✦ LIBER ✦

Pore scale modeling of a proton exchange membrane fuel cell catalyst layer: Effects of water vapor and temperature

✍ Scribed by Kyle J. Lange; Pang-Chieh Sui; Ned Djilali

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 746 KB
Volume: 196
Category: Article
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2010.11.118

No coin nor oath required. For personal study only.

✦ Synopsis

A pore scale model of a polymer electrolyte membrane (PEM) fuel cell cathode catalyst layer is developed which accounts for species transport, electrochemical reactions and thermal transport. Effective transport parameters are computed over a range of operating conditions including the effective oxygen diffusivity, effective water vapor diffusivity, effective proton conductivity, effective electron conductivity and the effective thermal conductivity. In addition, the total amount of oxygen consumption is computed for different operating conditions. Finally, a critical assessment of the impact of assumptions made in the absence of detailed morphological data is presented.

📜 SIMILAR VOLUMES

Prediction of the effective conductivity

Prediction of the effective conductivity of Nafion in the catalyst layer of a proton exchange membrane fuel cell

✍ Kitiya Hongsirikarn; Xunhua Mo; Zhiming Liu; James G. Goodwin Jr. 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 601 KB

In a previous study, a simple acid catalyzed reaction (esterification) was found to predict excellently conductivity of a membrane contaminated with NH 4 + or Na + . Since measurement of the conductivity of Nafion in a catalyst layer is problematic, being able to predict this conductivity for variou

Numerical analysis of catalyst agglomera

Numerical analysis of catalyst agglomerates and liquid water transport in proton exchange membrane fuel cells

✍ Chi-Young Jung; Chi-Hoon Park; Young-Moo Lee; Wha-Jung Kim; Sung-Chul Yi 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 871 KB

A two-dimensional computational fluid dynamics model of a proton exchange membrane fuel cell (PEMFC) was formulated by taking into account the liquid water transport through the membrane electrode assembly (MEA) on the basis of the agglomerate catalyst framework. Various modes of water transport in

Fractal model for prediction of effectiv

Fractal model for prediction of effective thermal conductivity of gas diffusion layer in proton exchange membrane fuel cell

✍ Ying Shi; Jinsheng Xiao; Shuhai Quan; Mu Pan; Runzhang Yuan 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 303 KB

The effects of excess phosphoric acid in

The effects of excess phosphoric acid in a Polybenzimidazole-based high temperature proton exchange membrane fuel cell

✍ Saif Matar; Andrew Higier; Hongtan Liu 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 1018 KB

Development of a Micro-Structured Methan

Development of a Micro-Structured Methanol Fuel Processor Coupled to a High-Temperature Proton Exchange Membrane Fuel Cell

✍ G. Kolb; K.-P. Schelhaas; M. Wichert; J. Burfeind; C. Heßke; G. Bandlamudi 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 764 KB

Effect of Various Hydrophobic Concentrat

Effect of Various Hydrophobic Concentrations and Base Weights of Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells

✍ J.-H. Lin; T.-H. Ko; W.-S. Kuo; Y.-H. Lin; C.-C. Huang; W.-C. Chen 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 257 KB

## Abstract This study investigates the gas permeability, conductivity and performance of two types of gas diffusion layer (90 g m^–2^ and 190 g m^–2^) with various hydrophobic treatments. The performance is measured using a single proton exchange membrane fuel cell (PEMFC) with an active area of 2