ESCA STUDIES OF ALUMINOPHOSPHATE MOLECULAR-SIEVES

被引：68
|
作者：
HE, HY
ALBERTI, K
BARR, TL
KLINOWSKI, J
机构：
[1] UNIV CAMBRIDGE,DEPT CHEM,CAMBRIDGE CB2 1EW,ENGLAND
[2] UNIV WISCONSIN,DEPT MAT,MILWAUKEE,WI 53201
[3] UNIV WISCONSIN,SURFACE STUDIES LAB,MILWAUKEE,WI 53201
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 51期
关键词：
D O I：
10.1021/j100153a045
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：
We describe the first detailed X-ray photoelectron spectroscopic (ESCA) examination of the surface and near-surface chemistry of VPI-5, AlPO4-8, and AlPO4-11 as well as pseudo-boehmite and several AlPO4's of ''compromized integrity''. A distinct set of core level binding energies was determined and compared to related spectra for cloverite (a gallium phosphate-based sieve) and several zeolites. ESCA line shifts are interpreted in terms of the relative degree of ionicity (covalency) of the Al-0 and P-O bonds in the framework.
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页码：13703 / 13707
页数：5
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