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Study the effect of graphite addition to the catalyst layer of gas diffusion electrode on the ORR kinetic

Publish place: Second National Conference on Hydrogen and Fuel Cells
Publish Year: 1391
Type: Conference paper
Language: English
View: 1,698

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Link to this Paper:
https://civilica.com/doc/163057

Document National Code:

H2FC02_078

Index date: 17 September 2012

Study the effect of graphite addition to the catalyst layer of gas diffusion electrode on the ORR kinetic abstract

Different amounts of graphite was added to the catalyst layer of a PEM fuel cell in order to study the cell performance through changing in surface area of gas diffusion layer. The electrodes that included graphite were directly examined in a three electrodes system and electrochemical methods such as cyclic voltammetery, linear sweep voltammetery, chornoamprometery and impedance analysis (zahner) used to investigate the actual effect of graphite as an additive .It was found that addition of 1.7, 1.8 and 2% wt graphite in to the catalyst layer enhance the performance of electrodes in low current density region. An electrode with 1.7%wt graphite showed the best cell performance.

Study the effect of graphite addition to the catalyst layer of gas diffusion electrode on the ORR kinetic Keywords:

Gas diffusion electrode , PEM fuel cell , graphite addition , surface area

Study the effect of graphite addition to the catalyst layer of gas diffusion electrode on the ORR kinetic authors

Rasol Abdullah Mirzaie

Assistant Professor- Fuel cell Research Laboratory - Dep. Of chemistry- Faculty of science- Shahid Rajaee University-Tehran

Rahil Yazdanshenas

MSc. Student in Physical Chemistry- Fuel cell Research Laboratory - Dep. Of chemistry- Faculty of science- Shahid Rajaee University

Ahmad Nozad Goli-Kand

Associate Professor, Material School, NSTRI, Tehran,