Preparation of intermediate-temperature proton conducting materials utilizing reaction of phosphate glass and organic molecules
| Project/Area Number |
22656154
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural/Functional materials
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
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| Research Collaborator |
OZEKI Akinori 名古屋工業大学, 工学研究科, 博士前期課程
KATO Hiroki 名古屋工業大学, 工学研究科, 博士前期課程
OINE Takahiro 名古屋工業大学, 工学研究科, 博士前期課程
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | プロトン伝導 / 燃料電池 / ハイブリッド / 有機分子 / イミダゾール / ベンズイミダゾール / プロトンダイナミクス / ナノ粒子 / ベンゾイミダゾール |
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| Research Abstract |
An intermediate-temperature proton-conducting amorphous material was prepared utilizing the reaction of zinc metaphosphate glass powders with benzimidazole (BIm). The anhydrous material showed almost no decrease in weight even after heating at 200℃. It showed electrical conductivities of 10-100 pS-cml at the intermediate temperatures of 170-230℃: the activation energy for electrical conduction (~1.0 eV) was larger than that for proton transport between benzimidazole molecules. For improving the electrical conductivities, nanometer-sized zirconium phosphate particles with mobile protons at their surface were hybridized with the amorphous materials. The resulting materials showed two-order magnitude larger conductivities than those before hybridization, and small activation energy of ~16 kJ/mol. NMR analysis implied that the strength of hydrogen bonding and the amount of mobile protons increased at around the surface of the nano-particles. MEA (membrane-electrode-assembly) using the material as the electrolyte worked with a maximum power density of 111 mW cm' when utilized in an H2/02 fuel cell at 150℃.
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Report
(4 results)
Research Products
(62 results)
