✦ LIBER ✦

The effect of electrode parameters on the performance of anion exchange polymer membrane fuel cells

✍ Scribed by M. Mamlouk; K. Scott; J.A. Horsfall; C. Williams

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 517 KB
Volume: 36
Category: Article
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2011.03.074

No coin nor oath required. For personal study only.

✦ Synopsis

An investigation of several electrode parameters on performance of an alkaline membrane fuel cell is described. The studied parameters were: ionomer content, anode and cathode catalyst layer thickness, electrode aminating agent and membrane thickness.

It was found that an optimum ionomer content depended on a balance between the OH À ion/water mobility and the oxygen solubility/diffusivity through it and which varied with temperature. Thick catalyst layers were necessary for the anode as thin anode catalyst layers suffered from flooding. 40%Pt/C provided the best thickness (with loading of 0.4 mg Pt cm À2 ) for cathodes operating with air.

An aminated low density poly(ethylene-co-vinyl benzyl chloride) (LDPE-VBC) membrane was shown to be a good membrane for an alkaline membrane fuel cell, giving conductivities up to 0.13 S cm À1 at 80 C. A Membrane Electrode Assembly (MEA) utilizing this membrane with fully hydrated thickness of 57 mm produced good peak power density, at a high potential of 500 mV, of 337 mW cm À2 with air (1 bar gauge) at 60 C.

📜 SIMILAR VOLUMES

The effects of pinholes on proton exchan

The effects of pinholes on proton exchange membrane fuel cell performance

✍ Weizhong Lü; Zhixiang Liu; Cheng Wang; Zongqiang Mao; Milin Zhang 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 384 KB 👁 2 views

Pinholes in the membrane electrode assembly (MEA) of a fuel cell can lead to premature fuel cell failure. The main causes for pinhole formation are contaminant particles, non-uniform stress distribution, and membrane corrosion. In this paper fuel cell performance is compared before and after piercin

Effects of Ozone on the Performance of a

Effects of Ozone on the Performance of a Polymer Electrolyte Membrane Fuel Cell

✍ L. Franck-Lacaze; C. Bonnet; S. Besse; F. Lapicque 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 733 KB

## Abstract The effects of ozone at concentrations near 1000 vppm in air on the performance of a single polymer electrolyte membrane fuel cell (PEMFC) were investigated. Ozone was injected to the cathode alternately with far longer operation periods at 0.54 A cm^–2^ with ozone‐free air. Impedance s

Effects of Humidification on the Membran

Effects of Humidification on the Membrane Electrode Assembly of Proton Exchange Membrane Fuel Cells at Relatively High Cell Temperatures

✍ K.-M. Yin; C.-P. Chang 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 760 KB

## Abstract This study focuses on the performances of proton exchange membrane fuel cells (PEMFCs) at 80 and 90 °C with feeds of varying degrees of humidification. The results show that ohmic resistance of the solid electrolyte decreases as the current density is raised because of the back diffusio

On the polarization of ion-exchange memb

On the polarization of ion-exchange membrane fuel cells

✍ Y. Matsuda; J. Shiokawa; H. Tamura; T. Ishino 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 382 KB

The polarization characteristics of ion-exchange membrane fuel cells operating with hydrogen and oxygen were studied. During operation, activation polarization at low current densities was observed at the oxygen electrode for both anion-and cation-exchange membrane fuel cells. Concentration polariza

Optimization of the performance of polym

Optimization of the performance of polymer electrolyte fuel cell membrane-electrode assemblies: Roles of curing parameters on the catalyst and ionomer structures and morphology

✍ Anima B. Bose; Ruhulla Shaik; Jennifer Mawdsley 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 846 KB

In order to understand the origin of performance variations in polymer electrolyte membrane fuel cells (PEMFCs), a series of membrane-electrode assemblies (MEAs) with identical electrode layer compositions were prepared using different electrode curing conditions, their performances were evaluated,

Effect of CO2, HCO3− and CO3−2 on oxygen

Effect of CO2, HCO3− and CO3−2 on oxygen reduction in anion exchange membrane fuel cells

✍ Jose A. Vega; William E. Mustain 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 721 KB

The effect of carbonate and bicarbonate anions on the oxygen reduction reaction was investigated in four alkaline solutions (pH ∼ 14) on a Pt disk type electrode with varying concentrations of carbonate and bicarbonate. The addition of carbonate and bicarbonate had two primary effects on the observe