Transmission electron microscopy analysis of catalytic clusters and atoms on graphene layers
| Project/Area Number |
25390035
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nanomaterials engineering
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
Hashimoto Ayako 国立研究開発法人物質・材料研究機構, 先端材料解析研究拠点, 主任研究員 (30327689)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 透過型電子顕微鏡 / 触媒ナノ粒子 / その場観察 / カーボン担持体 |
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| Outline of Final Research Achievements |
Noble metal catalysts are often used in various industries as nanoparticles dispersed on support materials because they are very rare and therefore expensive. In this study, we studied Pt-carbon based catalysts by TEM, which are used as an electrode of a fuel cell. We synthesized clusters and single atoms on graphene layers from Pt nanocolloids by heating in a vacuum. We searched for the optimum conditions to form them by changing some conditions such as heating temperature, time and so forth. In addition, we developed a TEM specimen holder system which could heat a specimen in a gas atmosphere for in-situ observation of such catalytic materials. Furthermore, we performed in-situ observation of the synthesized Pt nanoparticles on graphene using the specimen holder system and investigates the structures and behavior of the nanoparticles under a gas atmosphere at high temperature.
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Report
(5 results)
Research Products
(32 results)
