The adsorption of coumarin at solid metal electrodes

✍ Scribed by L.K. Partridge; A.C. Tansley; A.S. Porter

• Publisher: Elsevier Science
• Year: 1967
• Tongue: English
• Weight: 433 KB
• Volume: 12
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(67)80072-0

✦ Synopsis

The effect of coumarin on the "deposition potential" of a number of metals at solid metal surfaces has been compared with that at a dropping mercury electrode. These results have been used to interpret the adsorption of coumarin on different metal surfaces and to suggest that Tl+ and Pb*+ ions are specifically adsorbed on mercury and that Tl+, Co *+, adsorbed on their parent metals. Fe*+, Ni*+ and ZnB+ are speci&cally R&sm&--L'effet de la coumarine sur le potentiel de d6position metallique a certaines surfaces mCtalliq ues solides a 6t6 compar6 a l'effet a la surface du mercure. Au moyen de ces rtsultats, on a interpr6tC l'adsorption de la coumarine aux surfaces m&alliques. On suggere aussi que Tl+ et Pb'f s'adsorbent sp6cifiquement au mercure et que Tl+, Co*+, FeB+ Nia+ et Zna+ s'adsorbent sp6ctiquement aux metaux desquels ils d6rivent. Zosammenfassung-Der Effekt des Kumarins auf die Metallabscheidungspotentiale verschiedener Metalle an festen Metalloberl%chen wird mit dem Effekt an der Quecksilbertrop electrode verglichen. Diese Ergebnisse werden benutzt, um die Kumarinadsorption an Metalloberfachen zu erkhiren. Es wird such vorgeschlagen,