Modeling and Simulation of Steady-State Polarization and Impedance Response of Phosphoric Acid Fuel-Cell Cathodes with Catalyst-Layer Microstructure Consideration

2000 ◽  
Vol 147 (1) ◽  
pp. 71 ◽  
Author(s):  
Shian-Cherng Yang
Keyword(s):  
Steady State ◽  
Fuel Cell ◽  
Phosphoric Acid ◽  
Modeling And Simulation ◽  
Catalyst Layer ◽  
Phosphoric Acid Fuel Cell ◽  
Impedance Response ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

Influence of the temperature of heat treatment on phosphoric acid fuel cell cathodes

1991 ◽  
Vol 26 (23) ◽  
pp. 6436-6442 ◽  
Author(s):  
Kenro Mitsuda ◽  
Hisashi Shiota ◽  
Hiroshi Kimura ◽  
Toshiaki Murahashi
Keyword(s):  
Heat Treatment ◽  
Fuel Cell ◽  
Phosphoric Acid ◽  
Phosphoric Acid Fuel Cell ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

An investigation of the effects of electrode preparation parameters on the performance of phosphoric acid fuel cell cathodes

1990 ◽  
Vol 35 (9) ◽  
pp. 1411-1421 ◽  
Author(s):  
N. Giordano ◽  
E. Passalacqua ◽  
V. Recupero ◽  
M. Vivaldi ◽  
E.J. Taylor ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Phosphoric Acid ◽  
Phosphoric Acid Fuel Cell ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

Studies of the performance of PEM fuel cell cathodes with the catalyst layer directly applied on Nafion membranes

2006 ◽  
Vol 51 (25) ◽  
pp. 5239-5245 ◽  
Author(s):  
Raimundo R. Passos ◽  
Valdecir A. Paganin ◽  
Edson A. Ticianelli
Keyword(s):  
Fuel Cell ◽  
Catalyst Layer ◽  
Pem Fuel Cell ◽  
Fuel Cell Cathodes ◽  
Nafion Membranes ◽  
Cell Cathodes

scholarly journals The Influence of Catalyst Layer Thickness on the Performance and Degradation of PEM Fuel Cell Cathodes with Constant Catalyst Loading

2017 ◽  
Vol 232 ◽  
pp. 505-516 ◽  
Author(s):  
Mahdi Darab ◽  
Alejandro Oyarce Barnett ◽  
Göran Lindbergh ◽  
Magnus Skinlo Thomassen ◽  
Svein Sunde
Keyword(s):  
Fuel Cell ◽  
Layer Thickness ◽  
Catalyst Layer ◽  
Pem Fuel Cell ◽  
Catalyst Loading ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

Analysis of Drying and Dilution in Phosphoric Acid Fuel Cell (PAFC) Using Galvanometric Study and Electrochemical Impedance Spectroscopy

2014 ◽  
Vol 11 (4) ◽  
Author(s):  
Tanmoy Paul ◽  
Mrinal Seal ◽  
Dipali Banerjee ◽  
Saibal Ganguly ◽  
Kajari Kargupta ◽  
...  
Keyword(s):  
Steady State ◽  
Electrochemical Impedance Spectroscopy ◽  
Fuel Cell ◽  
Impedance Spectroscopy ◽  
Phosphoric Acid ◽  
Electrochemical Impedance ◽  
Cell Temperature ◽  
Phosphoric Acid Fuel Cell ◽  
Operating Variables ◽  
Steady State Current

Different experimental and analytical techniques namely steady state galvanometric study and electrochemical impedance spectroscopy (EIS) are employed to generate rule sets for identification of the acid drying and dilution phenomena in a phosphoric acid fuel cell (PAFC). The slope of steady state current versus voltage is used as a performance marker. A new parameter Δ, which signifies the net moisture transport in PAFC, is introduced and evaluated from the experimental data to locate the regimes of electrolyte dilution and drying. Based on these two parameters, the performance of a PAFC is mapped on the plane of operating variables. Performance decay at higher cell temperature and lower humidifier temperature (below 60 °C) signifies acid drying; on the contrary the same at lower cell temperature and higher humidifier temperature is attributed to acid dilution. EIS is employed by imposing a sinusoidal potential excitation on steady state DC load and the shift of maximum phase angle position in the frequency spectrum is used as a diagnostic marker. Results show absence of peak in the domain of positive frequency for acid drying condition, while acid dilution causes the peak to be shifted at higher frequency value. Electrochemical timescales estimated from EIS increases by many order of magnitudes compared to that in a normal PAFC, when electrolyte drying occurs. The results obtained from EIS analysis are in agreement with the performance mapping based on galvanometric steady analysis. The results are significant in context of water management and humidity control in a PAFC. The tools and parameters introduced in the present publication show promising potential to map the performance and SOH of a PAFC on the plane of various operating variables. Results and logics revealed are of significance in development of inferential model for the online optimization of PAFC.

scholarly journals Petroleum Diesel and Biodiesel Fuels Used in a Direct Hydrocarbon Phosphoric Acid Fuel Cell

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Yuanchen Zhu ◽  
André Y. Tremblay ◽  
Glenn A. Facey ◽  
Marten Ternan
Keyword(s):  
Steady State ◽  
Fuel Cell ◽  
Phosphoric Acid ◽  
Carbonaceous Material ◽  
Cell Performance ◽  
Feed System ◽  
Fuel Cell Performance ◽  
Phosphoric Acid Fuel Cell ◽  
Diesel Fuels ◽  
Steady State Operation

The performance of a direct hydrocarbon phosphoric acid fuel cell, PAFC, was investigated using petroleum diesel, biodiesel, and n-hexadecane as the fuels. We believe this is the first study of a fuel cell being operated with petroleum diesel as the fuel at the anode. Degradation in fuel cell performance was observed prior to reaching steady state. The degradation was attributed to a carbonaceous material forming on the surface of the anode. Regardless of the initial degradation, a steady-state operation was achieved with each of the diesel fuels. After treating the anode with water the fuel cell performance recovered. However, the fuel cell performance degraded again prior to obtaining another steady-state operation. There were several observations that were consistent with the suggestion that the carbonaceous material formed from the diesel fuels might be a reaction intermediate necessary for steady-state operation. Finally, the experiments indicated that water in the phosphoric acid electrolyte could be used as the water required for the anodic reaction. The water formed at the cathode could provide the replacement water for the electrolyte, thereby eliminating the need to provide a water feed system for the fuel cell.

scholarly journals Computational study of the mixed B-site perovskite SmBxCo1−xO3−d (B = Mn, Fe, Ni, Cu) for next generation solid oxide fuel cell cathodes

2019 ◽  
Vol 21 (18) ◽  
pp. 9407-9418 ◽  
Author(s):  
Emilia Olsson ◽  
Jonathon Cottom ◽  
Xavier Aparicio-Anglès ◽  
Nora H. de Leeuw
Keyword(s):  
Fuel Cell ◽  
Physical Properties ◽  
Solid Oxide Fuel Cell ◽  
Computational Study ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Next Generation ◽  
Sofc Cathode ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

The effect of Co-site doping on the electronic, magnetic, and physical properties of next-generation SOFC cathode SmCoO3.

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