Adsorption of CH3OH on V2O5 -: Comparative reactivity of the (100) and (010) planes

被引：2

作者：

Sambeth, J ^{[1
]}

Gambaro, L ^{[1
]}

Thomas, H ^{[1
]}

机构：

[1] Natl Univ La Plata, CINDECA, CONICET, RA-1900 La Plata, Argentina

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1999年 / 139卷 / 01期

关键词：

V2O5; CH3OH; adsorption; Extended Huckel Method;

D O I：

10.1016/S1381-1169(98)00185-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：

Methanol adsorption on the (100) and (010) planes of V2O5 was analysed by Extended Huckel Method (ASED). For the plane (100) two cases were considered with vanadium atoms either saturated or unsaturated with oxygen atoms. The results showed that CH3OH adsorption on the (010) plane is more favourable than on the (100) plane for both cases. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：25 / 29

页数：5

相关论文

共 21 条

[1] CATALYTIC ACTIVITY FOR OXIDATION OF METHANOL AND ACID-BASE PROPERTIES OF METAL-OXIDES [J].

AI, M .

JOURNAL OF CATALYSIS, 1978, 54 (03) :426-435

[2] DERIVATION OF EXTENDED HUCKEL METHOD WITH CORRECTIONS - ONE ELECTRON MOLECULAR-ORBITAL THEORY FOR ENERGY-LEVEL AND STRUCTURE DETERMINATIONS [J].

ANDERSON, AB .

JOURNAL OF CHEMICAL PHYSICS, 1975, 62 (03) :1187-1188

[3]

ANDERSSON A, 1985, ADSORPTION CATALYSIS, P381

[4]

Bachmann H.G., 1961, Z. Kristallorgr, V115, P110

[5] INFLUENCE OF GRAIN MORPHOLOGY OF V2O5 ON ITS REDUCIBILITY AND SELECTIVITY FOR METHANOL OXIDATION [J].

BAIKER, A ;

MONTI, D .

JOURNAL OF CATALYSIS, 1985, 91 (02) :361-365

[6] Promotion effects of titanium on partial oxidation of methanol over vanadium pentoxide catalysts [J].

Briand, L ;

Gambaro, L ;

Thomas, H .

JOURNAL OF CATALYSIS, 1996, 161 (02) :839-860

[7] FT-IR STUDY OF THE SURFACE-PROPERTIES OF POLYCRYSTALLINE VANADIA [J].

BUSCA, G ;

RAMIS, G ;

LORENZELLI, V .

JOURNAL OF MOLECULAR CATALYSIS, 1989, 50 (02) :231-240

[8] ON THE MECHANISM OF METHANOL OXIDATION OVER VANADIA-BASED CATALYSTS - A FT-IR STUDY OF THE ADSORPTION OF METHANOL, FORMALDEHYDE AND FORMIC-ACID ON VANADIA AND VANADIA-SILICA [J].

BUSCA, G .

JOURNAL OF MOLECULAR CATALYSIS, 1989, 50 (02) :241-249

[9] MOLECULAR GEOMETRIES BY THE EXTENDED HUCKEL MOLECULAR-ORBITAL METHOD [J].

CALZAFERRI, G ;

FORSS, L ;

KAMBER, I .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (14) :5366-5371

[10] STOICHIOMETRY AND STRUCTURAL EFFECTS IN ALCOHOL CHEMISORPTION-TEMPERATURE-PROGRAMMED DESORPTION ON MOO3 [J].

FARNETH, WE ;

STALEY, RH ;

SLEIGHT, AW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1986, 108 (09) :2327-2332