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Listar por palabra clave "Carbocatalysis"

Mostrando ítems 1-14 de 14

3D Structured Graphenes as (Photo)Catalysts

García Mulero, Ana (Universitat Politècnica de València, 2023-03-20)

[ES] En la actualidad, el elevado consume energético y el aumento de la concentración de CO2 en la atmósfera han hecho necesaria la búsqueda de nuevas opciones para los procesos actuales. Una respuesta ha sido el aprovechamiento ...
Biopolymer-derived structured graphitic carbons as metal-free heterogeneous ozonation catalysts in water

López-Francés, Antón; Peng, Lu; Bernat-Quesada, Francisco; Ferrer, Belén; Navalón, Sergio; Amarajothi, Dhakshina Moorthy; García Gómez, Hermenegildo (Elsevier Ltd, 2024-09)

[EN] The development of metal-free heterogeneous catalysts for advanced oxidation processes is an important area of research, advancing in sustainability, with potential practical applications in water treatment. In this ...
Catalytic Ozonation Using Edge-Hydroxylated Graphite-Based Materials

Bernat-Quesada, Francisco; Espinosa-López, Juan Carlos; Barbera, Vincenzina; Alvaro Rodríguez, Maria Mercedes; Galimberti, Maurizio; Navalón Oltra, Sergio; García Gómez, Hermenegildo (American Chemical Society, 2019-10-21)

[EN] This work reports the catalytic ozonation activity of high surface area graphite materials selectively functionalized at the edges with hydroxyl groups. The graphite-based catalyst shows higher activity than the parent ...
Doped graphenes in catalysis

Albero, Josep; García Gómez, Hermenegildo (Elsevier, 2015-11)

[EN] Due to the availability and easy preparation, graphenes are currently under intense investigation for various applications in chemistry including their use as metal-free catalysts. The presence in low percentage of ...
Engineering Active Sites in Reduced Graphene Oxide: Tuning the Catalytic Activity for Aerobic Oxidation

Espinosa-López, Juan Carlos; Alvaro Rodríguez, Maria Mercedes; Dhakshinamoorthy, Amarajothi; Navalón Oltra, Sergio; García Gómez, Hermenegildo (American Chemical Society, 2019-10-07)

[EN] The influence of the graphene oxide (GO) reduction method on the activity of the resulting reduced graphene oxide (rGO) for the aerobic oxidation of benzylamine is reported. Starting from GO obtained by the Hummers ...
Estudio de la actividad catalítica de materiales basados en grafeno en reacciones de oxidación aeróbica con interés para la industria de química fina

Botí Valls, Héctor Ismael (Universitat Politècnica de València, 2018-10-16)

[ES] Tradicionalmente la industria química ha empleado sales de metales de transición como reactivos para llevar a cabo transformaciones orgánicas. Posteriormente, la catálisis ha permitido el desarrollo de procesos más ...
Estudio de la actividad catalítica de materiales basados en grafito para la activación de ozono en procesos de tratamiento de aguas residuales empleando sistemas modelo

López Francés, Antón (Universitat Politècnica de València, 2019-07-30)

[ES] Los procesos convencionales de tratamiento de aguas residuales no son eficientes para la desinfección de microorganismos resistentes y para la eliminación de contaminantes orgánicos tóxicos, recalcitrantes y poco ...
Graphene as Metal-Free Catalyst for Aqueous Phase Reforming of Ethylene Glycol

Esteve-Adell, Iván; Bakker, Nadia; Primo Arnau, Ana María; Hensen, Emiel J. M.; García Gómez, Hermenegildo (John Wiley & Sons, 2017)

[EN] Graphene obtained by pyrolysis of alginate shows in the absence of any metal, catalytic activity towards the decomposition of ethylene glycol into hydrogen and carbon dioxide at 250 8C due to the presence of ...
Graphene from Alginate Pyrolysis as a Metal-Free Catalyst for Hydrogenation of Nitro Compounds

Trandafir, Mihaela-Mirela; Florea, Mihaela; Neatu, Florentina; Primo Arnau, Ana Maria; García Gómez, Hermenegildo; Parvulescu, Vasile I. (John Wiley & Sons, 2016)

[EN] Graphene obtained by pyrolysis of alginate at 900 degrees C under inert atmosphere and exfoliation is used as a metal-free catalyst for reduction of nitro to amino groups with hydrogen as a reagent. The process is ...
Materiales a base de grafenos como foto-(electro)catalizadores para la generación de hidrógeno

Rendón Patiño, Alejandra (Universitat Politècnica de València, 2021-09-02)

[ES] En los últimos años, la química se ha convertido en una herramienta esencial en la búsqueda de soluciones al cambio climático y la escasez de recursos. En este sentido, la catálisis ha desempeñado un papel importante ...
N-Doped graphene as a metal-free catalyst for glucose oxidation to succinic acid

Rizescu, Cristina; Podolean, Iunia; Albero-Sancho, Josep; Parvulescu, Vasile I.; Coman, Simona M.; Bucur, Cristina; Puche Panadero, Marta; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2017-04-21)

[EN] N-Containing graphenes obtained either by simultaneous amination and reduction of graphene oxide or by pyrolysis of chitosan under an inert atmosphere have been found to act as catalysts for the selective wet oxidation ...
Ozone and peroxymonosulfate as oxidants in water treatments for disinfection by-products control or pollutant degradation

Bernat Quesada, Francisco (Universitat Politècnica de València, 2021-10-18)

[ES] El agua es esencial para la vida. La presente Tesis ha estudiado el uso de ozono y peroximonosulfato como oxidantes en tratamientos de agua para el control de subproductos de desinfección o degradación de contaminantes. ...
Reduced Graphene Oxides as Carbocatalysts in Acceptorless Dehydrogenation of N-Heterocycles

Mollar-Cuni, Andrés; Ventura-Espinosa, David; Martin, Santiago; García Gómez, Hermenegildo; Mata, Jose A. (American Chemical Society, 2021-12-03)

[EN] The catalytic properties of graphene-derived materials are evaluated in acceptorless dehydrogenation of N-heterocycles. Among them, reduced graphene oxides (rGOs) are active (quantitative yields in 23 h) under mild ...
Reduction of C=C Double Bonds by Hydrazine Using Active Carbons as Metal-Free Catalysts

Espinosa-López, Juan Carlos; Navalón Oltra, Sergio; Alvaro Rodríguez, Maria Mercedes; Dhakshinamoorthy, Amarajothi; García Gómez, Hermenegildo (American Chemical Society, 2018)

[EN] A series of active carbons with or without chemical oxidation by nitric acid have been prepared, and their activity was evaluated as metal-free catalysts for the C=C double bond hydrogenation using hydrazine as reducing ...