title: Structure-Reactivity Correlations in Vanadium-Containing Catalysts for One-Pot Glycerol Oxidehydration to Acrylic Acid.
abstract: The design of suitable catalysts for the one-pot conversion of glycerol into acrylic acid (AA) is a complex matter, as only fine-tuning of the redox and acid properties makes it possible to obtain significant yields of AA. However, fundamental understanding behind the catalytic phenomenon is still unclear. Structure-reactivity correlations are clearly behind these results, and acid sites are involved in the dehydration of glycerol into acrolein with vanadium as the main (or only) redox element. For the first time, we propose an in-depth study to shed light on the molecular-level relations behind the overall catalytic results shown by several types of V-containing catalysts. Different multifunctional catalysts were synthesized, characterized (>X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, temperature-programmed reduction, and temperature-programmed desorption of ammonia), and tested in a flow reactor. Combining the obtained results with those acquired from an in situ FTIR spectroscopy study with acrolein (a reaction intermediate), it was possible to draw conclusions on the role played by the various physicochemical features of the different oxides in terms of the adsorption, surface reactions, and desorption of the reagents and reaction products.
authors.affiliation: Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. Los Naranjos s/n, 46022, Valencia, Spain.|Dipartimento di Chimica Industriale, ALMA MATER STUDIORUM-Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy.|Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, 53706, Madison, WI, USA.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Chieregato
authors.affiliation: Dipartimento di Chimica Industriale, ALMA MATER STUDIORUM-Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy.
authors.forename: Claudia
authors.initials: C
authors.lastname: Bandinelli
authors.affiliation: Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. Los Naranjos s/n, 46022, Valencia, Spain.
authors.forename: Patricia
authors.initials: P
authors.lastname: Concepción
authors.affiliation: Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. Los Naranjos s/n, 46022, Valencia, Spain.
authors.forename: M Dolores
authors.initials: MD
authors.lastname: Soriano
authors.affiliation: Dipartimento di Chimica Industriale, ALMA MATER STUDIORUM-Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Puzzo
authors.affiliation: Dipartimento di Chimica Industriale, ALMA MATER STUDIORUM-Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Basile
authors.affiliation: Dipartimento di Chimica Industriale, ALMA MATER STUDIORUM-Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Cavani
authors.affiliation: Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. Los Naranjos s/n, 46022, Valencia, Spain.
authors.forename: José M López
authors.initials: JM
authors.lastname: Nieto
mesh_terms: D000171:Acrolein / Q000737:chemistry; D000179:Acrylates / Q000737:chemistry*; D002384:Catalysis; D055598:Chemical Phenomena; D005990:Glycerol / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D013329:Structure-Activity Relationship; D014639:Vanadium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000179:Acrylates; D010087:Oxides; D014639:Vanadium; D014867:Water; D000171:Acrolein; C036658:acrylic acid; D005990:Glycerol
keywords: oxidehydration; redox chemistry; structure-activity relationships; tungsten; vanadium