Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/44946
Title: Synthesis, characterization and magnetic properties of Co@Au core-shell nanoparticles encapsulated by nitrogen-doped multiwall carbon nanotubes
Author: Silva, J.M.
Bautista, F.
Sanchez-Diaz, J.C.
Nuno-Donlucas, S.M.
Puig, J.E.
Hernandez, E.
Issue Date: 2015
Abstract: The synthesis of superabsorbent poly(sodium acrylate) by semicontinuous inverse heterophase polymerization is reported here. In this process, an aqueous solution of sodium acrylate, initiator, and a cross-linking agent is dosed at a controlled rate over an organic solution containing surfactant. These nanogels exhibit a large swelling ratio (compared to the dry nanoparticles synthesized by inverse microemulsion polymerization), which increase to some extent with temperature, but then at ca. 30°C, they de-swell slightly. Possible explanations to this behavior are the release of residual stresses originated during nanoparticles purification and drying, the association-dissociation of ionic clusters, and the thermoelastic inversion point of the elastic modulus of the nanogels. " 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",,,,,,"10.1002/mren.201400066",,,"http://hdl.handle.net/20.500.12104/44946","http://www.scopus.com/inward/record.url?eid=2-s2.0-84926479797&partnerID=40&md5=5f6003493ec2f73239d6f53521ae1091",,,,,,"2",,"Macromolecular Reaction Engineering",,"125
131",,"9",,"Scopus
WOS",,,,,,"Microemulsions; Nanogels; Poly(sodium acrylate); Semicontinuous inverse heterophase polymerizations",,,,,,"Synthesis of poly(Sodium Acrylate) nanogels via semicontinuous inverse heterophase polymerization",,"Article" "46756","123456789/35008",,"Carrizales-Martínez, G., Inst. Tecn. de Ciudad Madero, Div. De Estudios de Posgrado, J. Rosas y Jesús Urueta s/n, 89440 Cd. Madero, Tamaulipas, Mexico; Femat, R., Inst. Potosino de Invest. Cie./Tecn., Dpto. de Matematicas Aplicadas, Apdo. Postal 3-90, 78231 Tangamanga, San Luis Potosi, Mexico; González-Álvarez, V., Univ. de Guadalajara, Dpto. de Ingeniería Quimica, Blvd. Marcelino García Barragan, 44860 Guadalajara, Jalisco, Mexico",,"Carrizales-Martinez, G.
Femat, R.
Gonzalez-Alvarez, V.",,"2003",,"The stabilization of a catalytic reactor for hydrocarbon alkylation reactions in the presence of unknown kinetics is presented in this paper. A robust approximation to a controller obtained by geometric control techniques was employed. The controller consists of a linear-like feedback and a dynamic uncertainty estimator. Two versions are presented for this estimator, a discrete-time scheme and a continuous time scheme. The proposed controller is able to stabilize the catalytic reactor close to the set-point (practical stability), despite parametric variations and internal model uncertainties. A comparison of both schemes is finally presented to show that they present similar performance. Therefore, any of the controller versions can be used.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44977","http://www.scopus.com/inward/record.url?eid=2-s2.0-0142195921&partnerID=40&md5=69469919ffbb219e401347b4e04460b2",,,,,,"5",,"Informacion Tecnologica",,"43
49",,"14",,"Scopus",,,,,,"Catalytic reactors; Hydrocarbon alkylation; Non-linear control; Temperature control",,,,,,"Temperature Control of a Catalytic Reactor for the Hydrocarbon Alkylation with Unknown Kinetics [Control de Temperatura en un Reactor Catalático para la Alquilación de Hidrocarburos con Cinética Incierta]",,"Article" "46707","123456789/35008",,"Sebastian, P.J., Centro de Investigación en Energía-UNAM, Temixco, Morelos, 62580, Mexico, Energía Y Sustentabilidad, UPCH, Tuxtla Gutierrez, Chiapas, Mexico; Castañeda, R., Centro Universitario de Los Valles, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km 45.5, CP 46600 Ameca, Jalisco, Mexico; Ixtlilco, L., Posgrado en Ciencia e Ingeniería de Materiales, UAEM, Av. Universidad, Chamilpa, Cuernavaca, Mexico; Mejia, R., Posgrado en Ciencia e Ingeniería de Materiales, UAEM, Av. Universidad, Chamilpa, Cuernavaca, Mexico; Pantoja, J., Energía Y Sustentabilidad, UPCH, Tuxtla Gutierrez, Chiapas, Mexico; Olea, A., Energía Y Sustentabilidad, UPCH, Tuxtla Gutierrez, Chiapas, Mexico",,"Sebastian, P.J.
