2009 Fiscal Year Final Research Report
New Functionalities in Microstructured Crystals Treated under Highly Reducing Conditions
| Project/Area Number |
19685019
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
HAYASHI Katsuro Tokyo Institute of Technology, 応用セラミックス研究所, 准教授 (90397034)
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| Project Period (FY) |
2007 – 2009
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| Keywords | マイエナイト / 湿度センサー / エレクトライド / ヨードメトリー / C12A7 / 水素化物イオン |
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| Research Abstract |
New material functions have been explored by employing a methodology such that highly reducing chemical species are incorporated into microstructure of oxide mineral crystals that are composed of abundant elements. Fully hydride (H^-) ion-incorporated mayenite (C12A7) was synthesized at the first time, and general detection method for H^- ion was established. In electron (e^-)-incorporated C12A7, we elucidated the origin of metallic conductivity, established a general quantification method for e^-, and demonstrated its function as anti-oxidation powder. Incorporation of H^- and e^- was also realized in Sr-substituted maynite.
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