Influence of Decomposition Products from Perfluorosulfonic Acid Membrane on Fuel Cell Performance
| Autor: | Akihiro Kabasawa, Masahiro Watanabe, Hiroyuki Uchida |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Aqueous solution
Chemistry General Chemical Engineering Sulfuric acid Decomposition Redox Cathode law.invention chemistry.chemical_compound Membrane Adsorption Chemical engineering law Electrochemistry Perfluorosulfonic acid Organic chemistry General Materials Science Electrical and Electronic Engineering Physical and Theoretical Chemistry |
| Zdroj: | Electrochemical and Solid-State Letters. 11:B190 |
| ISSN: | 1099-0062 |
| DOI: | 10.1149/1.2964924 |
| Popis: | The influence of decomposition products from perfluorosulfonic acid (PFSA) membrane on fuel cell performance was investigated by a proposed method. Aqueous solutions of various model compounds, acting as possible decomposition products from the PFSA membrane, were injected directly into a pristine cell, and changes in the cell performance were measured. The injection of sulfuric acid (SA) and perfluorocarboxylic acids (PFCAs) decreased the cell voltage, which was attributed to a decrease in the mass activity for the oxidation reduction reaction (ORR). It was found that specifically adsorbed SA and PFCAs blocked the ORR at practical cathode potentials (>0.6 V). |
| Databáze: | OpenAIRE |
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