CNT Archives – Institute of Nano Electronic Engineering

Synthesis and characterization of graphene and carbon nanotubes: A review on the past and recent developments

December 24, 2014 By Editor

Abstract – Carbon nanotubes (CNTs) and graphene have built broad interest in most areas of science and engineering because of their extraordinary physical, mechanical, thermal and optical properties. Graphene is a two-dimensional one-atom-thick planar sheet of sp2-bonded carbon atoms while CNTs are a cylindrical nanostructure which composed entirely of sp2-bonded carbon atoms as well. This review presents and discusses the past and current advancement of synthesis and characterization of graphene and CNTs. The review also concludes with a brief summary and an outlook on the challenges and future
prospects in the growth of graphene and CNTs.

Keywords – carbon nanotubes, cnt, graphene oxide, reduced graphene oxide

Corresponding Author: Liu Wei Wen
Corresponding Author’s Email: wwliu@unimap.edu.my

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The Characterization Study of Functionalized Multi-Wall Carbon Nanotubes Purified by Acid Oxidation

April 15, 2014 By Editor

Abstract – Acid oxidation is one of the purification method which has been used to open up the caps, removing carbonaceous and metal particles impurities, and attaching functional group (carboxylic groups, -COOH) at the opened caps and MWCNT surfaces. Unfortunately, this method can cause the structural damages of MWCNT, cut them into shorter length and reduced their performance. However, it is reported that the structure damage of CNT can be acceptable if it is not exceeding 4% of damages. Several characterization techniques will be used to study the composition of functionalized MWCNT and measuring the percent damages of functionalized MWCNT.

Keywords – mwcnt, cnt, functionalized

Corresponding Author: Nazree Deraman
Corresponding Author’s Email: nazree@unimap.edu.my

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The Alignment of Carbon Nano Tube between Aluminum Electrodes using AC Dielectrophoresis Method

September 26, 2012 By Editor

Abstract – This paper presents the recent development and fabrication of carbon nanotubes (CNT) based on electrical devices. The silicon oxide is formed by dry oxidation and the Aluminum (Al) layer is deposited using Thermal Evaporator. The electrodes pad act as a bridge for CNT alignment. Then, this single-walled carbon nanotubes (SWNTs) was suspended in isopropyl alcohol (IPA) and Dichloromethane (DCM) solution in ultrasonic condition around 1 hour continuously. Then, the aligment of the CNT was carried out using AC dielectrophoresis and DC electrophoresis method.

Keywords – CNT, DC electrophoresis method, AC dielectrophoresis method

Corresponding Author: Nur Hamidah Abdul Halim
Corresponding Author’s Email: nurhamidah@unimap.edu.my

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