1,721,136 research outputs found
Surface Dynamics of Adsorbed Species On Heterogeneous Oxidation Catalysts - Evidence From the Oxidation of C-4 and C5 Alkanes On Vanadyl Pyrophosphate
No full textEnvironmental catalysis - 1st World Conference Environmental Catalysis for a Better World and Life held in Pisa, Italy May 1-5, 1995 - Preface
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Sustainable Development and Chemistry
No full textSustainability and Chemistry—Approaches
Methods and Tools
Accounting for Sustainability: Metrics
Sustainable Chemical Production: from Theory to Practic
Modification of the Surface Pathways In Alkane Oxidation By Selective Doping of Bronsted Acid Sites of Vanadyl Pyrophosphate
No full text"On the chemistry of vanadium-phosphorus oxides. Note V: Crystallogenesis of vanadyl hidrogen phosphate"
No full text"Influence of composition on the thermal behaviour of chemically deposited nickel-phosphorus alloys"
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n-Butane selective oxidation on vanadium-based oxides : Dependence on catalyst microstructure
No full text“Stopped-Flow Desorption” Analysis of the Nature of Strongly Adsorbed Species During n-Butane Oxidation in a Flow Reactor
No full textThe presence and the evolution as a function of time of strongly adsorbed species during n-butane oxidation in a flow reactor was studied by "stopped-flow desorption" experiments and by thermogravimetric and Fourier-transform infrared analyses on a (VO)2P2O 7 catalyst highly active/selective in the conversion of n- butane to maleic anhydride. In particular, the presence of an adsorbed species was found which desorbs as crotona1dehyde only at temperatures around 100 K higher than the reaction temperature (573 K). The parallel increase in the amount of this species formed with the change in catalytic behavior (a decrease in the rate of n-butane depletion with a parallel increase in the rate of maleic anhydride formation) suggests that due to the reduced turnover number, the formation of strongly adsorbed species causes catalyst deactivation by site blocking, but at the same time allows controlled reactivity of the surface which prevents the consecutive oxidation of maleic anhydride to carbon oxides. © 1987 Elsevier Science Publishers B.V
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