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Browsing by Author "Asiri, Abdullah M."

Now showing items 1-18 of 18

Catalysis by metal organic frameworks in water

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; García Gómez, Hermenegildo (Royal Society of Chemistry, 2014)

[EN] Metal–organic frameworks (MOFs) having a large surface area and porosity as well as a high density of transition metals are increasingly used as heterogeneous catalysts for organic reactions. However, one of the main ...
Catalytic stereoselective addition to alkynes. Borylation or silylation promoted by magnesia-supported iron oxide and cis-diboronation or silaboration by supported platinum nanoparticles

Khan, Anish; Asiri, Abdullah M.; Kosa, Samia A.; García Gómez, Hermenegildo; Grirrane, Abdessamad (Elsevier, 2015-09)

Iron oxide nanoparticles supported on magnesia (FeO/MgO) have been prepared by NaBH4 reduction of Fe(SO4) on MgO and spontaneous reoxidation upon storage. XPS of FeO/MgO indicates the presence of Fe(0) (16%) and Fe(II) ...
Ceria nanoparticles with rhodamine B as a powerful theranostic agent against intracellular oxidative stress

Apostolova, Nadezda; Rovira-Llopis, Susana; Baldovi, Herme G.; Navalón Oltra, Sergio; Asiri, Abdullah M.; Victor, Victor M.; García Gómez, Hermenegildo; Herance Camacho, Jose Raul (Royal Society of Chemistry, 2015)

Ceria nanoparticles with rhodamine B groups covalently attached on their surface (RhB-CeNPs) were successfully prepared to simultaneously exhibit antioxidant activity and the ability to detect oxidant species. In order to ...
Chitosan-Templated Synthesis of Few-Layers Boron Nitride and its Unforeseen Activity as a Fenton Catalyst

Primo Arnau, Ana María; Navalón Oltra, Sergio; Asiri, Abdullah M; García Gómez, Hermenegildo (Wiley, 2015-01-02)

A novel procedure for the preparation of fewlayers boron nitride (BN), either as films or as suspended BN platelets, is presented, based on the pyrolysis of chitosan, which serves both as a matrix to embed ammonium borate ...
Copper Nanoparticles Supported on Doped Graphenes as Catalyst for the Dehydrogenative Coupling of Silanes and Alcohols

Blandez Barradas, Juan Francisco; Primo Arnau, Ana María; Asiri, Abdullah; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Wiley-VCH Verlag, 2014-11-10)

[EN] Copper nanoparticles (NPs) supported on a series of undoped and doped graphene materials (Gs) have been obtained by pyrolysis of alginate or chitosan biopolymers, modified or not with boric acid, containing Cu2+ ...
Cu-3(BTC)(2) as heterogeneous catalyst for the room temperature oxidative hydroxylation of arylboronic acids

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; García Gómez, Hermenegildo (Elsevier, 2016-06-02)

[EN] A well known copper based-metal organic framework (MOF), namely Cu-3(BTC)(2), is a suitable heterogeneous catalyst to promote the oxidative room-temperature hydroxylation of arylboronic acids to the corresponding ...
Defective graphene as a metal-free catalyst for chemoselective olefin hydrogenation by hydrazine

Dhakshinamoorthy, Amarajothi; He, Jinbao; Franconetti, Antonio; Asiri, Abdullah M.; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2018-03-21)

[EN] A series of defective graphenes containing or not containing N, B, S and other heteroatoms exhibited general activity as metal-free catalysts for the hydrogenation of C=C double bonds by hydrazine in the presence of ...
Formation of C-C and C-Heteroatom Bonds by C-H Activation by Metal Organic Frameworks as Catalysts or Supports

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 ...
Generation of MoS2 quantum dots by laser ablation of MoS2 particles in suspension and their photocatalytic activity for H-2 generation

Garcia-Baldovi, Hermenegildo; Latorre Sánchez, Marcos; Esteve-Adell, Iván; Kham, Anish; Asiri, Abdullah M.; Kosa, Samia A.; García Gómez, Hermenegildo (Springer-Verlag, 2016)

