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Listar por autor "Ramírez Grau, Rubén"

Mostrando ítems 1-6 de 6

Aplicación de nanoplaquetas de WO3 ordenadas como fotoánodos para la degradación del pesticida diuron usando luz visible

Ramírez Grau, Rubén (Universitat Politècnica de València, 2018-10-03)

[ES] Muchos de los contaminantes orgánicos generados como resultado de actividades industriales y agrícolas terminan llegando a acuíferos, lo que puede llegar a perjudicar severamente a los seres vivos que habitan en ellos ...
Green, HF-Free Synthesis of MXene Quantum Dots and their Photocatalytic Activity for Hydrogen Evolution

Ramírez-Grau, Rubén; Melillo, Arianna; Osella, Silvio; Asiri, Abdullah M.; García Gómez, Hermenegildo; Primo Arnau, Ana Maria (John Wiley & Sons, 2023-06)

[EN] A general methodology to prepare MXene quantum dots (MxQDs) with yields over 20% by liquid-phase laser ablation of the MAX phase is reported. Mechanical and thermal shock by 532 nm laser pulses (7 ns fwhp, 50 mJ x ...
MXene dots as photocatatlysts for CO<sub>2 </sub>hydrogenation

Ramírez-Grau, Rubén; Cabrero-Antonino, Maria; García Gómez, Hermenegildo; Primo Arnau, Ana Maria (Elsevier, 2024-02)

[EN] Four MXene dots (MDs) (Ti3C2, Ti2C, V2C and Nb2C) have been prepared by laser ablation of the corresponding MAX phases in aqueous medium and subsequent separation by double centrifugation. These MDs were characterized ...
Nanometer-thick defective graphene films decorated with oriented ruthenium nanoparticles. Higher activity of 101 vs 002 plane for silane- alcohol coupling and hydrogen transfer reduction

Anouar, Aicha; Ramírez-Grau, Rubén; Katir, Nadia; Franconetti, Antonio; El Kadib, Abdelkrim; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (Elsevier, 2022-03)

[EN] Pyrolysis of ammonium alginate films containing Ru(NH3)(6)Cl-3 leads to the formation of Ru nanoparticles (NPs) supported on defective graphene films. The procedure allows controlling the preferential facet orientation ...
Opportunities of MXenes in Heterogeneous Catalysis: V2C as Aerobic Oxidation Catalyst

Dhakshinamoorthy, Amarajothi; Ramírez-Grau, Rubén; García, Hermenegildo; Primo Arnau, Ana Maria (John Wiley & Sons, 2024-07-02)

[EN] MXenes are two-dimensional nanomaterials having alternating sheets of one atom-thick early transition metal layer and one atom-thick carbide or nitride layer. The external surface contains termination groups, whose ...
Synergistic effects of MXene support and cobalt salts in dye-sensitized photocatalytic hydrogen generation

Smirnova, Marina; Scheibe, Blazej; Ramírez-Grau, Rubén; García Gómez, Hermenegildo; Lewandowska Andralojc, Anna (Elsevier, 2024-10-28)

[EN] This study introduces an approach to photocatalytic hydrogen production through a dye-sensitized photocatalytic system employing MXene (Ti3C2Tx) and a non-noble cobalt metal catalyst. It was demonstrated that simple ...