Castaneda, R.
Ixtlilco, L.
Mejia, R.
Pantoja, J.
Olea, A.",,"2008",,"We report the synthesis and characterization of nanostructured semiconductors such as CdS, CuInSe2 (CIS) and TiO2 for photovoltaic cells and photoelectrochemical cells for hydrogen production. The CdS was prepared by chemical deposition, CuInSe2 by electrodeposition and chemical method and TiO2 by sol-gel method. All the three semiconductors were prepared in the thin film and powder form. The CdS was synthesized as wide band gap n-type material in the nanostructured form. The p-CdS was prepared also in the nanostructured form with Cu doping. P-type CuInSe2 films and powders were synthesized in the nanostructured form. TiO2 was always formed in the nanostructured and n-type form. The films and powders were characterized by x-ray diffraction, atomic force microscopy, and opto-electronic methods. All the semiconductors were formed in the nanostructured form with different band gaps depending on the particle size and post-deposition treatments.",,,,,,"10.1117/12.796913",,,"http://hdl.handle.net/20.500.12104/44928","http://www.scopus.com/inward/record.url?eid=2-s2.0-56249099036&partnerID=40&md5=b45e15dd5b50a0cadd6848d69825b80d",,,,,,,,"Proceedings of SPIE - The International Society for Optical Engineering",,,,"7044",,"Scopus",,,,,,"CdS; CuInSe2; Photoelectrochemical cell; Photovoltaic cell; TiO 2",,,,,,"Synthesis and characterization of nanostructured semiconductors for photovoltaic and photoelectrochemical cell applications",,"Conference Paper" "46731","123456789/35008",,"Munoz-Sandoval, E., Advanced Materials Division, IPICYT, Camino a la Presa San Jose 2055, San-Luis-Potosí 78216, Mexico; Perea-Lopez, N., Department of Physics, Pennsylvania State University, University Park, PA 16802-6300, United States; Lima-Juarez, R., Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, Cidade Universityria, Av. Prof. Luiz Barros Freire, s/n, 50670-901 Recife, PE, Brazil; Labrada-Delgado, G.J., Advanced Materials Division, IPICYT, Camino a la Presa San Jose 2055, San-Luis-Potosí 78216, Mexico; Rivera-Escoto, B.A., Advanced Materials Division, IPICYT, Camino a la Presa San Jose 2055, San-Luis-Potosí 78216, Mexico; Zamudio, A., Departamento de Física, CUCEI, U. de G., Blvd. Marcelino García Barragan #1421, Guadalajara, Jal. 44430, Mexico; Silva-Pereyra, H.G., Advanced Materials Division, IPICYT, Camino a la Presa San Jose 2055, San-Luis-Potosí 78216, Mexico; Robles-Avila, E., Advanced Materials Division, IPICYT, Camino a la Presa San Jose 2055, San-Luis-Potosí 78216, Mexico; Terrones, M., Department of Physics, Pennsylvania State University, University Park, PA 16802-6300, United States, Research Center for Exotic Nano Carbons (JST), Shinshu University, 4-17-1 Wakasato, Nagano City 380-8553, Japan",,"Munoz-Sandoval, E.
Perea-Lopez, N.
Lima-Juarez, R.
Labrada-Delgado, G.J.
Rivera-Escoto, B.A.
Zamudio, A.
Silva-Pereyra, H.G.
Robles-Avila, E.
Terrones, M.",,"2014",,"Co/Au bilayer thin films were deposited on Si/SiOx substrates using the magnetron sputtering method and used as a catalytic support to grow forests of aligned nitrogen-doped multiwalled carbon nanotubes (N-MWCNT) via chemical vapor deposition (CVD) at 850 °C, using benzylamine (C 6H5CH2NH2) as a carbon and nitrogen source. Interestingly, the resulting N-MWCNT contains Co@Au core-shell nanoparticles located at their tips. We found that the metal particle cores consist of cobalt coated by an Au shell of few nanometers. Magnetic measurements revealed a ferromagnetic behavior of the system composed of Co@Au nanoparticles encapsulated inside N-MWCNT. The results are compared with pristine N-MWNT containing only Co nanoparticles encapsulated in their cores. " 2014 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/20.500.12104/44952
http://www.scopus.com/inward/record.url?eid=2-s2.0-84905651463&partnerID=40&md5=1b72d2ecba2e97fd7540f485145ae771
Appears in Collections:Producción científica UdeG

Files in This Item:
There are no files associated with this item.


Items in RIUdeG are protected by copyright, with all rights reserved, unless otherwise indicated.