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Zanardo D, Forghieri G, Ghedini E, Menegazzo F, Giordana A, Cerrato G, Cattaruzza E, Di Michele A, Cruciani G, Signoretto M. Effect of the Synthetic Parameters over ZnO in the CO 2 Photoreduction. Molecules 2023; 28:4798. [PMID: 37375353 DOI: 10.3390/molecules28124798] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Zinc oxide (ZnO) is an attractive semiconductor material for photocatalytic applications, owing to its opto-electronic properties. Its performances are, however, strongly affected by the surface and opto-electronic properties (i.e., surface composition, facets and defects), in turn related to the synthesis conditions. The knowledge on how these properties can be tuned and how they are reflected on the photocatalytic performances (activity and stability) is thus essential to achieve an active and stable material. In this work, we studied how the annealing temperature (400 °C vs. 600 °C) and the addition of a promoter (titanium dioxide, TiO2) can affect the physico-chemical properties of ZnO materials, in particular surface and opto-electronic ones, prepared through a wet-chemistry method. Then, we explored the application of ZnO as a photocatalyst in CO2 photoreduction, an appealing light-to-fuel conversion process, with the aim to understand how the above-mentioned properties can affect the photocatalytic activity and selectivity. We eventually assessed the capability of ZnO to act as both photocatalyst and CO2 adsorber, thus allowing the exploitation of diluted CO2 sources as a carbon source.
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Affiliation(s)
- Danny Zanardo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM-RU Ve, 30172 Venice, Italy
- Center for Sensors and Devices, Fondazione Bruno Kessler, 38123 Trento, Italy
| | - Giulia Forghieri
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM-RU Ve, 30172 Venice, Italy
| | - Elena Ghedini
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM-RU Ve, 30172 Venice, Italy
| | - Federica Menegazzo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM-RU Ve, 30172 Venice, Italy
| | - Alessia Giordana
- Department of Chemistry and NIS Interdept, Centre and Consortium INSTM, University of Turin, 10125 Turin, Italy
| | - Giuseppina Cerrato
- Department of Chemistry and NIS Interdept, Centre and Consortium INSTM, University of Turin, 10125 Turin, Italy
| | - Elti Cattaruzza
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, 30172 Venice, Italy
| | | | - Giuseppe Cruciani
- Department of Physics and Earth Science, University of Ferrara, 44122 Ferrara, Italy
| | - Michela Signoretto
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM-RU Ve, 30172 Venice, Italy
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2
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Longo L, Taghavi S, Riello M, Ghedini E, Menegazzo F, Di Michele A, Cruciani G, Signoretto M. Waste biomasses as precursors of catalytic supports in benzaldehyde hydrogenation. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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3
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Taghavi S, Mäki-Arvela P, Vajglová Z, Peurla M, Angervo I, Eränen K, Ghedini E, Menegazzo F, Zendehdel M, Signoretto M, Murzin DY. One-Pot Transformation of Citronellal to Menthol Over H-Beta Zeolite Supported Ni Catalyst: Effect of Catalyst Support Acidity and Ni Loading. Catal Letters 2022. [DOI: 10.1007/s10562-022-04178-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractCitronellal was converted to menthol in a one-pot approach using H-Beta zeolite-based Ni catalyst in a batch reactor at 80 °C, under 20 bar of total pressure. The effects of H-Beta acidity (H-Beta-25 with the molar ratio SiO2/Al2O3 = 25 and H-Beta-300 with SiO2/Al2O3 = 300) and Ni loading (5, 10 and 15 wt %) on the catalytic performance were investigated. Ni was impregnated on H-Beta support using the evaporation-impregnation method. The physico-chemical properties of the catalysts were characterized by XRD, SEM, TEM, ICP-OES, N2 physisorption, TPR, and pyridine adsorption–desorption FTIR techniques. Activity and selectivity of catalysts were strongly affected by the Brønsted and Lewis acid sites concentration and strength, Ni loading, its particle size and dispersion. A synergetic effect of appropriate acidity and suitable Ni loading in 15 wt.% Ni/H-Beta-25 catalyst led to the best performance giving 36% yield of menthols and 77% stereoselectivity to ( ±)-menthol isomer at 93% citronellal conversion. Moreover, the catalyst was successfully regenerated and reused giving similar activity, selectivity and stereoselectivity to the desired ( ±)-menthol isomer as the fresh one.
