Resultats globals: 11 registres trobats en 0.01 segons.
Articles, 10 registres trobats
Documents de recerca, 1 registres trobats
Articles 10 registres trobats  
1.
19 p, 4.2 MB Review on sol-gel synthesis of perovskite and oxide nanomaterials / Navas, Daniel (Universidad Tecnológica Metropolitana (Santiago, Xile). Departamento de Química) ; Fuentes, Sandra (Center for the Development of Nanoscience and Nanotechnology (Santiago, Xile)) ; Castro-Alvarez, Alejandro (Universidad de La Frontera. Facultad de Medicina) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
Sol-Gel is a low cost, well-established and flexible synthetic route to produce a wide range of micro- and nanostructures. Small variations in pH, temperature, precursors, time, pressure, atmosphere, among others, can lead to a wide family of compounds that share the same molecular structures. [...]
2021 - 10.3390/gels7040275
Gels, Vol. 7, issue 4 (Dec. 2021) , art. 275  
2.
16 p, 5.2 MB Preparation and characterization of novel mixed periodic mesoporous organosilica nanoparticles / Li, Hao (Universitat Autònoma de Barcelona. Departament de Química) ; Raehm, Laurence (Université de Montpellier. Centre National de la Recherche Scientifique) ; Charnay, Clarence (Université de Montpellier. Centre National de la Recherche Scientifique) ; Durand, Jean-Olivier (Université de Montpellier. Centre National de la Recherche Scientifique) ; Pleixats i Rovira, Roser (Universitat Autònoma de Barcelona. Departament de Química)
We report herein the preparation of mixed periodic mesoporous organosilica nanoparticles (E-Pn 75/25 and 90/10 PMO NPs) by sol-gel co-condensation of E -1,2-bis(triethoxysilyl)ethylene ((E)-BTSE or E) with previously synthesized disilylated tert -butyl 3,5-dialkoxybenzoates bearing either sulfide (precursor P1) or carbamate (precursor P2) functionalities in the linker. [...]
2020 - 10.3390/ma13071569
Materials, Vol. 13, Issue 7 (April 2020) , art. 1569  
3.
16 p, 190.5 KB Synthesis and optical characterization of Er-doped bismuth titanate nanoparticles grown by sol-gel hydrothermal method / Fuentes, Sandra (Centro para el Desarrollo de la Nanociencia y la Nanotecnología (Chile)) ; Muñoz, Pamela (Universidad Católica del Norte) ; Llanos, Jaime (Universidad Católica del Norte) ; Vega, Mauricio (Universidad Católica del Norte) ; Martin, Inocencio R. (Universidad de La Laguna) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
The Er-doped bismuth titanate (BiTiO, BIT) nanoparticles were synthesized by a combined sol-gel and hydrothermal method under a partial oxygen pressure of 30 bar. The composition and morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman scattering. [...]
2017 - 10.1016/j.ceramint.2016.11.200
Ceramics international, Vol. 43, Issue 4 (March 2017) , p. 3623-3630  
4.
17 p, 2.1 MB Catalitzadors reciclables basats en sílices híbrides / Pleixats i Rovira, Roser (Universitat Autònoma de Barcelona. Departament de Química)
En aquest article es fa una revisió dels estudis sobre catalitzadors reciclables basats en sílices híbrides efectuats en el grup de recerca i s'il·lustra amb alguns exemples representatius (complexos de Pd per a reaccions d'acoblament C-C, alquilidens de Ru per a reaccions de metàtesi, complexos Rh-NHC per a cicloaddicions [2+2+2] d'alquins, complexos Au-NHC per a reaccions de reordenament d'èsters al·lílics i cicloisomerització d'àcids g-alquinoics, prolinamides quirals per a reaccions aldòliques asimètriques).
This is a review of the studies conducted on hybrid silica-based recyclable catalysts in our research group, illustrated with some representative examples (Pd complexes for C-C coupling reactions, Ru alkylidenes for metathesis reactions, Rh-NHC complexes for [2+2+2] cycloaddition reactions of alkynes, Au-NHC complexes for rearrangement reactions of allylic esters and cycloisomerization of g-alkynoic acids, and chiral prolinamides for asymmetric aldol reactions).

