[EN] The direct preparation of different iron-containing Beta and CHA zeolites has been attempted under diverse synthesis conditions, including in alkaline and fluoride media, to evaluate the influence of their physicochemical ...
DHAKSHINAMOORTHY, AMARAJOTHI; Asiri, Abdullah; García Gómez, Hermenegildo(American Chemical Society, 2019-02-01)
[EN] Cross-coupling reactions catalyzed by transition metals are currently among the most widely used transformations in organic synthesis. In most of these reactions, the coupling involves the reaction of two complementary ...
López Auséns, Javier Tirso(Universitat Politècnica de València, 2018-12-12)
This dissertation focuses on the assessment and development of heterogeneous catalysts for the deperoxidation of cyclohexyl hydroperoxide and oxidation of cyclohexane, which will be based in metal oxides and gold nanoparticles. ...
Santiago-Portillo, Andrea; Navalón Oltra, Sergio; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Elsevier, 2018-09)
[EN] The catalytic activity for the aerobic epoxidation of cyclooctene of UiO-66 has been introduced by post synthetic ion exchange of Zr4+ by Ti4+ at the nodes and the performance optimized by nitro substitution in the ...
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 ...
Candu, Natalia; Simion, Andrada; Coman, Simona M.; Primo Arnau, Ana Maria; Esteve-Adell, Iván; Parvulescu, Vasile I.; García Gómez, Hermenegildo(Springer-Verlag, 2018)
[EN] Few-layered graphene-supported 1.1.1 and 2.0.0 oriented Au and Cu2O nanoplatelets were prepared by one-step pyrolysis of the corresponding metal salts embedded in chitosan at 900 degrees C under inert atmosphere. These ...
[EN] Graphene oxide obtained through the standard Hummers oxidation
of graphite and subsequent exfoliation promotes acetalization
of aldehydes in methanol. It is a highly efficient reusable
heterogeneous catalyst because ...
Espinosa, Juan Carlos; Navalón Oltra, Sergio; Primo Arnau, Ana María; Moral, Mónica; Fernandez Sanz, Javier; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Wiley, 2015)
[EN] Reduced graphene oxide exhibits high activity as Fenton catalyst with HO. radical generation efficiency over 82 % and turnover nos. of 4540 and 15023 for phenol degrdn. and H2O2 consumption, resp. These values compare ...
Arango-Daza, Juan Camilo; Lluna-Galán, Carles; Izquierdo-Aranda, Luis; Cabrero Antonino, Jose Ramón; Adam, Rosa(American Chemical Society, 2022-05-26)
[EN] A heterogeneously catalyzed protocol for the acceptorless dehydrogenative condensation between N,N'-disubstituted ureas and 1,2-diols to afford imidazolones was developed. Palladium nanoaggregates stabilized onto an ...
Finding the culprits: In situ NMR spectroscopy combined with theoretical calculations show the formation of acetyl species covalently bound to framework oxygen atoms in acid zeolites. These species, and not the usually ...
Espinosa-López, Juan Carlos; Castro Contreras, Rubén; Navalón Oltra, Sergio; Rivera-Cárcamo, Camila; Alvaro Rodríguez, Maria Mercedes; Machado, Bruno F.; Serp, Philippe; García Gómez, Hermenegildo(John Wiley & Sons, 2019-04-16)
[EN] Three palladium catalysts at similar loadings supported on few-layers graphene (FLG), carbon nanotubes (CNT) and carbon nanofibers (CNF) have been prepared by wet impregnation of palladium nitrate with the purpose of ...
Blandez, Juan F.; Santiago-Portillo, Andrea; Navalón Oltra, Sergio; Gimenez Marques, Monica; Alvaro Rodríguez, Maria Mercedes; Horcajada, Patricia; García Gómez, Hermenegildo(Elsevier, 2016-12-15)
[EN] A series of five isostructural zirconium terephthalate UiO-66 metal organic frameworks bearing different functional groups on the terephthalate linker (UiO-66-X; X = H, NH2, NO2, Br, Cl,) have been successfully prepared ...
[EN] A series of W-V-O catalysts with different m-WO3 and h-WO3 phase contents were hydrothermally synthesized by employing different tungsten, vanadium, and ammonium precursors and characterized by powder XRD, N-2 adsorption, ...
Santiago-Portillo, Andrea; Navalón Oltra, Sergio; Concepción Heydorn, Patricia; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(John Wiley & Sons, 2017)
[EN] Six isostructural MIL¿101(Cr)¿X (X: H, NO2, SO3H, Cl, CH3, and NH2) materials have been prepared directly by the reaction of CrIII salts and the corresponding terephthalic acid or by postsynthetic treatments of preformed ...
Martín González, Roberto; Navalón Oltra, Sergio; Delgado, Juan José; Calvino, José J.; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Wiley-VCH Verlag, 2011-08-16)
The catalytic activity of diamond-supported gold nanoparticle (Au/D) samples prepared by the deposition/precipitation method have been correlated as a function of the pH and the reduction treatment. It was found that the ...
Cored Bandrés, Jorge(Universitat Politècnica de València, 2023-03-30)
[ES] El cambio climático es una de las amenazas de nuestro tiempo. Los gases de efecto invernadero, como el CO2, son los principales causantes de este fenómeno, siendo necesario disminuir urgentemente sus emisiones. En ...
Rivero-Crespo, Miguel Ángel; Tejeda-Serrano, Maria; Perez-Sánchez, Horacio; Cerón-Carrasco, José Pedro; Leyva Perez, Antonio(John Wiley & Sons, 2020-03-02)
[EN] The carbonyl-olefin metathesis reaction has experienced significant advances in the last seven years with new catalysts and reaction protocols. However, most of these procedures involve soluble catalysts for intramolecular ...
Espinosa-López, Juan Carlos; Catalá, Cristina; Navalón Oltra, Sergio; Ferrer Ribera, Rosa Belén; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Elsevier, 2018)
[EN] Iron oxide nanoparticles (Fe-ox NPs) have been supported on the hydroxylated surface of modified diamond nanoparticles (D3). Characterization data show that, once formed, Fe NPs are spontaneously oxidized under ambient ...
[EN] The preparation of the iron-containing SSZ-39 zeolite is described for the first time through two different synthesis methods: post-synthetic cation exchange and one-pot synthesis. The nature and stability of the iron ...
Sanz Navarro, Sergio(Universitat Politècnica de València, 2023-09-01)
[ES] En la presente tesis doctoral se ha llevado a cabo el estudio de la reacción de isomerización de alquenos terminales catalizada por rutenio.
En primer lugar, se investigó la reacción de isomerización de alquenos ...