Graphical Abstract
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4
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Longo L, Taghavi S, Ghedini E, Menegazzo F, Di Michele A, Cruciani G, Signoretto M. Selective Hydrogenation of 5-Hydroxymethylfurfural to 1-Hydroxy-2,5-hexanedione by Biochar-Supported Ru Catalysts. ChemSusChem 2022; 15:e202200437. [PMID: 35394696 DOI: 10.1002/cssc.202200437] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/06/2022] [Indexed: 06/14/2023]
Abstract
The development of sustainable and efficient catalysts -namely Ru supported on activated biochars- is carried out for the selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 1-hydroxy-2,5-hexanedione (HHD). Activated biochars obtained from pyrolysis and steam-based physical activation of two different biomasses from animal (leather tannery waste; ALw ) and vegetal (hazelnut shells; AHSw ) origins show completely different chemical, textural, and morphological properties. Compared to ALw , after impregnation with 0.5 wt % Ru, AHSw , with inner micro-mesochannels and cavities and higher layer stacking disorder, leads to better trapping and anchoring of Ru nanoparticles on the catalyst and a suitable Ru single crystal dispersion. This leads to a highly active Ru/AHSw catalyst in the proposed reaction, giving more than 80 % selectivity to HHD and full HMF conversion at 100 °C with 30 bar H2 for 3 h. Ru/AHSw also shows promising performance compared to a commercial Ru/C catalyst.
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Affiliation(s)
- Lilia Longo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM RUVe, via Torino 155, 30172, Venezia Mestre, Italy
| | - Somayeh Taghavi
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM RUVe, via Torino 155, 30172, Venezia Mestre, Italy
| | - Elena Ghedini
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM RUVe, via Torino 155, 30172, Venezia Mestre, Italy
| | - Federica Menegazzo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM RUVe, via Torino 155, 30172, Venezia Mestre, Italy
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123, Perugia, Italy
| | - Giuseppe Cruciani
- Department of Physics and Earth Science, University of Ferrara, Via Saragat 1, 44122, Ferrara, Italy
| | - Michela Signoretto
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice and INSTM RUVe, via Torino 155, 30172, Venezia Mestre, Italy
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5
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Taghavi S, Ghedini E, Menegazzo F, Mäki-Arvela P, Peurla M, Zendehdel M, Cruciani G, Di Michele A, Murzin DY, Signoretto M. CuZSM-5@HMS composite as an efficient micro-mesoporous catalyst for conversion of sugars into levulinic acid. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.11.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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6
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Cerrato G, Martra G, Viscardi G, Signoretto M. TiO₂-Chitosan Hybrid Materials for Drug Delivery Applications: Conjugation Reaction with a Model Drug and Evaluation of the Functional Properties. J Nanosci Nanotechnol 2021; 21:2892-2900. [PMID: 33653455 DOI: 10.1166/jnn.2021.19050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The combination of TiO₂ and chitosan is known to allow the achievement of implantable devices which combines the mechanical properties of TiO₂, with the presence of chitosan, which ensures antibacterial properties combined with an in-situ drug-delivery of biomolecules physisorbed and/or covalently linked to chitosan. In this study, 5-aminofluorescein (5-AF), a derivative of fluorescein containing a primary amino group, has been used as model molecule to simulate a drug. This dye is characterized by low cost and low toxicity, and due to its high molar absorptivity it can easily be detected by means of absorption and emission spectroscopies. The combination of 5-AF and maleic anhydride (MA) with TiO₂-chitosan materials has generated a range of novel hybrid materials tailored to applications in localized stimuli-responsive drug delivery systems. Maleic anhydride has been used as pH sensitive spacer for the covalent functionalization of the TiO₂-chitosan hybrid with MA as linker molecule. This functionalization allowed to obtain a pH-sensitive hybrid material. The efficiency of the functionalization has been verified by means of different physico-chemical characterization techniques. The behaviour of the functionalized materials is related to different parameters, among which the ratio between physisorbed/coordinated and chemisorbed 5-AF and the matrix degradation. Moreover, delivery tests in simulated body solutions at different pH have been performed showing a pH-sensitive drug delivery behaviour and indicating that the release of 5-AF is favoured at basic pH.
