2016 Fiscal Year Final Research Report
Study for structure and catalysis of supported metal nanoparticles
Project/Area Number |
15H06468
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Single-year Grants |
Research Field |
Nanomaterials chemistry
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Research Institution | Kyushu University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
TOKUNAGA Makoto 九州大学, 大学院理学研究院, 教授 (40301767)
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Project Period (FY) |
2015-08-28 – 2017-03-31
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Keywords | 金属ナノ粒子調製 / 選択的水素化反応 |
Outline of Final Research Achievements |
Conventional impregnation methods are useful for preparing supported metal nanoparticles except small gold (Au) nanoparticles. We developed a novel simple and easy impregnation method using Au complexes coordinated with β-alanine as precursors. The chloride-free Au complexes were successful for the preparing small Au nanoparticles, which exhibited an average diameter less than 3 nm on the basis of TEM observations, on various supports including silica, which were difficult to be applied for conventional methods. Thermal behavior of the Au complex was investigated by thermogravimetry-differential thermal analyses and in situ X-ray absorption fine structure (XAFS). Lower decomposition and reduction temperature of the Au complex prevented Au atoms from aggregating and from following growth of Au particles. The prepared Au/SiO2 showed high selectivity for hydrogenation of 1-nitro-4-vinylbenzene into 1-ethyl-4-nitorobenzene.
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Free Research Field |
触媒化学
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