Carbide-derived carbons: A comparative study of porosity based on small-angle scattering and adsorption isotherms

Giovanna Laudisio, Ranjan K. Dash, Jonathan P. Singer, Gleb Yushin, Yury Gogotsi, John E. Fischer

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Porous carbons have received much attention recently for potential applications in energy generation and storage, molecular sieving, and environmental remediation. Property optimization for specific applications rests largely on controlling the volume, size, and shape of the pores at the synthetic level. Direct atom-scale experiments which might accurately and reliably measure these quantities are problematic, so indirect methods such as gas sorption are generally employed. Here we apply a second indirect method, small-angle X-ray scattering (S AXS), to study porosity in carbidederived carbons (CDC). The results qualitatively confirm and reinforce model-dependent conclusions drawn from gas sorption isotherms. In particular, both techniques indicate the onset of broad polydispersity under the same processing conditions for particular porous carbon materials.

Original languageEnglish (US)
Pages (from-to)8945-8950
Number of pages6
JournalLangmuir
Volume22
Issue number21
DOIs
StatePublished - Oct 10 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Materials Science(all)
  • Spectroscopy
  • Surfaces and Interfaces
  • Electrochemistry

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