Thermal, structural and acidic characterization of some vanadyl phosphate materials modified with trivalent metal cations

被引：17

作者：

Benes, L

Galli, P

Massucci, MA

Melanova, K

Zima, V

机构：

[1] UNIV PARDUBICE,PARDUBICE 53210,CZECH REPUBLIC

[2] UNIV ROMA LA SAPIENZA,DIPARTIMENTO CHIM,I-00185 ROME,ITALY

[3] CNR,IMAI,I-00016 MONTEROTONDO,ROME,ITALY

来源：

JOURNAL OF THERMAL ANALYSIS | 1997年 / 50卷 / 03期

关键词：

1-butene isomerization; M3+-substituted vanadylphosphates; structural characterization; thermal characterization; vanadyl phosphate;

D O I：

10.1007/BF01980496

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A set of new materials with general formula [M(H2O)](x)(VO)(1-x)PO4 . 2H(2)O (M3+ = Al, Cr, Ga, Mn), isomorphous with layered tetragonal VOPO4 . 2H(2)O and having potential catalytic properties, have been characterized by TG and DTA, X-ray diffraction and surface acid strength. During heating the compounds transform in the monohydrated and anhydrous phases, all maintaining a layered structure, with a proper interlayer spacing. Catalytic tests performed with 1-butene show that the M3+-vanadyl phosphates greatly improve the conversion of the olefine with respect to pure vanadyl phosphate.

引用

页码：355 / 364

页数：10

共 26 条

[1] REACTION OF ACETIC-ACID WITH METHANOL OVER VANADIUM TITANIUM BINARY PHOSPHATE CATALYSTS IN THE PRESENCE OF OXYGEN [J].