| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2011: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2009: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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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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