P. Patrono

Istituto di Metodologie Chimiche

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M.A. Massucci

Sapienza University of Rome

A. La Ginestra

Sapienza University of Rome

Carla Ferragina

Istituto di Metodologie Chimiche

Paola Gallì

Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani

F. Pinzari

Institute of Inorganic Methodologies and Plasmas

L. Lisi

Institute for Advanced Energy Technologies

Giovanna Ruoppolo

National Research Council

Gianguido Ramis

National Interuniversity Consortium of Materials Science and Technology

Guido Busca

University of Genoa

Anthony A. G. Tomlinson

University of Miami

Cooperative Institutions

University of Naples Federico II

National Research Council

University of Genoa

Sapienza University of Rome

Istituto di Metodologie Chimiche

National Interuniversity Consortium of Materials Science and Technology

Industriale Chimica (Italy)

Centre National de la Recherche Scientifique

Institute of Structure of Matter

Institute of Nanostructured Materials

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Layered zirconium-tin phosphates

Applied Catalysis (1991)

G. Bagnasco Paolo Ciambelli Maria Caterina Turco A. La Ginestra P. Patrono

Benzaldehyde

Zirconium phosphate

10.1016/s0166-9834(00)84094-4

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Citations (28)

Effect of the support on the surface composition of vanadium phosphate catalysts in the oxidative dehydrogenation of ethane

Surface and Interface Analysis (2004)

Maria Pia Casaletto L. Lisi G. Mattogno P. Patrono Giovanna Ruoppolo

Abstract Vanadyl phosphate catalysts supported on different oxides (γ‐Al 2 O 3 , TiO 2 , SiO 2 ) have been investigated by x‐ray photoelectron spectroscopy (XPS). The surface chemical composition has been studied as a function of the thermal treatment under oxidizing (calcination) or reaction conditions in the oxidative dehydrogenation of ethane. Dispersion of vanadyl phosphates on γ‐Al 2 O 3 and TiO 2 results in the formation of vanadium species in different oxidation states, i.e. V 5+ phosphate, V 5+ and V 4+ oxide species, whose relative fraction depends both on the support and on the reaction temperature. A progressive reduction of vanadium species occurs in the samples as an effect of the temperature. Vanadyl phosphates exhibit a stronger interaction with the titania support, which undergoes surface modifications after impregnation, thermal treatments and catalysis runs. A noticeable interaction of the alumina support and a poor dispersion of the active phase on silica are also revealed by XPS. Copyright © 2004 John Wiley & Sons, Ltd.

Oxidizing agent

Vanadium Oxide

10.1002/sia.1751

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From Homogeneous to Heterogeneous Catalysts in Biodiesel Production

Industrial & Engineering Chemistry Research (2007)

Martino Di Serio M. Cozzolino Maddalena Giordano Riccardo Tesser P. Patrono

The production of biodiesel as a fuel in diesel engines greatly increased in recent years and is expected to grow more and more in the near future. Increasing biodiesel consumption requires optimized production processes allowing high production capacities, simplified operations, high yields, and the use of more economic feedstocks such as waste oils and fats. However, the latter often contain large amounts of free fatty acids and cannot be processed with the commonly practiced technology based on the use of alkaline catalysts in the homogeneous phase that requires the use of highly refined oil as raw materials. Therefore, the development of processes for low-cost biodiesel production requires the individuation of heterogeneous catalysts that are very efficient in promoting the transesterification reaction also in the presence of free fatty acids and water, allowing the prompt separation of pure glycerol and not requiring expensive purification of this byproduct. In the present contribution, the performances of different heterogeneous catalysts are compared both in the absence and in the presence of free fatty acids. In some cases, the resistance of the catalysts to the presence of water and the eventual deactivating effects after the first use have also been tested. The catalysts considered are both basic and acidic in nature, such as hydrotalcite, MgO, TiO2 grafted on silica, vanadyl phosphate, and different metals-substituted vanadyl phosphate of the type Me(H2O)xVO1-xPO4·2H2O, where Me is a trivalent cation such as Al, Ga, Fe, and Cr and where x = 0.18−0.20. Finally, the understanding of the kinetic behavior of the most stable catalyst TiO2/SiO2 has been deepened.

