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Taschenbuch. Zustand: Neu. A Study of Grafted Vanadium Oxides & V/Zr Mixed Oxides on Alumina | Synthesis and Characterization of Grafted Vanadium and Co-Grafted Vanadium/Zirconium Mixed Oxides on Gamma-Alumina Surface | Arindom Saha | Taschenbuch | 220 S. | Englisch | 2010 | LAP LAMBERT Academic Publishing | EAN 9783838312798 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.…

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book discusses studies pursued to identify the vanadium and zirconium oxidation states involved in successful catalytic production of hydrogen from steam reforming of hydrocarbons and alcohols. Vanadium oxides and vanadium/zirconium mixed oxides were loaded on to the support using grafting techniques. It was observed that the reaction of the respective, metal alkoxide precursors proceeded with surface hydroxyl groups slowly. These reactions resulted in 'single sites' of the metal oxides on the surface with sub-monolayer to monolayer coverage. The loadings were controlled by the various reaction conditions and also by the size of the precursor molecules. In co-grafting studies in all the reactions the Zr/V ratio in the feed was four. Surprisingly, very low zirconium loading was observed on the catalyst surface and in most cases it was lower than the corresponding vanadium loading. From TPR and XPS studies V4+ & V5+ were the oxidation states observed under both normal and rigorous reducing conditions. 220 pp. Englisch. …

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: SAHA ARINDOMThe author recieved his Phd in Inorganic Chemistry from University of Iowa in December of 2008.At present he is working as a Postdoctoral research scholar in the Dept. of Chemical Engineering at Stanford University. His a.…

Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book discusses studies pursued to identify the vanadium and zirconium oxidation states involved in successful catalytic production of hydrogen from steam reforming of hydrocarbons and alcohols. Vanadium oxides and vanadium/zirconium mixed oxides were loaded on to the support using grafting techniques. It was observed that the reaction of the respective, metal alkoxide precursors proceeded with surface hydroxyl groups slowly. These reactions resulted in 'single sites' of the metal oxides on the surface with sub-monolayer to monolayer coverage. The loadings were controlled by the various reaction conditions and also by the size of the precursor molecules. In co-grafting studies in all the reactions the Zr/V ratio in the feed was four. Surprisingly, very low zirconium loading was observed on the catalyst surface and in most cases it was lower than the corresponding vanadium loading. From TPR and XPS studies V4+ & V5+ were the oxidation states observed under both normal and rigorous reducing conditions.…

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book discusses studies pursued to identify the vanadium and zirconium oxidation states involved in successful catalytic production of hydrogen from steam reforming of hydrocarbons and alcohols. Vanadium oxides and vanadium/zirconium mixed oxides were loaded on to the support using grafting techniques. It was observed that the reaction of the respective, metal alkoxide precursors proceeded with surface hydroxyl groups slowly. These reactions resulted in 'single sites' of the metal oxides on the surface with sub-monolayer to monolayer coverage. The loadings were controlled by the various reaction conditions and also by the size of the precursor molecules. In co-grafting studies in all the reactions the Zr/V ratio in the feed was four. Surprisingly, very low zirconium loading was observed on the catalyst surface and in most cases it was lower than the corresponding vanadium loading. From TPR and XPS studies V4+ & V5+ were the oxidation states observed under both normal and rigorous reducing conditions.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 220 pp. Englisch.…