Bronsted acid sites of zeolitic strength in amorphous silica-alumina

被引:59
|
作者
Poduval, Dilip G. [1 ]
van Veen, J. A. Rob [1 ]
Rigutto, Marcello S. [2 ]
Hensen, Emiel J. M. [1 ]
机构
[1] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
[2] Shell Global Solut Int BV, NL-1030 BN Amsterdam, Netherlands
关键词
SURFACE-ACIDITY; Y ZEOLITES; CATALYSTS; FTIR; NMR; IR;
D O I
10.1039/c000019a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The most acidic OH groups in silica-aluminas (zeolites, clays, amorphous silica-aluminas) can be made to react selectively with C(6)D(6) to give acidic OD groups; quanti. cation by IR spectroscopy shows that differences in the overall Bronsted acidity of aluminosilicates are dominated by differences in the density of sites of similar acid strength.
引用
收藏
页码:3466 / 3468
页数:3
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