Abstract
The surface structure of supported metal clusters can be finely controlled by using a well-defined metal complex and surface modifications, as described in the other chapter. The surface structures are stabilized by the interaction between the metal and support oxide. Investigation of a metal species on a single-crystal oxide surface will provide further knowledge regarding the structure of the metal species on oxide surfaces and the metal–oxide interaction. However, the investigation of a metal species on a single-crystal oxide surface is not easy because of the small amount of metal species and high penetration ability of the X-ray. As described in the other chapter, polarization-dependent total reflection fluorescence XAFS (PTRF-XAFS) will provide three-dimensional structural information of a metal species highly dispersed on flat surfaces. In this chapter, we discuss how to obtain an atomically dispersed metal species by controlling the oxide surface property and structure (mainly a TiO (110) surface) and how to determine the three-dimensional structure on an atomic level using PTRF-XAFS. The structure mainly depends on the strengths of the metal–metal and metal–oxide interactions. What is the metal–oxide interaction?
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Asakura, K. (2017). Three-Dimensional Structures on Oxide Single-Crystal Surfaces. In: Iwasawa, Y., Asakura, K., Tada, M. (eds) XAFS Techniques for Catalysts, Nanomaterials, and Surfaces. Springer, Cham. https://doi.org/10.1007/978-3-319-43866-5_32
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DOI: https://doi.org/10.1007/978-3-319-43866-5_32
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