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Affiliation(s)
- Giuseppina Cerrato
- Dipartimento di Chimica & Centro Interdipartimentale NIS (Nanostructured Interfaces and Surfaces) Università di Torino & Consorzio Interuniversitario Nazionale per la Scienza a la Tecnologia dei Materiali-Unità di Ricerca di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Gianmario Martra
- Dipartimento di Chimica & Centro Interdipartimentale NIS (Nanostructured Interfaces and Surfaces) Università di Torino & Consorzio Interuniversitario Nazionale per la Scienza a la Tecnologia dei Materiali-Unità di Ricerca di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Guido Viscardi
- Dipartimento di Chimica & Centro Interdipartimentale NIS (Nanostructured Interfaces and Surfaces) Università di Torino & Consorzio Interuniversitario Nazionale per la Scienza a la Tecnologia dei Materiali-Unità di Ricerca di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Michela Signoretto
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia & Consorzio Interuniversitario Nazionale per la Scienza a la Tecnologia dei Materiali-Unità di Ricerca di Venezia, via Torino 155, 30172 Mestre Venezi, Italy
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7
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Ghedini E, Pizzolato M, Longo L, Menegazzo F, Zanardo D, Signoretto M. Which Are the Main Surface Disinfection Approaches at the Time of SARS-CoV-2? Front Chem Eng 2021. [DOI: 10.3389/fceng.2020.589202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Among many guidelines issued by the World Health Organization to prevent contagion from novel coronavirus (SARS-CoV-2), disinfection of animate and inanimate surfaces has emerged as a key issue. One effective approach to prevent its propagation can be achieved by disinfecting air, skin, or surfaces. A thorough and rational application of an Environmental Protection Agent for disinfection of surfaces, as well as a good personal hygiene, including cleaning hands with appropriate products (e.g., 60–90% alcohol-based product) should minimize transmission of viral respiratory pathogens such as SARS-CoV-2. Critical issues, associated with the potential health hazard of chemical disinfectants and the ineffective duration of most of the treatments, have fostered the introduction of innovative and alternative disinfection approaches. The present review aims to provide an outline of methods currently used for inanimate surface disinfection with a look to the future and a focus on the development of innovative and effective disinfection approaches (e.g., metal nanoparticles, photocatalysis, self-cleaning, and self-disinfection) with particular focus on SARS-CoV-2. The research reviews are, usually, focused on a specific category of disinfection methods, and therefore they are limited. On the contrary, a panoramic review with a wider focus, as the one here proposed, can be an added value for operators in the sector and generally for the scientific community.
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Pizzolitto C, Ghedini E, Menegazzo F, Signoretto M, Giordana A, Cerrato G, Cruciani G. Effect of grafting solvent in the optimisation of Sba-15 acidity for levulinIc acid production. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.11.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Grillo G, Menegazzo F, Tabasso S, Signoretto M, Manzoli M, Cravotto G. New Insights on the Dynamic Role of the Protecting Agent on the Reactivity of Supported Gold Nanoparticles. ChemCatChem 2020. [DOI: 10.1002/cctc.201902061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Giorgio Grillo
- Department of Drug Science and Technology and NIS Centre for Nanostructured Interfaces and SurfacesUniversity of Turin Via Pietro Giuria 9 Turin 10125 Italy
| | - Federica Menegazzo
- CATMAT Lab Department of Molecular Sciences and NanosystemsCa' Foscari University Venice and INSTM Consortium RU Ve Via Torino 155 Venezia Mestre 30170 Italy
| | - Silvia Tabasso
- Department of ChemistryUniversity of Turin Via Pietro Giuria 7 Turin 10125 Italy
| | - Michela Signoretto
- CATMAT Lab Department of Molecular Sciences and NanosystemsCa' Foscari University Venice and INSTM Consortium RU Ve Via Torino 155 Venezia Mestre 30170 Italy
| | - Maela Manzoli
- Department of Drug Science and Technology and NIS Centre for Nanostructured Interfaces and SurfacesUniversity of Turin Via Pietro Giuria 9 Turin 10125 Italy
| | - Giancarlo Cravotto
- Department of Drug Science and Technology and NIS Centre for Nanostructured Interfaces and SurfacesUniversity of Turin Via Pietro Giuria 9 Turin 10125 Italy
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10
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Olivo A, Thompson WA, Bay ERB, Ghedini E, Menegazzo F, Maroto-Valer M, Signoretto M. Investigation of process parameters assessment via design of experiments for CO2 photoreduction in two photoreactors. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Bucciol F, Tabasso S, Grillo G, Menegazzo F, Signoretto M, Manzoli M, Cravotto G. Boosting levulinic acid hydrogenation to value-added 1,4-pentanediol using microwave-assisted gold catalysis. J Catal 2019. [DOI: 10.1016/j.jcat.2019.09.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Ghedini E, Menegazzo F, Manzoli M, Di Michele A, Puglia D, Signoretto M. Multifunctional and Environmentally Friendly TiO 2-SiO 2 Mesoporous Materials for Sustainable Green Buildings. Molecules 2019; 24:molecules24234226. [PMID: 31757106 PMCID: PMC6930548 DOI: 10.3390/molecules24234226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/12/2019] [Accepted: 11/15/2019] [Indexed: 11/16/2022] Open
Abstract
This work deals with the formulation of environmentally friendly, cheap, and readily-available materials for green building applications, providing the function of air purificator by improving the safety and the comfort of an indoor environment. High surface area TiO2–SiO2 samples, prepared by a simple, cost effective, and scalable synthetic approach, proved to be effective in maximizing the properties of each component, i.e., the photocatalytic properties of titania and the high surface area of silica. TiO2 was introduced onto an ordered mesoporous silica Santa Barbara Amorphous-15 (SBA-15), that is featured by interesting insulating features, by using an incipient wetness impregnation method. The photocatalytic activity was evaluated in gas phase oxidation of ethylbenzene, which was selected as model volatile organic compound (VOC) molecule. The morphological, textural and structural features along with the electronic properties, the hydrophilicity and heat capacity of the materials were investigated in depth by scanning electron microscopy, powder X-ray diffraction, N2 physisorption, diffuse reflectance UV-Vis, FT-IR spectroscopies, and modulated DSC (MDSC) dynamic scan. Outstanding performances in the ethylbenzene abatement results are promising for further application in the green building sector.
