for Supercapacitors

  • Wei Wang (a1) (a2), Shirui Guo (a3), Isaac Ruiz (a2), Mihrimah Ozkan (a3) (a2) and Cengiz S. Ozkan (a1) (a4)...

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