Direct ESR and spin trapping methods for the detection and identification of radical fragments in Nafion membranes and model compounds exposed to oxygen radicals

Fragmentation of Fluorinated Model Compo

Fragmentation of Fluorinated Model Compounds Exposed to Oxygen Radicals: Spin Trapping ESR Experiments and Implications for the Behaviour of Proton Exchange Membranes Used in Fuel Cells

✍ M. Danilczuk; F. D. Coms; S. Schlick 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 499 KB 👁 1 views

## Abstract Low‐molecular weight model compounds (MCs) for Nafion membranes used in fuel cells were exposed at 300 K to ^·^OH radicals produced by UV irradiation of aqueous H~2~O~2~ solutions. The MCs contained fluorinated and partially fluorinated groups terminated by sulphonic or carboxylic acid