Simultaneous analysis of organic compounds and H2O adsorbed on various catalyst surfaces by near infrared spectroscopy
Project/Area Number |
24686093
|
Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Partial Multi-year Fund |
Research Field |
Catalyst/Resource chemical process
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Research Institution | Osaka Prefecture University |
Principal Investigator |
Takeuchi Masato 大阪府立大学, 工学(系)研究科(研究院), 准教授 (90382233)
|
Project Period (FY) |
2012-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
|
Keywords | 近赤外分光法 / 触媒表面 / 吸着水 / アンモニア吸着 / 有機物吸着 |
Outline of Final Research Achievements |
Near Infrared (NIR) spectroscopy revealed that (i) H2O clusters formed in alcohol solvents (ethanol or tert- butanol) have rigid hydrogen bond networks as compared to pure liquid H2O.; (ii) Hydroxyl, various organic functional (NH2, COOH, SO3H) groups and H2O adsorbed on SiO2-based adsorbents could be simultaneously analyzed. The interaction with H2O molecules could be summarized to be SiO2-NH2 (water-repellent) << SiO2 (hydrophobic) < SiO2-COOH (hydrophilic) < SiO2-SO3H (hydrophilic).; (iii) Aggregated H2O or methanol clusters having large H-bond networks (close to liquid phase) formed within the 3D pore of Y and beta zeolites. In contrast, less H-bonded clusters (close to vapor phase) formed within the cylinder-shaped pore of ZSM-5 and MOR zeolites.; (iv) NH3 and/or NH4+ adsorbed on Si-OH or H+ sites of zeolite surfaces could be simultaneously analyzed.
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Report
(5 results)
Research Products
(24 results)