Improvement of the Graphene Oxide Dispersion Properties with the Use of TOPSIS Based Taguchi Application

Barış Şimşek,Ahmet Yartaşı,Gözde Ultav,Haluk Korucu

doi:10.3311/ppch.11412

Abstract

The stability of the graphene oxide dispersions is an important issue in the preparation of medicine, printed flexible electronics, 3D printers and conductive inks. In order to improve the stability; mean and standard deviation of particle size, polydispersity index, zeta potential and conductivity of graphene oxide dispersion were selected as the main stability properties. The improvement rate between the estimate and the optimal conditions were calculated for the mean and standard deviation of particle size, polydispersity index, zeta potential and conductivity as 264.0%, 1875.0%, 583.3%, 5.0% and 50.0%, respectively in terms of the GO quality characteristics. The improvement rate between the estimate and the optimal conditions were calculated for the mean and standard deviation of particle size, polydispersity index, zeta potential and conductivity as 42.7%, 79.7%, -5.0%, 9.9% and -86.7%, respectively in terms of the GO quality characteristics. The result show that TOPSIS based Taguchi optimization in this study is effective to improve the graphene oxide dispersion stability.

Highlights

Graphene oxide (GO), which has the supreme physical and chemical properties, is one of the most promising additive in terms of excellent dispersion stability, cost-effective potential, large-scale production of graphene-based materials [1,2,3]
It would be possible to produce the homogeneous graphene oxide dispersion at the large scales, to minimize the standard deviation and to improve the product quality. Another goal of this study aims to determine on the mixture ratios which optimize the stability properties of graphene oxide dispersions
The criteria that represent the stability of the graphene oxide and reduced graphene oxide dispersions are identified as the average particle size, standard deviation of the particle size, polydispersity index, zeta potential and conductivity

Summary

Introduction

Graphene oxide (GO), which has the supreme physical and chemical properties, is one of the most promising additive in terms of excellent dispersion stability, cost-effective potential, large-scale production of graphene-based materials [1,2,3] By means of these features; GO has a wide range of applications such as functional fluids [4], solar cells [5,6], polymer composites [7], cement composites [8], drug delivery systems [9], conductive films [10], biosensors [11], transistors [12], super capacitors [13], nano composites [14], bio-materials [15], lithium ion battery [16], water treatment process [17], conductive polymers [18,19] and conductive inks [20].

Objectives

Methods

Findings

Discussion

Conclusion