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Browsing by Subject "Zinc"

Now showing items 1-20 of 26

Analysis of metallic coatings based in zinc-aluminium-magnesium alloys, in terms of performance and long-term corrosion. Case study: Electrical cable trays selection in project design

Chenoll Mora, Ernesto (Universitat Politècnica de València, 2021-06-07)

[ES] En los últimos años, se han desarrollado numerosos tipos de recubrimientos superficiales frente a la corrosión basados especialmente en aleaciones de cinc-aluminio-magnesio (conocidas como aleaciones "ZM"), como ...
Bio-Nanocomposite Hydrogel Based on Zinc Alginate/Graphene Oxide: Morphology, Structural Conformation, Thermal Behavior/Degradation, and Dielectric Properties

Sabater i Serra, Roser; Molina Mateo, José; Torregrosa Cabanilles, Constantino; Andrio-Balado, Andreu; Meseguer Dueñas, José María; Serrano-Aroca, Ángel (MDPI AG, 2020-03)

[EN] Bio-nanocomposite hydrogels based on sodium alginate (SA) as polymer matrix and graphene oxide (GO) nanosheets with zinc as crosslinking agent were synthesized with the aim of incorporating the intrinsic properties ...
Catalytic Enantioselective Aza-Reformatsky Reaction with Cyclic Imines

De Munck, Lode; Vila, Carlos; Muñoz Roca, María del Carmen; Pedro, José R. (Wiley, 2016-12-05)

A catalytic highly enantioselective aza-Reformatsky reaction with cyclic aldimines and ketimines for the synthesis of chiral b-amino esters with good yields and excellent enantioselectivities is reported.Areadily ...
Catalytic enantioselective aza-Reformatsky reaction with seven-membered cyclic imines dibenzo[b,f][1,4]oxazepines

De Munck, Lode; Sukowski, Verena; Vila, Carlos; Muñoz Roca, María Del Carmen; Pedro, José R. (Royal Society of Chemistry, 2017-08-01)

[EN] A catalytic enantioselective aza-Reformatsky reaction is reported with cyclic dibenzo[b,f][1,4]oxazepines and ethyl iodoacetate leading to the synthesis of chiral ethyl 2-(10,11-dihydrodibenzo[b,f][1,4]oxazepin-11- ...
Degradation of Penicillinic Antibiotics and beta-Lactamase Enzymatic Catalysis in a Biomimetic Zn-Based Metal-Organic Framework

Escamilla, Paula; Bartella, Lucia; Sanz-Navarro, Sergio; Percoco, Rita Maria; Di Donna, Leonardo; Prejanò, Mario; Marino, Tiziana; Ferrando-Soria, Jesús; Armentano, Donatella; Leyva Perez, Antonio; Pardo, Emilio (John Wiley & Sons, 2023-10-23)

[EN] beta-Lactam antibiotics are one of the most commonly prescribed drugs to treat bacterial infections. However, their use has been somehow limited given the emergence of bacteria with resistance mechanisms, such as ...
Effect of dietary organic zinc sources on growth performance, incidence of diarrhoea, serum and tissue zinc concentrations, and intestinal morphology in growing rabbits

Yan, J.Y.; Zhang, G.W.; Zhang, C.; Tang, L.; Kuang, S.Y. (Universitat Politècnica de València, 2017-03-30)

[EN] This study was conducted to evaluate the effect of dietary organic zinc (Zn) sources on growth performance, the incidence of diarrhoea, serum and tissue Zn concentration, and intestinal morphology in growing rabbits. ...
Electrochemical recovery of zinc from the spent pickling baths coming from the hot dip galvanizing industry. Potentiostatic operation

Carrillo Abad, Jorge; García Gabaldón, Montserrat; Ortega Navarro, Emma María; Pérez-Herranz, Valentín (Elsevier, 2011-09)

An electrochemical reactor was developed to recover zinc from the spent pickling solutions coming from the hot dip galvanizing industry. These solutions mainly contain ZnCl2 and FeCl2 in aqueous HCl media. The effect of ...
Electrochromic switching of electrodeposited ZnO+Zn5(OH) 8Cl2 films

Rayón Encinas, Emilio; Cembrero Cil, Jesús; Marí Soucase, Bernabé (Elsevier, 2011)

This study reports the effect of optical switching of electrodeposited ZnO + Zn5(OH)8Cl2 films on a gold electrode in a bath of 0.05 M Zn(NO3)2 + 0.1 M KCl. The coating turns black when cathodic polarization is applied yet ...
Estudio de la recuperación del zinc presente en los baños agotados de decapado procedentes de las industrias de galvanizado de zinc en caliente mediante técnicas electroquímicas

Carrillo Abad, Jorge (Universitat Politècnica de València, 2014-09-03)

Actualmente, el 43% de la producción mundial de zinc se destina al proceso de galvanizado por inmersión en caliente. Previamente a la introducción de las piezas en el baño de zinc fundido, éstas necesitan una serie de ...
Estudio de la recuperación electroquímica de zinc procedente de los baños de decapado de las industrias de galvanizado de zinc en caliente

Vallcanera Miñana, Simeón (Universitat Politècnica de València, 2021-02-17)

