A NEUTRON-DIFFRACTION STUDY OF ACID SITES IN H-SAPO-37

被引:15
作者
BULL, LM
CHEETHAM, AK
HOPKINS, PD
POWELL, BM
机构
[1] AMOCO OIL CO,AMOCO RES CTR,NAPERVILLE,IL 60566
[2] AECL RES,CHALK RIVER LAB,CHALK RIVER,ON,CANADA
关键词
D O I
10.1039/c39930001196
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A powder neutron diffraction study of H-SAPO-37 (Fd3; a = 24.804(2) angstrom; R(p) = 2.98%, R(wp) = 3.73%, chi2 = 1.966) reveals Al/P alternation in the framework, with Si substituting for P; protonation, in order of decreasing occupancy, is observed at O(1), O(2) and O(3).
引用
收藏
页码:1196 / 1198
页数:3
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