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Affiliation(s)
- Elena Ghedini
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca’ Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy; (E.G.); (F.M.)
| | - Federica Menegazzo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca’ Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy; (E.G.); (F.M.)
| | - Maela Manzoli
- Department of Drug Science and Technology & NIS—Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 7, 10125 Turin, Italy;
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123 Perugia, Italy;
| | - Debora Puglia
- Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy;
| | - Michela Signoretto
- CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca’ Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy; (E.G.); (F.M.)
- Correspondence: ; Tel.: +39-041-234-8650
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Zanardo D, Ghedini E, Menegazzo F, Cattaruzza E, Manzoli M, Cruciani G, Signoretto M. Titanium Dioxide-Based Nanocomposites for Enhanced Gas-Phase Photodehydrogenation. Materials (Basel) 2019; 12:ma12193093. [PMID: 31547485 PMCID: PMC6804072 DOI: 10.3390/ma12193093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 11/16/2022]
Abstract
Light-driven processes can be regarded as a promising technology for chemical production within the bio-refinery concept, due to the very mild operative conditions and high selectivity of some reactions. In this work, we report copper oxide (CuO)-titanium dioxide (TiO2) nanocomposites to be efficient and selective photocatalysts for ethanol photodehydrogenation under gas phase conditions, affording 12-fold activity improvement compared to bare TiO2. In particular, the insertion method of the CuO co-catalyst in different TiO2 materials and its effects on the photocatalytic activity were studied. The most active CuO co-catalyst was observed to be highly dispersed on titania surface, and highly reducible. Moreover, such high dispersion was observed to passivate some surface sites where ethanol is strongly adsorbed, thus improving the activity. This kind of material can be obtained by the proper selection of loading technique for both co-catalysts, allowing a higher coverage of photocatalyst surface (complex-precipitation in the present work), and the choice of titania material itself. Loading copper on a high surface area titania was observed to afford a limited ethanol conversion, due to its intrinsically higher reactivity affording to a strong interaction with the co-catalyst.
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Affiliation(s)
- Danny Zanardo
- CatMat Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy.
| | - Elena Ghedini
- CatMat Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy.
| | - Federica Menegazzo
- CatMat Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy.
| | - Elti Cattaruzza
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University Venice, Via Torino 155, 30172 Venezia, Italy.
| | - Maela Manzoli
- Department of Drug Science and Technology, University of Turin, 10125, Via P. Giuria 9, 10125 Turin, Italy.
| | - Giuseppe Cruciani
- Department of Physics and Earth Sciences, University of Ferrara, Via G. Saragat 1, I-44122 Ferrara, Italy.
| | - Michela Signoretto
- CatMat Lab, Department of Molecular Sciences and Nanosystems, Ca' Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy.
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14
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Thompson WA, Olivo A, Zanardo D, Cruciani G, Menegazzo F, Signoretto M, Maroto-Valer MM. Systematic study of TiO2/ZnO mixed metal oxides for CO2 photoreduction. RSC Adv 2019; 9:21660-21666. [PMID: 35518894 PMCID: PMC9066424 DOI: 10.1039/c9ra03435h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 07/01/2019] [Indexed: 11/21/2022] Open
Abstract
A novel example using a systematic design of experiments mixture design for developing mixed metal oxide photocatalysts for CO2 photoreduction.
