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Description
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 |
Discipline: | Chemistry |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
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 |
Type: | Text |
Language: | English |
Description: | 169 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001. |
URI: | http://hdl.handle.net/2142/84041 |
Other Identifier(s): | (MiAaPQ)AAI3023079 |
Date Available in IDEALS: | 2015-09-25 |
Date Deposited: | 2001 |
This item appears in the following Collection(s)
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Dissertations and Theses - Chemistry
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Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois