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Size dependent lattice constant change of thiol self-assembled monolayer modified Au nanoclusters studied by grazing incidence x-ray diffraction

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Title: Size dependent lattice constant change of thiol self-assembled monolayer modified Au nanoclusters studied by grazing incidence x-ray diffraction
Authors: Kondo, Toshihiro Browse this author
Masuda, Takuya Browse this author
Harada, Motoko Browse this author
Sakata, Osami Browse this author
Katsuya, Yoshio Browse this author
Uosaki, Kohei Browse this author →KAKEN DB
Keywords: Gold nanoclusters (GNCs)
Size dependence of lattice constant of GNCs
Grazing incidence x-ray diffraction (GIXRD)
Self-assembled monolayer (SAM)
Issue Date: Apr-2016
Publisher: Elsevier
Journal Title: Electrochemistry Communications
Volume: 65
Start Page: 35
End Page: 38
Publisher DOI: 10.1016/j.elecom.2016.02.007
Abstract: Size and lattice constant of thiol self-assembledmonolayer (SAM)-modified gold nanoclusters (GNCs) assembled on Au(111) surfaces after each electrochemical treatment were investigated using grazing incidence x-ray diffraction (GIXRD). When the potential was swept between 0 and 1.3 V (vs. Ag/AgCl), the size and lattice constant of GNCs slightly decreased due to the oxidative desorption of the SAMs. As the number of potential cycles increased, the size of GNCs started to increase due to the aggregation, while the lattice constant continued to decrease due to further desorption of the SAMs from the GNCs. After most of the SAMs were removed from the GNCs, the size and lattice constant monotonically increasedwith the number of potential cycles. The size dependent lattice constant change was observed when GNCs were smaller than similar to 35 angstrom.
Rights: © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/68644
Appears in Collections:総合化学院 (Graduate School of Chemical Sciences and Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 魚崎 浩平

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