Control growth of carbon nanofibers on Ni/activated carbon in a fluidized bed reactor
An effectual new approach to prepare a hybrid composite of vapor-grown carbon nanofibers (VGCNFs)/activated carbon (AC) with high specific surface area is demonstrated. The fibers are synthesized at 1073 K by a chemical vapor deposition method with natural gas (CH 4) as the carbon source, hydrogen a...
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Published in | Microporous and mesoporous materials Vol. 131; no. 1; pp. 393 - 400 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
San Diego, CA
Elsevier Inc
01.06.2010
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | An effectual new approach to prepare a hybrid composite of vapor-grown carbon nanofibers (VGCNFs)/activated carbon (AC) with high specific surface area is demonstrated. The fibers are synthesized at 1073
K by a chemical vapor deposition method with natural gas (CH
4) as the carbon source, hydrogen as carrier gas and Ni nanoparticles loaded on AC as the catalyst. The materials synthesized are characterized using a combination of N
2 adsorption–desorption isotherm, Raman spectroscopy, X-ray diffraction, scanning and transmission electron microscopy. This shows that after 180
min reaction, the Brunauer, Emmett and Teller (BET) surface area of VGCNF/AC reaches 1113
m
2/g, and VGCNFs with diameters ranging between 40 and 120
nm can develop on the surface of the AC. Platelet graphite nanofibers and contorted nanofibers are found and their microstructures depend on the characteristics of the catalyst used. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1387-1811 1873-3093 |
DOI: | 10.1016/j.micromeso.2010.01.021 |