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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Taylor, A. H. Pearce, R. D. Brummer, S. B. |
| Copyright Year | 1971 |
| Abstract | The anodic oxidation of 0.1 M HCOOH on smooth Pt electrodes in 1 M H2SO4 at 40°C has been examined. An adsorbed material with a high coverage θorganic accumulates on the electrode over a wide potential range. The rate of adsorption is not limited by mass transport. A maximum coverage, θorganic= 0.73, is indicated at +0.30 V, and this falls to zero by 0.65 V (RHE). This material poisons the main HCOOH → CO2 reaction at all potentials. The main oxidation process at ⩽0.45 V (RHE) proceeds via an adsorbed intermediate which has not been isolated on the surface. Electron transfer is the rate-limiting step. At 0.55⩽E⩽0.75 V (RHE), adsorption of the intermediate is rate limiting and this is followed by fast electron transfer. The role of θorganic in inhibiting the main oxidation process is discussed. A possible electroactive solution species is suggested. |
| Starting Page | 801 |
| Ending Page | 808 |
| Page Count | 8 |
| File Format | |
| ISSN | 00147672 |
| Volume Number | 67 |
| Journal | Transactions of the Faraday Society |
| DOI | 10.1039/TF9716700801 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Electrode Adsorption |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Physical and Theoretical Chemistry Engineering |
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