A novel one step synthesis of graphene via sonochemical-assisted solvent exfoliation approach for electrochemical sensing application

Joanna Su Yuin Chia, Michelle T.T. Tan, Poi Sim Khiew, Jit Kai Chin, Hingwah Lee, D. C.S. Bien, Chiu Wee Siong

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

•Novel, green and one-step facile exfoliation approach in ethanol/water mixture.•Comprehensive parametric study yielding optimised synthesis parameters.•Biosensing application of produced graphene shown through electrochemical analysis.•Cyclic voltammetry and amperometric study of graphene towards hydrogen peroxide.•As produced graphene is up to 22 times more sensitive compared to control specimen. Graphene, an extraordinary two-dimensional carbon nanostructure, has attracted global attention due to its remarkable electronic, mechanical and chemical properties. This work reports a novel one-step green and versatile route to produce up to 1mg/mL of graphene by facile exfoliation of raw graphite in ethanol-water mixtures. This approach is viable due to the predictions of material solubility by exploiting the Hansen Solubility Parameters. The effective surface area of the graphene was estimated to be about 1000m2/g while Atomic Force Microscopy (AFM) analysis was adopted to evaluate the surface characteristics of the samples, whereby the graphene sheets were found to have an average thickness of below 2nm. The electrochemical characteristic of the graphene was investigated by cyclic voltammetry tests and amperometric detections of hydrogen peroxide (H2O2), a by-product of most oxidase based enzymatic reactions. The graphene was deposited onto the surface of screen printed carbon electrodes (SPCEs) and the modified electrode was found to demonstrate enhanced electro-catalytic response of more than two-fold compared to unmodified electrodes, while the detection of H2O2 showed excellent stability with a 22 times improvement in sensitivity by optimising the number of deposition layers on the electrode surface.

LanguageEnglish
Pages270-278
Number of pages9
JournalChemical Engineering Journal
Volume249
DOIs
Publication statusPublished - 1 Aug 2014
Externally publishedYes

Fingerprint

Graphite
Graphene
electrode
hydrogen peroxide
ethanol
solubility
atomic force microscopy
carbon
Electrodes
graphite
Hydrogen peroxide
chemical property
mechanical property
Cyclic voltammetry
surface area
Hydrogen Peroxide
Ethanol
Solubility
fold
Carbon

Cite this

Chia, Joanna Su Yuin ; Tan, Michelle T.T. ; Khiew, Poi Sim ; Chin, Jit Kai ; Lee, Hingwah ; Bien, D. C.S. ; Siong, Chiu Wee. / A novel one step synthesis of graphene via sonochemical-assisted solvent exfoliation approach for electrochemical sensing application. In: Chemical Engineering Journal. 2014 ; Vol. 249. pp. 270-278.
@article{42084d89073f456b81e46ba6124108f5,
title = "A novel one step synthesis of graphene via sonochemical-assisted solvent exfoliation approach for electrochemical sensing application",
abstract = "•Novel, green and one-step facile exfoliation approach in ethanol/water mixture.•Comprehensive parametric study yielding optimised synthesis parameters.•Biosensing application of produced graphene shown through electrochemical analysis.•Cyclic voltammetry and amperometric study of graphene towards hydrogen peroxide.•As produced graphene is up to 22 times more sensitive compared to control specimen. Graphene, an extraordinary two-dimensional carbon nanostructure, has attracted global attention due to its remarkable electronic, mechanical and chemical properties. This work reports a novel one-step green and versatile route to produce up to 1mg/mL of graphene by facile exfoliation of raw graphite in ethanol-water mixtures. This approach is viable due to the predictions of material solubility by exploiting the Hansen Solubility Parameters. The effective surface area of the graphene was estimated to be about 1000m2/g while Atomic Force Microscopy (AFM) analysis was adopted to evaluate the surface characteristics of the samples, whereby the graphene sheets were found to have an average thickness of below 2nm. The electrochemical characteristic of the graphene was investigated by cyclic voltammetry tests and amperometric detections of hydrogen peroxide (H2O2), a by-product of most oxidase based enzymatic reactions. The graphene was deposited onto the surface of screen printed carbon electrodes (SPCEs) and the modified electrode was found to demonstrate enhanced electro-catalytic response of more than two-fold compared to unmodified electrodes, while the detection of H2O2 showed excellent stability with a 22 times improvement in sensitivity by optimising the number of deposition layers on the electrode surface.",
keywords = "Amperometric study, Cyclic voltammetry, Electrochemical sensor, Optimisation study, Sonochemical facile synthesis",
author = "Chia, {Joanna Su Yuin} and Tan, {Michelle T.T.} and Khiew, {Poi Sim} and Chin, {Jit Kai} and Hingwah Lee and Bien, {D. C.S.} and Siong, {Chiu Wee}",
year = "2014",
month = "8",
day = "1",
doi = "10.1016/j.cej.2014.03.081",
language = "English",
volume = "249",
pages = "270--278",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",

}

A novel one step synthesis of graphene via sonochemical-assisted solvent exfoliation approach for electrochemical sensing application. / Chia, Joanna Su Yuin; Tan, Michelle T.T.; Khiew, Poi Sim; Chin, Jit Kai; Lee, Hingwah; Bien, D. C.S.; Siong, Chiu Wee.