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Affiliation(s)
- Warren A. Thompson
- Research Centre for Carbon Solutions (RCCS)
- School of Engineering & Physical Sciences
- HeriotWatt University
- Edinburgh
- UK
| | | | - Danny Zanardo
- CatMat Lab
- Dept. of Molecular Sciences and Nanosystems
- Ca' Foscari University Venice
- Consortium INSTM
- RU of Venice
| | - Giuseppe Cruciani
- Department of Physics and Earth Sciences
- University of Ferrara
- Ferrara
- Italy
| | - Federica Menegazzo
- CatMat Lab
- Dept. of Molecular Sciences and Nanosystems
- Ca' Foscari University Venice
- Consortium INSTM
- RU of Venice
| | - Michela Signoretto
- CatMat Lab
- Dept. of Molecular Sciences and Nanosystems
- Ca' Foscari University Venice
- Consortium INSTM
- RU of Venice
| | - M. Mercedes Maroto-Valer
- Research Centre for Carbon Solutions (RCCS)
- School of Engineering & Physical Sciences
- HeriotWatt University
- Edinburgh
- UK
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Menegazzo F, Manzoli M, di Michele A, Ghedini E, Signoretto M. Supported Gold Nanoparticles for Furfural Valorization in the Future Bio-based Industry. Top Catal 2018. [DOI: 10.1007/s11244-018-1003-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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16
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Pinton N, Vidal M, Signoretto M, Martínez-Arias A, Cortés Corberán V. Ethanol steam reforming on nanostructured catalysts of Ni, Co and CeO 2 : Influence of synthesis method on activity, deactivation and regenerability. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.06.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Menegazzo F, Pizzolitto C, Zanardo D, Signoretto M, Buysschaert C, Bény G, Di Michele A. Hydrogen Production by Ethanol Steam Reforming on Ni-Based Catalysts: Effect of the Support and of CaO and Au Doping. ChemistrySelect 2017. [DOI: 10.1002/slct.201702053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Federica Menegazzo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems; Ca'Foscari University Venice and INSTM-RU Ve; Via Torino 155 30172 Venezia Mestre Italy
| | - Cristina Pizzolitto
- CATMAT Lab, Department of Molecular Sciences and Nanosystems; Ca'Foscari University Venice and INSTM-RU Ve; Via Torino 155 30172 Venezia Mestre Italy
| | - Danny Zanardo
- CATMAT Lab, Department of Molecular Sciences and Nanosystems; Ca'Foscari University Venice and INSTM-RU Ve; Via Torino 155 30172 Venezia Mestre Italy
| | - Michela Signoretto
- CATMAT Lab, Department of Molecular Sciences and Nanosystems; Ca'Foscari University Venice and INSTM-RU Ve; Via Torino 155 30172 Venezia Mestre Italy
| | - Cas Buysschaert
- Chemical Engineering, Faculty of Engineering Technology; Campus Group T Leuven; Vesaliusstraat 13 3000 Leuven Belgium
| | - Guido Bény
- Chemical Engineering, Faculty of Engineering Technology; Campus Group T Leuven; Vesaliusstraat 13 3000 Leuven Belgium
| | - Alessandro Di Michele
- Physics and Geology Department; University of Perugia; Via Pascoli 06123 Perugia Italy
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18
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Olivo A, Ghedini E, Pinna F, Marchese D, Signoretto M, Cruciani G, Manzoli M. Tuning the Synthetic Parameters to Obtain Smart C-N Co-Doped Titania Photocatalysts for NOx Abatement. ChemistrySelect 2017. [DOI: 10.1002/slct.201601719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- A. Olivo
- Dept. of Molecular Sciences and Nanosystems; Ca' Foscari University Venice and Consortium INSTM, RU of Venice; Via Torino 155 30172 Venezia Italy
| | - E. Ghedini
- Dept. of Molecular Sciences and Nanosystems; Ca' Foscari University Venice and Consortium INSTM, RU of Venice; Via Torino 155 30172 Venezia Italy
| | - F. Pinna
- Dept. of Molecular Sciences and Nanosystems; Ca' Foscari University Venice and Consortium INSTM, RU of Venice; Via Torino 155 30172 Venezia Italy
| | - D. Marchese
- Dept. of Molecular Sciences and Nanosystems; Ca' Foscari University Venice and Consortium INSTM, RU of Venice; Via Torino 155 30172 Venezia Italy
| | - M. Signoretto
- Dept. of Molecular Sciences and Nanosystems; Ca' Foscari University Venice and Consortium INSTM, RU of Venice; Via Torino 155 30172 Venezia Italy
| | - G. Cruciani
- Dept. of Physics and Earth Sciences; University of Ferrara; Via G. Saragat 1 I-44122 Ferrara Italy
| | - M. Manzoli
- Dept. of Drug Science and Technology & NIS Interdepartmental Centre; University of Turin; Via P. Giuria 7 10125 Turin Italy
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Signoretto M, Suárez I, Chirvony VS, Abargues R, Rodríguez-Cantó PJ, Martínez-Pastor J. Polymer waveguide couplers based on metal nanoparticle-polymer nanocomposites. Nanotechnology 2015; 26:475201. [PMID: 26526708 DOI: 10.1088/0957-4484/26/47/475201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work Au nanoparticles (AuNPs) are incorporated into poly(methyl methacrylate) (PMMA) waveguides to develop optical couplers that are compatible with planar organic polymer photonics. A method for growing AuNPs (of 10 to 100 nm in size) inside the commercially available Novolak resist is proposed with the intention of tuning the plasmon resonance and the absorption/scattering efficiencies inside the patterned structures. The refractive index of the MNP-Novolak nanocomposite (MNPs: noble metal nanoparticles) is carefully analysed both experimentally and numerically in order to find the appropriate fabrication conditions (filling factor and growth time) to optimize the scattering cross section at a desired wavelength. Then the nanocomposite is patterned inside a PMMA waveguide to exploit its scattering properties to couple and guide a normal incident laser light beam along the polymer. In this way, light coupling is experimentally demonstrated in a broad wavelength range (404-780 nm). Due to the elliptical shape of the MNPs the nanocomposite demonstrates a birefringence, which enhances the coupling to the TE mode up to efficiencies of around 1%.
