SYNCHRONOUS IMPROVEMENT OF DISPERSIBILITY AND ELECTRICAL PROPERTY OF ANTIMONY DOPED TIN OXIDE NANOPARTICLES PROCESSED BY POLYVINYL ALCOHOL

Shimin Liu (), Bin Wen, Weiwei Jiang, Chaoqian Liu, Wanyu Ding, Nan Wang and Weiping Chai
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Shimin Liu: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;
Bin Wen: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;
Weiwei Jiang: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;
Chaoqian Liu: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;
Wanyu Ding: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;
Nan Wang: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;
Weiping Chai: School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China;

Surface Review and Letters (SRL), 2015, vol. 22, issue 05, 1-10

Abstract: Antimony doped tin oxide (ATO) nanoparticles were prepared by wet chemical coprecipitation method with different contents of polyvinyl alcohol (PVA) dispersant. The prepared ATO nanoparticles have been characterized by means of XRD, SEM, HRTEM, SAED, EDS, bulk density and electrical resistivity measurement. Results indicated that the approach functionalized by PVA dispersant enables a synchronous improvement of two important properties namely the dispersibility and electrical conductivity due to the mechanism of avoiding the formation of agglomeration of nanoparticles, which could be regarded as primary factors for the enhanced electron transfer of powders: The surface area over which are crucial for the interfacial arrangement and electron charge scattering/transfer processes. The bulk density and electrical resistivity decreased to a minimum of 0.90 g/cm3and 1.44 Ω⋅cm at PVA dispersant content of 5%, and increased rapidly at higher PVA contents. The prepared ATO nanoparticles can serve as a kind of effective conductive filler in insulating species such as plastics, textile and rubber.

Keywords: Tin dioxide nanoparticles; SnO2; chemical coprecipitation; crystallinity; morphology (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1142/S0218625X1550064X

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