| Project/Area Number |
14350376
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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 |
Material processing/treatments
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| Research Institution | MURORAN INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
HIRAI Shinji Muroran Institute of Technology, Department of Materials Science and Engineering, Professo, 工学部, 教授 (10208796)
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| Co-Investigator(Kenkyū-buntansha) |
UEMURA Yoichiro National Institute for Materials Science, Advanced Materials Laboratory, Researcher, 物質研究所, 特別研究員
SHIMAKAGE Kazuyoshi Muroran Institute of Technology, Department of Materials Science and Engineering, Professo, 工学部, 教授 (70005346)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2003: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2002: ¥8,400,000 (Direct Cost: ¥8,400,000)
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| Keywords | Nanostructure / Sol-Gel Process / CO_2 Absorbent / Membrane / Photomultiplier / Lithium Zirconate / Anodic Oxide Film / Gas Separation / Al陽極酸化分離膜 / 透過率 / CO_2 / N_2透過係数比 / 選択分離特性 / Li_2ZrO_3 / 陽極酸化 / テンプレート / ナノチューブ / 光電子倍増管 |
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| Research Abstract |
The preparations of lithium zirconate (Li_2ZrO_3) powders were attempted by a sol-gel process. This material reacted immediately with CO_2 in the range from an ambient temperature to 873K. Moreover, the products react and revert reversibly to Li_2ZrO_3 at temperature above 973K. The absorption and emission of CO_2 gas were ascribed to the mechanism whereby lithium oxide in the Li_2ZrO_3 react reversibly with CO_2. The degree of absorption was defined as the value obtained by dividing the fractional mass gain of Li_2ZrO_3 after absorption by the fractional mass gain corresponding to 100% reaction. The degree of absorption of Li_2ZrO_3 powder having a specific surface area of 9.81m・g^<-1> attained to 95.2% under the absorption condition at 773K for 7.2ks. Furthermore the controls of micropore size for anodic oxide film prepared by Kalcolar solution were attempted by a vacuum heating and a sol-gel process and. The permeation characteristics of CO_2-N_2 mixtured gas through the membrane were evaluated. The ability of CO_2 gas separation using this membrane was confirmed.
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