2017 - 10.2436/20.2003.01.81
Revista de la Societat Catalana de Química, Num. 16 (2017) , p. 7-23  
5.
7 p, 578.2 KB Application of MEH-PPV/SnO2 bilayer as hybrid solar cell / Ayllon, Jose Antonio (Universitat Autònoma de Barcelona. Departament de Química) ; Lira-Cantu, Monica (Institut Català de Nanociència i Nanotecnologia)
The applications of conducting organic polymers in combination with semiconductor oxides are promising candidates as active materials for air-stable hybrid electronic applications such as transistors, light emitting diodes or organic photovoltaics. [...]
2009 - 10.1007/s00339-008-5023-z
Applied physics A, Vol. 95, Issue 1 (April 2009) , p. 249-255  
6.
22 p, 322.6 KB Ultraviolet pulsed laser crystallization of Ba0.8Sr0.2TiO3 films on LaNiO3-coated silicon substrates / Queraltó López, Albert (Institut de Ciència de Materials de Barcelona) ; Pérez del Pino, Ángel (Institut de Ciència de Materials de Barcelona) ; De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ; Tristany, Mar (Institut de Ciència de Materials de Barcelona) ; Obradors, Xavier (Institut de Ciència de Materials de Barcelona) ; Puig i Molina, Mª Teresa (Institut de Ciència de Materials de Barcelona) ; Trolier-McKinstry, Susan (Pennsylvania State University)
In this work, BaSrTiO (BST) films on LaNiO-buffered SiO/Si (LNO/SiO/Si) substrates were crystallized by pulsed laser irradiation. Solution-derived amorphous barium-strontium-titanate precursor layers were crystallized with a KrF excimer laser in oxygen ambient at fluences ranging from 50 to 75 mJ cm. [...]
2016 - 10.1016/j.ceramint.2015.11.075
Ceramics international, Vol. 42, Núm. 3 (February 2016) , p. 4039-4047  
7.
20 p, 8.5 MB Characterization of industrial coolant fluids and continuous ageing monitoring by wireless node-enabled fiber optic sensors / Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ; Meristoudi, Anastasia (National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute) ; Markos, Christos (National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute) ; Sakellariou, Andreas (PRISMA Electronics S.A.) ; Papadopoulos, Aggelos (Kleemann S.A.) ; Katsikas, Serafim (PRISMA Electronics S.A.) ; Riziotis, Christos (National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute.)
Environmentally robust chemical sensors for monitoring industrial processes or infrastructures are lately becoming important devices in industry. Low complexity and wireless enabled characteristics can offer the required flexibility for sensor deployment in adaptable sensing networks for continuous monitoring and management of industrial assets. [...]
2017 - 10.3390/s17030568
Sensors (Basel, Switzerland), Vol. 17, issue 3 (March 2017) , art. 568  
8.
12 p, 288.8 KB Organic-Inorganic Hybrid Silica Material Derived from a Monosilylated Grubbs-Hoveyda Ruthenium Carbene as a Recyclable Metathesis Catalyst / Borja Rodríguez, Guadalupe (Universitat Autònoma de Barcelona. Departament de Química) ; Pleixats i Rovira, Roser (Universitat Autònoma de Barcelona. Departament de Química) ; Alibes, Ramón (Universitat Autònoma de Barcelona. Departament de Química) ; Cattoën, Xavier (Institut Charles Gerhardt Montpellier (Montpellier, França)) ; Wong Chi Man, Michel (Institut Charles Gerhardt Montpellier (Montpellier, França))
The synthesis of a monosilylated Grubbs-Hoveyda ruthenium alkylidene complex is described, as well as the preparation and characterization of the corresponding material by sol-gel cogelification with tetraethoxysilane (TEOS) and the assay of this recyclable supported catalyst in ring-closing diene and enyne metathesis reactions under thermal and microwave conditions.
2010 - 10.3390/molecules15085756
Molecules, Vol. 15 N. 8 (August 2010) , p. 5756-5767  
9.
11 p, 666.2 KB Rhodium-NHC hybrid silica materials as recyclable catalysts for [2+2+2] cycloaddition reactions of alkynes / Fernández Wang, Martí (Universitat de Girona. Institut de Química Computacional i Catàlisi) ; Ferré Romeu, Meritxell (Universitat Autònoma de Barcelona. Departament de Química) ; Pla i Quintana, Anna (Universitat de Girona. Institut de Química Computacional i Catàlisi) ; Parella Coll, Teodor (Universitat Autònoma de Barcelona. Departament de Química) ; Pleixats i Rovira, Roser (Universitat Autònoma de Barcelona. Departament de Química) ; Roglans i Ribas, Anna (Universitat de Girona. Institut de Química Computacional i Catàlisi)
Bis-silylated dihydroimidazolium salt 1 and monosilylated imidazolium salt 2 are transformed to (NHC)RhCl(COD) complexes 3 and 4, allowing the preparation of hybrid silica materials either by sol-gel or grafting processes. [...]
2014 - 10.1002/ejoc.201402649
European journal of organic chemistry, Vol. 2014, Issue 28 (Aug. 2014) , p. 6242-6251  
10.
21 p, 1.5 MB Voltammetric sensor for theophylline using sol-gel immobilized molecularly imprinted polymer particles / Bates, Ferdia (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
Application of Molecularly Imprinted Polymers (MIPs) to sensor substrates holds great promise within the field of electrochemical sensing due to their low price, tailored selectivity and facile synthesis protocols. [...]
2015 - 10.1007/s00604-014-1413-4
Mikrochimica acta, Vol. 182, Issue 5-6 (April 2015) , p. 933-942  

Documents de recerca 1 registres trobats  
1.
240 p, 9.0 MB Carbon Xerogel nanocomposite materials for electrochemical devices: application to heavy metal detection / Niu, Pengfei ; Fernandez-Sanchez, Cesar, dir. ; Gich García, Martí, dir. ; Casas Duocastella, Lluís (Universitat Autònoma de Barcelona. Departament de Geologia) ; Universitat Autònoma de Barcelona. Departament de Geologia
En aquesta Tesi es descriu la fabricació d'elèctrodes nanocompòsits de carboni porós en forma de capa prima i capa gruixuda i la seva aplicació en l'anàlisi de metalls pesants en aigües. Aquests nanocompòsits de carboni es van preparar a partir de la piròlisi de materials obtinguts per química sol-gel, concretament de gels de resorcinol-formaldehid i de resorcinol-formaldehid amb sílice, que contenien precursors de bismut. [...]
En esta Tesis se describe la fabricación de electrodos nanocompuestos de carbono poroso en forma de capa delgada y capa gruesa y su aplicación al análisis de metales pesados en aguas. Estos nanocompuestos de carbono se prepararon a partir de la pirolisis de materiales obtenidos por química sol-gel, concretamente de geles de resorcinol-formaldehído y de resorcinol-formaldehído con sílice, que contenían precursores de bismuto. [...]
This Thesis describes the fabrication of both thick-film and thin-film electrodes with porous carbon nanocomposite materials and the application of these electrodes in the electrochemical analysis of heavy metals in aqueous solutions. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2015  

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