SYNTHESIS AND CHARACTERIZATION OF THE VANADIUM-INCORPORATED MOLECULAR-SIEVE VAPO-5

被引：84

作者：

JHUNG, SH

UH, YS

CHON, H

机构：

[1] KOREA INST SCI & TECHNOL, DEPT CHEM, POB 150, SEOUL 130650, SOUTH KOREA

[2] KOREA INST SCI & TECHNOL, DIV CHEM, SEOUL 130650, SOUTH KOREA

来源：

APPLIED CATALYSIS | 1990年 / 62卷 / 01期

关键词：

catalyst characterization (XRD; catalyst preparation (crystallization); DRS); EPR; molecular sieves; TGA; vanadium-aluminophosphate; XPS;

D O I：

10.1016/S0166-9834(00)82237-X

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：

The vanadium-incorporated molecular sieve VAPO-5 was synthesized hydrothermally and characterized by X-ray diffraction, electron paramagnetic resonance, thermogravimetric analysis, diffuse reflectance spectroscopy, chemical analysis and adsorption techniques. It seems that the vanadium is incorporated mainly as V4+ in the as-synthesized VAPO-5 framework. The vanadium in VAPO-5 exists in a well dispersed state and shows redox properties, changing its oxidation state readily between V4+ and V5+. © 1990.

引用

页码：61 / 72

页数：12

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[11] INVESTIGATIONS OF CATALYTICALLY ACTIVE SURFACE-COMPOUNDS .17. INFLUENCE OF SIZE AND STRUCTURE OF VANADIUM-OXIDE CLUSTERS ON SELECTIVITY IN THE OXIDATION OF NORMAL-BUTENE [J].