Preparation and characterization of zirconia-phosphate aerogels

被引：29

作者：

Boyse, RA ^{[1
]}

Ko, EI ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV,DEPT CHEM ENGN,PITTSBURGH,PA 15213

来源：

CATALYSIS LETTERS | 1996年 / 38卷 / 3-4期

关键词：

zirconia; phosphate; solid acid; aerogel; butene;

D O I：

10.1007/BF00806573

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：

Zirconia-phosphate aerogels were prepared by two methods: a one-step sol-gel synthesis followed by supercritical drying and an incipient wetness impregnation synthesis of a calcined zirconia aerogel. These samples were characterized by nitrogen adsorption, X-ray diffraction, infrared spectroscopy, and 1-butene isomerization. We identified both the conditions when zirconia-phosphate aerogels possess Bronsted acid sites, and the phosphate species responsible for their generation.

引用

页码：225 / 230

页数：6

共 15 条

[1] IR STUDIES OF WATER SORPTION ON ZRO2 POLYMORPHS .1. [J].

AGRON, PA ;

FULLER, EL ;

HOLMES, HF .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1975, 52 (03) :553-561

[2] NATURE OF ACIDIC SITES ON SILICA-ALUMINA . A REVALUATION OF RELATIVE ABSORPTION COEFFICIENTS OF CHEMISORBED PYRIDINE [J].

BASILA, MR ;

KANTNER, TR .

JOURNAL OF PHYSICAL CHEMISTRY, 1966, 70 (05) :1681-&

[3] SOME SELECTIVITY CRITERIA IN MILD OXIDATION CATALYSIS V-P-O PHASES IN BUTENE OXIDATION TO MALEIC-ANHYDRIDE [J].

BORDES, E ;

COURTINE, P .

JOURNAL OF CATALYSIS, 1979, 57 (02) :236-252

[4] A FOURIER-TRANSFORM INFRARED AND CATALYTIC STUDY OF THE EVOLUTION OF THE SURFACE-ACIDITY OF ZIRCONIUM-PHOSPHATE FOLLOWING HEAT-TREATMENT [J].

BUSCA, G ;

LORENZELLI, V ;

GALLI, P ;

LAGINESTRA, A ;

PATRONO, P .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :853-864

[5] STUDIES OF ACID-BASE-CATALYZED REACTIONS .14. ISOMERIZATION OF BUTENE OVER LA2O3 AND ZNO [J].

GOLDWASSER, J ;

HALL, WK .

JOURNAL OF CATALYSIS, 1981, 71 (01) :53-63

[6]

HINO M, 1987, J CHEM SOC CHEM COMM, P1259

[7]

KO EI, 1993, CHEMTECH APR, P31

[8] CATALYTIC ACTIVITY OF ZIRCONIUM-PHOSPHATE AND SOME DERIVED PHASES IN THE DEHYDRATION OF ALCOHOLS AND ISOMERIZATION OF BUTENES [J].

LAGINESTRA, A ;

PATRONO, P ;

BERARDELLI, ML ;

GALLI, P ;

FERRAGINA, C ;

MASSUCCI, MA .

JOURNAL OF CATALYSIS, 1987, 103 (02) :346-356

[9]

MELOAN CE, 1963, ELEMENTARY INFRARED, P165

[10] ON THE ACID-CATALYZED ISOMERIZATION OF LIGHT PARAFFINS OVER A ZRO2/SO4 SYSTEM - THE EFFECT OF HYDRATION [J].

MORTERRA, C ;

CERRATO, G ;

PINNA, F ;

SIGNORETTO, M ;

STRUKUL, G .

JOURNAL OF CATALYSIS, 1994, 149 (01) :181-188

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