A gas diffusion layer (GDL) in a Polymer Fuel Cell (PEMFC) has several important functionalities such as water management, uniform transport of reactant gases, gas permeability, mechanical support and compressibility, electrical and thermal conductivity both in-plane and through-plane. All these requirements are best met by carbon fiber-based materials such as carbon fiber paper, or simply a felt-like material or woven carbon fabrics. In this work, the attention is focused on a new series of GDL materials which were realized by an Italian industry, SAATIgroup. In particular, the attention was focused on two different surface treatments in order to make the GDLs samples hydrophobic. Three different kinds of samples were tested: a first sample with a coating of PTFE, a second sample with a plasma treatment and the third one without any surface treatment. ISI E SCOPUS P. 51-57
Electrical Characterization of GDL Materials for Polymer Fuel Cells (PEMFC)ECS Transactions
DOTELLI, GIOVANNI;GALLO STAMPINO, PAOLA;
2008-01-01
Abstract
A gas diffusion layer (GDL) in a Polymer Fuel Cell (PEMFC) has several important functionalities such as water management, uniform transport of reactant gases, gas permeability, mechanical support and compressibility, electrical and thermal conductivity both in-plane and through-plane. All these requirements are best met by carbon fiber-based materials such as carbon fiber paper, or simply a felt-like material or woven carbon fabrics. In this work, the attention is focused on a new series of GDL materials which were realized by an Italian industry, SAATIgroup. In particular, the attention was focused on two different surface treatments in order to make the GDLs samples hydrophobic. Three different kinds of samples were tested: a first sample with a coating of PTFE, a second sample with a plasma treatment and the third one without any surface treatment. ISI E SCOPUS P. 51-57File | Dimensione | Formato | |
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