سال انتشار: ۱۳۸۷

محل انتشار: دومین همایش پیل سوختی ایران

تعداد صفحات: ۴

نویسنده(ها):

Monireh. Faraji – Fuel Cell and surfactant lab., Faculaty of science,Tarbiat Modarres University, Tehran Iran.
H. Gharibi – Fuel Cell and surfactant lab., Faculaty of science,Tarbiat Modarres University, Tehran Iran.
Rasoual Abdollah Mirzaie – Department of chemistry, Faculty of science, Shahid Rajaee University, Tehran ,Iran
Mehdi Khrmand – Fuel Cell and surfactant lab., Faculaty of science,Tarbiat Modarres University, Tehran Iran.

چکیده:

There has been considerable speculation that conducting polymers would be useful catalyst support for fuel cells in few recent years. [1]. The interesting chemical behavior of the conducting polymers is due to their intrinsic redox properties, high electronic conductivity, and permeability to electroactive species [2].
Our group has done the pioneering studies that are introduction of polyaniline in gas diffusion electrodes [3].The presence of PANI instead of Nafion increases current density, catalyst utilization and reduces the polarization resistance of the GDE due to the electronic conductivity of PANI and proton conductivity [4]. In another study a gas diffusion electrode with a catalyst layer containing a mixture of Nafion and PANI nanofiber was prepared. The resulting GDE had good mechanical properties and acceptable electrochemical activity [5].
In this work we investigated GDEs which have different mole ratios of Nafion and PANI in their structure to find an optimal point for PANI–Nafion combination for oxygen reduction reaction.