ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
In this paper, mass production of quasi-aligned CNTs was achieved with a new tri-metalliccatalyst (Fe-Ni-Mo/MgO) by thermal CVD method, using methane as carbon precursor. The growthprocess was in-situ monitored by thermal gravimetry/differential scanning calorimetry (TG-DSC)technique, and the yield of CNTs over 2200% was attained under the mixture atmosphere of CH4 and H2with flow rate about 25 ml/min and 5 ml/min respectively at 900°C for 30 min. The as-prepared productswere characterized. Raman spectrums showed that the CNTs are multi-wall structure. The diameter of theCNTs was estimated to be 20-30 nm. We think the synergism of FeNi3 alloy and Mo is the main reason forthe high catalytic activity of tri-metallic catalyst
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1507.pdf
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