Synthesis of organic/inorganic hybrid composite membranes and their structural and conductivity properties

Uma Thanganathan; Suresh Kumar; Akira Kishimoto; Kunio Kimura

doi:10.1016/j.matlet.2011.12.066

Synthesis of organic/inorganic hybrid composite membranes and their structural and conductivity properties

Uma Thanganathan, Suresh Kumar, Akira Kishimoto, Kunio Kimura

School of Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The present article describes the use of a less expensive non-perfluorinated polymer (polyvinyl alcohol, PVA), heteropolyacid (HPA), glutaraldehyde and 3-aminopropyltriethoxysilane (APTES) for the formation of high proton-conducting hybrid composite membranes. The conductivity of the PVA/PMA/Gl/APTES hybrid composite membranes was measured under varying conditions of temperature (from - 20 °C to 140 °C) and relative humidity (from 30 to 90%). Conductivity values in the range of 10 ^{- 3}-10 ^{- 1} S cm ^{- 1} were obtained for the hybrid membranes. These free-standing flexible films were mechanically stable and the corresponding composite membranes were thermally stable up to 300 °C. Their swelling ratio was calculated for dry and wet conditions at room temperature.

Original language	English
Pages (from-to)	81-87
Number of pages	7
Journal	Materials Letters
Volume	72
DOIs	https://doi.org/10.1016/j.matlet.2011.12.066
Publication status	Published - Apr 1 2012

Keywords

Conductivity
Hybrid composite
Phosphomolybdic acid
Polyvinyl alcohol
Sol-gel

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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abstract = "The present article describes the use of a less expensive non-perfluorinated polymer (polyvinyl alcohol, PVA), heteropolyacid (HPA), glutaraldehyde and 3-aminopropyltriethoxysilane (APTES) for the formation of high proton-conducting hybrid composite membranes. The conductivity of the PVA/PMA/Gl/APTES hybrid composite membranes was measured under varying conditions of temperature (from - 20 °C to 140 °C) and relative humidity (from 30 to 90%). Conductivity values in the range of 10 - 3-10 - 1 S cm - 1 were obtained for the hybrid membranes. These free-standing flexible films were mechanically stable and the corresponding composite membranes were thermally stable up to 300 °C. Their swelling ratio was calculated for dry and wet conditions at room temperature.",

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author = "Uma Thanganathan and Suresh Kumar and Akira Kishimoto and Kunio Kimura",

note = "Funding Information: This work was financially supported by the Ministry of Education, Sport, Culture, Science and Technology (MEXT) and the Special Coordination Funds for Promoting Sciences and Technology of Japan . Special thanks go to Prof. Kishimoto, Graduate School of Natural Science of Technology and Prof. Kimura, Graduate School of Environmental Science, Okayama University, Japan; they permitted to use their lab equipments for my research work. Many thanks go to Mr. A. Suresh Kumar, RCIS, and Okayama University for his help with the XRD, FTIR and TG/DTA experiments. The authors thank Assist Prof. Y. Nishina, RCIS, Okayama University, for his help with the Chem Draw software in Fig. 4 .",

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Synthesis of organic/inorganic hybrid composite membranes and their structural and conductivity properties

Abstract

Keywords

ASJC Scopus subject areas

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