Abstract
High density of carbon nanotubes (CNTs) has been synthesized from agricultural hydrocarbon: camphor oil using a one-hour synthesis time and a titanium dioxide sol gel catalyst. The pyrolysis temperature is studied in the range of 700–900°C at increments of 50°C. The synthesis process is done using a custom-made two-stage catalytic chemical vapor deposition apparatus. The CNT characteristics are investigated by field emission scanning electron microscopy and micro-Raman spectroscopy. The experimental results showed that structural properties of CNT are highly dependent on pyrolysis temperature changes.
Highlights
In 1993, Iijima’s group reported the synthesis of carbon nanotubes (CNTs) by a simple technique [1]
Our group successfully synthesized at various pyrolysis temperatures from 700 to 900◦C at increments of 50◦C
There were no attachments between carbon, hydrogen, and oxygen atoms resulting in those free carbon atoms to attach to the catalyst clusters due to perfect catalytic effect and bind together with other carbon atoms to form CNT
Summary
In 1993, Iijima’s group reported the synthesis of carbon nanotubes (CNTs) by a simple technique [1]. They had been selected as excellent candidates, which were largely derived from their unique structural, mechanical, and chemical properties [2]. TiO2 powder and solution are commercially available in the market but it is more recommended to use self-prepared TiO2 solution for desired properties and to ease compositional modification. This is due to its lower vaporization temperature and molarity compared to the commercialize samples
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