Browsing Τμήμα Χημείας / Department of Chemistry by Author "Zaki, M. I."
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Article
The nature of supported-molybdena catalysts. Evidence from a Raman and X-ray diffraction investigation of pyridine adsorption
Ismail, H. M.; Theocharis, Charis R.; Waters, D. N.; Zaki, M. I.; Fahim, R. B. (1987)Raman spectroscopy and X-ray diffraction have been used to characterise molybdena catalysts supported on γ-alumina and silica. Raman spectroscopy of pyridine molecules adsorbed on these samples was used to characterise the ...
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Article
Study of the influence of the impregnation acidity on the structure and properties of molybdena-silica catalysts
Ismail, H. M.; Theocharis, Charis R.; Zaki, M. I. (1987)Three samples of 8 mol% MoO3 supported on SiO2 have been prepared using impregnating solutions with different acidity levels (pH 1, 6 and 11, respectively). The three products had different structures and behaved in a ...