Aerogel VOx/MgO Catalysts for Oxidative Dehydrogenation of Propane Full article
| Conference |
III International Conference "Catalysis: fundamentals and application" 04-08 Jul 2007 , Novosibirsk |
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| Journal |
Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308 |
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| Output data | Year: 2009, Volume: 144, Number: 3-4, Pages: 278-284 Pages count : 7 DOI: 10.1016/j.cattod.2009.01.018 | ||||
| Tags | Aerogels, Iodine, Magnesium oxide, Nanoparticles, Oxidative dehydrogenation, Propane, Propene, Vanadium | ||||
| Authors |
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| Affiliations |
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Funding (4)
| 1 | Russian Foundation for Basic Research | 06-03-32540 |
| 2 | Russian Foundation for Basic Research | 06-03-32712 |
| 3 | Civilian Research and Development Foundation | RUE1-2893-NO-07 |
| 4 | United States Army Research Laboratory |
Abstract:
VOx/MgO aerogel catalysts were synthesized using three different preparation methods: by mixing the aerogel MgO support with dry ammonium vanadate, by vanadium deposition from a precursor solution in toluene, and by hydrolysis of a mixture of vanadium and magnesium alkoxides followed by co-gelation and supercritical drying. The latter aerogel technique allowed us to synthesize mixed vanadium–magnesium hydroxides with the surface areas exceeding 1300 m2/g. The synthesized catalysts were studied by a number of physicochemical methods (XRD, Raman spectroscopy, XANES and TEM). A common feature of all synthesized samples is the lack of V2O5 phase. In all cases vanadium was found to be a part of a surface mixed V–Mg oxide (magnesium vanadate), its structure depending on the synthesis method. The VOx/MgO mixed aerogel sample had the highest surface area 340 m2/g, showed higher catalytic activity and selectivity in oxidative dehydrogenation of propane compared to the catalysts prepared by impregnation and dry mixing. The addition of iodine vapor to the feed in 0.1–0.25 vol.% concentrations was found to increase to propylene yield by 40–70%.
Cite:
Mishakov I.V.
, Vedyagin A.A.
, Bedilo A.F.
, Zaikovskii V.I.
, Klabunde K.J.
Aerogel VOx/MgO Catalysts for Oxidative Dehydrogenation of Propane
Catalysis Today. 2009. V.144. N3-4. P.278-284. DOI: 10.1016/j.cattod.2009.01.018 WOS Scopus РИНЦ ANCAN OpenAlex
Aerogel VOx/MgO Catalysts for Oxidative Dehydrogenation of Propane
Catalysis Today. 2009. V.144. N3-4. P.278-284. DOI: 10.1016/j.cattod.2009.01.018 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Published online: | Feb 12, 2009 |
| Published print: | Jun 30, 2009 |
Identifiers:
| Web of science: | WOS:000267409100011 |
| Scopus: | 2-s2.0-66349106327 |
| Elibrary: | 13599507 |
| Chemical Abstracts: | 2009:664144 |
| Chemical Abstracts (print): | 151:173888 |
| OpenAlex: | W2019332181 |