A SURFACE DISPERSION STUDY OF SILICA-SUPPORTED MOLYBDENA

被引：3

作者：

DELARCO, M

CARRAZAN, SRG

RIVES, V

机构：

[1] UNIV SALAMANCA,FAC PHARM,DEPT INORGAN CHEM,E-37007 SALAMANCA,SPAIN

[2] UNIV SEVILLA,FAC CHEM,DEPT INORGAN CHEM,E-41012 SEVILLE,SPAIN

来源：

JOURNAL OF MATERIALS SCIENCE | 1994年 / 29卷 / 09期

关键词：

D O I：

10.1007/BF00363419

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface species formed on MoO3/SiO2 catalysts prepared by manually grinding mixtures of both oxides in the presence of water vapour and with molybdenum loadings between 2% and 12% were studied by X-ray diffraction, temperature-programmed reduction and scanning electron microscopy. Polymolybdate species have been identified for molybdenum loadings below 4%, these species condensing to form MoO3-like phases and orthorhombic MoO3, as the weight loading increases.

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页码：2309 / 2314

页数：6

相关论文

共 21 条

[1]

ABART J, 1981, APPL CATAL, V2, P155

[2] DYNAMIC STUDIES OF THE PHOTOINDUCED METATHESIS OF C3H6 AND PHOTOREDUCTION OF MO WITH CO ON ANCHORED AND IMPREGNATED MO/SIO2 CATALYSTS [J].

ANPO, M ;

KONDO, M ;

KUBOKAWA, Y ;

LOUIS, C ;

CHE, M .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1988, 84 :2771-2782

[3] STRUCTURE AND CATALYTIC ACTIVITY OF MOO3.SIO2 SYSTEMS .1. SOLID-STATE PROPERTIES [J].

CASTELLAN, A ;

BART, JCJ ;

VAGHI, A ;

GIORDANO, N .

JOURNAL OF CATALYSIS, 1976, 42 (01) :162-172

[4] INFLUENCE OF MO-SIO2 CATALYST PREPARATION ON MOLYBDENUM COORDINATION AND CATALYTIC PROPERTIES [J].

CHE, M ;

LOUIS, C ;

TATIBOUET, JM .

POLYHEDRON, 1986, 5 (1-2) :123-128

[5] SURFACE SPECIES FORMED UPON SUPPORTING MOLYBDENA ON ALUMINA BY MECHANICALLY MIXING BOTH OXIDES [J].

DELARCO, M ;

CARRAZAN, SRG ;

RIVES, V ;

GILLLAMBIAS, FJ ;

MALET, P .

JOURNAL OF CATALYSIS, 1993, 141 (01) :48-57

[6] SURFACE DISPERSION OF MOLYBDENA SUPPORTED ON SILICA, ALUMINA AND TITANIA [J].

DELARCO, M ;

CARRAZAN, SRG ;

MARTIN, C ;

MARTIN, I ;

RIVES, V ;

MALET, P .

JOURNAL OF MATERIALS CHEMISTRY, 1993, 3 (12) :1313-1318

[7] PHYSICOCHEMICAL CHARACTERIZATION OF THE INTERACTION BETWEEN COBALT MOLYBDENUM OXIDE AND SILICON DIOXIDE .1. INFLUENCE OF THE COBALT-MOLYBDENUM RATIO [J].

GAJARDO, P ;

GRANGE, P ;

DELMON, B .

JOURNAL OF PHYSICAL CHEMISTRY, 1979, 83 (13) :1771-1779

[8] PHYSICOCHEMICAL CHARACTERIZATION OF THE INTERACTION BETWEEN COBALT MOLYBDENUM OXIDE AND SILICON DIOXIDE .2. INFLUENCE OF THE AMOUNT OF OXIDE PHASE [J].

GAJARDO, P ;

PIROTTE, D ;

GRANGE, P ;

DELMON, B .

JOURNAL OF PHYSICAL CHEMISTRY, 1979, 83 (13) :1780-1786

[9]

GLEMSER O, 1963, ADV INORG CHEM, V5, P215

[10] STUDY OF THE INFLUENCE OF THE IMPREGNATION ACIDITY ON THE STRUCTURE AND PROPERTIES OF MOLYBDENA SILICA CATALYSTS [J].

ISMAIL, HM ;

THEOCHARIS, CR ;

ZAKI, MI .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :2835-2840