Effects of tungsten oxide addition on the electrochemical performance of nanoscale tantalum oxide-based electrocatalysts for proton exchange membrane (PEM) fuel cells

Sulfonated PEEK-WC membranes for proton-

Sulfonated PEEK-WC membranes for proton-exchange membrane fuel cell: Effect of the increasing level of sulfonation on electrochemical performances

✍ Angelo Basile; Luca Paturzo; Adolfo Iulianelli; Irene Gatto; Enza Passalacqua 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 443 KB

Sulfonation of PEEK-WC powder (a glassy poly-ether ether ketone) has been performed at 80 • C for 3 h using H 2 SO 4 conc. (96%). The degree of sulfonation varied from 15 to 40%, depending on the reaction time. The sulfonated polymers (S-PEEK-WC) were used to prepare dense membranes for possible fue