2011 Fiscal Year Final Research Report
Constractional study of nano electrocatalysts for functionalization of three phase interface
| Project/Area Number |
21360358
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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 |
Material processing/treatments
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
UMEDA Minoru 長岡技術科学大学, 工学部, 教授 (20323066)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Toshihiko 長岡工業高等専門学校, 物質工学科, 教授 (00300559)
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| Co-Investigator(Renkei-kenkyūsha) |
LEE Choong-gon Hanbat大学, 工学部・化学工学科, 助教授
SHIRONITA Sayoko 長岡技術科学大学, 工学部, 助教 (90580994)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 燃料電池 / 電極触媒 / マイクロ / ナノめっき / 三相界面 / ナノスクラッチ |
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| Research Abstract |
A huge disparity exists between a planar electrode and a practical powder electrocatalyst for a utilization in fuel cell electrode. This is because that the latter structure is complicated owing to its three dimensional construction ; nano catalyst particles are loaded on electroconductive submicron particles. In order to functionalize the three phase interface containing the powder electrocatalyst, we developed to construct the catalyst particle by changing its size and interparticlar distance independently. In addition, electrode reactions using the constructed electrode were investigated. Moreover, investigations of membrane electrode assemblies(MEAs) and fuel cells using the powder catalysts were conducted. For instance, the following experiments were carried out :(1) mask fabrication of modeled electrocatalysts,(2) ex-situ SEM observation of Pt degradation based on the mask fabrication technique,(3) scanning electrochemical microscopy study of H_2O_2 byproduct generation during O_2 reduction,(4) an improvement of electrode conditioning at direct methanol fuel cell, and(5) reaction selective studies in the presence of methanol and oxygen. Consequently, an investigation to vanish the large gap between two and three dimensional electrodes was mostly progressed.
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[Remarks] 梅田実,「マイクロおよびポータブル燃料電池の研究開発」,燃料電池, Vol.10(No.3), 6-11(2011).
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[Remarks] 梅田実,井上光浩,「濃硫酸中におけるPt溶解の電気化学的研究」,硫酸と工業, Vol.64, 65-71(2011).
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[Remarks] 梅田実,井上光浩,「ダレクトメタノール燃料電池-混合反応物タイプとその電極触媒を中心に-」,水素エネルギーシステムVol.36, 25-31(2011).
