The growth of 3D carbon fiber lattices based on silicon oxide micro-wires
✍ Scribed by Woo Jin Lee; Chao’en Li; Nick Burke; David Trimm; Jim Patel
- Book ID
- 104009430
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 968 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
A highly cross-linked network of carbon fibers was formed during the dilute oxypyrolysis of methane over a silicon carbide surface. Electron microscopy and focused ion beam milling studies demonstrate that the fibers are comprised of a carbon sheath and a silicon oxide core. Examination of surfaces exposed for different periods of time revealed that the growth of the network was a two-step process involving the formation of a silicon oxide micro-wire network, followed by carbon deposition and thickening of the fibers. Secondary reactions within the fibers are proposed which disrupt the internal structure and introduce internal pores.
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Micro-coiled carbon fibers were prepared by the impurity-activated chemical vapor deposition using the powders of metal carbides, metal oxides, and a Ni single crystal. The catalytic effect of these impurities on the coil yield and morphology were examined, and the growth mechanism is discussed. The
## Abstract Growing aligned carbon nanotubes (CNTs) on electrically conducting and/or optically transparent materials is potentially useful for accessing CNT properties through electrical and optical stimuli. Here, we report a new approach to growing aligned bundles of multiwalled CNTs on a porous