Optimizing chemical structure of surfactant for graphene exfoliation method for nanoelectronic devices applications

Azmi Mohamed

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Type :	research_report
Subject :	TK Electrical engineering. Electronics Nuclear engineering
Main Author :	Azmi Mohamed
Additional Authors :	Noorazlan Abdul Azis
Title :	Optimizing chemical structure of surfactant for graphene exfoliation method for nanoelectronic devices applications

Place of Production :	Tanjong Malim
Publisher :	Fakulti Sains dan Matematik
Year of Publication :	2019
Corporate Name :	Universiti Pendidikan Sultan Idris

Abstract : Universiti Pendidikan Sultan Idris

A facile electrochemical exfoliation method was established to efficiently prepare conductive paper containing reduced graphene oxide (RGO) with the help of dodecyl anionic and cationic surfactant. For the first time the combination of ionic surfactants and cellulose was used to directly exfoliate graphite. A thorough investigation using electron microscopy and Raman spectroscopy highlights the presence of uniform graphene incorporated inside the matrix. Studies into aqueous aggregation behavior between graphene and cellulose and is responsible for the enhanced exfoliation level and stabilization of the resulting dispersion. Interestingly, the cationic surfactant DTAB proved to be more efficient for stabilization of RGO in nanofibrillated kenaf cellulose than the anionic SDS. The simple and feasible process for producing conductive paper here is attractive for the possibility of scaling-up this technique for mass production of conductive composite containing graphene or other layered materials.

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