EFFECT OF STRUCTURE IN SELECTIVE OXIDE CATALYSIS - OXIDATION REACTIONS OF ETHANOL AND ETHANE ON VANADIUM-OXIDE

被引：117

作者：

OYAMA, ST ^{[1
]}

SOMORJAI, GA ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 12期

关键词：

D O I：

10.1021/j100375a048

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 catalytic activity of well-characterized samples of vanadium oxide supported on silica were studied for the partial oxidation of ethanol and ethane. Surface vanadium atoms were counted by a new oxygen chemisorption technique which allowed measurements of sample dispersions and turnover rates. Ethanol oxidation was found to be a structure-insensitive reaction that produced mostly acetaldehyde. Ethane oxidation was different; while its overall turnover rate changed little with vanadium oxide dispersion, its selectivity did vary with catalyst structure. The products of this reaction were mostly ethylene and acetaldehyde, but at low temperatures on the highest dispersion catalysts there was excess carbon dioxide formation. © 1990 American Chemical Society.

引用

页码：5022 / 5028

页数：7

共 27 条

[1] ANDERSON JB, 1963, CHEM ENG SCI, V18, P147
[2] INFLUENCE OF GRAIN MORPHOLOGY OF V2O5 ON ITS REDUCIBILITY AND SELECTIVITY FOR METHANOL OXIDATION
BAIKER, A
MONTI, D
[J]. JOURNAL OF CATALYSIS, 1985, 91 (02) : 361 - 365
[3] FORMATION OF WELL-DEFINED MGO LAYERS
BARTEAU, MA
PENG, XD
[J]. MATERIALS CHEMISTRY AND PHYSICS, 1988, 18 (5-6) : 425 - 443
[4] BARTEAU MA, 1988, SUCCESSFUL DESIGN CA, P89
[5] CATALYTIC DECOMPOSITION OF 2-PROPANOL ON SINGLE-CRYSTAL SURFACES OF ZNO
BERLOWITZ, P
KUNG, HH
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1986, 108 (12) : 3532 - 3534
[6] Boudart M., 1969, ADV CATAL, V20, P153, DOI DOI 10.1016/S0360-0564(08)60271-0
[7] BOUDART M, 1977, 6TH P INT C CAT LOND, P1
[8] THE CATALYTIC EFFECTIVENESS FACTOR UNDER NONISOTHERMAL CONDITIONS
CARBERRY, JJ
[J]. AICHE JOURNAL, 1961, 7 (02) : 350 - 351
[9] ULTRAVIOLET PHOTOEMISSION-STUDIES OF MOLECULAR ADSORPTION ON OXIDE SURFACES
HENRICH, VE
[J]. PROGRESS IN SURFACE SCIENCE, 1979, 9 (5-6) : 143 - 164
[10] KIM KS, IN PRESS SURF SCI

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