PMID- 16471628
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20060814
LR  - 20070323
IS  - 1520-6106 (Print)
IS  - 1520-5207 (Linking)
VI  - 110
IP  - 2
DP  - 2006 Jan 19
TI  - Preparation and characterization of vanadium oxide deposited on thermally stable 
      mesoporous titania.
PG  - 948-55
AB  - Vanadium oxide was deposited on mesoporous titania by the molecular designed 
      dispersion method to investigate the potential properties of these catalysts. 
      Mesoporous titania was synthesized following the evaporation-induced 
      self-assembly (EISA) method with a subsequent treatment with ammonia to increase 
      the thermal stability. As a result, the mesoporous titania obtained shows a high 
      surface area (approximately 350 m2/g) and high stability. Vanadium oxide was 
      deposited by the MDD method using a vanadyl acetylacetonate complex that was 
      transformed into VOx after a controlled calcination in air flow at 300 degrees C. 
      The mesostructure and porosity characteristics of titania remain even until the 
      maximum V-loading was reached (0.4 mmol/g), as it was shown by N2 sorption 
      measurements at -196 degrees C. The catalysts were characterized by chemical 
      analysis, Fourier transform infrared-photoacoustic spectroscopy (FTIR-PAS), 
      UV-vis diffuse reflectance (DR), and Fourier transform Raman spectroscopy. Raman 
      spectra showed isolated V species for the different V-containing catalysts. 
      Furthermore, UV-vis-DR revealed a higher contribution of polymeric species as the 
      V loading increases. The VOx/mesoporous titania catalysts were highly active in 
      the selective catalytic reduction of NOx. A high activity in the NO conversion 
      was observed, which increases with increasing metal loading.
FAU - Segura, Y
AU  - Segura Y
AD  - Department of Chemistry, Laboratory of Adsorption an Catalysis, University of 
      Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium. yolanda.segura@ua.ac.be
FAU - Chmielarz, L
AU  - Chmielarz L
FAU - Kustrowski, P
AU  - Kustrowski P
FAU - Cool, P
AU  - Cool P
FAU - Dziembaj, R
AU  - Dziembaj R
FAU - Vansant, E F
AU  - Vansant EF
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Phys Chem B
JT  - The journal of physical chemistry. B
JID - 101157530
EDAT- 2006/02/14 09:00
MHDA- 2006/02/14 09:01
CRDT- 2006/02/14 09:00
PHST- 2006/02/14 09:00 [pubmed]
PHST- 2006/02/14 09:01 [medline]
PHST- 2006/02/14 09:00 [entrez]
AID - 10.1021/jp053576p [doi]
PST - ppublish
SO  - J Phys Chem B. 2006 Jan 19;110(2):948-55. doi: 10.1021/jp053576p.