Listar por tema "graphene"
Mostrando ítems 1-13 de 13
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Chemistry in twodimensional world
Universitat Jaume I (2017-07)Ever since the discovery of graphene in 2004 (Novoselov, 2004), there has been increasing interest in 2D materials owing to their distinct electronic, photonic and mechanical properties. So far, graphene is still the ... -
Dual role of graphene as support of ligand-stabilized palladium nanoparticles and carbocatalyst for (de)hydrogenation of N-heterocycles
Elsevier (2023-02-18)The hybrid material composed of palladium nanoparticles (PdNPs) functionalized with N-heterocyclic carbene ligands (NHCs) immobilized onto the surface of reduced graphene oxide (rGO) results in an efficient catalytic ... -
Effect of Pristine Graphene on Methylammonium Lead Iodide Films and Implications on Solar Cell Performance
American Chemical Society (2021)The relatively low stability of solar cells based on hybrid halide perovskites is the main issue to be solved for the implementation in real life of these extraordinary materials. Degradation is accelerated by temperature, ... -
Enhancement of gold catalytic activity and stability by immobilization on the surface of graphene
Elsevier (2017-08)The catalytic performance of gold complexes is evaluated at the molecular level and when supported onto reduced graphene oxide (rGO). Gold complexes of general formula [(NHC)AuX] catalyse the synthesis of indoles via ... -
Gold nanoparticle-catalysed functionalization of carbon-hydrogen bonds by carbene transfer reactions
The Royal Society of Chemistry (2022-02-23)Gold nanoparticles stabilized by NHC ligands and supported onto reduced graphene oxide (rGO) catalyse the functionalization of cyclohexane and benzene C–H bonds upon insertion of carbene CHCO2Et (from N2[double bond, length ... -
High Production of Hydrogen on Demand from Silanes Catalyzed by Iridium Complexes as a Versatile Hydrogen Storage System
American Chemical Society (2018)The catalytic dehydrogenative coupling of silanes and alcohols represents a convenient process to produce hydrogen on demand. The catalyst, an iridium complex of the formula [IrCp*(Cl)(2)(NHC)] containing an N-heterocyclic ... -
Immobilization of Pyrene-Tagged Palladium and Ruthenium Complexes onto Reduced Graphene Oxide: An Efficient and Highly Recyclable Catalyst for Hydrodefluorinatio
American Chemical Society (2014-12)The co-immobilization of palladium and ruthenium complexes with pyrene-tagged Nheterocyclic carbene ligands onto reduced grahene oxide allows the formation of a highly efficient catalyst for the hydrodefluorination of a ... -
Improving Catalyst Activity in Hydrocarbon Functionalization by Remote Pyrene-Graphene Stacking
Wiley (2019)A copper complex bearing an N-heterocyclic carbene ligand with a pyrene "tail" attached to the backbone has been prepared and supported on reduced graphene oxide (rGO). The free and supported copper materials have been ... -
In situ decoration of graphene sheets with gold nanoparticles synthetized by pulsed laser ablation in liquids
(2016-07)The demand for nanocomposites of graphene and carbonaceous materials decorated with metallic nanoparticles is increasing on account of their applications in science and technology. Traditionally, the production of ... -
Low-temperature processed electron collection layers of graphene/TiO 2 nanocomposites in thin film perovskite solar cells
American Chemical Society (2014)The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications ... -
Nanosafety analysis of graphene-based polyester resin composites on a life cycle perspective
Wiley (2022)The use, production, and disposal of engineering nanomaterials (ENMs), including graphene-related materials (GRMs), raise concerns and questions about possible adverse effects on human health and the environment, considering ... -
Ruthenium molecular complexes immobilized on graphene as active catalysts for the synthesis of carboxylic acids from alcohol dehydrogenation
Royal Society of Chemistry (2016-09)Ruthenium complexes containing N-heterocyclic carbene ligands functionalized with different polyaromatic groups (pentafluorophenyl, anthracene, and pyrene) are immobilized onto the surface of reduced graphene oxide. The ... -
The non-innocent role of graphene in the formation/immobilization of ultra-small gold nanoparticles functionalized with N-heterocyclic carbene ligands
Elsevier (2019-07)Ultra-small gold nanoparticles (AuNPs) are obtained by treatment of well-defined gold complexes with reduced graphene oxide (rGO) without any auxiliary reducing agent. The AuNPs are functionalized with N-heterocyclic carbene ...