Numerical analysis of the manipulated high performance catalyst layer design for polymer electrolyte membrane fuel cell

A two‐dimensional, multiphase, non‐isothermal numerical model was used to investigate the effect of the high performance catalyst layer (CL) design. Microstructure‐related parameters were studied on the basis of the agglomerate model assumption. A conventional CL design (uniform Pt/C composition, e.g., 40 wt%) was modified into two sub‐layers with two different Pt/C compositions (in this study, 40 and 80 wt%). The performance of sub‐layers with different CL designs is shown to be different. Simulation results show that substituting part of the Pt/C 40 wt% with Pt/C 80 wt% increases the cell performance. It was found that factors including proton conductivity, open circuit voltage, and sub‐layer thickness have a significant impact on overall cell performance. Different water distribution for different membrane electrode assembly designs was also observed in the simulation results. More liquid water accumulation inside the membrane electrode assembly is seen when the Pt/C 80 wt% sub‐layer is next to the gas diffusion layer. Finally, several key design parameters for the proposed high performance CL design including agglomerate radius, Nafion thin film thickness, and the Nafion volume fraction within the agglomerate in terms of CL fabrication were identified on the basis of our simulation results. Copyright © 2014 John Wiley & Sons, Ltd.

[1]  Frano Barbir,et al.  PEM Fuel Cells: Theory and Practice , 2012 .

[2]  Zhong‐sheng Liu,et al.  Effects of catalyst layer structure and wettability on liquid water transport in polymer electrolyte membrane fuel cell , 2011 .

[3]  A. Su,et al.  High performance proton exchange membrane fuel cell electrode assemblies , 2010 .

[4]  Xianguo Li,et al.  On the modeling of water transport in polymer electrolyte membrane fuel cells , 2009 .

[5]  S. Yi,et al.  Computational analysis of polarizations in membrane-electrode-assembly for proton exchange membrane fuel cells , 2009 .

[6]  D. H. Schwarz,et al.  Three‐dimensional modelling of catalyst layers in PEM fuel cells: Effects of non‐uniform catalyst loading , 2009 .

[7]  Li Jia,et al.  Parametric study of the porous cathode in the PEM fuel cell , 2009 .

[8]  Xianguo Li,et al.  A parametric study of multi‐phase and multi‐species transport in the cathode of PEM fuel cells , 2008 .

[9]  Lijun Yu,et al.  Transport mechanisms and performance simulation of a PEM fuel cell , 2008 .

[10]  Trung Van Nguyen,et al.  Three-Dimensional Simulation of Liquid Water Distribution in a PEMFC with Experimentally Measured Capillary Functions , 2007 .

[11]  C. H. Cheng,et al.  Computer simulation of hydrogen proton exchange membrane and direct methanol fuel cells , 2007, Comput. Chem. Eng..

[12]  Trung Van Nguyen,et al.  A Two-Dimensional Two-Phase Model of a PEM Fuel Cell , 2006 .

[13]  D. Noble,et al.  Simplified models for predicting the onset of liquid water droplet instability at the gas diffusion layer/gas flow channel interface , 2005 .

[14]  K. Karan,et al.  An improved two-dimensional agglomerate cathode model to study the influence of catalyst layer structural parameters , 2005 .

[15]  Titichai Navessin,et al.  A method for optimizing distributions of Nafion and Pt in cathode catalyst layers of PEM fuel cells , 2005 .

[16]  Michael Eikerling,et al.  Functionally graded cathode catalyst layers for polymer electrolyte fuel cells - I. Theoretical modeling , 2004 .

[17]  Hirofumi Daiguji,et al.  The Structure of Catalyst Layers and Cell Performance in Proton Exchange Membrane Fuel Cells , 2004 .

[18]  Nathan P. Siegel,et al.  A two-dimensional computational model of a PEMFC with liquid water transport , 2004 .

[19]  Ned Djilali,et al.  THREE-DIMENSIONAL COMPUTATIONAL ANALYSIS OF TRANSPORT PHENOMENA IN A PEM FUEL CELL , 2002 .

[20]  Xianguo Li,et al.  Composition and performance modelling of catalyst layer in a proton exchange membrane fuel cell , 1999 .

[21]  Edson A. Ticianelli,et al.  Oxygen electrocatalysis on thin porous coating rotating platinum electrodes , 1998 .

[22]  P. Ekdunge,et al.  Modelling the PEM fuel cell cathode , 1997 .

[23]  Mark W. Verbrugge,et al.  A Mathematical Model of the Solid‐Polymer‐Electrolyte Fuel Cell , 1992 .

[24]  T. Springer,et al.  Polymer Electrolyte Fuel Cell Model , 1991 .

[25]  W. R. Grove Esq.,et al.  XXIV. On voltaic series and the combination of gases by platinum , 1839 .