Protonated state and synergistic role of Nd3+ doped barium cerate perovskite for the enhancement of ionic pathways in novel sulfonated polyethersulfone for H2/O2 fuel cells

Soft Matter ◽  
2020 ◽  
Vol 16 (17) ◽  
pp. 4220-4233 ◽  
Author(s):  
R. Gayathri ◽  
M. Ramesh Prabhu
Keyword(s):  
Fuel Cells ◽  
Power Density ◽  
Current Density ◽  
Barium Cerate ◽  
Doped Barium Cerate ◽  
Sulfonated Polyethersulfone

1.8 times higher current density and power density were obtained for a Nd3+ doped barium cerate membrane compared to pure SPES.

Enhancing Sulfur Tolerance of Ni-Based Cermet Anodes of Solid Oxide Fuel Cells by Ytterbium-Doped Barium Cerate Infiltration

2016 ◽  
Vol 8 (16) ◽  
pp. 10293-10301 ◽  
Author(s):  
Meng Li ◽  
Bin Hua ◽  
Jing-li Luo ◽  
San Ping Jiang ◽  
Jian Pu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Sulfur Tolerance ◽  
Barium Cerate ◽  
Doped Barium Cerate

Performance of Ethane/Oxygen Fuel Cells Using Yttrium-Doped Barium Cerate as Electrolyte at Intermediate Temperatures

2007 ◽  
Vol 111 (13) ◽  
pp. 5069-5074 ◽  
Author(s):  
Shouyan Wang ◽  
Jing-Li Luo ◽  
Alan R. Sanger ◽  
Karl T. Chuang
Keyword(s):  
Fuel Cells ◽  
Barium Cerate ◽  
Oxygen Fuel ◽  
Doped Barium Cerate

Modeling of Micro-Tubular Flame-Assisted Fuel Cells

2020 ◽  
Author(s):  
Rhushikesh Ghotkar ◽  
Ryan J. Milcarek
Keyword(s):  
Fuel Cells ◽  
Power Density ◽  
Current Density ◽  
Equivalence Ratio ◽  
Density Variation ◽  
Open Circuit ◽  
Experimental Results ◽  
Equilibrium Analysis ◽  
Ohmic Loss ◽  
Concentration Loss

Abstract Direct flame fuel cells were developed in 2004 and there have been many iterations of them ever since. One of the latest iterations are the micro-tubular flame-assisted fuel cells. Even though there has been significant experimental research characterizing the performance and polarization losses of flame-assisted fuel cells, there is no model that describes their polarization losses. A model is thus developed and presented in this paper to assess the polarization losses and performance of flame-assisted fuel cells. Voltage and power density variation with current density are the main parameters that are analyzed in this paper. A model for calculating activation, ohmic and polarization losses is developed. Experimental parameters from previously published work like dimensions of the fuel cell layers, the fuel and oxidizer flow rates, the charge transfer coefficient and the exchange current density are used to optimize the model. The FFC is assumed to be a lumped system and a zero dimensional model is thus developed. The model was able to achieve an accuracy up to 95%, which adds to its credibility. The fuel-rich combustion exhaust composition is predicted using chemical equilibrium analysis for the equivalence ratios of 1.25 to 1.4 with intervals of 0.5 at 800°C. The model predicts that the open circuit voltage decreases from 0.94 to 0.89 for the equivalence ratios of 1.4 to 1.25, respectively, which matches experimental results. The model also predicts that the maximum power density decreases with decrease in equivalence ratio. Negligible activation loss was observed in the results while the ohmic loss didn‘t vary significantly with equivalence ratio. The concentration loss increased with decrease in equivalence ratio, which also matches with experimental results.

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