Local and Total Entropy Production and Heat and Water Fluxes in a One-Dimensional Polymer Electrolyte Fuel Cell

2005 ◽  
Vol 109 (18) ◽  
pp. 9020-9033 ◽  
Author(s):  
Signe Kjelstrup ◽  
Audun Røsjorde
Keyword(s):  
Fuel Cell ◽  
Entropy Production ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell ◽  
Total Entropy ◽  
Water Fluxes ◽  
One Dimensional ◽  
Total Entropy Production

scholarly journals Lifetime of Catalyst under Voltage Cycling in Polymer Electrolyte Fuel Cell Due to Platinum Oxidation and Dissolution

Technologies ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 80
Author(s):  
Victor A. Kovtunenko ◽  
Larisa Karpenko-Jereb
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Platinum Catalyst ◽  
Polymer Electrolyte Membrane ◽  
Reaction Diffusion ◽  
Operating Conditions ◽  
Polymer Electrolyte Fuel Cell ◽  
Stress Tests ◽  
One Dimensional ◽  
Electrolyte Membrane

The durability of a platinum catalyst in a polymer electrolyte membrane fuel cell is studied at various operating conditions with respect to the different electric potential difference (called voltage) applied in accelerated stress tests. The electrochemical reactions of Pt ion dissolution and Pt oxide coverage of the catalyst lead to the degradation of platinum described by a one-dimensional Holby–Morgan model. The theoretical study of the underlying reaction–diffusion system with the nonlinear reactions is presented by numerical simulations which allow to predict a lifetime of the catalyst under applied voltage cycling. The computer simulation investigates how the Pt mass loss depends on the voltage slope and the upper potential level in cycles.

scholarly journals Pseudo One-Dimensional Analysis of Polymer Electrolyte Fuel Cell Cold-Start

2019 ◽  
Vol 25 (1) ◽  
pp. 285-294
Author(s):  
Yun Wang ◽  
Jeff Mishler ◽  
Partha P. Mukherjee ◽  
Rangachary Mukundan ◽  
Rodney Borup
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Dimensional Analysis ◽  
Cold Start ◽  
Polymer Electrolyte Fuel Cell ◽  
One Dimensional

Development of small polymer electrolyte fuel cell stacks

1996 ◽  
Author(s):  
V A Paganin ◽  
E A Ticianelli ◽  
E R Gonzalez
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell

scholarly journals H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shofu Matsuda ◽  
Yuuki Niitsuma ◽  
Yuta Yoshida ◽  
Minoru Umeda
Keyword(s):  
Fuel Cell ◽  
Electric Power ◽  
Polymer Electrolyte ◽  
Carbon Capture ◽  
Polymer Electrolyte Fuel Cell ◽  
Cell Temperature ◽  
Faradaic Efficiency ◽  
Carbon Capture And Utilization ◽  
Electrode Potentials ◽  
A Cell

AbstractGenerating electric power using CO2 as a reactant is challenging because the electroreduction of CO2 usually requires a large overpotential. Herein, we report the design and development of a polymer electrolyte fuel cell driven by feeding H2 and CO2 to the anode (Pt/C) and cathode (Pt0.8Ru0.2/C), respectively, based on their theoretical electrode potentials. Pt–Ru/C is a promising electrocatalysts for CO2 reduction at a low overpotential; consequently, CH4 is continuously produced through CO2 reduction with an enhanced faradaic efficiency (18.2%) and without an overpotential (at 0.20 V vs. RHE) was achieved when dilute CO2 is fed at a cell temperature of 40 °C. Significantly, the cell generated electric power (0.14 mW cm−2) while simultaneously yielding CH4 at 86.3 μmol g−1 h−1. These results show that a H2-CO2 fuel cell is a promising technology for promoting the carbon capture and utilization (CCU) strategy.

scholarly journals Effect of Pt and Ionomer Distribution on Polymer Electrolyte Fuel Cell Performance and Durability

2021 ◽  
Vol 4 (3) ◽  
pp. 2307-2317
Author(s):  
Aki Kobayashi ◽  
Takahiro Fujii ◽  
Chie Harada ◽  
Eiichi Yasumoto ◽  
Kenyu Takeda ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Cell Performance ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Performance
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