Impedance Spectroscopy Study of the Dependence of High-temperature Polymer Electrolyte Membrane Fuel Cell Parameters on Current

Fuel Cells ◽  
2018 ◽  
Vol 18 (6) ◽  
pp. 748-754 ◽  
Author(s):  
M. Kondratenko ◽  
A. Kulikovsky
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Impedance Spectroscopy ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Spectroscopy Study ◽  
Cell Parameters ◽  
Electrolyte Membrane ◽  
Impedance Spectroscopy Study

scholarly journals A High Temperature Polymer Electrolyte Membrane Fuel Cell Model for Reformate Gas

2011 ◽  
Vol 2011 ◽  
pp. 1-18 ◽  
Author(s):  
M. Mamlouk ◽  
Tiago Sousa ◽  
Keith Scott
Keyword(s):  
Thin Film ◽  
High Temperature ◽  
Fuel Cell ◽  
Mass Transport ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Operating Conditions ◽  
Cell Parameters ◽  
Electrolyte Membrane ◽  
Reformate Gas

A one-dimensional model of a high temperature polymer electrolyte membrane fuel cell using polybenzimidazole (PBI) membranes is described. The model considers mass transport through a thin film electrolyte covering the catalyst particles as well as through the porous media. The incorporation of a thin film model describing reactant gas mass transport through electrolyte covering the electrocatalyst is shown to be an essential requirement for accurate simulation. The catalyst interface is represented using a macrohomogeneous model. The influence of carbon monoxide, carbon dioxide, and methane, which would be present in a reformate gas, is considered in terms of the effect on the anode polarisation/kinetics behaviour. The model simulates the influence of operating conditions, cell parameters, and fuel gas compositions on the cell voltage current density characteristics. The model gives good predictions of the effect of oxygen and air pressures on cell behaviour and correctly simulates the mass transport behaviour of the cell. The model with reformate gas shows that additional voltage losses associated with CO poisoning can lead to loss in voltage of tens of mV and thus reduction in power.

High temperature polymer electrolyte membrane fuel cell degradation provoked by ammonia as ambient air contaminant

2021 ◽  
Vol 502 ◽  
pp. 229993
Author(s):  
Dana Schonvogel ◽  
Julian Büsselmann ◽  
Henrike Schmies ◽  
Hendrik Langnickel ◽  
Peter Wagner ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Ambient Air ◽  
Electrolyte Membrane ◽  
Air Contaminant
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