CHARACTERIZATION OF V2O5-TIO2 EUROCAT CATALYSTS BY VIBRATIONAL AND ELECTRONIC SPECTROSCOPIES

被引：38

作者：

BUSCA, G

ZECCHINA, A

ANDERSSON, A

REBENSDORF, B

BAERNS, M

TRAUTMAN, S

BILLY, J

COUDURIER, G

VOLTA, JC

BOND, GC

DIAS, CR

LORENZELLI, V

RAMIS, G

COLUCCIA, S

GEOBALDO, F

GIAMELLO, E

MARCHESE, L

DELARCO, M

MARTIN, C

RIVES, V

KRYSCIAK, J

TRIFIRO, F

机构：

[1] UNIV TURIN,DIPARTIMENTO CHIM INORGAN,I-10125 TURIN,ITALY

[2] LUND UNIV,S-22100 LUND,SWEDEN

[3] RUHR UNIV BOCHUM,LEHRSTUHL TECH CHEM,W-4780 BOCHUM,GERMANY

[4] CNRS,INST RECH CATALYSE,F-69626 VILLEURBANNE,FRANCE

[5] BRUNEL UNIV,DEPT CHEM,UXBRIDGE UB8 3PH,MIDDX,ENGLAND

[6] UNIV TURIN,DIPARTIMENTO CHIM INORGAN,I-10125 TURIN,ITALY

[7] UNIV SALAMANCA,FAC FARM,DEPT QUIM INORGAN,E-37007 SALAMANCA,SPAIN

[8] POLISH ACAD SCI,INST CATALYSIS & SURFACE CHEM,PL-30239 KRAKOW,POLAND

[9] UNIV BOLOGNA,I-40136 BOLOGNA,ITALY

来源：

CATALYSIS TODAY | 1994年 / 20卷 / 01期

关键词：

D O I：

10.1016/0920-5861(94)85016-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

IR and Raman spectroscopic studies show that the catalyst EL10V1 consists of a 'monolayer' of surface vanadyl complexes spread on the TiO2 support surface. Such a 'monolayer' contains both Lewis and Bronsted acidic sites, while the nucleophilic sites of the support surface are suppressed. On the catalyst EL10V8, V2O5 particles are also present. UV-Vis spectra show that V5+ is predominant on the calcined catalysts; part of it can be converted easily into V4+. Evidence is also found for electronic interaction between the support and the surface vanadium oxide species.

引用

页码：61 / 76

页数：16

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[1] ACTIVITIES OF V-TI-O CATALYSTS IN THE AMMOXIDATION OF 3-PICOLINE .2. ACID-BASE PROPERTIES AND INFRARED-SPECTRA [J].