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Listar por palabra clave "Green chemistry"

Mostrando ítems 1-20 de 22

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Activity of ceria and ceria-supported gold nanoparticles for the carbamoylation of aliphatic amines by dimethyl carbonate

Juárez Marín, Raquel; Corma Canós, Avelino; García Gómez, Hermenegildo (International Union of Pure and Applied Chemistry, 2011-09-19)

Aliphatic amines react sluggishly with dimethyl carbonate (DMC) to give a mixture of N-methylation and carbamoylation. Nanoparticulated ceria as catalyst increases, in general, conversion and selectivity toward carbamoylation. ...
Atmospheric-pressure, liquid-phase, selective aerobic oxidation of alkanes catalysed by metal-organic frameworks

Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2011-04-14)

[EN] Aerobic oxidation of cyclooctane to its corresponding ol/one mixture at atmospheric pressure and in the liquid phase is efficiently promoted by an Fe(BTC) (BTC=1,3,5-benzenetricarboxylate) metal-organic framework, ...
Batch Stille Coupling with Insoluble and Recyclable Stannylated Polynorbornenes

Martínez-Arranz, Sheila; Carrera, Nora; Albéniz, Ana C.; Espinet, Pablo; Vidal Moya, José Alejandro (Wiley-VCH Verlag, 2012-12)

[EN] The Stille coupling can be carried out in a batch process using insoluble tin supports. The new type of support consists of stannylated polymers based on the vinylic polynorbornene skeleton that allow one to use a ...
Carbon footprint of geopolymeric mortar: Study of the contribution of the alkaline activating solution and assessment of an alternative route

Mellado Romero, Ana María; Catalan, C; Bouzón, N.; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Paya Bernabeu, Jorge Juan (Royal Society of Chemistry, 2014)

[EN] CO2 emissions associated with geopolymeric mortar prepared using spent fluid catalytic cracking catalyst (FCC) were compared to those calculated for plain ordinary Portland cement (OPC) mortar. Commercial waterglass ...
Catalytic Processes for Biomass-Derived Platform Molecules Valorisation

Ventura, Maria; Marinas, Alberto; Domine, Marcelo Eduardo (Springer-Verlag, 2020-09)

[EN] Nowadays, biomass is an interesting raw material for chemical industry, and the valorisation of its derivatives becomes in a sustainable alternative against to the depletion of fossil sources necessary for the production ...
Direct synthesis of a titanosilicate molecular sieve containing large and medium pores in its structure

Moliner Marin, Manuel; Corma Canós, Avelino (Elsevier, 2012)

[EN] The direct synthesis of the titanosilicate form of ITQ-39 is reported. This is the first description of the direct preparation of a titanosilicate molecular sieve containing large and medium pores in the same structure. ...
First-principles design of highly active and selective catalysts for phosgene-free synthesis of aromatic polyurethanes

Laursen ., Siris Odin; Cómbita Merchán, Diego Fernando; Hungría, Ana B.; Boronat Zaragoza, Mercedes; Corma Canós, Avelino (Wiley-VCH Verlag, 2012)
Highly effective activation of aryl chlorides for Suzuki coupling in aqueous media using a ferrocene-based Pd(II) diimine catalyst

Hanhan, Emre Murat; Martínez Mañez, Ramón; Ros-Lis, José Vicente (Elsevier, 2012-05-09)

The Suzuki coupling of aryl chlorides with boronic acids using a ferrocene-containing Pd(II)-diimine complex as catalyst, in aqueous media, under microwave heating is reported. A small amount of the catalyst (0.1%) was ...
Implementación de los ODS en las Asignaturas de Laboratorio de Química Orgánica en el Grado de Química de la UV

Sanz Marco, Amparo; Vila Descals, Carlos; Montesinos Magraner, Marc; Monleón Ventura, Alicia; Blay Llinares, Gonzalo; Cardona Prosper, Luz; Fernández Picot, Isabel; Pedro Llinares, José (Editorial Universitat Politècnica de València, 2022-10-28)

[EN] The importance of the Sustainable Development Goals (SDGs) and their necessary implementation in the University environment drives us to develop innovative projects for the dissemination and implementation of the ...
Ketone Formation from Carboxylic Acids by Ketonic Decarboxylation: The Exceptional Case of the Tertiary Carboxylic Acids

Oliver-Tomás, Borja; Renz, Michael; Corma Canós, Avelino (John Wiley & Sons, 2017-09-18)

[EN] For the reaction mechanism of the ketonic decarboxylation of two carboxylic acids, a -keto acid is favored as key intermediate in many experimental and theoretical studies. Hydrogen atoms in the -position are an ...
Metal organic frameworks as catalysts in solvent-free or ionic liquid assisted conditions

