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Browsing by Subject "Copper"

Now showing items 1-20 of 52

Aditivación de micropartículas de cobre y plata en fibras termoplásticas para la funcionalización de productos textiles

González Cifuentes, Jaime (Universitat Politècnica de València, 2018-01-15)

[ES] El objetivo del proyecto consiste en dotar de propiedad antimicrobiana a diferentes tejidos y fibras, en especial sintéticos. Para ello se han planteado diferentes maneras de deposición de partículas nanométricas ...
Adsorción de cobre sobre microplásticos presentes en sistemas marinos

Granero Mazón, Germán (Universitat Politècnica de València, 2022-10-18)

[ES] Los microplásticos es un tema recurrente en nuestra actualidad debido a su gran uso y producción que ocasiona un incremento de residuos perjudiciales para los ecosistemas y para nuestra salud. Además, estos ...
Aerobic Oxidation of Benzylic Alcohols Catalyzed by Metal-Organic Frameworks Assisted by TEMPO

Amarajothi, Dhakshina Moorthy; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (American Chemical Society, 2011)

[EN] Cu3 (BTC)2 (BTC: 1,3,5-benzenetricarboxylate) combined with TEMPO as cocatalyst is an e¿ective and reusable heterogeneous catalyst to e¿ect the aerobic oxidation of benzylic alcohols in acetonitrile to the corresponding ...
Aerobic Oxidation of Thiols Catalyzed by Copper Nanoparticles Supported on Diamond Nanoparticles

Amarajothi ., Dhakshina Moorthy; Navalón Oltra, Sergio; Sempere Aracil, David; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (WILEY-VCH Verlag GmbH & Co. KGaA,, 2012)

After purification by Fenton treatment, commercial diamond nanoparticles (NPs) are a suitable solid support for the deposition of Cu nanoparticles. Heating at 5008C under hydrogen proved to be a convenient annealing process ...
An Na8 Cluster in the Structure of a Novel oxamato-bridged Na'Cu'' three-Dimensional Coordination Polymer

Aukauloo, A.; Ottenwaelder, X.; Ruiz, R.; Journaux, Y.; Pei, Y.; Riviére, E.; Cervera, B.; Muñoz Roca, María Del Carmen (John Wiley & Sons, 1999-01-18)

[EN] The new heterometallic sodium(I)¿copper(II) compound Na4Cu2 (2) · 10.5 H2O (3), where H8[2] stands for N,N',N'',N'''-methanetetrayltetrakismethylenetetrakis(oxamic acid), has been synthesized and its crystal structure ...
Anodic polarization of copper in aqueous LiBr concentrated solutions

Muñoz Portero, María José (Universitat Politècnica de València, 2021-02-23)

[EN] The dataset containts the data that have been registered during the anodic polarization of copper in 400 and 700 g/L LiBr solutions at 25 ºC
Bimetallic Oriented (Au/Cu2O) vs. Monometallic 1.1.1 Au (0) or 2.0.0 Cu2O Graphene-Supported Nanoplatelets as Very Efficient Catalysts for Michael and Henry Additions

Simion, Andrada; Candu, Natalia; Coman, Simona M.; Primo Arnau, Ana Maria; Esteve-Adell, Iván; Michelet, Veronique; Parvulescu, Vasile I.; García Gómez, Hermenegildo (John Wiley & Sons, 2018-12-02)

[EN] Michael and Henry addition reactions have been investigated using mono (Au and Cu2O) and bimetallic nanoplatelets (Au/Cu2O) grafted onto few-layers graphene (fl-G) films as heterogeneous catalysts by comparison with ...
Biomarcadores en tellinas: uso de Retención de Rojo Neutro

Bizarro Álvarez, Isabel (Universitat Politècnica de València, 2015-09-23)

Los niveles de contaminación en el medio marino se han incrementado como consecuencia de las actividades antropogénicas. En los últimos años Donax trunculus ha tenido un descenso importante en la Comunidad Valenciana ...
Carbonylation of Methanol on Metal Acid Zeolites: Evidence for a Mechanism Involving a Multisite Active Center

Blasco Lanzuela, Teresa; Boronat Zaragoza, Mercedes; Concepción Heydorn, Patricia; Corma Canós, Avelino; Law, David; Vidal Moya, José Alejandro (John Wiley & Sons, 2007)
Cationic Copper(I) complexes as highly efficient catalysts for single and double A(3)-coupling mannich reactions of terminal alkynes: Mechanistic insights and comparative studies with analogous Gold (I) complexes

Grirrane, Abdessamad; Alvarez, Eleuterio; García Gómez, Hermenegildo; Corma Canós, Avelino (Wiley-VCH Verlag, 2014-10-27)

[EN] Cationic Cu L complexes (L=Buchwald-type phosphane) with N co-ligands have been characterised by structural and spectroscopic properties. These copper(I) complexes are extremely active catalysts, far more active than ...
Characterization of traditional artificial patinas on copper using the voltammetry of immobilized particles

