Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Effect of the surface treatment of the TiO2 fillers on the properties of hexanoyl chitosan/polystyrene blend-based composite polymer electrolytes

Effect of the surface treatment of the TiO2 fillers on the properties of hexanoyl... Surface treatment of TiO2 was done by immersing filler particles in 2 and 4 % sulphuric acid (H2SO4) aqueous solutions. Untreated, 2 and 4 % H2SO4-treated TiO2 were referred as neutral, weakly acidic, and acidic TiO2, respectively. Composite polymer electrolytes (CPEs) based on hexanoyl chitosan–polystyrene blend were prepared by using lithium trifluromethanesulfonate (LiCF3SO3) as the doping salt and three different types of the TiO2 fillers. X-ray diffraction (XRD) results showed that the addition of TiO2 reduced the crystalline fraction of the electrolytes. The conductivity performance of the CPEs varied in the order: acidic < weakly acidic < TiO2 free < neutral TiO2. A model based on the interaction between Lewis acid–base sites of TiO2 with ionic species of LiCF3SO3 has been proposed to understand the conductivity mechanism brought about by the different types of fillers. The conductivity enhancement by neutral TiO2 is attributed to the increase in the mobility of Li+ cations. Acidic TiO2 decreased the conductivity by decreasing the anionic contribution. The conductivity variation with filler content was discussed on the basis of the number of free ions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Effect of the surface treatment of the TiO2 fillers on the properties of hexanoyl chitosan/polystyrene blend-based composite polymer electrolytes

Ionics , Volume 20 (3) – Aug 25, 2013

Loading next page...
 
/lp/springer-journals/effect-of-the-surface-treatment-of-the-tio2-fillers-on-the-properties-pDLLFHiOa2

References (26)

Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer-Verlag Berlin Heidelberg
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-013-0983-1
Publisher site
See Article on Publisher Site

Abstract

Surface treatment of TiO2 was done by immersing filler particles in 2 and 4 % sulphuric acid (H2SO4) aqueous solutions. Untreated, 2 and 4 % H2SO4-treated TiO2 were referred as neutral, weakly acidic, and acidic TiO2, respectively. Composite polymer electrolytes (CPEs) based on hexanoyl chitosan–polystyrene blend were prepared by using lithium trifluromethanesulfonate (LiCF3SO3) as the doping salt and three different types of the TiO2 fillers. X-ray diffraction (XRD) results showed that the addition of TiO2 reduced the crystalline fraction of the electrolytes. The conductivity performance of the CPEs varied in the order: acidic < weakly acidic < TiO2 free < neutral TiO2. A model based on the interaction between Lewis acid–base sites of TiO2 with ionic species of LiCF3SO3 has been proposed to understand the conductivity mechanism brought about by the different types of fillers. The conductivity enhancement by neutral TiO2 is attributed to the increase in the mobility of Li+ cations. Acidic TiO2 decreased the conductivity by decreasing the anionic contribution. The conductivity variation with filler content was discussed on the basis of the number of free ions.

Journal

IonicsSpringer Journals

Published: Aug 25, 2013

There are no references for this article.