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Listar por palabra clave "Carbon nanotubes"

Mostrando ítems 1-20 de 22

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An Atom-Economical Approach to Functionalized Single-Walled Carbon Nanotubes: Reaction with Disulfides

Syrgiannis, Zois; La Parola, Valeria; Hadad, Caroline; Lucío, María Isabel; Vázquez, Ester; Giacalone, Francesco; Prato, Maurizio (John Wiley & Sons, 2013)

[EN] Simple and effective exterior decorating: Single¿walled carbon nanotubes were functionalized with disulfides, including cystamine¿core polyamidoamine dendrimers, simply upon heating in toluene (see picture). One ...
Charge transfer, bonding conditioning and solvation effect in the activation of the oxygen reduction reaction on unclustered graphitic-nitrogen-doped graphene

Ferre Vilaplana, Adolfo; Herrero, Enrique (Royal Society of Chemistry, 2015-05)

The monodentate associative chemisorption of molecular oxygen on unclustered graphitic-nitrogen-doped graphene requires two nitrogen dopants per activated molecule. Significant charge transfers fromregions corresponding ...
Comparative Study of the Rheological Behavior of Multiwalled Carbon Nanotubes and Nanofiber Composites Prepared by the Dilution of a Masterbatch of Polypropylene

Boronat Vitoria, Teodomiro; García Sanoguera, David; Pascual, J.; Peris, F.; Sánchez Nacher, Lourdes (Wiley-Blackwell, 2012-11-05)

In this investigation, the characteristics and the rheological properties of two different nanocomposite systems were investigated. These systems consisted of a dispersion of carbon nanotubes (CNTs) and carbon nanofibers ...
Effect of Processing Method on Mechanical Properties of PC/ABS-MWCNT nanocomposites

Wegrzyn, M.; Galindo, B.; Benedito, A.; Giménez Torres, Enrique (WILEY-VCH Verlag GmbH & Co. KGaA,, 2012)

[EN] Nanocomposites of commercial PC/ABS matrix filled with multi-walled carbon nanotubes (MWCNT) suspended in ethyl alcohol were compounded on twinscrew co-rotating extruder and subsequently injection molded varying ...
Electrochemical Synthesis of an Organic Thermoelectric Power Generator

Serrano-Claumarchirant. José F.; Brotons-Alcázar, Isaac; Culebras, M.; Sanchis Sánchez, María Jesús; Cantarero, A.; Muñoz-Espí, Rafael; Gomez, C.M. (American Chemical Society, 2020-10-14)

[EN] Energy harvesting through residual heat is considered one of the most promising ways to power wearable devices. In this work, thermoelectric textiles were prepared by coating the fabrics, first with multiple-wall ...
Energy approach to the unstressed geometry of single-walled carbon nanotubes

Merli Gisbert, Rafael; Monleón Cremades, Salvador; Lazaro, Carlos (Springer-Verlag, 2017)

[EN] In this paper, the geometry of single-walled carbon nanotubes without any external loading is analyzed via an energy procedure. The nanotube is assumed to be inscribed into a perfect cylinder of unknown diameter, which ...
Enhanced CO2 Capture of Poly(amidoamine)-Modified Graphene Oxide Aerogels with the Addition of Carbon Nanotubes

Pruna, Alina Iuliana; Cárcel, Alfonso Cristóbal; Benedito, Adolfo; Giménez Torres, Enrique (MDPI AG, 2023-02)

[EN] Innovative dendrimer-modified graphene oxide (GO) aerogels are reported by employing generation 3.0 poly(amidoamine) (PAMAM) dendrimer and a combined synthesis approach based on the hydrothermal method and freeze-casting ...
Enhancing the Photocatalytic Activity via Direct CovalentFunctionalization in Single-Walled Carbon Nanotubes

Nova-Fernandez, José Luis; González-Muñoz, Daniel; Pascual-Coca, Gustavo; Cattelan, Mattia; Stefano Agnoli; Pérez-Ruiz, Raúl; Alemán, José; Cabrera, Silvia; Blanco, Matías (John Wiley & Sons, 2024-04)

[EN] Herein, the direct covalent functionalization of single-walled carbon nanotubes (SWNT) is presented with an amino-decorated phenyl-phenothiazine (PTH-NH2) organophotocatalyst through the diazonium chemistry protocol. ...
Geometrical nonlinear formulation of a Molecular Mechanics model applied to the structural analysis of single-walled carbon nanotubes

Merli Gisbert, Rafael; Lazaro, Carlos; Monleón Cremades, Salvador; Domingo Cabo, Alberto (Elsevier, 2015-04)

In this paper, the post-critical behavior and buckling modes of single-walled carbon nanotubes are analyzed via a Molecular Mechanics model. The main target is to develop a general formulation for the model, which has been ...
Glucose-triggered release using enzyme-gated mesoporous silica nanoparticles

Aznar Gimeno, Elena; Villalonga, Reynaldo; Giménez Morales, Cristina; Sancenón Galarza, Félix; Marcos Martínez, María Dolores; Martínez Mañez, Ramón; Díez, Paula; Pingarrón, José M.; Amoros del Toro, Pedro (Royal Society of Chemistry, 2013-05-15)

