2015 Fiscal Year Final Research Report
Synthesis, structure, and properties of noble metal nanoparticles/nanocrystal-clay composites by using exfoliated inorganic clay nanosheets
| Project/Area Number |
26600050
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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 |
Nanomaterials engineering
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| Research Institution | Nihon University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
SHIMIZU Shouichi 日本大, 生産工学部, 教授 (10139115)
TAKADA Tetsuo DIC株式会社, 総合研究所, 主席研究員 (00425670)
TAKEHISA Toru DIC株式会社, 総合研究所, 主任研究員 (70425669)
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| Research Collaborator |
VARADE Dharmesh Ahmedabad University
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | ナノ粒子 / コアシェル構造 / クレイ / 貴金属 / 触媒 / ナノコンポジット |
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| Outline of Final Research Achievements |
We synthesized novel Pt-NC gels, consisting of ultrafine Pt nanoparticles (average diameter: 1-2 nm) strongly immobilized within a unique polymer-clay network, through exfoliated clay-mediated in situ reduction of Pt ions in nanocomposite (NC) gel at ambient temperature. Also, we synthesized novel bimetallic (e.g., Pt-Pt, Au-Pt, Au-Pd) core-shell nanocrystal-clay composite in a single step by a facile wet-chemical co-reduction method, and revealed the striking potential of exfoliated clay nanosheets to form bimetallic core-shell structure and achieve high stability, large BET surface area and superior catalytic activities. Further, we developed novel core-shell type bimetallic (Co-Pt and Ni-Pt) nanocrystals consisting of noble and base metals. The resulting bimetallic nanocrystals exhibited extraordinarily high catalytic activities compared with monometallic Pt nanoparticles.
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| Free Research Field |
総合理工
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