P. Vandervoort et al., THE EFFECT OF WATER ON THE STRUCTURE OF SUPPORTED VANADIUM-OXIDE STRUCTURES - AN FT-RAMAN, IN-SITU DRIFT AND IN-SITU UV-VIS DIFFUSE-REFLECTANCE STUDY, SPECT ACT A, 53(12), 1997, pp. 2181-2187
Citations number
15
Journal title
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
A promising way to create supported metal oxide catalysts consists of
the irreversible adsorption and subsequent thermolysis of metal acetyl
acetonate complexes. Spectroscopic techniques are often used in the ev
aluation and assessment of the final catalytic surface structure. In t
his paper, the use of FT-RAMAN, in situ UV-VIS diffuse reflectance DRS
and in situ diffuse reflectance infrared spectroscopy is discussed in
the evaluation of silica supported VOx structures. It is argued that
water drastically influences the surface structure of these catalysts.
It's effects are noticeable in the stages of pretreatment of the supp
ort, the actual synthesis and in the post-synthesis storage of the cat
alyst. (C) 1997 Elsevier Science B.V.