Characterization of modified V2O5-ZrO2 catalysts for the oxidative dehydrogenation of propane

被引：29

作者：

Albrecht, S

Wendt, G

Lippold, G

Adamski, A

Dyrek, K

机构：

[1] Univ Leipzig, Fak Chem & Mineral, Inst Chem Tech, D-04103 Leipzig, Germany

[2] Fak Phys & Geowissensch, Inst Expt Phys 1, D-04103 Leipzig, Germany

[3] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland

[4] Fak Phys & Geowissensch, Inst Expt Phys 2, D-04103 Leipzig, Germany

来源：

SOLID STATE IONICS | 1997年 / 101卷

关键词：

vanadium oxide surface species; zirconia support; alkalimetal additives; oxidative dehydrogenation of propane;

D O I：

10.1016/S0167-2738(97)00387-1

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：

V2O5-ZrO2 catalysts of different composition were investigated by means of X-ray diffraction, Laser-RAMAN spectroscopy, temperature programmed reduction and catalytic measurements. At low vanadia contents monomeric vanadyl species and polyvanadate species were found. Alkalimetal additives lead to an increase of the V=O bond length in the sequence of nonpromoted < Li < Na < K. The catalytic activity in the oxidative dehydrogenation of propane is connected to the kind of VOx surface species and correlates with the reducibility.

引用

页码：909 / 914

页数：6

共 20 条

[1] ADAMSKI A, 1996, 13 INT S REACT SOL S
[2] ALBRECHT S, 1994, THESIS U LEIPZIG
[3] BIELANSKI A, 1991, OXYGEN CATALYSIS, P43
[4] VANADIUM-OXIDE MONOLAYER CATALYSTS - PREPARATION, CHARACTERIZATION AND CATALYTIC ACTIVITY
BOND, GC
TAHIR, SF
[J]. APPLIED CATALYSIS, 1991, 71 (01): : 1 - 31
[5] Bosch H., 1986, CATAL TODAY, V2, P369, DOI DOI 10.1016/0920-5861(88)80002-6
[6] BOSCH M, 1994, J CHEM SOC F1, V80, P2479
[7] Effect of potassium addition to the TiO2 support on the structure of V2O5/TiO2 and its catalytic properties in the oxidative dehydrogenation of propane
Courcot, D
Grzybowska, B
Barbaux, Y
Rigole, M
Ponchel, A
Guelton, M
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (09): : 1609 - 1617
[8] ON THE SURFACE-STRUCTURE OF VANADIA TITANIA CATALYSTS - COMBINED LASER RAMAN AND FOURIER-TRANSFORM INFRARED INVESTIGATION
CRISTIANI, C
FORZATTI, P
BUSCA, G
[J]. JOURNAL OF CATALYSIS, 1989, 116 (02) : 586 - 589
[9] EFFECT OF ADDITIVES ON THE STRUCTURE AND REACTIVITY OF THE SURFACE VANADIUM-OXIDE PHASE IN V2O5 TIO2 CATALYSTS
DEO, G
WACHS, IE
[J]. JOURNAL OF CATALYSIS, 1994, 146 (02) : 335 - 345
[10] REACTIVITY OF SUPPORTED VANADIUM-OXIDE CATALYSTS - THE PARTIAL OXIDATION OF METHANOL
DEO, G
WACHS, IE
[J]. JOURNAL OF CATALYSIS, 1994, 146 (02) : 323 - 334

← 1 2 →