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Fine tuning and orientation control of surface Cu complexes on TiO2(110) premodified with mercapto compounds: the effect of different mercapto group positions

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Title: Fine tuning and orientation control of surface Cu complexes on TiO2(110) premodified with mercapto compounds: the effect of different mercapto group positions
Authors: Takakusagi, Satoru Browse this author →KAKEN DB
Nojima, Hirotaka Browse this author
Ariga, Hiroko Browse this author
Uehara, Hiromitsu Browse this author
Miyazaki, Kotaro Browse this author
Chun, Wang-Jae Browse this author
Iwasawa, Yasuhiro Browse this author
Asakura, Kiyotaka Browse this author →KAKEN DB
Issue Date: Jun-2013
Publisher: Royal Society of Chemistry
Journal Title: Physical Chemistry Chemical Physics
Volume: 15
Issue: 33
Start Page: 14080
End Page: 14088
Publisher DOI: 10.1039/c3cp51425k
PMID: 23860733
Abstract: Three-dimensional structures of vacuum-deposited Cu species formed on TiO2(110) surfaces premodified with three mercaptobenzoic acid (MBA) isomers were studied using polarization-dependent total reflection fluorescence X-ray absorption fine structure (PTRF-XAFS). We explored the possibility of fine tuning and orientation control of the surface Cu structures, including their coordination and configuration against the surface, according to the different mercapto group positions of the three MBA isomers (o(-), m(-), and p-MBA). Almost linear S-Cu-O (lattice O of TiO2) surface compounds were formed on the three MBA-modified TiO2(110) surfaces; however, the orientation of the Cu species on the o- and m-MBA-modified TiO2(110) surfaces (40-45 degrees inclined from the surface normal) was different from that on the p-MBA-modified TiO2(110) surface (60 degrees from the surface normal). This work suggests that the selection of a different MBA isomer for premodification of a single crystal TiO2(110) surface enables fine tuning and orientation control of surface Cu complexes.
Type: article (author version)
URI: http://hdl.handle.net/2115/56469
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高草木 達

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