Thermal, Raman and surface area studies of microcoiled carbon fiber synthesized by CVD microwave system

Jining Xie, Pramod K. Sharma, V. V. Varadan, V. K. Varadan, Bhabendra K. Pradhan, Semih Eser

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

An attempt was made to synthesize coiled carbon fibers over nickel catalyst using acetylene as a carbon source at 700 °C by microwave technique. X-ray diffraction (XRD) and temperature-programmed oxidation (TPO) studies showed presence of disordered carbon in these materials. Highly coiled carbon fibers were observed by scanning electron microscopy (SEM). From a transmission electron microscopy (TEM) study, the average diameter of the fiber was measured ≈200 nm. A Raman spectra of microcoiled carbon fiber was also recorded at room temperature under a nitrogen atmosphere. It has been observed that the surface area of the microwave derived microcoiled carbon was 62 m2g-1. This value of surface area of microcoiled carbon was found to decrease with increasing temperature.

Original languageEnglish (US)
Pages (from-to)217-223
Number of pages7
JournalMaterials Chemistry and Physics
Volume76
Issue number3
DOIs
StatePublished - Sep 1 2002

Fingerprint

carbon fibers
Carbon fibers
Chemical vapor deposition
Carbon
Microwaves
vapor deposition
microwaves
carbon
Acetylene
Nickel
acetylene
Temperature
Raman scattering
Nitrogen
nickel
Raman spectra
Transmission electron microscopy
nitrogen
catalysts
atmospheres

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Xie, Jining ; Sharma, Pramod K. ; Varadan, V. V. ; Varadan, V. K. ; Pradhan, Bhabendra K. ; Eser, Semih. / Thermal, Raman and surface area studies of microcoiled carbon fiber synthesized by CVD microwave system. In: Materials Chemistry and Physics. 2002 ; Vol. 76, No. 3. pp. 217-223.
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Thermal, Raman and surface area studies of microcoiled carbon fiber synthesized by CVD microwave system. / Xie, Jining; Sharma, Pramod K.; Varadan, V. V.; Varadan, V. K.; Pradhan, Bhabendra K.; Eser, Semih.

In: Materials Chemistry and Physics, Vol. 76, No. 3, 01.09.2002, p. 217-223.

Research output: Contribution to journalArticle

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AB - An attempt was made to synthesize coiled carbon fibers over nickel catalyst using acetylene as a carbon source at 700 °C by microwave technique. X-ray diffraction (XRD) and temperature-programmed oxidation (TPO) studies showed presence of disordered carbon in these materials. Highly coiled carbon fibers were observed by scanning electron microscopy (SEM). From a transmission electron microscopy (TEM) study, the average diameter of the fiber was measured ≈200 nm. A Raman spectra of microcoiled carbon fiber was also recorded at room temperature under a nitrogen atmosphere. It has been observed that the surface area of the microwave derived microcoiled carbon was 62 m2g-1. This value of surface area of microcoiled carbon was found to decrease with increasing temperature.

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