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Study Results from University of Puerto Rico in the Area of Silicon Reported (Carbon nanotubes coated with diamond nanocrystals and silicon carbide...

July 11, 2014



Study Results from University of Puerto Rico in the Area of Silicon Reported (Carbon nanotubes coated with diamond nanocrystals and silicon carbide by hot-filament chemical vapor deposition below 200 degrees C substrate temperature)

By a News Reporter-Staff News Editor at Science Letter -- Data detailed on Silicon have been presented. According to news reporting originating from San Juan, Puerto Rico, by NewsRx correspondents, research stated, "Multi-walled carbon nanotubes (MWCNTs) dispersed onto a silicon substrate have been coated with diamond nanocrystals (DNC) and silicon carbide (SiC) from solid carbon and silicon sources exposed to H-2 activated by hot filament chemical vapor deposition (HFCVD) at around 190 degrees C substrate temperature. MWCNT coating by DNC initiates during filament carburization process at 80 degrees C substrate temperature under conventional HFCVD conditions."

Our news editors obtained a quote from the research from the University of Puerto Rico, "The hybrid nanocarbon material was analyzed by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, electron energy loss spectroscopy, selected area electron diffraction, X-ray diffraction and Raman spectroscopy. The structure of the MWCNTs is preserved during coating and the smooth DNC/SiC coating is highly conformal. The average grain size is below 10 nm."

According to the news editors, the research concluded: "The growth mechanism of DNC and SIC onto MWCNT surface is discussed."

For more information on this research see: Carbon nanotubes coated with diamond nanocrystals and silicon carbide by hot-filament chemical vapor deposition below 200 degrees C substrate temperature. Carbon, 2014;75():113-123. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Carbon - www.elsevier.com/wps/product/cws_home/258)

The news editors report that additional information may be obtained by contacting F. Piazza, University of Puerto Rico, Dept. of Chem, San Juan, PR 00936, United States. Additional authors for this research include G. Morell, J. Beltran-Huarac, G. Paredes, M. Ahmadi and M. Guinel (see also Silicon).

Keywords for this news article include: Silicon, San Juan, Fullerenes, Puerto Rico, Nanocrystal, United States, Nanotechnology, Carbon Nanotubes, Emerging Technologies, North and Central America, Chemical Vapor Deposition

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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