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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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A new class of highly dispersed VOx catalysts on mesoporous silica: Synthesis, characterization, and catalytic activity in the partial oxidation of ethanol

Cited 28 times inthomson ciCited 30 times inthomson ci
Title
A new class of highly dispersed VOx catalysts on mesoporous silica: Synthesis, characterization, and catalytic activity in the partial oxidation of ethanol
Other Titles
A new class of highly dispersed VOx catalysts on mesoporous silica: Synthesis, characterization, and catalytic activity in the partial oxidation of ethanol
Author
Kwak, JahunJose E. HerreraJian Zhi HuYong WangC.H.F. Peden
Keywords
VANADIUM-OXIDE CATALYSTS; TEMPERATURE-PROGRAMMED REDUCTION; SPINNING NMR-SPECTROSCOPY; OPTICAL-
Issue Date
2006-01
Publisher
ELSEVIER SCIENCE BV
Citation
APPLIED CATALYSIS A-GENERAL, v.300, no.2, pp.109 - 119
Abstract
The morphology of vanadium oxide supported on a titania-modified mesoporous silica (MCM-41), obtained by means of a careful grafting process through atomic layer deposition, was studied using a variety of characterization techniques. The X-ray diffraction (XRD) together with transmission electron microscopy (TEM), V-51 nuclear magnetic resonance (V-51-NMR), Raman, FTIR and DRS-UV/Vis results showed that the vanadia species are extremely well dispersed onto the surface of the mesoporous support; the dispersion being stable upon thermal treatments up to 400 degrees C. Studies of the catalytic activity of these materials were performed using the partial oxidation of ethanol as a probe reaction. The results indicate an intrinsic relationship between dispersion, the presence of a TiO2-VOx phase, and catalytic activity for oxidation and dehydration. (c) 2005 Elsevier B.V. All rights reserved
URI
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DOI
10.1016/j.apcata.2005.10.059
ISSN
0926-860X
Appears in Collections:
ECHE_Journal Papers
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