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

doi:10.1016/S0254-0584(01)00530-2

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

John and Willie Leone Department of Energy & Mineral Engineering (EME)

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

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 language	English (US)
Pages (from-to)	217-223
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	76
Issue number	3
DOIs	https://doi.org/10.1016/S0254-0584(01)00530-2
State	Published - Sep 1 2002

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

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

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.",

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T1 - Thermal, Raman and surface area studies of microcoiled carbon fiber synthesized by CVD microwave system

AU - Xie, Jining

AU - Sharma, Pramod K.

AU - Varadan, V. V.

AU - Varadan, V. K.

AU - Pradhan, Bhabendra K.

AU - Eser, Semih

PY - 2002/9/1

Y1 - 2002/9/1

N2 - 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.

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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JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

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

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