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Browsing by UPV Unit "Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química"

Now showing items 21-40 of 1505

A heterogeneous mechanism for the catalytic decomposition of hydroperoxides and oxidation of alkanes over CeO2 nanoparticles: A combined theoretical and experimental study

López Auséns, Javier Tirso; Boronat Zaragoza, Mercedes; Concepción Heydorn, Patricia; Chouzier, Sandra; Mastroianni, Sergio; Corma Canós, Avelino (Elsevier, 2016)

[EN] A nanoparticulate CeO2 catalyst is presented that is able to oxidize cyclohexane to K/A-oil (a mixture of cyclohexanone and cyclohexanol) using hydroperoxides as oxidizing species. The improvement in selectivity with ...
A highly conductive nanostructured PEDOT polymer confined into the mesoporous MIL-100(Fe)

Salcedo-Abraira, Pablo; Santiago-Portillo, Andrea; Atienzar Corvillo, Pedro Enrique; Bordet, Pierre; Salles, Fabrice; Guillou, Nathalie; Elkaim, Erik; García Gómez, Hermenegildo; Navalón Oltra, Sergio; Horcajada, Patricia (The Royal Society of Chemistry, 2019-07-14)

[EN] Despite the higher efficiency, larger color range and faster stimulus response of polymeric electrochromic materials, their poor cyclability strongly hampers their application in optoelectronics. As an original strategy ...
A Highly Selective Catalyst for Partial Hydrogenation of 1,3-Butadiene: MgO-Supported Rhodium Clusters Selectively Poisoned with CO

Yardimci, Dicle; Serna Merino, Pedro Manuel; Gates, B.C. (Wiley-VCH Verlag, 2012-10)
A highly stable and hierarchical tetrathiafulvalene-based metal organic framework with improved performance as a solid catalyst

Souto, Manuel; Santiago-Portillo, Andrea; Palomino Roca, Miguel; Vitorica-Yrezabal, Iñigo J.; Vieira, Bruno J. C.; Waerenborgh, João C.; Valencia Valencia, Susana; Navalón Oltra, Sergio; Rey Garcia, Fernando; García Gómez, Hermenegildo; Minguez Espallargas, Guillermo (The Royal Society of Chemistry, 2018-03)

[EN] Herein we report the synthesis of a tetrathiafulvalene (TTF)-based MOF, namely MUV-2, which shows a non-interpenetrated hierarchical crystal structure with mesoporous one-dimensional channels of ca. 3 nm and orthogonal ...
A Lamellar MWW Zeolite With Silicon and Niobium Oxide Pillars: A Catalyst for the Oxidation of Volatile Organic Compounds

Schwanke, Anderson Joel; Balzer, Rosana; Lopes, Christian Wittee; Meira, Debora Motta; DÍAZ MORALES, URBANO MANUEL; Corma Canós, Avelino; Pergher, Sibele (John Wiley & Sons, 2020-08-17)

[EN] In this work, an MWW-type zeolite with pillars containing silicon and niobium oxide was synthesized to obtain a hierarchical zeolite. The effect of niobium insertion in the pillaring process was determined by combining ...
A Ligand-Free Pt3 Cluster Catalyzes the Markovnikov Hydrosilylation of Alkynes with up to 106 Turnover Frequencies

Rivero-Crespo, Miguel Ángel; Leyva Perez, Antonio; Corma Canós, Avelino (John Wiley & Sons, 2017)

[EN] The Pt-catalyzed hydrosilylation of alkynes is the procedure of choice to obtain vinylsilanes, and is claimed to be the most relevant application of Pt in organic synthesis. More than half a century after its discovery, ...
A Machine Learning Approach to Zeolite Synthesis Enabled by Automatic Literature Data Extraction

Jensen, Zach; Kim, Edward; Kwon, Soonhyoung; Gani, Terry Z.H.; Román-Leshkov, Yuriy; Moliner Marin, Manuel; Corma Canós, Avelino; Olivetti, Elsa (American Chemical Society, 2019-05-22)

[EN] Zeolites are porous, aluminosilicate materials with many industrial and "green" applications. Despite their industrial relevance, many aspects of zeolite synthesis remain poorly understood requiring costly trial and ...
A mechanistic study on photocatalysis by thiapyrylium salts. Photodegradationof dimethoate, alachlor and pyrimethanil under simulated sunlight

Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (Elsevier, 2012-07-23)

Photodegradation of dimethoate, alachlor, and pyrimethanil using a thiapyrilium salt (TPTP+) as photocatalyst was performed under simulated sunlight. The photocatalyst removes preferentially pyrimethanil (45% after 60 min ...
A mechanistic study on the oxidative photodegradation of 2,6-dichlorodiphenylamine-derived drugs: Photo-Fenton versus photocatalysis with a triphenylpyrylium salt

Miró Richart, Paula; Arques Sanz, Antonio; Amat Payá, Ana María; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (Elsevier, 2013-08)

Emerging pollutants, such as drugs, are considered a potential hazard to the environment, and therefore advanced oxidation processes are being considered candidate tools for their elimination. Here, different oxidation ...
A Multi-Nuclear MAS-NMR Study on the Structural Properties of Silicalite-1 Zeolite Synthesized Using N- and P-Based Organic Structure Directing Agents

Martinez-Ortigosa, Joaquin; Simancas, Jorge; Vidal Moya, José Alejandro; Rey Garcia, Fernando; Valencia Valencia, Susana; Blasco Lanzuela, Teresa (MDPI AG, 2021-08)

