Analysis of interactions between polymer and metal at electro-catalystfor polymer electrolyte fuel cells
Project/Area Number |
23760029
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Thin film/Surface and interfacial physical properties
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Research Institution | University of Yamanashi |
Principal Investigator |
WAKISAKA Mitsuru 山梨大学, 燃料電池ナノ材料研究センター, 准教授 (40377601)
|
Project Period (FY) |
2011 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
|
Keywords | 界面 / 燃料電池 / 単結晶 / 水素吸着 / 酸素還元反応 / 走査型トンネル顕微鏡 |
Research Abstract |
It is highly essential to understand the polymer/metal interfacefor achieving high utilization of electrocatalyst surface in polymer electrolyte fuelcells. In the present study, we prepared and studied model polymer/metal interfaces withsingle-crystal electrodes. Pt-Co and Pt-Ru alloy single-crystals were made by a novelmethod. Changes in cyclic voltammograms at the single-crystal electrodes revealedalloying effects on hydrogen adsorption and surface oxidation processes. Surfacestructures of the electrodes were characterized by scanning tunneling microscopy andX-ray photoelectron spectroscopy before and after adsorption of model polymers. It wasfound that the electrochemical behavior of the single-crystal electrodes was changed bythe adsorption of model polymers.
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Report
(3 results)
Research Products
(14 results)