Adsorption of cinchonidine on platinum: An electrochemical study

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The adsorption of cinchonidine (CD) on polycrystalline platinum surfaces in 0.5 mol dm-3 H2SO4 has been investigated. It has been found that adsorption is irreversible, desorption takes place at relatively high potentials simultaneously with the oxidation of CD molecules. According to our results CD covers only a part of the Pt surface and maximal coverage is influenced by the surface structure. Some assumptions for the site requirement of an adsorbed CD molecule have also been made.

Original languageEnglish
Pages (from-to)113-119
Number of pages7
JournalJournal of Electroanalytical Chemistry
Volume532
Issue number1-2
DOIs
Publication statusPublished - Sep 6 2002

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Platinum
Adsorption
Molecules
Surface structure
Desorption
Oxidation
cinchonidine

Keywords

  • Adsorption
  • Chiral modifier
  • Cinchonidine
  • Irreversible adsorption
  • Platinum

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Adsorption of cinchonidine on platinum : An electrochemical study. / Bakos, I.; Szabó, S.; Bartók, M.; Kálmán, E.

In: Journal of Electroanalytical Chemistry, Vol. 532, No. 1-2, 06.09.2002, p. 113-119.

Research output: Contribution to journalArticle

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AB - The adsorption of cinchonidine (CD) on polycrystalline platinum surfaces in 0.5 mol dm-3 H2SO4 has been investigated. It has been found that adsorption is irreversible, desorption takes place at relatively high potentials simultaneously with the oxidation of CD molecules. According to our results CD covers only a part of the Pt surface and maximal coverage is influenced by the surface structure. Some assumptions for the site requirement of an adsorbed CD molecule have also been made.

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