Impedance spectroscopy of a single-walled carbon nanotubes/TlH 2PO4 ferroelectrics composite system

Se Hun Kim, J. J. Kweon, J. H. Han, Kwang Sei Lee, Cheol Eui Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The electrical properties of single-walled carbon nanotubes (SWNTs)/TlH2PO4 composites have been studied, a metallic transition being observed around a SWNTs concentration of 0.2 wt.% and investigated by means of impedance spectroscopy. This work represents the first study of its kind to show that nanoparticles may be employed as valued additives that are compatible with the solid acids, providing for increased electrical conductivity of fuel-cell electrolytes. A two orders of magnitude increase in the surface capacitance was observed in the composite, opening up a possibility of new solid acid electrolytes for fuel cells and composite electrolytes serving as a supercapacitor by itself.

Original languageEnglish
Pages (from-to)636-638
Number of pages3
JournalCurrent Applied Physics
Volume11
Issue number3
DOIs
Publication statusPublished - 2011 May 1

Fingerprint

Single-walled carbon nanotubes (SWCN)
Electrolytes
Ferroelectric materials
Large scale systems
carbon nanotubes
electrolytes
Spectroscopy
impedance
fuel cells
composite materials
Fuel cells
Composite materials
spectroscopy
acids
Acids
electrochemical capacitors
Electric properties
Capacitance
capacitance
electrical properties

Keywords

  • Electrical transport properties
  • Metal-based composites
  • Single-walled carbon nanotubes
  • Solid acids

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Impedance spectroscopy of a single-walled carbon nanotubes/TlH 2PO4 ferroelectrics composite system. / Kim, Se Hun; Kweon, J. J.; Han, J. H.; Lee, Kwang Sei; Lee, Cheol Eui.

In: Current Applied Physics, Vol. 11, No. 3, 01.05.2011, p. 636-638.

Research output: Contribution to journalArticle

Kim, Se Hun ; Kweon, J. J. ; Han, J. H. ; Lee, Kwang Sei ; Lee, Cheol Eui. / Impedance spectroscopy of a single-walled carbon nanotubes/TlH 2PO4 ferroelectrics composite system. In: Current Applied Physics. 2011 ; Vol. 11, No. 3. pp. 636-638.
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