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Estudo por espectroscopia no infravermelho da interação metal-suporte em Pt/TiO2. A influência da adsorção de hidrogênio
Author(s) -
Edilson Valmir Benvenutti,
Celso U. Davanzo
Publication year - 1999
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.1590/s0100-40421999000500009
Subject(s) - hydrogen spillover , hydrogen , non blocking i/o , metal , infrared spectroscopy , chemistry , analytical chemistry (journal) , materials science , catalysis , metallurgy , chromatography , biochemistry , organic chemistry
The influence of the presence of hydrogen on Pt/TiO2 catalysts submitted to reduction treatment has been studied by FT-IR at room temperature. After submitting to LTR treatment, the hydrogen spillover has been detected and the presence of hydrogen at the bulk is shown to produce a strong absorption in the infrared spectral region. After HTR treatment, the hydrogen is strongly chemissorbed

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