ON THE PHYSICOCHEMICAL AND CATALYTIC PROPERTIES OF H5PV2MO10O40 SUPPORTED ON SILICA

被引：62

作者：

BRUCKMAN, K ^{[1
]}

CHE, M ^{[1
]}

HABER, J ^{[1
]}

TATIBOUET, JM ^{[1
]}

机构：

[1] LAB REACT SURFACE & STRUCT,CNRS,URA 1106,F-75252 PARIS 05,FRANCE

来源：

CATALYSIS LETTERS | 1994年 / 25卷 / 3-4期

关键词：

HETEROPOLYACID SUPPORTED ON SILICA; METHANOL OXIDATION; KEGGIN ANION TRANSFORMATIONS AT SILICA SURFACE;

D O I：

10.1007/BF00816303

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：

Properties of H5PV2Mo10O40 (HPVMo) heteropolyacid supported on high area silica (375 m2 g-1) were investigated. At low loadings interaction with surface OH groups leads to hydrolysis of Keggin anions into ''triads'' of edge-sharing octahedra strongly bound to the surface. Characteristic acidity is lost and methanol is oxidized to formaldehyde. At high loading unperturbed Keggin anions are present at the surface. Properties resemble those of unsupported acid. Thermally decomposed Keggin anions become reconstructed under exposure to water vapor. Dimethylether is mainly formed from methanol.

引用

页码：225 / 240

页数：16

共 44 条

[1] ON THE THERMAL-BEHAVIOR OF HETEROPOLY ACIDS OF THE TYPE H3+N[PVNMO12-NO40].XH2O(N = 0, 1, 2, 3) .2. RAMAN AND INFRARED SPECTROSCOPIC INVESTIGATIONS [J].

AI, CD ;

REICH, P ;

SCHREIER, E ;

JERSCHKEWITZ, HG ;

OHLMANN, G .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1985, 526 (07) :86-92

[2] SILICA SUPPORTED MOLYBDENA CATALYSTS - CHARACTERIZATION AND METHANE OXIDATION [J].

BARBAUX, Y ;

ELAMRANI, AR ;

PAYEN, E ;

GENGEMBRE, L ;

BONNELLE, JP ;

GRZYBOWSKA, B .

APPLIED CATALYSIS, 1988, 44 (1-2) :117-132

[3] INFRARED STUDY OF THE THERMAL-DECOMPOSITION OF HETEROPOLYACIDS OF THE SERIES H3+XPMO12-XVXO40 [J].

BIELANSKI, A ;

MALECKA, A ;

KUBELKOVA, L .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1989, 85 :2847-2856

[4] CATALYTIC BEHAVIOR OF UNSUPPORTED AND HETEROPOLYSALT-SUPPORTED H3+NPVNMO12-NO40 HETEROPOLYACIDS IN THE TEST REACTION OF CH3OH OXIDATION [J].

BRUCKMAN, K ;

TATIBOUET, JM ;

CHE, M ;

SERWICKA, E ;

HABER, J .

JOURNAL OF CATALYSIS, 1993, 139 (02) :455-467

[5] LASER RAMAN AND DTA/TGA STUDY OF H3+NPVNMO12-NO40 HETEROPOLYACIDS PURE AND SUPPORTED ON K3PMO12O40 [J].

BRUCKMAN, K ;

HABER, J ;

SERWICKA, EM ;

YURCHENKO, EN ;

LAZARENKO, TP .

CATALYSIS LETTERS, 1990, 4 (02) :181-190

[6]

BRUCKMAN K, 1989, FARADAY DISCUSS, V87, P228

[7] HETEROPOLYSALT-SUPPORTED HETEROPOLYACIDS AS A NEW CLASS OF ACID-BASE AND REDOX CATALYSTS [J].

Brueckman, K. ;

Haber, J. ;

Lalik, E. ;

Serwicka, E. M. .

CATALYSIS LETTERS, 1988, 1 (1-3) :35-40

[8] SELECTIVE OXIDATION OF NORMAL-PENTANE ON 12-MOLYBDOVANADOPHOSPHORIC ACIDS [J].

CENTI, G ;

NIETO, JL ;

IAPALUCCI, C ;

BRUCKMAN, K ;

SERWICKA, EM .

APPLIED CATALYSIS, 1989, 46 (02) :197-212

[9]

CENTI G, 1901, 1ST P TOK C TOK, P225

[10] PREDICTING MOLECULAR-STRUCTURES OF SURFACE METAL-OXIDE SPECIES ON OXIDE SUPPORTS UNDER AMBIENT CONDITIONS [J].

DEO, G ;

WACHS, IE .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (15) :5889-5895

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