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Title:Correlation of Structure and Electrochemical Reactivity at Underpotentially Deposited Modified Gold(111) Surfaces
Author(s):Hsieh, Show-Jon
Doctoral Committee Chair(s):Gewirth, Andrew A.
Department / Program:Chemistry
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Chemistry, Physical
Abstract:Reactivity studies of the effect of SCN-, a weaker anion than I-, on the peroxide reduction catalyzed by Pb underpotential deposition (upd) on Au(111) revealed that SCN- decreases the catalytic peroxide reduction activity. The decrease in reactivity due to SCN- exhibited Langmuir behavior. STM studies reveal that islands of two different heights emerge following addition of SCN-. One type of islands is of the same composition prior to SCN- addition. The other type of island exhibits open Pb structures resulting from Pb and SCN- interactions. The open Pb structure exhibits a linear motif, a pattern that is uncommon among upd systems on hexagonal substrates.
Issue Date:2001
Description:169 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001.
Other Identifier(s):(MiAaPQ)AAI3023079
Date Available in IDEALS:2015-09-25
Date Deposited:2001

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