[EN] Present paper describes the influence of the incorporation of alkali metal cations (AM = Li, Na, K, Cs; and an AM/V ratio of 0.04) and Na-content (Na/V ratio of 0.02-0.30) in alkali metal promoted V2O5 catalyst on ...
Ivars Barceló, Francisco; Solsona Espriu, Benjamin Eduardo; Hernández Morejudo, Selene; López Nieto, José Manuel(Elsevier, 2010-01-30)
[EN] MoVTeNb mixed oxides catalysts have been prepared by a slurry method with different molar compositions (Mo/Te ratio from 2 to 6 and Nb/(V + Nb) ratio from 0 to 0.7) in the synthesis gel leading to different crystalline ...
Massó Ramírez, Amada; Ivars-Barceló, Francisco; López Nieto, José Manuel(Elsevier, 2020-10-01)
[EN] The investigation here presented studies the effect of the synthesis temperature (from 80 to 110 degrees C) and the time (from 1 to 4 days) employed to precipitate catalyst precursors by reflux method, on the ...
Ivars Barceló, Francisco(Universitat Politècnica de València, 2011-06-24)
La presente tesis doctoral muestra un estudio sobre la síntesis y caracterización de bronces basados en óxidos metálicos de Mo y V, para ser empelados como catalizadores en reacciones de oxidación parcial de hidrocarburos ...
Massó Ramírez, Amada(Universitat Politècnica de València, 2017-11-06)
SUMMARY
The current doctoral thesis studies the synthesis of Mo-V-Te-containing mixed metal oxides and the characterization of their physico-chemical and catalytic properties for alkanes selective oxidation reactions, such ...
Solsona Espriu, Benjamin Eduardo; López Nieto, José Manuel; Concepción Heydorn, Patricia; Dejoz, A.; Ivars Barceló, Francisco; Vazquez, M. I.(Elsevier, 2011-05-16)
Ni-W-O mixed oxides were prepared through the evaporation of aqueous solutions of nickel nitrate and ammonium tungstate and calcined in air at 500 degrees C for 2 h. The catalysts were characterized by several techniques ...
[EN] The robustness of one selected Ni-W-O catalyst has been studied in the oxidative dehydrogenation of ethane. This catalyst initially deactivates for the first 10 h online decreasing 15% of its catalytic activity compared ...
López Nieto, José Manuel; Solsona Espriu, Benjamin Eduardo; Concepción Heydorn, Patricia; Ivars Barceló, Francisco; Dejoz, A.; Vazquez, M. I.(Elsevier, 2010-11-17)
[EN] The catalytic properties of MoVTeNbO catalysts during the selective oxidation of short chain alkanes and olefins (C-2-C-4) have been comparatively studied The main reaction products have been ethylene from ethane ...
[EN] This work reports the applicability of reflux to the synthesis of Mo-V-Te-Nb-O metal oxide catalysts for the first time. The well-formed and defined orthorhombic M1 phase, i.e. Te2M20O57 (M = Mo, V, Nb), was found to ...
Ivars Barceló, Francisco; Solsona Espriu, Benjamin Eduardo; Botella Asuncion, Pablo; Soriano Rodríguez, Mª Dolores; López Nieto, José Manuel(Elsevier, 2009-03-30)
[EN] Alkali metal-doped MoVSbO catalysts have been prepared by impregnation of a MoVSbO-mixed oxide (prepared previously by a hydrothermal synthesis) and finally activated at 500 or 600 degrees C in N-2. The catalysts have ...
Ivars Barceló, Francisco; Solsona Espriu, Benjamin Eduardo; Rodriguez-Castellon, Enrique; López Nieto, José Manuel(Elsevier, 2009-02-15)
Nb-free (SbO)(2)M(20)O(56) catalysts (M = Mo, V) presenting pure M1 phase have been prepared by a post-synthesis treatment with hydrogen peroxide of a heat-treated MoVSbO mixed metal oxide catalyst previously prepared by ...
Ivars Barceló, Francisco; Millet, J. M. M.; Blasco Lanzuela, Teresa; Concepción Heydorn, Patricia; Valente, J. S.; López Nieto, José Manuel(Elsevier, 2014-12)
[EN] The effect of activation treatments of K-free and K-MoVSbO bronzes on either their physico-chemical characteristics or catalytic properties for propane partial oxidation have been studied. The as-synthesized materials, ...