Deeping of surface modification technology using pulsed power and its development for polymer electrolyte fuel cell

2020 Fiscal Year Final Research Report

• Project/Area Number: 18K04092
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21010:Power engineering-related
• Research Institution: Kyushu Sangyo University
• Principal Investigator: IMASAKA Kiminobu 九州産業大学, 理工学部, 教授 (40264072)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Keywords: パルスパワー / 表面改質 / ナノカーボン / 固体高分子型燃料電池 / クリーンエネルギー

Outline of Final Research Achievements

Surface of nano carbon materials such as carbon nanotubes (CNTs) and carbon nano horns (CNHs) were modified by ozone treatment using dielectric barrier discharge. The modified MWCNTs were used as electrodes material of polymer electrolyte fuel cell (PEFC) and the output characteristics of PEFC were investigated. XPS measurements revealed that functional groups containing oxyge were introduced on the surface of nano carbon materials by the ozone treatment.
The ozone-treated materials were used for the anode and/or cathode of PEFC. It was found that the output characteristic was extremely depended on the combination of electrodes material with and without ozone-treatment. Most highest output performance was obtained when the surface modified and the untreated carbon nano materials were used as the anode and chathode material, respectively. This result suggested that the use of ozone-treated nano carbon materials was effective for the improvement of output characteristic of PEFC.

Free Research Field

パルスパワー工学

Academic Significance and Societal Importance of the Research Achievements

パルスパワー技術は、電気エネルギーの有効利用として注目されており、様々な分野への応用が期待されており、本研究のパルスパワー技術によるナノカーボン材料の表面改質に関する成果は、ナノテクノロジーや材料分野などの異分野にも新たな知見を与えるものである。一方、固体高分子型燃料電池は、二酸化炭素を放出しないクリーンエネルギー源である。固体高分子型燃料電池への展開における研究成果として出力向上などの表面改質ナノカーボンの利用効果が得られたことは、環境やエネルギー問題とも関連した脱炭素社会や水素社会の実現に貢献できると考えられる。