Proton Conducting Electrolytes Synthesized with Diammonium Hydrogen Phosphate

Dedy Eka Priyanto; Hidenobu Shiroishi; Satoshi Tanimoto; Shunsuke Hirukawa; Morihiro Saito; Jun Kuwano

doi:10.4028/www.scientific.net/KEM.421-422.471

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 421-422Proton Conducting Electrolytes Synthesized with...

Proton Conducting Electrolytes Synthesized with Diammonium Hydrogen Phosphate

Abstract:

Proton conducting ZrO2－yP2O5 (y = 1.0, 1.2, 1.4. 1.6, 1.8) electrolytes based on a shell-core structure were synthesized with diammonium hydrogen phosphate by a solid state reaction, and their conductivities were investigated by ac-impedance spectroscopy. Among the ZrO2-yP2O5 compositions, ZrO2－1.6P2O5 showed the highest proton conductivity of 0.13 Scm-1 at 250°C. The conductivity increased with increasing P2O5 molar ratio and were significantly influenced by heat-treatments in the preparation process. Polytetraflouroethylene (PTFE) was also mixed into these electrolytes in order to improve the mechanical strength and long term durability.

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Key Engineering Materials (Volumes 421-422)

Pages:

471-474

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.421-422.471

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Online since:

December 2009

Authors:

Dedy Eka Priyanto, Hidenobu Shiroishi, Satoshi Tanimoto, Shunsuke Hirukawa, Morihiro Saito, Jun Kuwano

Keywords:

Intermediate Temperature, P₂O₅, Proton Conductive Electrolyte, Shell-Core

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