Degradation kinetics of Pt during high-temperature PEM fuel cell operation part II: Dissolution kinetics of Pt incorporated in a catalyst layer of a gas-diffusion electrode

2020 ◽  
Vol 333 ◽  
pp. 135509 ◽  
Author(s):  
M. Prokop ◽  
R. Kodym ◽  
T. Bystron ◽  
M. Drakselova ◽  
M. Paidar ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Degradation Kinetics ◽  
Dissolution Kinetics ◽  
Catalyst Layer ◽  
Pem Fuel Cell ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode ◽  
Kinetics Of ◽  
Fuel Cell Operation

A novel dual catalyst layer structured gas diffusion electrode for enhanced performance of high temperature proton exchange membrane fuel cell

2014 ◽  
Vol 246 ◽  
pp. 63-67 ◽  
Author(s):  
Huaneng Su ◽  
Ting-Chu Jao ◽  
Sivakumar Pasupathi ◽  
Bernard Jan Bladergroen ◽  
Vladimir Linkov ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Catalyst Layer ◽  
Gas Diffusion ◽  
Gas Diffusion Electrode ◽  
Proton Exchange ◽  
Exchange Membrane

scholarly journals A Kernel for Calculating PEM Fuel Cell Distribution of Relaxation Times

2021 ◽  
Vol 9 ◽  
Author(s):  
Andrei Kulikovsky
Keyword(s):  
Fuel Cell ◽  
Oxygen Transport ◽  
Relaxation Times ◽  
Catalyst Layer ◽  
Pem Fuel Cell ◽  
Negative Real Part ◽  
Gas Diffusion ◽  
Transport Processes ◽  
Transport Layer ◽  
Cathode Side

Impedance of all oxygen transport processes in PEM fuel cell has negative real part in some frequency domain. A kernel for calculation of distribution of relaxation times (DRT) of a PEM fuel cell is suggested. The kernel is designed for capturing impedance with negative real part and it stems from the equation for impedance of oxygen transport through the gas-diffusion transport layer (doi:10.1149/2.0911509jes). Using recent analytical solution for the cell impedance, it is shown that DRT calculated with the novel K2 kernel correctly captures the GDL transport peak, whereas the classic DRT based on the RC-circuit (Debye) kernel misses this peak. Using K2 kernel, analysis of DRT spectra of a real PEMFC is performed. The leftmost on the frequency scale DRT peak represents oxygen transport in the channel, and the rightmost peak is due to proton transport in the cathode catalyst layer. The second, third, and fourth peaks exhibit oxygen transport in the GDL, faradaic reactions on the cathode side, and oxygen transport in the catalyst layer, respectively.

A Model for High-Temperature PEM Fuel Cell: The Role of Transport in the Cathode Catalyst Layer

Fuel Cells ◽  
2012 ◽  
Vol 12 (4) ◽  
pp. 577-582 ◽  
Author(s):  
O. Shamardina ◽  
A. A. Kulikovsky ◽  
A. V. Chertovich ◽  
A. R. Khokhlov
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Catalyst Layer ◽  
Pem Fuel Cell ◽  
Cathode Catalyst ◽  
Cathode Catalyst Layer ◽  
High Temperature Pem
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