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X‐ray absorption spectroscopic study on gold particles formed on titania and alumina
Author(s) -
Matsuo Shuji,
Tsukamoto Taiga,
Kamigaki Aki,
Okaue Yoshihiro,
Yokoyama Takushi,
Wakita Hisanobu
Publication year - 2003
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.632
Subject(s) - xanes , absorption (acoustics) , adsorption , materials science , foil method , extended x ray absorption fine structure , ion , x ray absorption fine structure , absorption spectroscopy , analytical chemistry (journal) , spectral line , inorganic chemistry , chemistry , spectroscopy , optics , composite material , organic chemistry , physics , quantum mechanics , astronomy
X‐ray absorption near‐edge structure (XANES) measurements near the Au L 3 edge were made on Au(III) complex ions adsorbed on titania and alumina without a specific reducing agent. Compared with the XANES spectrum of a pure gold foil, the gold adsorbed on titania and alumina was found to be reduced to Au(0). The XANES method could obtain spectra of gold particles less than 1 nm in diameter, although a UV–visible absorption spectrum was difficult to observe with such samples. Copyright © 2003 John Wiley & Sons, Ltd.