2012 Fiscal Year Final Research Report
Catalyst Design Based on Nano-Sized Electrochemical Reactors
| Project/Area Number |
21350073
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
HIBINO Takashi 名古屋大学, 環境学研究科, 教授 (10238321)
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| Project Period (FY) |
2009 – 2012
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| Keywords | 触媒 / 化学プロセス / 環境技術 / 複合材 / 物性 |
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| Research Abstract |
In this study, we have focused on H2O vapor as an active oxygen source produced over a physical mixture of proton-conducting Sn0.9In0.1P2O7 and Pt powders as a catalyst. The active oxygen was produced by the anodic reaction of H2O in an electrochemical cell. The active oxygen exhibits high activity for hydrocarbon oxidation at 50 °C or higher. The activation of oxygen from H2O vapor was also realized over a Sn0.9In0.1P2O7+Pt mixed catalyst. In a gaseous mixture of propane, H2O, and O2, H2O is dissociated into protons and electrons at an anodic site of the Sn0.9In0.1P2O7-Pt interface and the resultant active oxygen oxidizes propane to CO2. On the other hand, O2 reacts with protons and electrons to form H2O at a cathodic site of the interface. As a result, a local electrochemical cell is formed at the interface, followed by self-discharge. With such high activity , the initiation temperature for propane oxidation could be successfully reduced to 150 °C and the quantity of Pt in the mixed catalyst was reduced to 0.1 wt%.
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