Microstructure of Pt electrodes and its influence on the oxygen transfer kinetics
β Scribed by S.P.S. Badwal; F.T. Ciacchi
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 693 KB
- Volume
- 18-19
- Category
- Article
- ISSN
- 0167-2738
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Two diametrically different pH dependences have been reported for oxygen reduction at prereduced Pt electrodes. In the current density (cd) region with the Tafel slope of -2.3RT/F, the pH dependence expressed as dE/dpH is, according to one group of workers, -90 mV, ie -3 x 2.3 RT/(2F) and -30 mV, ie
Oxygen reduction on Pt supported on carbon black in PTFE-bonded porous electrodes in 98% H,PO, at 170Β°C was investigated. The influence of the Pt surface area and the volume of H,PO, in the electrode structure (per cent acid occupation, PAO) on the performance of porous electrodes (ie current-potent