[EN] The nature of organic structure directing agents (OSDAs) is of paramount importance in the final properties of zeolites, particularly the framework and porosity. Recently, the use of P-containing OSDAs has been employed ...
A New Aluminosilicate Molecular Sieve with a System of Pores between Those of ZSM-5 and Beta Zeolite

Moliner Marin, Manuel; Gonzalez, Jorge; Portilla Ovejero, Mª Teresa; Willhammar, Tom; Rey Garcia, Fernando; Llopis Alonso, Francisco Javier; Zou, Xiaodong; Corma Canós, Avelino (American Chemical Society, 2011-06)

[EN] A new aluminosilicate zeolite (ITQ-39) has been synthesized. This is an extensively faulted structure with very small domains that makes the structure elucidation very difficult. However, a combination of adsorption ...
A new mechanism for internal nucleophilic substitution reactions

Aurell, Maria J.; González-Cardenete, Miguel A.; Zaragoza, Ramon J. (The Royal Society of Chemistry, 2018)

[EN] A new mechanism for the classic internal nucleophilic substitution reactions SNi by means of computational studies in the gas-phase, DCM and acetonitrile is reported. Despite the importance of the SNi mechanism, since ...
A new metal exchanged zeolite for a present environmental problem. An in-situ XAS study

Alonso Escobar, Cristina; Franch Martí, Cristina; Palomares Gimeno, Antonio Eduardo; Rey Garcia, Fernando; Guilera, Gemma (IOP Publishing, 2013)

The medium pore zeolite, TNU-9, is prepared and studied for the selective catalytic reduction (SCR) of NO using C3H8 as the reducing agent. The catalytic activity of TNU-9 zeolites for the SCR is comparable to other known ...
A new microporous zeolitic silicoborate (ITQ-52) with interconnected small and medium pores

Simancas Coloma, Raquel; Jorda Moret, Jose Luis; Rey Garcia, Fernando; Corma Canós, Avelino; Cantin Sanz, Angel; Peral, Inmaculada; Popescu, Catalin (American Chemical Society, 2014-03-05)

A new zeolite (named as ITQ-52) having large cavities and small and medium channels has been synthesized. This was achieved by using a new family of amino-phosphonium cations as organic structure directing agents (OSDA). ...
A new molecular pathway allows the chemoselective reduction of nitroaromatics on non-noble metal catalysts

Millán-Cabrera, Reisel; Liu, Lichen; Boronat Zaragoza, Mercedes; Corma Canós, Avelino (Elsevier, 2018-08)

[EN] At difference with noble metals, the oxophylic character of non-noble metals strongly facilitates the rupture of the N-O bonds in nitrobenzene, yielding nitrosobenzene as primary reaction intermediate. By combining ...
A new photochemical based route for the preparation of organic structure directing agents useful for zeolite synthesis

Cantin Sanz, Angel; Leiva Herrero, Sandra; Jorda Moret, Jose Luis; Valencia Valencia, Susana; Rey Garcia, Fernando; Corma Canós, Avelino (Elsevier, 2007)

[EN] A new photochemically induced [2+2] cycloaddition route for the synthesis of amines has been successfully applied for the preparation of a series of organic structure directing agents (OSDA's) that has been found to ...
A New Synthesis Route of the Tridirectional 12 Ring Channel Zeolite ITQ-7

Cantin Sanz, Angel; Corma Canós, Avelino; Díaz Cabañas, Mª José; Rey Garcia, Fernando; Sastre Navarro, German Ignacio (Elsevier, 2004)

[EN] A new synthesis procedure for the synthesis of ITQ-7 zeolites is reported that has been afforded by combining theoretical and experimental approaches. This new synthesis method is specially relevant since the earlier ...
A novel synthetic approach to tyrosine dimers based on pterin photosensitization

Reid, Lara O.; Castaño, Carolina; Dantola, M L.; Lhiaubet ., Virginie Lyria; Miranda Alonso, Miguel Ángel; Marín García, Mª Luisa; Thomas, A. H. (Elsevier, 2017)

[EN] Oxidative damage to proteins leads to a variety of modifications that are markers of pathogenesis. One of the most important modifications is the dityrosine (Tyr(2)) cross-link, resulting from an oxidative covalent ...
A Novel Synthetic Route to Prepare High Surface Area Mayenite Catalyst for TCE Oxidation

Intiso, Adriano; Martínez-Triguero, Joaquín; Cucciniello, Raffaele; Proto, Antonio; Palomares Gimeno, Antonio Eduardo; Rossi, Federico (MDPI AG, 2019-01-01)

[EN] Mayenite (Ca12Al14O33) was synthesized by a novel route based on the use of polymethyl methacrylate (PMMA) as a soft templating agent. The material was tested for the total oxidation of trichloroethylene in the gas ...
A photophysical approach to investigate the photooxidation mechanism of pesticides: Hydroxyl radical versus electron transfer

Marín García, Mª Luisa; Lhiaubet, Virginie Lyria; Santos-Juanes Jordá, Lucas; Soler Escoda, Juan Miguel; Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Miranda Alonso, Miguel Ángel (Elsevier, 2011-03-14)

[EN] The role of hydroxyl radical in different solar photocatalytic processes, namely photo-Fenton, titanium dioxide-based oxidation and organic photocatalysis (triphenylpyrylium) has been investigated. Using a methodology ...