ISSN:
1572-879X
Keywords:
Spreading
;
dehydration
;
molybdenum oxide
;
silica
;
infrared spectroscopy
;
Raman spectroscopy
;
preparation of oxides
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Laser Raman spectroscopy (LRS) was used to characterize the hydrated and dehydrated states of surface-supported Mo6+ on Davison 952 silica gel. Silica-supported Mo samples were prepared from MO2(η3-C3H5)4 and (η5-C5H5)2Mo2(CO)4. Metal loadings of 5.1–7.8 wt% Mo were studied. Crystallites of MoO3 were not observed at these high loadings. An upper limit for dispersing dehydrated, isolated Mo6+ was found at about 1 Mo atom/nm2, which corresponds to the isolated silanol density of silica.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00764357
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