Facile synthesis of highly conductive and dispersible PEDOT particles

Cao，Ge1; Cai，Shaoyong1; Chen，Yonghao1; Zhou，Dongyan1; Zhang，He2; Tian，Yanqing1

2022-06-14

10.1016/j.polymer.2022.124952

POLYMER   影响因子和分区

0032-3861

1873-2291

Poly(3,4-ethylene dioxythiophene) (PEDOT) is widely used in electronics for its excellent conducting property. However, it is challenging to synthesize PEDOT nanoparticles with high conductivity and high dispersibility in various organic solvents. We introduce a novel strategy for synthesizing highly conductive, dispersible PEDOT particles in a binary organic solvent system. The synthesis strategy is based on a standard chemical oxidation procedure, which uses ferric chloride (FeCl) as the oxidant without any post-doping process in a mixed solvent of dichloromethane and acetonitrile (CHCl and CHCN). By optimizing the synthesis process, high-quality colloidal PEDOT nanoparticles (average diameter is around 50 nm) are obtained with a high yield of over 75%. These nanoparticles show a maximum electrical conductivity of 220 S/cm, which is close to the highest electrical conductivity of the current solid PEDOT powder. Moreover, these particles can be dispersed in various organic solvents and water without a surfactant and maintain stable conductivity for over one month. This outstanding processability and conductivity could reinforce thermoplastic polyurethane resins as conductive composites. Prototyped applications of the PEDOT nanoparticles as supercapacitor materials are demonstrated. The PEDOT nanoparticles show a high specific capacitance of 280 F/g, comparable to other reported PEDOT materials prepared using various templates.

High conductivity High dispersibility Poly(3,4-ethylene dioxythiophene) nanoparticles

SCI ; EI

英语

第一 ; 通讯

Southern University of Science and Technology[Y01256114];

Polymer Science

Polymer Science

WOS:000816118400003

ELSEVIER SCI LTD

20222112143143

Chlorination ; Dichloromethane ; Electric conductivity ; Iron compounds ; Organic solvents ; Sols ; Synthesis (chemical)

Electricity: Basic Concepts and Phenomena:701.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Solid State Physics:933

CHEMISTRY

2-s2.0-85130392543

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin,150001,China

Cao，Ge,Cai，Shaoyong,Chen，Yonghao,et al. Facile synthesis of highly conductive and dispersible PEDOT particles[J]. POLYMER,2022,252.

Cao，Ge,Cai，Shaoyong,Chen，Yonghao,Zhou，Dongyan,Zhang，He,&Tian，Yanqing.(2022).Facile synthesis of highly conductive and dispersible PEDOT particles.POLYMER,252.

Cao，Ge,et al."Facile synthesis of highly conductive and dispersible PEDOT particles".POLYMER 252(2022).