In: Chemical Engineering Journal, Vol. 249, 01.08.2014, p. 270-278.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A novel one step synthesis of graphene via sonochemical-assisted solvent exfoliation approach for electrochemical sensing application

AU - Chia, Joanna Su Yuin

AU - Tan, Michelle T.T.

AU - Khiew, Poi Sim

AU - Chin, Jit Kai

AU - Lee, Hingwah

AU - Bien, D. C.S.

AU - Siong, Chiu Wee

PY - 2014/8/1

Y1 - 2014/8/1

N2 - •Novel, green and one-step facile exfoliation approach in ethanol/water mixture.•Comprehensive parametric study yielding optimised synthesis parameters.•Biosensing application of produced graphene shown through electrochemical analysis.•Cyclic voltammetry and amperometric study of graphene towards hydrogen peroxide.•As produced graphene is up to 22 times more sensitive compared to control specimen. Graphene, an extraordinary two-dimensional carbon nanostructure, has attracted global attention due to its remarkable electronic, mechanical and chemical properties. This work reports a novel one-step green and versatile route to produce up to 1mg/mL of graphene by facile exfoliation of raw graphite in ethanol-water mixtures. This approach is viable due to the predictions of material solubility by exploiting the Hansen Solubility Parameters. The effective surface area of the graphene was estimated to be about 1000m2/g while Atomic Force Microscopy (AFM) analysis was adopted to evaluate the surface characteristics of the samples, whereby the graphene sheets were found to have an average thickness of below 2nm. The electrochemical characteristic of the graphene was investigated by cyclic voltammetry tests and amperometric detections of hydrogen peroxide (H2O2), a by-product of most oxidase based enzymatic reactions. The graphene was deposited onto the surface of screen printed carbon electrodes (SPCEs) and the modified electrode was found to demonstrate enhanced electro-catalytic response of more than two-fold compared to unmodified electrodes, while the detection of H2O2 showed excellent stability with a 22 times improvement in sensitivity by optimising the number of deposition layers on the electrode surface.

AB - •Novel, green and one-step facile exfoliation approach in ethanol/water mixture.•Comprehensive parametric study yielding optimised synthesis parameters.•Biosensing application of produced graphene shown through electrochemical analysis.•Cyclic voltammetry and amperometric study of graphene towards hydrogen peroxide.•As produced graphene is up to 22 times more sensitive compared to control specimen. Graphene, an extraordinary two-dimensional carbon nanostructure, has attracted global attention due to its remarkable electronic, mechanical and chemical properties. This work reports a novel one-step green and versatile route to produce up to 1mg/mL of graphene by facile exfoliation of raw graphite in ethanol-water mixtures. This approach is viable due to the predictions of material solubility by exploiting the Hansen Solubility Parameters. The effective surface area of the graphene was estimated to be about 1000m2/g while Atomic Force Microscopy (AFM) analysis was adopted to evaluate the surface characteristics of the samples, whereby the graphene sheets were found to have an average thickness of below 2nm. The electrochemical characteristic of the graphene was investigated by cyclic voltammetry tests and amperometric detections of hydrogen peroxide (H2O2), a by-product of most oxidase based enzymatic reactions. The graphene was deposited onto the surface of screen printed carbon electrodes (SPCEs) and the modified electrode was found to demonstrate enhanced electro-catalytic response of more than two-fold compared to unmodified electrodes, while the detection of H2O2 showed excellent stability with a 22 times improvement in sensitivity by optimising the number of deposition layers on the electrode surface.

KW - Amperometric study

KW - Cyclic voltammetry

KW - Electrochemical sensor

KW - Optimisation study

KW - Sonochemical facile synthesis

UR - http://www.scopus.com/inward/record.url?scp=84899055595&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2014.03.081

DO - 10.1016/j.cej.2014.03.081

M3 - Article

VL - 249

SP - 270

EP - 278

JO - Chemical Engineering Journal

T2 - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

ER -