Studies of the electrochemical oxidation of methanol on platinum in phosphoric acid solution
β Scribed by D.N. Upadhyay; V. Yegnaraman; G. Prabhakara Rao
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 276 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0378-7753
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β¦ Synopsis
The oxidation behaviour of methanol on platinum at room temperature in a low concentration of phosphoric acid ( -~ 5%) has been studied. Voltammetric behaviour in phosphoric acid medium is compared with that in perchloric acid. The effect of a bismuth underpotential deposition (upd) layer on the oxidation of methanol is also reported.
Experimental
A glass three-electrode cell was used. The working electrode was a polycrystaUine platinum disc of area 0.283 cm 2. The electrode surface was
π SIMILAR VOLUMES
The adsorptlon and oxldatlon of acetaldehyde at polycrystalhne platmum In perchlonc acid solution was studled by IFI SI~U SNIFTIR-spectroscopy Carbon dloxlde and acetlc acid were ldentdied m the thm layer as soluble oxidation products m concentrated acetaldehyde solutions At low acetaldehyde concent
An experimental program was conducted to investigate the catalytic activity of platinum black and platinum supported on carbon for the electrochemical reduction of oxygen in 99 wt% phosphoric acid at 177'C as a function of platinum surface area. The activity of platinum was found to approximately do