Improving structural and micro-raman properties of camphor-grown pristine carbon nanotubes with special focus on single-stage thermal annealing system

• Published in: Advanced Materials Research
• Main Author: Shamsudin M.S.; Lahori I.A.; Suriani A.B.; Abdullah S.; Yahya S.Y.S.; Rusop M.
• Format: Conference paper
• Language: English
• Published: 2012
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84869402729&doi=10.4028%2fwww.scientific.net%2fAMR.576.454&partnerID=40&md5=c563db7b81c96692443c3ae5afbdd923

The camphor-grown pristine carbon nanotubes (CNT) was annealed by a single-stage thermal annealing system through controlled ambient in air, argon and nitrogen, are reported. Field emission scanning electron microscopy images confirmed that the heat treatment process gives a place to re-ordering carbon nanostructures which involves: (i) an elimination of structural defects and (ii) better graphitization of the amorphous carbon phase without damaging CNT structure. The room temperature micro-Raman measurements showed that no significant changes on the D and Gline position. However, different annealing gas ambient could give different values degree of graphitization (ID/IG ratio) due to the nature of gas itself. It reveals that single-stage thermal annealing system is relatively simple and effective to obtain an ideal CNT. © (2012) Trans Tech Publications, Switzerland.