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Supported metal catalyst for synthesizing carbon nanotubes by low-temperature thermal chemical vapor deposition and method of synthesizing carbon nanotubes using the same
Supported metal catalyst for synthesizing carbon nanotubes by low-temperature thermal chemical vapor deposition and method of synthesizing carbon nanotubes using the same
The present invention discloses a supported metal catalyst useful in synthesizing carbon nanotubes by low-temperature (600° C.) thermal chemical vapor deposition (CVD), which contains particles of a noble metal having a diameter of 0.1-10 microns as a support and a metal catalyst deposited on the support. The metal catalyst is iron, cobalt, nickel or an alloy thereof. The weight ratio of the metal catalyst to the support ranges from 0.1:100 to 10:100. The present invention also discloses a method of synthesizing carbon nanotubes directly on a substrate by low-temperature thermal CVD, wherein the support is not needed to be removed from the substrate after growth of carbon nanotubes.
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