QUANTITATIVE H-1 MAS NMR-STUDIES OF STRUCTURALLY DIFFERENT OH SURFACE GROUPS ON ETA-AL2O3 AND MOL-/ETA-AL2O3 CATALYSTS

被引：29

作者：

JACOBSEN, CJH ^{[1
]}

TOPSOE, NY ^{[1
]}

TOPSOE, H ^{[1
]}

KELLBERG, L ^{[1
]}

JAKOBSEN, HJ ^{[1
]}

机构：

[1] AARHUS UNIV,DEPT CHEM,DK-8000 AARHUS C9,DENMARK

来源：

JOURNAL OF CATALYSIS | 1995年 / 154卷 / 01期

关键词：

D O I：

10.1006/jcat.1995.1147

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：

Quantitative results for the coverage of surface hydroxyl groups on eta-Al2O3 and calcined molybdenum catalysts supported on Al2O3 have been obtained by H-1 MAS NMR spectroscopy. By studying catalysts with different molybdenum concentrations, information on the nature of the reaction of molybdate ions with the structurally different hydroxyl species of the support could be obtained. The present studies show that a preferential interaction of molybdenum with the most basic hydroxyl groups of eta-Al2O3 takes place and that monolayer structures dominate up to approximately 12 wt% Mo corresponding to 4.0 Mo atoms per nm(2). (C) 1995 Academic Press, Inc.

引用

页码：65 / 68

页数：4

共 10 条

[1]

Boehm HP, 1983, CATALYSIS SCI TECHNO, P39, DOI DOI 10.1007/978-3-642-93229-8_2

[2] SOLID-STATE H-1 MAS NMR CHARACTERIZATION OF GAMMA-ALUMINA AND MODIFIED GAMMA-ALUMINAS [J].