CATALYTIC BEHAVIOR OF UNSUPPORTED AND HETEROPOLYSALT-SUPPORTED H3+NPVNMO12-NO40 HETEROPOLYACIDS IN THE TEST REACTION OF CH3OH OXIDATION

被引：64

作者：

BRUCKMAN, K ^{[1
]}

TATIBOUET, JM ^{[1
]}

CHE, M ^{[1
]}

SERWICKA, E ^{[1
]}

HABER, J ^{[1
]}

机构：

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

来源：

JOURNAL OF CATALYSIS | 1993年 / 139卷 / 02期

关键词：

D O I：

10.1006/jcat.1993.1040

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 oxidation has been used here to study the acid and redox properties of heteropolyacids of the H3+nPVnMo12-nO40, (n = 0, 1, 2, 3) series, both unsupported and supported on the potassium salt K3PMo12O40. Increased vanadium content was found to improve selectivity to formaldehyde by favoring oxidative dehydrogenation at the expense of dehydration. This result is consistent with a reaction mechanism based on HOMO-LUMO interaction. Supported acids generally shown higher activity than the corresponding unsupported catalysts. For unsupported acids, activity was found to be governed mainly by absorption rates and stability of the secondary structure, whereas for supported acids whose structure was stabilized by the support, the influence of vanadium content was found to be a function of the overall proton concentration. © 1993 Academic Press, Inc.

引用

页码：455 / 467

页数：13

共 28 条

[1] VAPOR-PHASE CATALYTIC OXIDATIVE DEHYDROGENATION OF ISOBUTYRIC ACID .3. IR AND X-RAY-DIFFRACTION STUDIES ON AMMONIUM-SALTS OBTAINED FROM ELECTROLYTICALLY REDUCED 12-HETEROPOLYMOLYBDATE ANIONS
AKIMOTO, M
ECHIGOYA, E
[J]. CHEMISTRY LETTERS, 1981, (12) : 1759 - 1762
[2] THE CONVERSION OF METHANOL INTO HYDROCARBONS OVER DODECATUNGSTOPHOSPHORIC ACID
BABA, T
SAKAI, J
WATANABE, H
ONO, Y
[J]. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1982, 55 (08) : 2555 - 2559
[3] ACROLEIN OXIDATION OVER 12-MOLYBDOPHOSPHATES .1. CHARACTERIZATION OF THE CATALYST
BLACK, JB
CLAYDEN, NJ
GAI, PL
SCOTT, JD
SERWICKA, EM
GOODENOUGH, JB
[J]. JOURNAL OF CATALYSIS, 1987, 106 (01) : 1 - 15
[4] ACROLEIN OXIDATION OVER 12-MOLYBDOPHOSPHATES .2. CATALYTIC TESTING
BLACK, JB
SCOTT, JD
SERWICKA, EM
GOODENOUGH, JB
[J]. JOURNAL OF CATALYSIS, 1987, 106 (01) : 16 - 22
[5] LASER RAMAN AND DTA/TGA STUDY OF H3+NPVNMO12-NO40 HETEROPOLYACIDS PURE AND SUPPORTED ON K3PMO12O40
BRUCKMAN, K
HABER, J
SERWICKA, EM
YURCHENKO, EN
LAZARENKO, TP
[J]. CATALYSIS LETTERS, 1990, 4 (02) : 181 - 190
[6] BRUCKMAN K, 1991, APPL CATAL, V73, P153
[7] BRUCKMAN K, 1989, FARADAY DISCUSS CHEM, V87
[8] HETEROPOLYSALT-SUPPORTED HETEROPOLYACIDS AS A NEW CLASS OF ACID-BASE AND REDOX CATALYSTS
Brueckman, K.
Haber, J.
Lalik, E.
Serwicka, E. M.
[J]. CATALYSIS LETTERS, 1988, 1 (1-3) : 35 - 40
[9] COMPARISON OF STRUCTURE AND THERMAL CHEMISTRY OF STOICHIOMETRIC AND CATALYTIC ALKOXY-SUBSTITUTED MOLYBDENUM HETEROPOLYANIONS - C-13 CP-MAS NMR-SPECTRUM OF A CHEMISORBED REACTION INTERMEDIATE
FARNETH, WE
STALEY, RH
DOMAILLE, PJ
FARLEE, RD
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (13) : 4018 - 4023
[10] MECHANISM OF PARTIAL OXIDATION OF METHANOL OVER MOO3 AS STUDIED BY TEMPERATURE-PROGRAMMED DESORPTION
FARNETH, WE
OHUCHI, F
STALEY, RH
CHOWDHRY, U
SLEIGHT, AW
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (12) : 2493 - 2497

← 1 2 3 →