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2018-01-07)

[EN] Metal organic frameworks (MOFs) are being intensively studied as solid catalysts for organic reactions in liquid media. This review focuses on those reports in which these materials have been used as catalysts in the ...
Metal organic frameworks as solid catalysts in condensation reactions of carbonyl groups

Dhakshinamoorthy, Amarajothi; Opanasenko, Maksym; Cejka, Jirí; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2013-02-11)

[EN] This review summarizes the use of metal organic frameworks (MOFs) as solid catalysts for condensation reactions. After an introductory section, in which condensation reactions are generally presented, a list of the ...
RuCl3 supported on N-doped graphene as reusable catalyst for one-step glucose oxidation to succinic acid

Rizescu, Cristina; Podolean, Iunia; Cojocaru, Bogdan; Parvulescu, Vasile I.; Coman, Simona M.; Albero-Sancho, Josep; García Gómez, Hermenegildo (John Wiley & Sons, 2017)

[EN] Impregnation of RuCl3 on N-doped graphenes results in the formation of well-dispersed, small ruthenium oxyhydroxide nanoparticles supported on N-doped graphene that may exhibit high selectivity (87%) for the conversion ...
Selective Oxidation of Methane into Methanol using Sub-Nanometre Copper Clusters: A Computational Study

Gallego Rodríguez, Mario (Universitat Politècnica de València, 2024-09-02)

[ES] Se investigó la reacción de metano a metanol (MTM) en zeolitas y zeotipos utilizando clústeres subnanométricos de cobre soportados usando como oxidante O2 y sin la intervención de moléculas de agua en todo momento. Para ...
Síntesis de catalizadores sólidos orgánicos e híbridos orgánicos-inorgánicos y su aplicación

Villoria del Álamo, Beatriz (Universitat Politècnica de València, 2021-02-22)

[ES] En este trabajo de tesis doctoral, la investigación se ha centrado en el desarrollo de diferentes procesos catalíticos heterogéneos empleando materiales híbridos orgánico-inorgánicos porosos (MOFs y sílices funcionalizadas) ...
Stannylated Polynorbornenes as New Reagents for a Clean Stille Reaction

Carrera, Nora; Gutierrez, Enrique; Benavente Martínez, Rut; Villavieja, M. Mar; Albeniz, Ana C.; Espinet, Pablo (Wiley, 2008-09-24)

[EN] New functionalized polynorbornenes have been obtained in good yields by vinylic copolymerization of norbornene with a (norbornenyl)Sn-Bu(2)Cl monomer, catalyzed by [Ni(C(6)F(5))(2)(SbPh(3))(2)]. Subsequent functionalization ...
Superior performance of metal-organic frameworks over zeolites as solid acid catalysts in the prins reaction: Green synthesis of nopol

Opanasenko, Maksym; Dhakshinamoorthy, Amarajothi; Hwang, Young Kyu; Chang, Jong-San; García Gómez, Hermenegildo; Cejka, Jiri (Wiley-VCH Verlag, 2013-05)

[EN] The catalytic performance of a set of metal-organic frameworks [CuBTC, FeBTC, MIL-100(Fe), MIL-100(Cr), ZIF-8, MIL-53(Al)] was investigated in the Prins condensation of b-pinene with formaldehyde and compared with the ...
Synthesis of expanded titanosilicate MWW-related materials from a pure silica precursor

Moliner Marin, Manuel; Corma Canós, Avelino (American Chemical Society, 2012-10-30)

Titanosilicate forms of expanded MWW-related material are synthesized starting from a pure silica precursor, ITQ-1. This procedure improves the current synthetic route of the expanded titanosilicate MWW material (Ti-YNU-1), ...
Teaching chemistry with sustainability

Rojas-Fernández, Antonia G.; Aguilar-Santelises, Leonor; Cruz Millán, Margarita; Aguilar-Santelises, Miguel; García -del Valle, Araceli (Universitat Politècnica de València, 2017-04-10)

[EN] Increased awareness on a critical association between the natural environment and human development gave rise multiple projects, aiming to protect the natural environment and to preserve it for future generations. ...
The essential of essential oils in the preservation of paintings on canvas, and risks of falling into the attractiveness of their essentiality

Martín Rey, Susana; Castell Agustí, María; Vivancos Ramón, María Victoria; Martín Martínez, J. Miguel (Atena Editora, 2023)

[EN] The awareness of toxicological risk issues as a search for a substantial improvement in the quality of life, has progressively allowed the development of lines of research in Conservation and Restoration of Cultural ...