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

• Takakusagi, Satoru

• Nojima, Hirotaka

• Ariga, Hiroko

• Uehara, Hiromitsu

• Miyazaki, Kotaro

• Chun, Wang-Jae

• Iwasawa, Yasuhiro

• Asakura, Kiyotaka

抄録

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.

収録刊行物

• Physical Chemistry Chemical Physics

  Physical Chemistry Chemical Physics 15 (33), 14080-14088, 2013-06

  Royal Society of Chemistry

キーワード

• Physical and Theoretical Chemistry
• General Physics and Astronomy

詳細情報

• CRID: 1050564288967849600
• NII論文ID: 120005451566
• DOI: 10.1039/c3cp51425k
• ISSN: 14639084
• ISSN: 14639076
• HANDLE: 2115/56469
• Web Site: http://pubs.rsc.org/en/content/articlepdf/2013/CP/C3CP51425K
• 本文言語コード: en
• 資料種別: journal article
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