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Affiliation(s)
- M Signoretto
- UMDO (Unidad Asociada al CSIC-IMM), Instituto de Ciencia de Materiales, Universidad de Valencia, PO Box 22085, 46007 Valencia, Spain
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Manzoli M, Menegazzo F, Signoretto M, Cruciani G, Pinna F. Effects of synthetic parameters on the catalytic performance of Au/CeO2 for furfural oxidative esterification. J Catal 2015. [DOI: 10.1016/j.jcat.2015.07.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Menegazzo F, Signoretto M, Marchese D, Pinna F, Manzoli M. Structure–activity relationships of Au/ZrO2 catalysts for 5-hydroxymethylfurfural oxidative esterification: Effects of zirconia sulphation on gold dispersion, position and shape. J Catal 2015. [DOI: 10.1016/j.jcat.2015.03.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ongaro M, Mardegan A, Stortini AM, Signoretto M, Ugo P. Arrays of templated TiO2 nanofibres as improved photoanodes for water splitting under visible light. Nanotechnology 2015; 26:165402. [PMID: 25824700 DOI: 10.1088/0957-4484/26/16/165402] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Arrays of TiO2 nanofibres (NFs) were successfully prepared by template sol-gel synthesis, using track-etched polycarbonate membranes as structure directing agent. The control of the sol-gel kinetic was crucial in order to homogeneously fill the pores with a continuous framework. For this reason acetylacetone was added to the sol-gel mixture as chelating agent. The band edge positions of TiO2 NFs were determined by a Mott-Schottky plot and diffuse reflectance analysis. The results support the presence of trace dopants which can act favorably with respect to the photoelectrochemical properties. The TiO2 NFs array showed enhanced photoelectrochemical activity both under UV light and visible light when used as photoanodes for the water splitting reaction.
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Affiliation(s)
- M Ongaro
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Santa Marta 2137, I-30123 Venice, Italy
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Gligorijević I, Sleutjes BTHM, De Vos M, Blok JH, Montfoort I, Mijović B, Signoretto M, Van Huffel S. Motor Unit Tracking Using High Density Surface Electromyography (HDsEMG) . Automated Correction of Electrode Displacement Errors. Methods Inf Med 2014; 54:221-6. [PMID: 25426806 DOI: 10.3414/me13-02-0049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 08/07/2014] [Indexed: 11/09/2022]
Abstract
INTRODUCTION This article is part of the Focus Theme of Methods of Information in Medicine on "Biosignal Interpretation: Ad-vanced Methods for Neural Signals and Images". OBJECTIVES The study discusses a technique to automatically correct for effects of electrode grid displacement across serial surface EMG measurements with high-density electrode arrays (HDsEMG). The goal is to match motor unit signatures from subsequent measurements and by this, achieve automated motor unit tracking. METHODS Test recordings of voluntary muscle contractions using HDsEMG were performed on three healthy individuals. Electrode grid displacements were mimicked in repeated recordings while measuring the exact position of the grid. A concept of accounting for translational and rotational displacements by making the projection of the recorded motor unit action potentials is first introduced. Then, this concept was tested for the performed measurements attempting the automated matching of the similar motor unit action potentials across different trials. RESULTS The ability to perform automated correction (projection) of the isolated motor unit action potentials was first shown using large angular displacements. Then, for accidental (small) displacements of the recording grid, the ability to automatically track motor units across different measurement trials was shown. It was possible to track 10 -15% of identified motor units. CONCLUSIONS This proof of concept study demonstrates an automated correction allowing the identification of an increased number of same motor unit action potentials across different measurements. By this, great potential is demonstrated for assisting motor unit tracking studies, indicating that otherwise electrode displacements cannot always be precisely described.