[EN] MoS2 quantum dots (QDs) have been obtained in colloidal suspensions by 532 nm laser ablation (7 ns fwhp/pulse, 50 mJ/pulse) of commercial MoS2 particles in acetonitrile. High-resolution transmission electron microscopy ...
Influence of the composition of hybrid perovskites on their performance in solar cells

Albero-Sancho, Josep; Asiri, Abdullah M.; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2016)

[EN] During the last 5 years, power conversion efficiencies of hybrid (organic-inorganic) halide perovskite solar cells have shown impressive advances. This success has been partly due to the advances in thin film deposition ...
Metal organic frameworks as catalysts in solvent-free or ionic liquid assisted conditions

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2018-01-07)

[EN] Metal organic frameworks (MOFs) are being intensively studied as solid catalysts for organic reactions in liquid media. This review focuses on those reports in which these materials have been used as catalysts in the ...
Metal organic frameworks as solid catalysts for liquid-phase continuous flow reactions

Dhakshinamoorthy, Amarajothi; Navalón Oltra, Sergio; Asiri, Abdullah M.; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2020-01-04)

[EN] Metal organic frameworks (MOFs) are widely used as solid catalysts in the liquid phase under batch mode conditions. Moving towards the development of industrial processes, data of the performance of MOFs under continuous ...
Metal Organic Frameworks as Versatile Hosts of Au Nanoparticles in Heterogeneous Catalysis

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; García Gómez, Hermenegildo (American Chemical Society, 2017)

[EN] The present review describes the state of the art of the use of metal organic framework (MOF)-encapsulated Au nanoparticles (NPs) as heterogeneous catalysts. The purpose is to show that catalysts with very good ...
Mixed-metal or mixed-linker metal organic frameworks as heterogeneous catalysts

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2016)

[EN] Metal organic frameworks (MOFs) are among the most studied heterogeneous catalysts that have been applied to promote a wide range of reactions. Most of the initial studies on the catalytic activity of MOFs were based ...
Synthesis of borasiloxanes by oxidative hydrolysis of silanes and pinacolborane using Cu3(BTC)2 as a solid catalyst

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; Concepción Heydorn, Patricia; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2017)

[EN] A convenient method for the synthesis of borasiloxanes from silanes and pinacolboranes using Cu-3(BTC)(2) as a heterogeneous catalyst in acetonitrile at 70 degrees C is reported. This procedure is more convenient than ...
The mechanism of photocatalytic CO2 reduction by graphene-supported Cu2O probed by sacrificial electron donors

Mateo-Mateo, Diego; Asiri, Abdullah M.; Albero-Sancho, Josep; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2018)

[EN] Cu2O nanoparticles of 5 nm average size have been adsorbed (1.74 wt% loading) on defective graphene (Cu2O/G) previously obtained by the pyrolysis of alginic acid sodium salt. The Cu2O crystal phase was determined by ...
Tuneable nature of metal organic frameworks as heterogeneous solid catalysts for alcohol oxidation

Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2017)

[EN] Selective benzyl alcohol oxidation (BA) to benzaldehyde has been frequently used as a benchmark reaction to evaluate the catalytic activity of metal organic frameworks (MOFs) as oxidation catalysts. Substituted BAs, ...
Understanding the Origin of the Photocatalytic CO2 Reduction by Au- and Cu-Loaded TiO2: A Microsecond Transient Absorption Spectroscopy Study

Baldovi, Herme G.; Neatu, Stefan; Khan, Anish; Asiri, Abdullah M.; Kosa, Samia A.; García Gómez, Hermenegildo (American Chemical Society, 2015-03-26)

Recent photocatalytic data for CO2 reduction by H2O using simulated sunlight have shown that, while TiO2 Evonik P25 containing Au nanoparticles (NPs; Au/P25) generates considerably higher amounts of hydrogen than methane, ...