Doménech-Carbó, Antonio; Ramírez-Barat, Blanca; Petiti, Chiara; Goidianich, Sara; Domenech Carbo, Mª Teresa; Cano, Emilio (Elsevier, 2020-11-15)

[EN] The voltammetry of immobilized particles methodology (VIMP) is used to characterize the composition of artificial patinas on copper. The voltammetric response of carbonate-, nitrate-, chloride-, sulfate-, and sulfide-based ...
Chemical instability of Cu(3)(BTC)(2) by reaction with thiols

Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; Concepción Heydorn, Patricia; García Gómez, Hermenegildo (Elsevier, 2011-06-10)

In contrast to Fe(BTC) (BTC: 1,3,5-benzenetricarboxylate), the crystal structure of Cu3(BTC)2, a commercial metal organic framework widely used as solid catalyst, collapses when contacted with thiols under mild reaction ...
Contribution of the flowing conditions to the galvanic corrosion of the copper/AISI 316L coupling in highly concentrated LiBr solutions

Sánchez Tovar, Rita; Montañés Sanjuan, María Teresa; García Antón, José (Elsevier, 2013-03)

The galvanic corrosion of copper/AISI 316L stainless steel couples has been studied under different temperatures and flowing conditions in heavy LiBr brines. The mixed potential theory, zero-resistance ammeter and weight ...
Controllable synthesis of metal nanoparticles for catalytic applications

Liu, Lichen (Universitat Politècnica de València, 2015-02-24)

[EN] In this thesis, I have discussed the synthesis of Cu nanoparticles and their applications in C-N coupling reactions. I find that Cu nanoparticles will decompose into Cu clusters and Cu clusters are the real active ...
Copper surface-alloying of H-2-permeable Pd-based membrane for integration in Fischer-Tropsch synthesis reactors

Escorihuela-Roca, Sara; Toldrá-Reig, Fidel; Escolástico Rozalén, Sonia; Murciano Martínez, Raúl; MARTINEZ FELIU, AGUSTIN; Serra Alfaro, José Manuel (Elsevier, 2021-02-01)

[EN] Self-supported palladium tubular membranes are surface-functionalized and tested for the selective and controlled addition of H-2 along a fixed-bed catalytic reactor for Fischer-Tropsch hydrocarbon synthesis (FTS). ...
Cu and Co modified beta zeolite catalysts for the trichloroethylene oxidation

Blanch Raga, Neus; Palomares Gimeno, Antonio Eduardo; Martínez Triguero, Luis Joaquín; Valencia Valencia, Susana (Elsevier, 2016-06-15)

[EN] In this work we have studied for the first time the catalytic activity for the oxidation of trichloroethylene (TCE) of Cu and Co beta zeolites. The results show that they are active and selective towards CO2, obtaining ...
Cu mixed oxides based on hydrotalcite-like compounds for the oxidation of trichloroethylene

Blanch Raga, Neus; Palomares Gimeno, Antonio Eduardo; Martínez Triguero, Luis Joaquín; Fetter, Geolar; Bosch, P. (American Chemical Society, 2013-11-13)

[EN] Different Cu/(Mg or Ni)/Al mixed oxides based on hydrotalcite-like compounds have been studied for the catalytic oxidation of trichloroethylene. The catalysts have been synthesized and characterized by different ...
CuNi/Al hydrotalcites synthesized in presence of microwave irradiation

Ayala, Abraham; Fetter, Geolar; Palomares Gimeno, Antonio Eduardo; Bosch, Pedro (Elsevier, 2011)

[EN] To enhance the electronic properties of nanoparticles, functional clusters are usually supported on metal oxides as alumina. Copper and nickel clusters supported on magnesia or alumina are promising materials to ...
Detoxificación por fotocatálisis solar de efl uentes cianurados provenientes de una industria metalúrgica

Silvestre Mira, María; Vercher Pérez, Rosa Francisca; Palacios Guillem, Santiago; Arques Sanz, Antonio; Amat Payá, Ana María; Añó Montalvá, Enrique José (Federación de Asociaciones de Ingenieros Industriales de España (FAIIE), 2012)

[En] Wastewaters from metal fi nishing industry contain, among other pollutants, high amounts of cyanide and heavy metals, which results in a high toxicity of the effl uent. Therefore, it is necessary to detoxify the ...
Dynamic Structure and Subsurface Oxygen Formation of a Working Copper Catalyst under Methanol Steam Reforming Conditions: An in Situ Time-Resolved Spectroscopic Study

Ruano-Sánchez, Daniel; Cored-Bandrés, Jorge; Azenha, C.; Pérez-Dieste, Virginia; Mendes, A.; Mateos-Pedrero, C.; Concepción Heydorn, Patricia (American Chemical Society, 2019-04-05)

[EN] The dynamic behavior of a CuO/ZnO/Ga2O3 catalyst under methanol steam reforming (MSR) reaction conditions promoted by a high dispersion of the copper nanoparticles and defect sites of a nonstoichiometric ZnGa2O4 spinel ...