Process intensification by using well-defined solid catalysts
able to perform one-pot multistep reactions is one of the open
fronts in heterogeneous catalysis. This is even more relevant if
new, more efficient synthesis ...
Bobadilla, Luis F; Blasco Lanzuela, Teresa; Odriozola, José Antonio(Royal Society of Chemistry, 2013)
[EN] Two alkoxysilyl-modified ionic liquids (ILs) have been synthesized and further grafted onto mesoporous silica, MCM-41; these ionic liquids were used for dispersing AuCl3 catalysts that activate C-H bonds as required ...
[EN] A series of gold complexes were tested as catalysts in the synthesis of propargylamines by the three component coupling reaction of amines, aldehydes, and alkynes. These complexes are efficient catalysts for the ...
Rodríguez Fortuño, Francisco José; Martínez Marco, Mª Luz; Tomás Navarro, Begoña; Ortuño Molinero, Rubén; Martí Sendra, Javier; Martínez Abietar, Alejandro José; Rodríguez Cantó, Pedro Javier(American Institute of Physics, 2011)
In this work, we report the design, fabrication, and characterization of gold nanocrosses for chemosensing purposes. The nanocrosses are designed to exhibit a localized surface plasmon resonance which is very sensitive to ...
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 ...
Alfonso Muñoz, Mireia; Ferragut Adam, Xavier; Guerola Blay, Vicente; Roig Picazo, M. Pilar(Instituto Universitario de Restauración del Patrimonio de la UPV, 2008)
El objetivo de este artículo es mostrar las posibles soluciones de intervención sobre diferentes problemáticas en las ornamentaciones doradas de grandes conjuntos monumentales.
A partir de la intervención del espacio ...
[EN] In this work it is shown that iron(III) and gold(I) triflimide efficiently catalyze the hydroaddition of a wide array of nucleophiles including water, alcohols, thiols, amines, alkynes, and alkenes to multiple CC ...
Hernández-Montoto, Andy; Llopis-Lorente, Antoni; Gorbe, Mónica; Terrés-Haro, José Manuel; Cao Milán, Roberto; Díaz de Greñu-Puertas, Borja; Alfonso-Navarro, María; Ibáñez Civera, Francisco Javier; Marcos Martínez, María Dolores; Orzaez, Mar; Villalonga, R.; Martínez-Máñez, Ramón; Sancenón Galarza, Félix(John Wiley & Sons, 2019-05-27)
[EN] Janus gold nanostar-mesoporous silica nanoparticle (AuNSt-MSNP) nanodevices able to release an entrapped payload upon irradiation with near infrared (NIR) light were prepared and characterized. The AuNSt surface was ...
Torres Del Alcazar, David Francisco(Editorial Universitat Politècnica de València, 2022-03-04)
[EN] The embroidery tradition in Lorca dates back to the 16th century and underwent an
extraordinary development at the beginning of the 20th century with the so-called golden age. Since
then, embroidery has become a ...
[EN] One-pot deposition of Au onto TiO2 has been achieved through directly contacting gold (III) salt with nanosized functionalized TiO2 support initially obtained by sol-gel process using titanium isopropoxide and citric ...
Boronat Zaragoza, Mercedes; Laursen, Siris Odin; Leyva Perez, Antonio; Oliver Meseguer, Judit; Cómbita Merchán, Diego Fernando; Corma Canós, Avelino(Elsevier, 2014-06)
The mechanism of alkyne homocoupling over gold nanoparticles and clusters, isolated and supported on
CeO2, has been theoretically investigated by means of periodic DFT calculations. The theoretical study
indicates that ...
Serra, Marco; Albero Sancho, Josep; García Gómez, Hermenegildo(Wiley, 2015-06-22)
An investigation of hydrogen production with a series of Au/TiO2 photocatalysts reveals that the Au nanoparticles play different roles depending on the wavelength of the light irradiation. Under visible-light irradiation, ...
[EN] Tremorine and precursors of gemini surfactants were synthesised in a one-pot, three-step, double-catalytic A3 coupling reaction and characterised by structural and spectroscopic methods. The cationic [Au-I(L1)]SbF6 ...
Leal Leal, Sara(Universitat Politècnica de València, 2022-07-13)
[ES] En la cultura japonesa creen que cuando algo ha sufrido un daño se vuelve mucho más hermoso, y así lo visibilizan con la técnica Kintsugi. Esta técnica centenaria consiste en reparar con resina y oro molido objetos ...
[EN] Relativistic effects in the valence shell of the elements reach a
maximum in the triad Pt¿Au¿Hg and determine their catalytic activity
in organic reactions. In this Review we examine the catalytic activity of
Pt, ...
Navalón Oltra, Sergio; Martín González, Roberto; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo(Wiley-VCH Verlag, 2011-05-23)
Gold nanoparticles supported on Fenton-treated diamond nanoparticles (Au/DNPs) have been reported as one of the most efficient solid catalysts effecting the Fenton reaction, achieving a turnover number (TON) as high as 321 ...
Galet, A.; Niel, V.; Muñoz Roca, María Del Carmen; Real, J. A.(American Chemical Society, 2003-11-26)
[EN] Self-assembly of [Ag(CN)2]-, 3-cyanopyridine, and iron(II) gives triple interpenetration of three-dimensional spin crossover (SCO) networks with the NbO topology, which interact each other via argentophilic interactions. ...
[EN] The cationic complex [(JohnPhos-Au)(3)(acetylide)][SbF6] (JohnPhos=(2-biphenyl)di-tert-butylphosphine, L1) has been characterised structurally and features an acetylide-trigold(I)-JohnPhos system; the trinuclear-acetylide ...
Juan Alcañiz, Jana; Ferrando-Soria, Jesus; Luz Mínguez, Ignacio; Serra-Crespo, Pablo; Skupien, Emmanuel; Santos, Vera P.; Pardo, Emilio; Llabrés i Xamena, Francesc Xavier; Kapteijn, Freek; Gascon, Jorge(Elsevier, 2013-11)
A new consecutive post-functionalization method has been developed for the inclusion of additional metal functionalities in Metal Organic Frameworks (MOFs) through oxamate as chelating agent. This may result in catalytic ...
Efficient catalysts for the synthesis of functionalized anilines from the corresponding substituted nitroaromatics should combine an excellent chemoselectivity with a high hydrogenation activity. Attempts to increase the ...