Paper Title:
Electrical Spectroscopy Studies of Organic/Inorganic Nano Composites
  Abstract

The electrical conductivity studies of chemically crosslinked nano composite membranes consisting of poly (vinyl alcohol) (PVA) and phosphomolybdic acid (PMA) with different blending composition and crosslinking density has been conducted over a wide frequency regime. The conductivity of the systems has been studied within the temperature range 25 oC ø T oe 100 oC for the hydrated membranes. The proton conductivity of the membranes was generally of the order of 10-3 S/cm. The conductivity of these membranes shows a temperature dependence of Arrhenius type. The activation energies for the membranes were calculated from the conductivity measurements. Both the pristine and hydrated membranes were also characterized by X-Ray diffraction studies to observe the effects of blending and hydration on the crystallinity of the composite membranes. The membranes showed comparable proton conductivity and better resistance to methanol permeability than that of Nafion 112 under the same measurement conditions. These properties make them good candidates as polymer electrolyte membranes for direct methanol fuel cell application.

  Info
Periodical
Advanced Materials Research (Volumes 29-30)
Edited by
Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek
Pages
327-332
DOI
10.4028/www.scientific.net/AMR.29-30.327
Citation
A. Anis, A.K. Banthia, "Electrical Spectroscopy Studies of Organic/Inorganic Nano Composites", Advanced Materials Research, Vols. 29-30, pp. 327-332, 2007
Online since
November 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Katsuyoshi Kakinuma, Hiroshi Yamamura, Tooru Atake
Abstract:We have discovered a high oxide ion conductor within the perovskite-type (Ba1-x-ySrxLay)InO2.5+y/2 solid-solution system. The system was...
159
Authors: Kwan Ho Park, Il Ho Kim
Abstract:Co4-xFexSb12-ySny skutterudites were synthesized by mechanical alloying and hot pressing, and...
65
Authors: Zheng Chen, Rui Qi Li, Qing Guo
Chapter 12: Functional Materials
Abstract:Conductive polyaniline(PANI) was synthesized by chemical oxidative copolymerization , using dodecylbenzene sulfonic acid (DBSA)as doping...
1166
Authors: Rui Yang, Shi Chao Zhang, Lan Zhang, Xiao Fang Bi
Abstract:Solid polymer electrolytes (SPEs) which were composed of poly (ethylene oxide) (PEO), poly (lithium acrylate) (PLiAA), and LiClO4...
53
Authors: Zhen Chen, Ye Mao Han, Min Zhou, Rong Jin Huang, Yuan Zhou, Lai Feng Li
Abstract:In the present study, the glass microsphere dispersed Bi-Sb thermoelectric materials have been fabricated through mechanical alloying...
120