Creation of Surface Structures with High Corrosion Resistance forPt Catalyst of Fuel Cell

Research Project

Project/Area Number	23760685
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Material processing/treatments
Research Institution	Tohoku University
Principal Investigator	SUGAWARA Yu 東北大学, 大学院工学研究科, 助教 (40599057)
Project Period (FY)	2011 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000) Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000) Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords	腐食防食 / 電気化学 / 白金 / マイクロ電気化学セル / 白金単結晶 / 白金触媒 / 溶解
Research Abstract	The influence of crystal orientation and grain boundary on the electrochemical property of Pt was studied to improve the durability of Pt catalyst in polymer electrolyte fuel cell. A microelectrochemical cell system enabled the electrochemical measurements on single planes in a polycrystalline Pt, and it was found that higher current densities by Pt oxidation was detected on the Pt(110) surface than Pt(100). Grain boundaries caused the increase of the oxidation current. This result implies the grain boundary is a predominant site of oxidation in a polycrystalline Pt.

Report

(3 results)