Electroreduction of oxygen on reduced platinum in 85% phosphoric acid
โ Scribed by W.E. O'Grady; E.J. Taylor; S. Srinivasan
- Publisher
- Elsevier Science
- Year
- 1982
- Weight
- 933 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0022-0728
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๐ SIMILAR VOLUMES
The influence of particle size on the reduction of oxygen on supported platinum (Pt) electrocatalysts (Pt on carbon black) in phosphoric acid was investigated. The results confirm earlier evidence that indicates the mass activity (A g-' Pt) and specific activity bA cmm2 Pt) of Pt at 900 mV (us rhe)
The oxygen electroreduction reaction (OERR) kinetics at (111)-and (100)-type Pt electrodes has been studied in aqueous 1.0 M H2SO, solutions in the 8-62ยฐC range. On both Pt electrodes and at all temperatures, two Tafel regions have been observed. The Tafel slope in the low current density range is -