Abstract
Mixed oxides obtained by the calcination of hydrotalcite precursors intercalated with 30, 70 and 100 % of decavanadate (theoretical percentages) were used as catalysts for the oxidative dehydrogenation of propane. Propene selectivity values up to 80 % were reached under conditions of deficiency and excess of oxygen at 400 °C with the catalyst derived from the 70 % vanadium-intercalated precursor. The composition of precursors and catalysts was determined by thermogravimetry and X-ray fluorescence analyses; textural properties of the catalysts were evaluated by N2 adsorption. Characterization by X-ray diffraction and Raman spectroscopy confirmed the intercalation of polyoxometalate species into the interlayer space of the hydrotalcite phase. After calcination, the catalyst with the highest vanadium content exhibited mainly the magnesium pyrovanadate phase. EXAFS analyses at the vanadium K-edge confirmed the presence of decavanadate ion into the hydrotalcite precursor and formation of four-coordinated vanadate species in the calcined catalysts. Catalytic performances of the materials were interpreted on the basis of characterization results suggesting that the active and selective phase was magnesium pyrovanadate.
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References
Cavani F, Trifirò F (1999) Catal Today 51:561–580
Chen K, Bell AT, Iglesia E (2000) J Phys Chem B 104:1292–1299
Cavani F, Trifirò F, Vaccari A (1991) Catal Today 11:173–301
Holgado MJ, Rives V, San Román MS (2001) Appl Catal A 214:219–228
Holgado MJ, Labajos FM, Montero MJ, Rives V (2003) Res Bull 38:1879–1891
Gardner EA, Yun AK, Kwon T, Pinnavaia TJ (1998) Appl Clay Sci 13:479–494
Pope MT (1983) Heteropoly and isopoly oxometalates. Springer-Verlag, New York
Kim H, Youn MH, Jung JC, Song K (2006) J Mol Catal A 252:252–255
Dimitratos N, Védrine JC (2003) Catal Today 81:561–571
Bahranowski K, Bueno G, Cortés G, Kooli F, Serwicka EM, Valenzuela RX, Wcislo K (1999) Appl Catal A 185:65–73
Węgrzyn A, Rafalska-Łasocha A, Dudek B, Dziembaj R (2006) Catal Today 116:74–81
Dula R, Wcislo K, Stoch J, Grzybowska B, Serwicka EM, Kooli F, Bahranowski K, Gawel A (2002) Appl Catal A 230:281–291
Larson JW (1995) J Chem Eng Data 40:1276–1280
Newville M (2001) J Synch Rad 8:322–324
Rehr JJ, Albers RC (2000) Rev Mod Phys 72:621–654
Evans D, Slade R (2006) Struct Bond 119:1–87
De La Calle C, Pons CH, Roux J, Rives V (2003) Clays Clay Miner 51:121–132
Iida A, Ozeki T (2004) Acta Cryst C 60(4):i43–i46
Kraus W, Nolze G (1999) Powdercell for Windows, version 2.3. Federal Institute for Materials Research and Testing, Berlin
Harris D (2007) Quantitative chemical analysis, 7th edn. W. H. Freeman & Co, New York
Palmer SJ, Soisonard A, Frost RL (2009) J Colloid Interface Sci 329:404–409
Frost RL, Palmer SJ (2011) Spectrochim Acta Part A 78:248–252
Piro OE, Varetti EL, Brandán SA, Ben Altabef A (2003) J Chem Crystallogr 33:57–63
Voron’ko YK, Sobol’ AA, Shukshin VE (2005) Inorg Mater 41:1097–1106
Kung H, Chaar M, US Patent 4 777 319, 1988
Wachs EI, Chen C, Jehng J, Briand LE, Tanaka T (2003) Catal Today 78:13–24
Chary KVR, Ramesh K, Vidyasagar G, Venkat Rao V (2003) J Mol Catal A 198:195–204
Valverde JA, Echavarría A, Ribeiro MF, Palacio LA, Eon JG (2012) Catal Today 192:36–43
Chen K, Khodakov A, Yang J, Bell A, Iglesia E (1999) J Catal 186:325–333
Lemonidou AA, Machli M (2007) Catal Today 127:132–138
Karakoulia SA, Triantafyllidis KS, Tsilomelekis G, Boghosian S, Lemonidou AA (2009) Catal Today 141:245–253
Soenen V, Herrmann JM, Volta JC (1996) J Catal 159:410–417
Sam DSH, Soenen V, Volta JC (1990) J Catal 123:417–435
Owen OS, Kung MC, Kung HH (1992) Catal Lett 12:45–50
Gao X, Ruiz P, Xin Q, Guo X, Delmon B (1994) J Catal 148:56–67
Acknowledgments
This work was carried-out with a financial support of SENA and COLCIENCIAS. We acknowledge LNLS (Laboratório Nacional Luz Síncrotron – Campinas, Brazil) for XAS (Research project no. 1687) and XRD (Research project no. 6405) measurements, NUCAT and IQ (Universidade Federal do Rio de Janeiro, Brazil) for XRF and XRD analysis. J.-G. E. thanks CNPq (Conselho Nacional de Pesquisa e Desenvolvimento) of Brazil for support during this work.
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Valverde, J.A., Echavarría, A., Eon, JG. et al. V–Mg–Al catalyst from hydrotalcite for the oxidative dehydrogenation of propane. Reac Kinet Mech Cat 111, 679–696 (2014). https://doi.org/10.1007/s11144-014-0674-6
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DOI: https://doi.org/10.1007/s11144-014-0674-6