Hydrotalcite

10.1021/ie070663q

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Citations (176)

Cobalt phthalocyanine encapsulated in Y zeolite: a physicochemical study

The Journal of Physical Chemistry (1993)

Edgardo Paez-Mozo Nyole Gabriunas Fabio Lucaccioni Dwight D. Acosta P. Patrono

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCobalt phthalocyanine encapsulated in Y zeolite: a physicochemical studyEdgardo Paez-Mozo, Nyole Gabriunas, Fabio Lucaccioni, Dwight D. Acosta, Pasquale Patrono, Aldo La Ginestra, Patricio Ruiz, and Bernard DelmonCite this: J. Phys. Chem. 1993, 97, 49, 12819–12827Publication Date (Print):December 1, 1993Publication History Published online1 May 2002Published inissue 1 December 1993https://pubs.acs.org/doi/10.1021/j100151a031https://doi.org/10.1021/j100151a031research-articleACS PublicationsRequest reuse permissionsArticle Views390Altmetric-Citations52LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts

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10.1021/j100151a031

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Citations (56)

Propane partial oxidation over M3+-substituted vanadyl phosphates dispersed on titania and silica

Applied Catalysis A General (2002)

S. Marengo P. Patrono P. Comotti Giovanni Galli Paola Gallì

Propane

Propene

Partial oxidation

Chemisorption

Physisorption

10.1016/s0926-860x(02)00003-0

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Citations (6)

Cooperation Between Phases in Mixed SnSbO Selective Oxidation Catalysts

Studies in surface science and catalysis (1990)

Lu‐Tao Weng E. Sham Patricio Ruíz B. Delmon P. Patrono

Methacrolein

Mixed oxide

Antimony oxide

10.1016/s0167-2991(08)60214-1

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Citations (4)

Intercalation compounds of α-zirconium hydrogen phosphate with Rh^IIIions and Rh^III-diamine complexes. Part 1.—Preparation, thermal behaviour and X-ray photoelectron spectroscopy investigation

Journal of Materials Chemistry (1995)

Carla Ferragina A. La Ginestra M.A. Massucci G. Mattogno P. Patrono

Rhodium(III) can be exchanged between the layers of α-zirconium phosphate by employing the pre-swelled diethanol intercalate, α-Zr(HPO4)2(ethanol)2. During the Rh3+/H+ exchange, four rhodium-containing phases are formed with different interlayer distances. However, only the fully Rh-exchanged compound, α-ZrRh0.66(PO4)2.4H2O, is obtained as a pure phase. Rhodium(III) can also be exchanged into the layered intercalation compounds α-Zr(HPO4)2(bipy)0.251.5H2O (bipy = 2,2′-bipyridyl), α-Zr(HPO4)2(phen)0.52H2O (phen = 1,10-phenanthroline) and aZr(HPO4)2(dmp)0.5·2.5H2O (dmp = 2,9-α-dimethyl-1,10-phenanthroline). Exchange is accompanied by a partial elution of the diamine for the phen and dmp derivatives. Various materials are obtained and their thermal properties discussed. X-Ray photoelectron spectroscopy (XPS) gives evidence that RhIII-diamine complex species mixed N- and O-coordinated RhIII are formed in the interlayer region of the three intercalation compounds.

Zirconium phosphate

10.1039/jm9950500461

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Citations (20)

Oxidative dehydrogenation of ethane on γ-Al2O3 supported vanadyl and iron vanadyl phosphates Physico-chemical characterisation and catalytic activity

Applied Catalysis A General (2002)

Maria Pia Casaletto L. Lisi G. Mattogno P. Patrono Giovanna Ruoppolo

Thermal desorption spectroscopy

10.1016/s0926-860x(01)00881-x

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Citations (37)

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