[ES] En este trabajo fin de grado se realiza un estudio electroquímico de la recuperación del zinc proveniente de baños de decapado agotados mediante la técnica de la electrodeposición, con el objetivo de recuperar la ...
Generación de entornos celulares con iones bioactivos de zinc y su efecto sobre la diferenciación neural

Guillot Ferriols, María Teresa (Universitat Politècnica de València, 2016-09-02)

[ES] El zinc es uno de los metales de transición más abundantes en el organismo. Es un elemento esencial para el crecimiento y el desarrollo y está ampliamente implicado en la dinámica celular, debido a su presencia en la ...
Los elementos traza: Iodo, Zinc y Manganeso

Sirera Pérez, Rafael (Universitat Politècnica de València, 2024-06-10)

Objeto de aprendizaje que describe los elementos que forman los seres vivos, especialmente el iodo, zinc, manganeso
Microencapsulation of zinc plating waste using silicone polymers

Vinter, S.; Bednarik, V.; Montañés, Maria-Teresa; Cernotova, A.; Kadleckova, M. (Elsevier, 2021-06-15)

[EN] This paper deals with the treatment of hazardous zinc-bearing waste using hydraulic binders and silicone polymers, with the aim to allow its safe disposal into landfill. The waste was solidified using hydraulic binders ...
Monitorización del proceso de galvanizado por inmersión en baño caliente de zinc

García-Díaz, J. Carlos; Trull, Oscar; Peiró Signes, Angel (Compobell, 2021-07-15)

[ES] La industria del automóvil requiere de la utilización en grandes cantidades de acero galvanizado. El proceso de obtención industrial más utilizado en España es el de galvanizado continuo por inmersión en baño caliente ...
Recovery of zinc from spent pickling solutions using an electrochemical reactor in presence and absence of an anion-exchange membrane: Galvanostatic operation

Carrillo Abad, Jorge; García Gabaldón, Montserrat; Ortega Navarro, Emma María; Pérez-Herranz, Valentín (Elsevier, 2012-09-19)

The performance of a one- and two-compartment electrochemical reactor under galvanostatic control for zinc recovery present in the spent pickling solutions is studied in this paper. These solutions, which mainly contain ...
Stabilization/solidification of hot dip galvanizing ash using different binders

Vinter, Stepan; Montañés, Maria-Teresa; Bednarik, Vratislav; Hrivnova, P. (Elsevier, 2016-12-15)

[EN] This study focuses on solidification of hot dip-galvanizing ash with a high content of zinc and soluble substances. The main purpose of this paper is to immobilize these pollutants into a matrix and allow a safer way ...
Structural Analysis of Zincocenes with Substituted Cyclopentadienyl Rings

Fernandez, Rafael; Grirrane, Abdessamad; Resa, Irene; Rodriguez, Amor; Carmona, Ernesto; Alvarez, Eleuterio; Gutierrez-Puebla, Enrique; Monge, Angeles; Lopez del Amo, Juan Miguel; Limbach, Hans-Heinrich; Lledos, Agusti; Maseras, Feliu; del Rio, Diego (Wiley, 2009)

[EN] New zincocenes [ZnCp'2] (2-5) with substituted cyclopentadienyl ligands C(5)Me(4)H, C(5)Me(4)tBu, C(5)Me(4)SiMe(2)tBu and C(5)Me(4)SiMe(3), respectively, have been prepared by the reaction of ZnCl(2) with the appropriate ...
Structure and Conformational Studies of Aza-Crown 8-Amino-BODIPY Derivatives: Influence of Steric Hindrance on Their Photophysical Properties

Costero, Ana M.; Betancourt-Mendiola, M.L.; Gaviña, Pablo; Ochando Gómez, Luis Enrique; Gil Grau, Salvador; Chulvi, Katherine; Peña-Cabrera, E. (John Wiley & Sons, 2017)

[EN] Herein, we report the synthesis, X-ray crystal structure and photophysical studies of six new 8-amino-BODIPY derivatives containing crown or azo-crown ether moieties. The influence of steric hindrance, caused by the ...
Synthesis and structural characterization of dizincocenes Zn2( 5-C5Me5)2 and Zn2( 5-C5Me4Et)2

Grirrane ., Abdessamad; Resa, I.; Rodriguez, A.; Carmona, E. (Elsevier, 2008-08)

The synthesis and structural characterization of the dimetallocenes Zn-2(eta(5)-C5Me5)(2) and Zn-2(eta(5)-C5Me4Et)(2) are reviewed together with unsuccessful attempts to obtain analogous complexes containing other ...
The effect of different dietary zinc sources on mineral deposition and antioxidant indices in rabbit tissues

Čobanová, Klaudia; Chrastinová, Ľubica; Chrenková, Mária; Polačiková, Mária; Formelová, Zuzana; Ivanišinová, Oksana; Ryzner, Miroslav; Grešáková, Ľubomíra (Universitat Politècnica de València, 2018-09-28)

[EN] The purpose of this study was to compare the effect of dietary zinc from inorganic and organic sources on the concentration of Zn, Cu, Mn and Fe in plasma, tissues and faeces of rabbits. Simultaneously, the activities ...