✦ LIBER ✦

Anomalous transport phenomena in semihydrophobic fuel cell electrodes

✍ Scribed by Karel Micka

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 509 KB
Volume: 21
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(76)80022-9

No coin nor oath required. For personal study only.

✦ Synopsis

The so-called bubbling and weeping effects observed with porous semihydrophobic fuel cell electrodes are discussed in terms of gas transport in porous media. It is shown that the bubbling of gas on the electrolyte side can be accounted for by transport equations vahd in the intermediate region between ordinary and Knudsen diffusion. The anomalous transport of liquid toward the gas side IS attnbuted to isothermal distillation proceeding in the electrode pores. A gradient of the partial pressure of water vapour in the pores is the principal cause for both effects.

📜 SIMILAR VOLUMES

Hydrogen Mass Transport in Fuel Cell Gas

Hydrogen Mass Transport in Fuel Cell Gas Diffusion Electrodes

✍ J. St-Pierre 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 333 KB

An oxygen transport model derived for limiting current density operation was employed to explore its use for hydrogen transport. Limiting current data obtained from a variety of fuel cell designs (alkaline, proton exchange membrane, sulphuric acid) demonstrated the model's validity and allowed deter

Corrosion phenomena of alloys and electr

Corrosion phenomena of alloys and electrode materials in Molten Carbonate Fuel Cells

✍ P. Biedenkopf; M. M. Bischoff; T. Wochner 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 German ⚖ 703 KB

Water transport in the porous electrodes

Water transport in the porous electrodes of a hydrogen-oxygen fuel cell

✍ A. Khalidi; B. Lafage; P. Taxil; M.J. Clifton 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 490 KB

Statistical analysis of anomalous transp

Statistical analysis of anomalous transport phenomena in complex media

✍ Massimiliano Giona 📂 Article 📅 1991 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 483 KB 👁 2 views

Transport phenomena on complex media are characterized by a subdiffusive regime called anomalous diffusion (Sahimi, 1983;Rammal, 1984). Anomalous diffusion has been observed in porous media (Katz and Thompson, 1985), capillarity networks (Adler, 1985) and percolation beds (Stauffer, 1985). In the la

Thermo-mechanical phenomena in PEM fuel

Thermo-mechanical phenomena in PEM fuel cells

✍ Serguei Martemianov; Daniil Bograchev; Jean-Claude Grandidier; Jean-Jacques Kadj 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 356 KB 👁 1 views

Anomalous Oxidation States in Multilayer

Anomalous Oxidation States in Multilayers for Fuel Cell Applications

✍ James M. Perkins; Sarah Fearn; Stuart N. Cook; Rajagopalan Srinivasan; Chris M. 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 1007 KB

## Abstract Significant recent interest has been directed towards the relationship between interfaces and reports of enhanced ionic conductivity. To gain a greater understanding of the effects of hetero‐interfaces on ionic conductivity, advanced analytical techniques including electron microscopy (