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Affiliation(s)
- I Gligorijević
- Ivan Gligorijević, Ph.D., Faculty of Engineering Department of Electrical Engineering (ESAT), Division SCD/SISTA, KU Leuven, Kasteelpark Arenberg 10 postbus 2440, 3001 Heverlee, Belgium, E-mail:
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Nichele V, Signoretto M, Pinna F, Ghedini E, Compagnoni M, Rossetti I, Cruciani G, Di Michele A. Bimetallic Ni–Cu Catalysts for the Low-Temperature Ethanol Steam Reforming: Importance of Metal–Support Interactions. Catal Letters 2014. [DOI: 10.1007/s10562-014-1414-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Trevisan V, Ghedini E, Signoretto M, Pinna F, Bianchi C. Quantitative determination of carbon in titania photocatalysts by temperature programmed oxidation method. Microchem J 2014. [DOI: 10.1016/j.microc.2013.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rossetti I, Gallo A, Dal Santo V, Bianchi CL, Nichele V, Signoretto M, Finocchio E, Ramis G, Di Michele A. Nickel Catalysts Supported Over TiO2, SiO2and ZrO2for the Steam Reforming of Glycerol. ChemCatChem 2012. [DOI: 10.1002/cctc.201200481] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ghedini E, Nichele V, Signoretto M, Cerrato G. Structure-directing agents for the synthesis of TiO(2) -based drug-delivery systems. Chemistry 2012; 18:10653-60. [PMID: 22767402 DOI: 10.1002/chem.201201355] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Indexed: 11/08/2022]
Abstract
A series of titanium oxides was prepared by using a surfactant-template method (STM) and used as a carrier for the sustained release of ibuprofen, which was chosen as a model drug. This STM provides an efficient route to TiO(2) matrices with both high surface area (when compared with those that were obtained by using traditional synthetic approaches) and well-defined mesoporous textures. Some parameters of the synthetic procedure were varied: pH value, surfactant, and thermal treatment. The physicochemical nature of the surface carriers were investigated by means of N(2) -physisorption measurements and FTIR spectroscopy. The effect of the amount of drug on the release kinetics was also investigated. The drug delivery was evaluated in vitro in four different physiological solutions (that simulated the gastrointestinal tract) to analyze the behavior of the TiO(2) -based systems if they were to be formulated as oral DDSs. Our optimized approach is a good alternative to the classical methods that are used to prepare efficient TiO(2) -based drug-delivery systems.
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Affiliation(s)
- Elena Ghedini
- Department of Molecular Science and Nanosystems, University Ca' Foscari, Consortium INSTM-RU of Venice, Calle Larga Santa Marta, 2137, 30123 Venice, Italy
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Menegazzo F, Signoretto M, Frison G, Pinna F, Strukul G, Manzoli M, Boccuzzi F. When high metal dispersion has a detrimental effect: Hydrogen peroxide direct synthesis under very mild and nonexplosive conditions catalyzed by Pd supported on silica. J Catal 2012. [DOI: 10.1016/j.jcat.2012.03.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nichele V, Signoretto M, Ghedini E. β-Galactosidase entrapment in silica gel matrices for a more effective treatment of lactose intolerance. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.03.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ghedini E, Menegazzo F, Signoretto M, Manzoli M, Pinna F, Strukul G. Mesoporous silica as supports for Pd-catalyzed H2O2 direct synthesis: Effect of the textural properties of the support on the activity and selectivity. J Catal 2010. [DOI: 10.1016/j.jcat.2010.06.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Menegazzo F, Signoretto M, Manzoli M, Boccuzzi F, Cruciani G, Pinna F, Strukul G. Influence of the preparation method on the morphological and composition properties of Pd–Au/ZrO2 catalysts and their effect on the direct synthesis of hydrogen peroxide from hydrogen and oxygen. J Catal 2009. [DOI: 10.1016/j.jcat.2009.09.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Contessotto L, Ghedini E, Pinna F, Signoretto M, Cerrato G, Crocellà V. Hybrid Organic-Inorganic Silica Gel Carriers with Controlled Drug-Delivery Properties. Chemistry 2009; 15:12043-9. [PMID: 19774561 DOI: 10.1002/chem.200900603] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Laura Contessotto
- Department of Chemistry University Cà Foscari, Consortium INSTM-RU of Venice, Calle Larga Santa Marta, 2137, 30123 Venice, Italy
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Menegazzo F, Pinna F, Signoretto M, Trevisan V, Boccuzzi F, Chiorino A, Manzoli M. Highly dispersed gold on zirconia: characterization and activity in low-temperature water gas shift tests. ChemSusChem 2008; 1:320-326. [PMID: 18605097 DOI: 10.1002/cssc.200700152] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Gold-loaded zirconia and sulfated zirconia catalysts were tested in the low-temperature water gas shift reaction. The samples were characterized by N2 adsorption analysis, temperature-programmed reduction, X-ray diffraction, pulse-flow CO chemisorption, FTIR spectroscopy, and high-resolution transmission electron microscopy. A reference catalyst, Au/TiO2, provided by the World Gold Council was investigated for comparison. CO chemisorption and FTIR data indicate the presence of only highly dispersed gold clusters on the sulfated sample and both small clusters and small particles on the non-sulfated sample. Both gold-zirconia catalysts are much more active than the Au/TiO2 reference sample over all the temperature range investigated. The sample prepared on sulfated zirconia exhibits higher stability than the catalyst on unmodified zirconia. The prominent role in the water gas shift reaction of gold clusters in close contact with the support was deduced.
