| Project/Area Number |
26600076
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied materials
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
Taniguchi Takaaki 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 主任研究員 (50583415)
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| Co-Investigator(Kenkyū-buntansha) |
YOKOI HIROYUKI 熊本大学, 大学院自然科学研究科, 准教授 (50358305)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | グラフェン / 酸化グラフェン / 強磁性 / 超伝導 / ナノシート / 超電導 |
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| Outline of Final Research Achievements |
This study have focused on development of new room-temperature ferromagnets and superconductors based on reduced graphene oxide. The reduced graphene oxides by electrochemical,thermal,photo, chemical, and hydrothermal approach yielded various graphene oxides with different local- and micro-structures to show magnetic properties depending on the reduction methods. In particular, photo-reduced graphene oxide have carbon vacancies with partial hydrogen terminations, which gave ferromagnetic properties. We also found that electrochemical reduction removed carbon radicals, while re-oxidation gave carbon radicals, where these reactions were reversible. Although we could not archive to find out the room-temperature superconductivities in our samples, we revealed potential of giant magneto-resistance and large pseudo-capacitance in electrochemically reduced graphene oxide.
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