What is the Interaction between Atomically Dispersed Ni and Oxide Surfaces?

Yuichiro Koike; Wang-Jae Chun; Kaoru Ijima; Shushi Suzuki; Kiyotaka Asakura

doi:10.2320/matertrans.MBW200830

Yuichiro Koike, Wang-Jae Chun, Kaoru Ijima, Shushi Suzuki, Kiyotaka Asakura

著者情報

キーワード: (polarization-dependent total-reflection fluorescence extended X-ray absorption fine structure) PTRF-XAFS, metal oxide surface, nickel cluster, metal–oxide interaction, TiO₂ (110), Al₂O₃ (0001)

ジャーナルフリー

2009 年 50 巻 3 号 p. 509-515

DOI https://doi.org/10.2320/matertrans.MBW200830

View "Advance Publication" version (February 12, 2009).

詳細

抄録

Metal–oxide surface interaction is important in catalysis. We have studied Ni on TiO₂ (110) and Al₂O₃ (0001) by means of polarization-dependent total-reflection fluorescence extended X-ray absorption fine structure (PTRF-EXAFS) observations to elucidate the origin of metal–oxide interactions. Ni atoms interact with the dangling bond of the oxygen atoms. The Ni atoms are positively charged and bonded with more than two oxygen atoms.

責任著者(Corresponding author)

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