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Trevisan V, Signoretto M, Colonna S, Pironti V, Strukul G. Microencapsulated Chloroperoxidase as a Recyclable Catalyst for the Enantioselective Oxidation of Sulfides with Hydrogen Peroxide. Angew Chem Int Ed Engl 2004. [DOI: 10.1002/ange.200460365] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Trevisan V, Signoretto M, Colonna S, Pironti V, Strukul G. Microencapsulated Chloroperoxidase as a Recyclable Catalyst for the Enantioselective Oxidation of Sulfides with Hydrogen Peroxide. Angew Chem Int Ed Engl 2004; 43:4097-9. [PMID: 15300705 DOI: 10.1002/anie.200460365] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Valentina Trevisan
- Dipartimento di Chimica, Università di Venezia, Dorsoduro 2137, 30123 Venezia, Italy
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Melada S, Signoretto M, Somma F, Pinna F, Cerrato G, Meligrana G, Morterra C. Gas- and Liquid-Phase Reactions on Sulphated Zirconia Prepared by Precipitation. Catal Letters 2004. [DOI: 10.1023/b:catl.0000020545.04726.e2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Morterra C, Cerrato G, Ardizzone S, Bianchi CL, Signoretto M, Pinna F. Surface features and catalytic activity of sulfated zirconia catalysts from hydrothermal precursors. Phys Chem Chem Phys 2002. [DOI: 10.1039/b110444f] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Palazzi C, Oliva L, Signoretto M, Strukul G. Microporous Zirconia–Silica Mixed Oxides Made by Sol–Gel as Catalysts for the Liquid-Phase Oxidation of Olefins with Hydrogen Peroxide. J Catal 2000. [DOI: 10.1006/jcat.2000.2916] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Morterra C, Cerrato G, Bolis V, Di Ciero S, Signoretto M. On the strength of Lewis- and Bro/nsted-acid sites at the surface of sulfated zirconia catalysts. ACTA ACUST UNITED AC 1997. [DOI: 10.1039/a606608i] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pinna F, Signoretto M, Strukul G, Polizzi S, Pernicone N. Pd-SiO2 catalysts. stability of β-PdHx as a function of Pd dispersion. ACTA ACUST UNITED AC 1997. [DOI: 10.1007/bf02477683] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Signoretto M, Pinna F, Strukul G, Cerrato G, Morterra C. Platinum promoted zirconia-sulfate catalysts: one-pot preparation, physical properties and catalytic activity. Catal Letters 1996. [DOI: 10.1007/bf00807608] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Morterra C, Cerrato G, Signoretto M. On the role of the calcination step in the preparation of active (superacid) sulfated zirconia catalysts. Catal Letters 1996. [DOI: 10.1007/bf00811720] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fagherazzi G, Benedetti A, Polizzi S, Di Mario A, Pinna F, Signoretto M, Pernicone N. Structural investigation on the stoichiometry of β-PdHx in Pd/SiO2 catalysts as a function of metal dispersion. Catal Letters 1995. [DOI: 10.1007/bf00813223] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Riello P, Fagherazzi G, Canton P, Clemente D, Signoretto M. Determining the Degree of Crystallinity in Semicrystalline Materials by means of the Rietveld Analysis. J Appl Crystallogr 1995. [DOI: 10.1107/s0021889894010381] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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