Bronsted acidic strength in Y-zeolite by positron spectroscopy

被引：11

作者：

Huang, WF ^{[1
]}

Hung, KJ

Huang, DC

Huang, CC

Tseng, PK

机构：

[1] Univ Louisville, Dept Phys, Louisville, KY 40292 USA

[2] United Catalysts Inc, Louisville, KY 40292 USA

[3] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

[4] Tam Kang Univ, Dept Phys, Taipei, Taiwan

来源：

CATALYSIS LETTERS | 1999年 / 59卷 / 2-4期

关键词：

positrons; acidic strength; ammonia; water; alcohol; Y-zeolite;

D O I：

10.1023/A:1019060219073

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：

Angular correlation spectra of positron annihilation in Y-zeolite adsorbed with bases (ammonia, water, and alcohol) were studied. Results by the technique successfully reveal that there exist two types of Bronsted acid sites with different acidic strengths which require temperature of desorption of the base at about 200 and 400(degrees)C.

引用

页码：213 / 216

页数：4

共 20 条

[1] CHARACTERIZATION OF H,NA-Y USING AMINE DESORPTION [J].