2016 Fiscal Year Final Research Report
New functions of nanomaterials investigated by using solid-state electrochemistry
| Project/Area Number |
26288034
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Kwansei Gakuin University (2015-2016)
Nagoya University (2014) |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TANIFUJI NAOKI 米子工業高等専門学校, 物質工学科, 准教授 (80423549)
AWAGA KUNIO 名古屋大学, 大学院理学研究科物質理学専攻, 教授 (10202772)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 固体電気化学反応 / 超伝導体 / 金属有機構造体 / 二次電池 / XAFS |
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| Outline of Final Research Achievements |
In this work, we tried to develop high performance rechargeable batteries by using metal-organic frameworks (MOFs) and investigate new solid-state physical properties of transition metal oxides, based on the solid-state electrochemical reactions. Firstly, we succeeded in synthesizing a novel MOF (Mn-MOF) consisting of Mn ions and AQDC ligands, and found that the Mn-MOF battery exhibited a high gravimetric capacity of 200 mAh/g and an excellent cyclability in the cycle performance test. Then, we examined electrochemical control of superconductivity of YBCO and LTO (LiTi2O4). In YBCO, as the voltage decreased below 1.5 V in discharge process, its diamagnetic susceptibilities at 10 K gradually decreased, although Tc was not changed. When the voltage finally reached 0.95 V, magnetic susceptibilities became nearly zero in a whole temperature region, which means that its superconducting transition disappeared.In the case of LTO, we succeeded in controlling Tc by the electrolyte reversibly.
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| Free Research Field |
機能物性化学
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