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Article Dans Une Revue Carbon Année : 2008

CCVD synthesis of carbon nanotubes with W/Co–MgO catalysts.

Résumé

Carbon nanotubes (CNT) were synthesized from a H2–CH4 mixture with W/Co–MgO catalyst by a catalytic chemical vapour deposition (CCVD) method. Different W/Co ratios were investigated. From transmission electron microscopy observations, we observed that both the number of walls and the diameter of CNT increased with the proportion of tungsten. A promoter effect was observed as long as the proportion of tungsten was kept low and CNT with a number of walls ranging from 2 to 5 were obtained. With a higher proportion of tungsten, multi-walled carbon nanotubes (MWNT) up to 10 walls were synthesised, together with additional undesirable carbon nanofibres.

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Matériaux
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Dates et versions

hal-03572800 , version 1 (14-02-2022)

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Périne Landois, Alain Peigney, Christophe Laurent, L. Frin, Lucien Datas, et al.. CCVD synthesis of carbon nanotubes with W/Co–MgO catalysts.. Carbon, 2008, 47 (3), pp.784-789. ⟨10.1016/j.carbon.2008.11.018⟩. ⟨hal-03572800⟩
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