LASER RAMAN-SPECTROSCOPY OF NH3 AND ND3 ADSORBED ON TIO2(ANATASE)

被引：20
|
作者：
WENT, GT [1 ]
BELL, AT [1 ]
机构：
[1] UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720
来源：
CATALYSIS LETTERS | 1991年 / 11卷 / 01期
关键词：
RAMAN SPECTROSCOPY; AMMONIA; TITANIA;
D O I：
10.1007/BF00866908
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 with G-matrix calculations, leads to the conclusion that one type of chemisored 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.
引用
收藏
页码：111 / 118
页数：8
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