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http://hdl.handle.net/1942/26151
Title: | Electrocatalytic Behavior of Pd and Pt Nanoislands Deposited onto 4,4′-Dithiodipyridine SAMs on Au(111) | Authors: | Müller, Heiko Metzler, Martin Barth, Natalie CONINGS, Bert BOYEN, Hans-Gerd Jacob, Timo Kibler, Ludwig A. |
Issue Date: | 2018 | Source: | Electrocatalysis, 9(4), p. 505-513 | Abstract: | Using different electrochemical techniques as well as in situ scanning tunneling microscopy (STM) and ultraviolet photoelectron spectroscopy (UPS), we investigated the electrocatalytic oxidation of carbon monoxide and methanol on palladium and on platinum nanoislands, which were deposited onto 4,4′-dithiodipyridine self-assembled monolayers (SAMs) on Au(111) single crystal electrodes. Electrochemical and morphological measurements performed on these monoatomic high metal deposits on top of the SAM show rather different island growth along with variations in metal coverage and particle size. UPS He-II valence band spectra of all Pt deposits reveal no intensity at the Fermi energy, so that the resulting nanoislands can be considered as nonmetallic. While the electronic and structural properties do not affect carbon monoxide adsorption, the metal coverage has a tremendous impact on the catalytic activity regarding CO oxidation as well as methanol oxidation. | Notes: | Kibler, L (reprint author), Univ Ulm, Inst Elektrochem, D-89069 Ulm, Germany. ludwig.kibler@uni-ulm.de | Keywords: | electrocatalysis; self-assembled monolayers; metallization; CO oxidation; methanol oxidation | Document URI: | http://hdl.handle.net/1942/26151 | ISSN: | 1868-2529 | e-ISSN: | 1868-5994 | DOI: | 10.1007/s12678-018-0467-1 | ISI #: | 000434639900010 | Rights: | (C) Springer Science+Business Media, LLC, part of Springer Nature 2018 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2019 |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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manuscript.pdf | Peer-reviewed author version | 1.1 MB | Adobe PDF | View/Open |
Electro.pdf Restricted Access | Published version | 1.77 MB | Adobe PDF | View/Open Request a copy |
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