Приказ основних података о документу
Hydrogen evolution on platinum in the presence of lead, cadmium and thallium adatoms
dc.creator | Adžić, Radoslav R. | |
dc.creator | Spasojević, M. D. | |
dc.creator | Despić, Aleksandar R. | |
dc.date.accessioned | 2019-04-27T16:12:39Z | |
dc.date.available | 2019-04-27T16:12:39Z | |
dc.date.issued | 1979 | |
dc.identifier.issn | 0013-4686 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/2751 | |
dc.description.abstract | Hydrogen evolution on rotating platinum electrode has been measured in the presence of Pb, Tl and Cd adatoms. At low coverages of these adatoms (θM < 0.5) the mechanism of H2 evolution is the same as that for Pt, giving rise to the Tafel slope of 30 mV with recombination of H adatoms as a rate controlling step. However, H2 evolution decreases with θM to the fourth power, due to a simple blocking of Pt surface and a decrease of number of pairs of Pt atoms necessary for a recombination reaction. At higher coverages of foreign metal adatoms (θM ≥ 0.5), when the activation energy for the recombination of H adatoms becomes too high, the ion-plus atom reaction begins to control the rate of reaction. The Tafel slope acquires a value of 120 mV. Now, a decrease of H2 evolution has been found proportional to the coverage of metal adatoms. A quantitative analysis based on above model agrees very well with the experiment. Some information on underpotential deposition of above metal on Pt has also been obtained. © 1979. | en |
dc.publisher | Pergamon Press | |
dc.relation | Council of Yugoslav Academies of Sciences | |
dc.relation | National Academy of Science. | |
dc.relation | Research Fund of Serbia | |
dc.relation | Serbian Academy of Sciences | |
dc.rights | restrictedAccess | |
dc.source | Electrochimica Acta | |
dc.source | Electrochimica Acta | |
dc.title | Hydrogen evolution on platinum in the presence of lead, cadmium and thallium adatoms | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Деспић, A. Р.; Спасојевић, М. Д.; Aджић, Р. Р.; | |
dc.rights.holder | Elsevier | |
dc.citation.volume | 24 | |
dc.citation.issue | 5 | |
dc.citation.spage | 569 | |
dc.citation.epage | 576 | |
dc.identifier.doi | 10.1016/0013-4686(79)85034-3 | |
dc.identifier.scopus | 2-s2.0-0005792041 | |
dc.type.version | publishedVersion |