✦ LIBER ✦

The water content dependence of electro-osmotic drag in proton-conducting polymer electrolytes

✍ Scribed by Thomas A. Zawodzinski; John Davey; Judith Valerio; Shimshon Gottesfeld

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 725 KB
Volume: 40
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(94)00277-8

No coin nor oath required. For personal study only.

✦ Synopsis

The water transport numbers for protons in a variety of available poly (perfluorosulfonic acid) membranes are presented as a function of water content. The data indicate that, for membranes equilibrated with water vapor over a wide range of activities, a water drag coefficient of unity is observed. Several implications of these results, both fundamental and for fuel cell applications, are discussed.

📜 SIMILAR VOLUMES

The effect of water content on proton tr

The effect of water content on proton transport in polymer electrolyte membranes

✍ P. Commer; A.G. Cherstvy; E. Spohr; A.A. Kornyshev 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 220 KB 👁 1 views

## Abstract We investigate proton transport in a polymer electrolyte membrane using continuum theory and molecular dynamics (MD) computer simulations. Specifically our goal is to understand the possible molecular origin of the effect of water content on the activation energy (AE) and pre‐exponentia

Matrix chain-length dependence of the el

Matrix chain-length dependence of the electrochemistry of electroactive molecules in molten ionic conductive polymer electrolytes

✍ Gaoquan Shi; Gi Xue; Zhibin Wu; Biao Shen 📂 Article 📅 1992 🏛 Elsevier 🌐 English ⚖ 223 KB

Effect of Polymer Composition and Water

Effect of Polymer Composition and Water Content on Proton Conductivity in Vinyl Benzyl Phosphonic Acid—4-Vinyl Pyridine Copolymers

✍ Fengjing Jiang; Anke Kaltbeitzel; Birgit Fassbender; Gunther Brunklaus; Hongting 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 410 KB

## Abstract The proton conductivities of poly(vinylbenzyl phosphonic acid) (PVBPA) homopolymer and its statistical copolymers with 4‐vinyl pyridine [poly(VBPA‐__stat__‐4VP)s] are comprehensively studied in this work. Temperature and composition‐dependent “dry” proton conductivities of the copolymer

The dependence of ion-, proton-, water a

The dependence of ion-, proton-, water and electron-transport processes on solvent structure in aqueous electrolyte solutions

✍ R.A. Horne; R.A. Courant; D.S. Johnson 📂 Article 📅 1966 🏛 Elsevier Science 🌐 English ⚖ 644 KB

Compositional dependence of free volume

Compositional dependence of free volume in PAN/LiCF3SO3 polymer-in-salt electrolytes and the effect on ionic conductivity

✍ M. Forsyth; Jiazeng Sun; D. R. Macfarlane; A. J. Hill 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 214 KB 👁 2 views

The free volume behaviour of the polyacrylonitrile/lithium triflate system is investigated over the composition range 0 -75 wt % salt. The addition of salt, up to 45 wt %, to the PAN polymer substantially increases the free volume as measured by the orthopositronium pickoff lifetime, 3 . Beyond this

Effect of ion content in ionomer on the

Effect of ion content in ionomer on the ion conductivity of polymer electrolytes based on the P(MMA-co-LiMA)/PEG/LiCF3SO3 blend

✍ Kyoung-Hee Lee; Jung-Ki Park 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 152 KB 👁 2 views

We have prepared polymer electrolytes composed of poly(methyl methacrylate-co-lithium methacrylate) ionomer (P(MMA-co-LiMA)), low molecular weight PEG, and LiCF 3 SO 3 salt. The ion groups in P(MMA-co-LiMA) could enhance the miscibility between the MMA units and PEG in the polymer electrolytes. This