A Pore-Filling Electrolyte Membrane-Electrode Integrated System for a Direct Methanol Fuel Cell Application

2002 ◽  
Vol 149 (11) ◽  
pp. A1448 ◽  
Author(s):  
Takeo Yamaguchi ◽  
Masaya Ibe ◽  
Balagopal N. Nair ◽  
Shin-ichi Nakao
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Integrated System ◽  
Membrane Electrode ◽  
Pore Filling ◽  
Electrolyte Membrane ◽  
Fuel Cell Application ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Nanoimprint of Polymer Electrolyte Membrane for Micro Direct Methanol Fuel Cell Application

2019 ◽  
Vol 16 (26) ◽  
pp. 11-17 ◽  
Author(s):  
Yi Zhang ◽  
Jian Lu ◽  
Qing Wang ◽  
Masakaru Takahashi ◽  
Toshihiro Itoh ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Direct Methanol Fuel Cell ◽  
Polymer Electrolyte Membrane ◽  
Electrolyte Membrane ◽  
Fuel Cell Application ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Critique and Improvement of a One-Dimensional Semianalytical Model of a Direct Methanol Fuel Cell

2012 ◽  
Vol 9 (5) ◽  
Author(s):  
C. C. Kuo ◽  
W. E. Lear ◽  
J. H. Fletcher ◽  
O. D. Crisalle
Keyword(s):  
Fuel Cell ◽  
Polarization Curve ◽  
Current Density ◽  
Direct Methanol Fuel Cell ◽  
Membrane Electrode Assembly ◽  
Membrane Electrode ◽  
One Dimensional ◽  
Implicit Equation ◽  
Direct Methanol ◽  
Methanol Fuel Cell

A constructive critique and a suite of proposed improvements for a recent one-dimensional semianalytical model of a direct methanol fuel cell are presented for the purpose of improving the predictive ability of the modeling approach. The model produces a polarization curve for a fuel cell system comprised of a single membrane-electrode assembly, based on a semianalytical one-dimensional solution of the steady-state methanol concentration profile across relevant layers of the membrane electrode assembly. The first improvement proposed is a more precise numerical solution method for an implicit equation that describes the overall current density, leading to better convergence properties. A second improvement is a new technique for identifying the maximum achievable current density, an important piece of information necessary to avoid divergence of the implicit-equation solver. Third, a modeling improvement is introduced through the adoption of a linear ion-conductivity model that enhances the ability to better match experimental polarization-curve data at high current densities. Fourth, a systematic method is advanced for extracting anodic and cathodic transfer-coefficient parameters from experimental data via a least-squares regression procedure, eliminating a potentially significant parameter estimation error. Finally, this study determines that the methanol concentration boundary condition imposed on the membrane side of the membrane-cathode interface plays a critical role in the model’s ability to predict the limiting current density. Furthermore, the study argues for the need to carry out additional experimental work to identify more meaningful boundary concentration values realized by the cell.

Titanium carbide-derived carbon as a novel support for platinum catalysts in direct methanol fuel cell application

2012 ◽  
Vol 199 ◽  
pp. 22-28 ◽  
Author(s):  
Alicja Schlange ◽  
Antonio Rodolfo dos Santos ◽  
Benjamin Hasse ◽  
Bastian J.M. Etzold ◽  
Ulrich Kunz ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Titanium Carbide ◽  
Direct Methanol Fuel Cell ◽  
Platinum Catalysts ◽  
Fuel Cell Application ◽  
Direct Methanol ◽  
Carbide Derived Carbon ◽  
Methanol Fuel Cell
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