Role of nanocrystalline domain size on the electrochemical double-layer capacitance of high edge density carbon nanostructures

Journal Article (Journal Article)

Nanostructured carbon materials, especially activated carbon, carbon nanotubes, and graphene, have been widely studied for supercapacitor applications. To maximize the efficacy of these materials for electrochemical energy storage, a detailed understanding of the relationship between the nanostructure of these materials and their performance as supercapacitors is required. A fundamental structural parameter obtained from the Raman spectra of these materials, the in-plane correlation length or nanocrystalline domain size, is found to correlate with the electrochemical capacitance, regardless of other morphological features. This correlation for a common nanostructural characteristic is believed to be the first result of its kind to span several distinct nanostructured carbon morphologies, including graphene-carbon nanotubes hybrid materials, and may allow more effective nanoscale engineering of supercapacitor electrode materials.

Full Text

Duke Authors

Cited Authors

  • Ubnoske, SM; Raut, AS; Parker, CB; Glass, JT; Stoner, BR

Published Date

  • June 1, 2015

Published In

Volume / Issue

  • 5 / 2

Start / End Page

  • 285 - 290

Electronic International Standard Serial Number (EISSN)

  • 2159-6867

International Standard Serial Number (ISSN)

  • 2159-6859

Digital Object Identifier (DOI)

  • 10.1557/mrc.2015.13

Citation Source

  • Scopus