Catalytic filamentous carbon

Reshetenko, Tatyana V.; Avdeeva, L.B.; Ismagilov, Z. R.; Пушкарев, В.В.; Cherepanova, Svetlana V.; Chuvilin, Andrey; Likholobov, V. A.

doi:10.1016/s0008-6223(03)00115-5

Cited by 138 publications

(43 citation statements)

References 49 publications

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“…Sub-structural parameters of carbon materials were determined with URD6 X-ray diffractometer and Cu Ka radiation using the procedure described in reference [26].…”

Section: Characterization Of Carbon Materialsmentioning

confidence: 99%

Influence of Nafion® ionomer on carbon corrosion

et al. 2010

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Corrosion of the three carbon black materials which differ in their textural, sub-structural, and morphological characteristics is studied in H 2 SO 4 electrolyte at 80°C at positive polarization. Impregnation of carbon blacks with Nafion Ò ionomer is found to strongly affect their susceptibility to corrosion, which varies non-monotonically as a function of the Nafion Ò loading. Low temperature nitrogen adsorption is applied to study the distribution of the ionomer molecules in the carbon matrix.

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“…Sub-structural parameters of carbon materials were determined with URD6 X-ray diffractometer and Cu Ka radiation using the procedure described in reference [26].…”

Section: Characterization Of Carbon Materialsmentioning

confidence: 99%

Influence of Nafion® ionomer on carbon corrosion

et al. 2010

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“…In addition, a transition metal would promote carbonization and graphitization of PI, which was verified for Kapton films by various research groups. [3][4][5][6][7] However, there has been no attempt to produce carbon nanofiber fabrics by electrospinning of solvent soluble PIs and subsequent carbonization. This study investigates structural changes of electrospun nonwoven PI fabrics with the heat treatment temperature (HTT) and the effects of a transition metal, Iron(III) acetylacetonate (AAI) on the carbonization behavior of the fabrics.…”

Section: Introductionmentioning

confidence: 99%

Properties of carbon nanofibers prepared from electrospun polyimide

Chung

Kim

2005

J of Applied Polymer Sci

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A solution of a polyimide (PI, Matrimid 5218) in dimethylacetamide was electrospun, and carbonization of the electrospun nonwoven fabrics produced carbon nanofiber fabrics. The effects of iron(III) acetylacetonate (AAI) on carbonization and the resulting morphology were also investigated. The carbonization behavior of the nonwoven fabrics was examined by X-ray diffraction and Raman spectroscopy. AAI promoted carbonization of the nonwoven fabrics and increased the carbon yield. Addition of 3 wt % AAI increased the crystal dimension of electrospun PI nanofibers from 1.06 to 4.18 nm and decreased the integrated intensity ratio from 3.37 to 1.83 when heat treated at 1200°C. Scanning electron microscopy images of the carbonized nonwoven fabrics showed that AAI remained as particles within the fibers after carbonization. In addition, transmission electron microscopy observations revealed that turbostratic-oriented graphite layers were observed around the particles even at 1200°C, which have been reported only on carbonization of rigid-chain solvent insoluble PI materials under tension.

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“…While the CF BET surface area was found to decrease with increasing methane decomposition temperatures, the CF yield was found to pass through a maximum with increasing reaction temperature. 72 The above study clearly demonstrates the importance of optimizing the CF yields and CF quality simultaneously.…”

Section: Production Of Carbon Filaments By Catalytic Methane Decomposmentioning

confidence: 74%

“…In a couple of studies, the surface area of the CF formed during methane decomposition process has been related to the CF yields. 65,72 These studies clearly show that the surface area of the CF and CF yields are both strongly dependent (however in a different way) on the catalyst and process conditions. The BET surface area of the CF obtained on the catalyst, which showed highest CF yield (catalyst: 75Ni-15Cu/Al 2 O 3 and yield: 525 g CF /g cat ), was 233 m 2 /g.…”

Section: Production Of Carbon Filaments By Catalytic Methane Decomposmentioning

confidence: 89%