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Fast Proton Conductors from Inorganic-Organic Composites: II. Amorphous Phosphate-PTFE and ZrP-PTFE Composites

Published online by Cambridge University Press:  10 February 2011

Yong-Il Park ,
Jae-Dong Kim  and
Masayuki Nagai
Yong-Il Park
Affiliation:
Advanced Research Center for Energy and Environment, Musashi Institute of Technology, 1–28–1 Tamazutsumi, Setagaya-ku, Tokyo 158–8557, Japan
Jae-Dong Kim
Affiliation:
Advanced Research Center for Energy and Environment, Musashi Institute of Technology, 1–28–1 Tamazutsumi, Setagaya-ku, Tokyo 158–8557, Japan
Masayuki Nagai
Affiliation:
Advanced Research Center for Energy and Environment, Musashi Institute of Technology, 1–28–1 Tamazutsumi, Setagaya-ku, Tokyo 158–8557, Japan
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Abstract

A high proton-conductivity was observed in the composite of amorphous phosphate and polytetafluoroethylene (PTFE). Incorporation of amorphous phosphate into PTFE emulsion caused a large increase of conductivity to about 4×10−2S/cm at 23°C. However, the conductivity decreased with increasing heat-treatment temperature, and the fabricated composite showed very low chemical stability.

As a chemically stable composite, PTFE-based composite was also synthesized from α- or γ-zirconium phosphate crystalline powders dispersed in partially polymerized PTFE particles. By addition of zirconium phosphate powders, the proton conductivity jumped up to 2.2×10−3S/cm from 10−13S/cm of PTFE.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 600: Symposium FF – Electroactive Polymers , 1999 , 305
Copyright
Copyright © Materials Research Society 2000

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