2002 Fiscal Year Final Research Report Summary
Fabrication and Evaluation of Highly Proton-conductive Inorganic-organic Composites Utilizing Separated Phases with Meso-scale Size
| Project/Area Number |
13450274
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Musashi Institute of Technology |
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Principal Investigator |
NAGAI Masayuki Musashi Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (80112481)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUDA Motohide Okayama University, Faculty of Environmental Science and Technology, Associate Professor, 環境理工学部, 助教授 (80222305)
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| Project Period (FY) |
2001 – 2002
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| Keywords | Sol-gel process / Phase separation / Proton conductor / Composite / Silicon-based compound / siloxane / Hydrophilic / Chemical durability |
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| Research Abstract |
Inorganic-organic proton-conductive composites were fabricated by Use of the sol-gel process and evaluated with various characterization. Enhancement in ionic conductivity and mechanical property was expected by the formation of phase separation in meso-scale size. Silicon based organic compounds and silicate were employed as the starting materials. The main results obtained in this study are summarized as follows ;
1.Micro-scale phase separation was observed in the samples containing siloxane.
2.The samples consisted of three parts, namely soft phase, hard phase and interface phase.
3.The phase-separated samples showed enhanced proton conductivity when a solid acid was added.
4.The mechanical strength was not so large but influence of interfacial connection of separated phases were suggested.
5.The role of water in the phase-separated samples was thought to be one of the important factor to dominate the electrical and mechanical properties.
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