✦ LIBER ✦
Investigation of radiation-grafted PVDF-g-polystyrene-sulfonic-acid ion exchange membranes for use in hydrogen oxygen fuel cells
✍ Scribed by Sara D Flint; Robert C.T Slade
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 509 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0167-2738
No coin nor oath required. For personal study only.
✦ Synopsis
Proton-exchange membranes were synthesised by electron beam irradiation of poly(vinylidenefluoride) (PVDF) films (80 mm) followed by styrene graft polymerisation and sulfonation. Physical and electrochemical properties of the membranes were investigated. The membranes were tested as electrolytes in fuel cell conditions (humidified H / O , T 5 20-608C, 2 2 ambient pressure); emfs of ca. 0.85 V were observed during operation for . 150 h. The conductivity of PVDF-g-pssa (30% 21 2 graft) electrolyte membranes at 238C is 0.03 S cm with an overall cell resistance of 6.5 ohm cm under fuel cell conditions.