| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
The purpose of this study is to determine directly the active reaction sites on the nanoparticulate catalyst surfaces by using a stroboscopic environmental transmission electron microscopy (ETEM) enabling to in-situ observations of materials even in gaseous environments.
We have successfully developed a new specimen holder having a co-axial structure, and also a gas-mixing system, though fabrication of a stroboscopic illumination system had to be deferred due to technical and financial problems. The developed ETEM have realized in-situ observations of nanoparticulate gold catalysts supported on TiO2 anatase during a propene epoxidation reaction. As a result, it was observed that the reaction products of a propene oxide appear as a liquid form at around the Au/ TiO2 interfaces just in a reaction condition. Therefore, we can successfully conclude that the reaction sites of the gold catalysts are the perimeter of the interface between the gold and the TiO2 substrate.
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