Impedance of the Hydrogen Polymer Fuel Cell Electrode. Theory and Experiments

2000 ◽  
Vol 214 (7) ◽  
Author(s):  
S. Kjelstrup ◽  
P: Pugazhendi ◽  
D. Bedeaux
Keyword(s):  
Fuel Cell ◽  
High Frequency ◽  
Polymer Network ◽  
Low Frequency ◽  
Irreversible Thermodynamics ◽  
Nyquist Diagram ◽  
Hydrogen Electrode ◽  
Fuel Cell Electrode ◽  
Cell Electrode ◽  
Theory And Experiments

We derive the impedance for the hydrogen electrode in the polymer membrane fuel cell from irreversible thermodynamics. The results predict a surface contribution to the cell impedance that can give two semi-circles in the Nyquist diagram. The equivalent circuit of the impedance is shown. The high-frequency contribution is connected to the oscillation of dipoles consisting of free charges in the surface, while the low-frequency contribution is connected to the electrochemical reaction. This can be explained by a slowly relaxing proton conducting polymer network at the reaction site.

Effect of SiO2 additives on the PEM fuel cell electrode performance

2011 ◽  
Vol 36 (22) ◽  
pp. 14815-14822 ◽  
Author(s):  
V. Senthil Velan ◽  
G. Velayutham ◽  
Neha Hebalkar ◽  
K.S. Dhathathreyan
Keyword(s):  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Electrode Performance ◽  
Fuel Cell Electrode ◽  
Cell Electrode

scholarly journals Helium Ion Microscopy of proton exchange membrane fuel cell electrode structures

2017 ◽  
Vol 4 (6) ◽  
pp. 1289-1304 ◽  
Author(s):  
Serguei Chiriaev ◽  
◽  
Nis Dam Madsen ◽  
Horst-Günter Rubahn ◽  
Shuang Ma Andersen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Helium Ion ◽  
Fuel Cell Electrode ◽  
Ion Microscopy ◽  
Cell Electrode ◽  
Exchange Membrane

New Insights in Proton Exchange Membrane Fuel Cell Electrode Microstructure Changes from Accelerated Stress Testing By Microscopy Techniques

2021 ◽  
Vol MA2021-02 (36) ◽  
pp. 1069-1069
Author(s):  
Amir Peyman Soleymani ◽  
Jixin Chen ◽  
Chunmei Wang ◽  
Mark Ricketts ◽  
Stella Papasavva ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Stress Testing ◽  
Proton Exchange ◽  
Microstructure Changes ◽  
Fuel Cell Electrode ◽  
Cell Electrode ◽  
Microscopy Techniques ◽  
Exchange Membrane

Comparative methods for reduction and sulfonation of graphene oxide for fuel cell electrode applications

2019 ◽  
Vol 44 (24) ◽  
pp. 12356-12364 ◽  
Author(s):  
D. Morales-Acosta ◽  
J.D. Flores-Oyervides ◽  
J.A. Rodríguez-González ◽  
N.M. Sánchez-Padilla ◽  
R. Benavides ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cell ◽  
Comparative Methods ◽  
Fuel Cell Electrode ◽  
Cell Electrode
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