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Mostrando ítems 661-670 de 682
Artículo
LPdCl2(amine) Complexes Supported by Terphenyl Phosphanes: Applications in Aryl Amination Reactions
(Royal Society of Chemistry, 2022)
Despite the excellent catalytic properties display by NHC-Pd-PEPPSI complexes in cross-coupling, phosphane analogs have been barely screened. In this work, we report the synthesis and characterization of a series of ...
Artículo
Impact of Topology Framework of Microporous Solids on Methanol Carbonylation: An Operando DRIFTS-MS Study
(Elsevier, 2023)
Methanol carbonylation was evaluated over heterogeneous catalysts based on Cu-exchanged zeolitic materials with different topology: Cu@MOR, Cu@FER, and Cu@ZSM-5. Despite the similar Si/Al ratios, it is crucial to acknowledge ...
Artículo
The Need for Flexible Chemical Synthesis and How Dual-Function Materials Can Pave the Way
(American Chemical Society, 2023)
Since climate change keeps escalating, it is imperative that the increasing CO2 emissions be combated. Over recent years, research efforts have been aiming for the design and optimization of materials for CO2 capture and ...
Artículo
Tetracopper σ-Bound μ-Acetylide and -Diyne Units Stabilized by a Naphthyridine-based Dinucleating Ligand
(Wiley-Blackwell, 2023)
Reactions of a dicopper(I) tert-butoxide complex with alkynes possessing boryl or silyl capping groups resulted in formation of unprecedented tetracopper(I) μ-acetylide/diyne complexes that were characterized by NMR and ...
Artículo
Steric and Electronic Effects Responsible for N, O- or N, N-Chelating Coordination of Pyrazolones Containing a Pyridine Ring in Ruthenium Arene Systems
(American Chemical Society, 2023)
Structural and electronic factors are crucial to rationalize the different N,O or N,N chelating coordination of pyrazolones containing a pyridine ring. The reactivity of proligand 3-phenyl-1-(pyridin-2-yl)-5-pyrazolone ...
Tesis Doctoral
Agentes de contraste basados en lantánidos para la obtención de bioimágenes mediante técnicas de resonancia magnética a alto campo y en modo dual T1-T2
(2024-03-07)
Magnetic Resonance Imaging (MRI) allows the visualization of organs and tissues for medical diagnosis. This technique is non-invasive, does not require the use of radioactive agents or high-energy electromagnetic waves, ...
Artículo
Electrocatalytic CO2 Reduction with a Binuclear Bis-Terpyridine Pyrazole-Bridged Cobalt Complex
(Wiley-VCH GmbH, 2023)
A pyrazole-based ligand substituted with terpyridine groups at the 3 and 5 positions has been synthesized to form the dinuclear cobalt complex 1, that electrocatalytically reduces carbon dioxide (CO2) to carbon monoxide ...
Artículo
Engineering Exsolved Catalysts for CO2 Conversion
(Frontiers Media SA, 2023)
Introduction: Innovating technologies to efficiently reduce carbon dioxide (CO2) emission or covert it into useful products has never been more crucial in light of the urgent need to transition to a net-zero economy by ...
Artículo
Hydrothermal Synthesis and Characterization of Cu-MnOx Catalysts for CO Oxidation: Effect of Cu:Mn Molar Ratio on their Structure and Catalytic Activity
(Elsevier, 2023)
A comprehensive study was conducted on the synthesis of Cu-MnOx catalysts using a one-pot hydrothermal method followed by a calcination step. These catalysts were thoroughly characterized using techniques such as X-ray ...
Artículo
Cobalt Stabilization through Mesopore Confinement on TiO2 Support for Fischer−Tropsch Reaction
(American Chemical Society, 2023)
Cobalt supported on mesostructured TiO2 catalysts has been prepared by a wet-impregnation method. The Co/TiO2 catalytic system showed better catalytic performance after support calcination at 380 °C. Co nanoparticles ...