首页|Oxygen Plasma-Mediated Microstructured Hydrocarbon Membrane for Improving Interface Adhesion and Mass Transport in Polymer Electrolyte Fuel Cells

Oxygen Plasma-Mediated Microstructured Hydrocarbon Membrane for Improving Interface Adhesion and Mass Transport in Polymer Electrolyte Fuel Cells

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Developing a method for fabricating high-efficient and low-cost fuel cells is imperative for commercializing polymer electrolyte membrane (PEM) fuel cells (FCs). This study introduces a mechanical and chemical modification technique using the oxygen plasma irradiation process for hydrocarbon-based (HC) PEM. The oxygen functional groups were introduced on the HC-PEM surface through the plasma process in the controlled area, and microsized structures were formed. The modified membrane was incorporated with plasma-treated electrodes, improving the adhesive force between the HC-PEM and the electrode. The decal transfer was enabled at low temperatures and pressures, and the interfacial resistance in the membrane-electrode assembly (MEA) was reduced. Furthermore, the micropillar structured electrode configuration significantly reduced the oxygen transport resistance in the MEA. Various diagnostic techniques were conducted to find out the effects of the membrane surface modification, interface adhesion, and mass transport, such as physical characterizations, mechanical stress tests, and diverse electrochemical measurements.

fuel cellhydrocarbon membraneplasmamicrostructureadhesionmass transport

Jiwoo Choi、Dongsu Kim、Ji Eon Chae

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Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul 08826, Republic of Korea

Department of Mechanical Engineering Kookmin National University, Seoul 02707, Republic of Korea

Department of Mobility Power Research, Korea Institute of Machinery & Materials, Yuseong-gu, Daejeon 34103, Korea

2022

10.1021/acsami.2c15122

ACS applied materials & interfaces

ACS applied materials & interfaces

SCI
ISSN：1944-8244
年,卷(期)：2022.14(45)
  • 5
  • 45