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| Content Provider | Springer Nature Link |
|---|---|
| Author | Garcia Araez, Nuria Climent, Victor Feliu, Juan M. |
| Copyright Year | 2007 |
| Abstract | The entropy of formation of the interface between a Pt(111) electrode and a 0.1-M HClO4 solution is calculated here for the first time from the temperature dependence of total charge vs potential curves following a thermodynamic analysis based on the electrocapillary equation. From this quantity, the absolute entropies of specifically adsorbed species (hydrogen and OH) can be estimated. The present method is an alternative treatment of data that overcomes some of the limitations involved in the approach that uses a generalized isotherm. However, it requires additional experimental data: the temperature coefficient of the potential of zero total charge of the working electrode and the temperature coefficient of the reference electrode. Comparison of the results obtained by both approaches shows that, for hydrogen adsorption, the agreement is reasonable, but the differences are larger for OH adsorption, thus showing the limitations inherent in the treatment based on the generalized isotherm. |
| Starting Page | 387 |
| Ending Page | 398 |
| Page Count | 12 |
| File Format | |
| ISSN | 14328488 |
| Journal | Journal of Solid State Electrochemistry |
| Volume Number | 12 |
| Issue Number | 4 |
| e-ISSN | 14330768 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2007-09-19 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Pt(111) electrode Entropy of formation of the interface Gibbs thermodynamics Hydrogen adsorption Hydroxyle adsorption Electronic and Computer Engineering Condensed Matter Characterization and Evaluation of Materials Industrial Chemistry/Chemical Engineering Analytical Chemistry Physical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry |
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