A New Class of Highly Dispersed VOx Catalysts on Mesoporous Silica: Synthesis, Characterization, and Catalytic Activity in the Partial Oxidation of Ethanol

Journal Article · Thu Jan 26 04:00:00 EST 2006 · Applied Catalysis. A, General, 300(2):109-119

DOI:https://doi.org/10.1016/j.apcata.2005.10.059· OSTI ID:877549

Kwak, Ja Hun; Herrera, Jose E; Hu, Jian Zhi; Wang, Yong; Peden, Charles HF

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 XRD together with TEM, 51V-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 °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.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 877549
• Report Number(s): PNNL-SA-46146; 9103; 13490a; 13490; 10895; 10601; 6696; KC0302010
• Journal Information: Applied Catalysis. A, General, 300(2):109-119, Journal Name: Applied Catalysis. A, General, 300(2):109-119 Journal Issue: 2 Vol. 300; ISSN ACAGE4; ISSN 0926-860X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
DEHYDRATION
ETHANOL
Environmental Molecular Sciences Laboratory
PARTIAL OXIDATION PROCESSES
SILICA
SYNTHESIS
VANADIUM OXIDES