Green synthesis of few-layered graphene from aqueous processed graphite exfoliation for graphene thin film preparation

The development of an approach for producing a very low defect graphene with simple and green technique is essential for highly conductive graphene thin film preparation. This paper describes the preparation of graphene thin film from aqueous processed graphene dispersion using alkaline lignin (AL)...

Full description

Saved in:
Bibliographic Details
Published in:Materials chemistry and physics 2017-06, Vol.193, p.212-219
Main Authors: Saiful Badri, Muhammad Ashraf, Salleh, Muhamad Mat, Md Noor, Noor Far'ain, Rahman, Mohd Yusri Abd, Umar, Akrajas Ali
Format: Article
Language:English
Subjects:
Alkaline lignin surfactant
Annealing
Basal plane
Conductivity
Diffraction
Dip coating
Dispersion
Electrical resistivity
Exfoliation
Graphene
Graphite
Immersion coating
Low cost
Low defect graphene
Raman spectroscopy
Sheets
Spectrum analysis
Studies
Substrates
Surfactant desorption
Thin films
X-rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The development of an approach for producing a very low defect graphene with simple and green technique is essential for highly conductive graphene thin film preparation. This paper describes the preparation of graphene thin film from aqueous processed graphene dispersion using alkaline lignin (AL) as surfactant, a low cost route to produce high yield (0.72 ± 0.05 mg/mL) with free structural defect of graphene sheets. In this work, the cationic properties of AL adsorbed on the exfoliated graphene sheet surfaces are easily removed via centrifugation, thermal and annealing treatments so that prepared graphene thin films exhibit good electrical conductivity and defect ratio reduction. Using optimum AL solution with concentration of 0.5 mg/mL, the precursor graphite is successfully being exfoliated into few layer graphene sheets (
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2017.02.029