[EN] A new gated nanodevice design able to control cargo delivery using glucose as a trigger and cyclodextrin-modified glucose oxidase as a capping agent is reported.
Glutathione-sensitive nanoplatform for monitored intracellular delivery and controlled release of Camptothecin

Muniesa Lajara, Carlos; Vicente Vilas, Victor; Quesada Vilar, Manuel; SAEZ-ATIENZAR, SARA; BLESA-BLESA, JOSE RAFAEL; Abasolo, Ibane; Fernández, Yolanda; Botella Asuncion, Pablo (Royal Society of Chemistry, 2013)

[EN] We report the design, synthesis, characterization and in vitro testing of a novel nanodrug based on a covalent linking model that allows intracellular controlled release of the pharmaceutical payload. A new synthetic ...
Heterogeneous Fenton Catalysts Based on Activated Carbon and Related Materials

Navalón Oltra, Sergio; Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Wiley-Blackwell, 2011)

[EN] The Fenton reaction is widely used for remediation of waste water and for the degradation of organic pollutants in water. Currently, there is considerable interest to convert the classical Fenton reaction, which ...
Improvement of a pesticide immunosensor performance using site-directed antibody immobilisation and carbon nanotubes

Marrakchi, Mouna; Helali, S.; Soto Camino, Juan; González Martínez, Miguel Ángel; Abdelghani, Adnane; Hamdi, Moktar (Inderscience, 2013)

The potential toxicity of pesticide residues in drinking water has meant a rigid regulation for the appearance of these pollutants. Thus, in this work, we developed a new immunosensor for atrazine detection. We focused ...
Improving Electrochemical Properties of Polypyrrole Coatings by Graphene Oxide and Carbon Nanotubes

Rosas-Laverde, Nelly Maria; Pruna, Alina Iuliana; Busquets Mataix, David Jeronimo (MDPI AG, 2020-03)

[EN] Nanostructured polypyrrole coating was applied on carbon paper via simple dip-coating and electrochemical approach. Hybridization with nanocarbon materials (graphene oxide (GO) and multi-walled carbon nanotubes (MWCNTs)) ...
Multiwalled carbon nanotubes incorporated into a miscible blend of poly(phenylenether)/polystyrene- Processing and characterization

Sathyanarayana, Shyam; Wegrzyn, Marcin; Olowojoba, Ganiu; Benedito, Adolfo; Giménez Torres, Enrique; Hübner, Christof; Henning, Frank (Department of Polymer Engineering Budapest University of Technology & Economics), Scientific Society of Mechanical Engineerin, 2013-07)

[EN] 4 wt% multiwalled carbon nanotubes (MWCNTs) were incorporated into a miscible blend of polyphenylenether/ polystyrene (PPE/PS) on a twin-screw extruder at a screw speed of 600 rpm. The masterbatch obtained was diluted ...
Photochemistry of covalently functionalized graphene oxide with phenothiazinyl units

Ballesteros Garrido, Rafael; Rodriguez Talavera, Roberto; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Elsevier, 2014-08)

Phenothiazinyl units have been covalently attached to graphene oxide (GO) by nitrene insertion onto Cdouble bond; length as m-dashC bonds. Laser flash photolysis of this material indicates that tethering of phenothiazinyl ...
Polylactic Acid Nanofiber Membranes Grafted with Carbon Nanotubes with Enhanced Mechanical and Electrical Properties

Gisbert-Roca, Fernando; Martínez-Ramos, Cristina; Ivashchenko, Sergiy; Garcia-Bernabe, Abel; Compañ Moreno, Vicente; Monleón Pradas, Manuel (American Chemical Society, 2023-07-12)

[EN] Electroconductive materials based on poly(lactic acid) (PLA) electrospinning membranes grafted with carbon nanotubes (CNTs) functionalized with the carboxylic group R-COOH have been obtained. PLA electrospun membranes ...
Recent Progress in the Development of Composite Membranes Based on Polybenzimidazole for High Temperature Proton Exchange Membrane (PEM) Fuel Cell Applications

Escorihuela, Jorge; Olvera-Mancilla, Jessica; Alexandrova, Larissa; del Castillo, L. Felipe; Compañ Moreno, Vicente (MDPI AG, 2020-09)

[EN] The rapid increasing of the population in combination with the emergence of new energy-consuming technologies has risen worldwide total energy consumption towards unprecedent values. Furthermore, fossil fuel reserves ...
Scaffolds based on hyaluronan and carbon nanotubes gels

Arnal Pastor, María Pilar; Tallà-Ferrer, C.; Herrero-Herrero, María; Martínez-Gómez Aldaraví, A.; Monleón Pradas, Manuel; Vallés Lluch, Ana (SAGE Publications, 2016)

[EN] Physico-chemical and mechanical properties of hyaluronic acid/carbon nanotubes nanohybrids have been correlated with the proportion of inorganic nanophase and the preparation procedure. The mass fraction of -COOH ...
Study of the interference of natural organic matter in the removal of steroid hormones by ultrafiltration-nanoparticle composite membranes (UPF-SWCNTs)

Hervás Martínez, Rubén (Universitat Politècnica de València, 2020-05-15)

[ES] Las nanopartículas de carbono (CNPs) pueden adsorber eficientemente los compuestos disruptores endocrinos (EDCs), tales como las hormonas esteroides (por encima del 60% de eficiencia en la eliminación). Sin embargo, ...