Characterization of Metal Oxide Surfaces and Adsorbed Water Layers in Aqueous Environment
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- OGINO Toshio
- Yokohama National University
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- YAMAZAKI Kenji
- Yokohama National University
Bibliographic Information
- Other Title
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- 溶液中の金属酸化物表面と吸着水の構造評価
- ヨウエキ チュウ ノ キンゾク サンカブツ ヒョウメン ト キュウチャクスイ ノ コウゾウ ヒョウカ
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Description
Since metal oxide surfaces are chemically stable in aqueous solutions, their atomic structures and chemical properties can be utilized in nanofabrication and nano-biotechnology in aqueous environment. This article describes phenomena related to water layers on single-crystalline metal oxide surfaces. On sapphire (0001) surfaces, domain structures with different hydrophilicity and charged states are spontaneously formed during thermal annealing. This surface exhibits domain-selective adsorption of protein molecules. Phase separation on metal oxide surfaces is classified into structural and chemical ones. On the chemically phase-separated surfaces, terraces with different surface chemistry coexist. Surface chemistry in aqueous environment can be characterized by adsorption force measurement of a tip to the substrate surface using atomic force microscopy (AFM). Water layers on a metal oxide surface can be observed by AFM by attaching graphene films to the oxide surface. Chemical phase separation on titania (100) surfaces is also demonstrated.
Journal
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- Hyomen Kagaku
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Hyomen Kagaku 33 (6), 339-344, 2012
The Surface Science Society of Japan
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Details 詳細情報について
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- CRID
- 1390001206458092800
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- NII Article ID
- 10030756455
- 130004486768
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- NII Book ID
- AN00334149
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- COI
- 1:CAS:528:DC%2BC38Xhtl2lur%2FL
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- ISSN
- 18814743
- 03885321
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- NDL BIB ID
- 023832381
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed