ISSN:
1572-879X
Keywords:
Raman spectroscopy
;
ammonia
;
titania
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The adsorption of NH3 and ND3 on the anatase phase of TiO2 has been studied using laser Raman spectroscopy. Peaks are observed due to OH (OD), NH3 (ND3) and NH x . (ND x ) species adsorbed on the oxide surface. Analysis of the isotopic shifts observed between adsorbed NH3 and ND3 together withG-matrix calculations, leads to the conclusion that one type of chemisorbed NH3 is present on the surface, in contrast to previous studies suggesting the presence of two distinct types of chemisorbed NH3. Evidence is also presented for adsorbed NH x (x=1 or 2) species formed by the dissociative adsorption of NH3.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00866908
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