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Listar por palabra clave "Zinc oxide"

Mostrando ítems 1-14 de 14

Desarrollo de nanoestructuras de ZnO mediante anodizado electroquímico en diferentes condiciones para su aplicación en el área energética

Batista Grau, Patricia (Universitat Politècnica de València, 2021-09-02)

[ES] La presente Tesis Doctoral se centra en el desarrollo de nanoestructuras de óxido de zinc (ZnO) mediante anodizado electroquímico en diferentes condiciones para su aplicación en el área energética, en particular, en ...
Electrochemical formation of novel TiO2-ZnO hybrid nanostructures for photoelectrochemical water splitting applications

Sánchez Tovar, Rita; Blasco-Tamarit, E.; Fernández Domene, Ramón Manuel; Villanueva-Pascual, M.; Garcia-Anton, Jose (Elsevier, 2020-04-25)

[EN] In this study, hybrid ZnO-TiO2 nanostructures have been synthesised by means of a simple electrochemical anodisation of titanium and subsequently ZnO electrodeposition. The influence of Zn(NO3)(2) concentration and ...
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 ...
Foliar Applications of ZnO and Its Nanoparticles Increase Safflower (Carthamus tinctorius L.) Growth and Yield under Water Stress

Ghiyasi, Mahdi; Danesh, Younes Rezaee; Amirnia, Reza; Najafi, Solmaz; Mulet, José Miguel; Porcel, R. (MDPI, 2023-01)

[EN] Foliar application or minerals is a methodology to promote growth and/or yield and to protect plants against different kinds of stresses. Currently there is a great interest in evaluating the effect of nanoparticles ...
Formation of ZnO nanowires by anodization under hydrodynamic conditions for photoelectrochemical water splitting

Batista-Grau, Patricia; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2020-01-15)

[EN] The present work studies the influence of hydrodynamic conditions (from 0 to 5000 rpm) during Zn anodization process on the morphology, structure and photoelectrocatalytic behavior of ZnO nanostructures. For this ...
High-Efficiency Electrodeposition of Large Scale ZnO Nanorod Arrays for Thin Transparent Electrodes

Pullini, D.; Pruna, Alina Iuliana; Zanin, Stefano; Busquets Mataix, David Jerónimo (Electrochemical Society, 2012)

In the present work an effective technique to synthesize large-scale c-axis oriented ZnO nanorod (NR) arrays is presented. The manuscript reports a single-step cathodic electrodeposition, either in aqueous and organic ...
Influence of Deposition Potential on Structure of ZnO Nanowires Synthesized in Track-Etched Membranes

Pruna, Alina Iuliana; Pullini, Daniele; Busquets Mataix, David Jerónimo (Electrochemical Society, 2012)

Single-crystal ZnO nanowires long up to several microns were fabricated by one-step electrochemical deposition. A template-based process employing track-etched polycarbonate (TE-PC) membranes was used for this purpose. The ...
Influence of Zn(NO3)2 concentration during the ZnO electrodeposition on TiO2 nanosponges used in photoelectrochemical applications

Navarro-Gázquez, Pedro José; Blasco-Tamarit, Encarna; Muñoz-Portero, María José; Solsona-Espriu, Benjamín; Fernández-Domene, Ramón Manuel; Sánchez Tovar, Rita; Garcia-Anton, Jose (Elsevier, 2022-05-15)

[EN] TiO2/ZnO hybrid nanostructures were formed by electrochemical anodization of titanium and subsequently ZnO electrodeposition. Different Zn(NO3)(2) concentrations were used for electrodeposition (10-60 mM). A structural, ...
Nanostructured hybrid ZnO thin films for energy conversion

Moya Forero, Mónica Mercedes; ANURA SAMANTILLEKE; Mollar García, Miguel Alfonso; Marí Soucase, Bernabé (SpringerOpen, 2011)

We report on hybrid films based on ZnO/organic dye prepared by electrodeposition using tetrasulfonated copper phthalocyanines (TS-CuPc) and Eosin-Y (EoY). Both the morphology and porosity of hybrid ZnO films are highly ...
Original Approach to Synthesize TiO2/ZnO Hybrid nanosponges used as photoanodes for photoelectrochemical applications

Navarro-Gázquez, Pedro José; Muñoz-Portero, María-José; Blasco-Tamarit, E.; Sánchez-Tovar, Rita; Fernández-Domene, Ramón Manuel; Garcia-Anton, Jose (MDPI AG, 2021-11)

[EN] In the present work, TiO2/ZnO hybrid nanosponges have been synthesized for the first time. First, TiO2 nanosponges were obtained by anodization under hydrodynamic conditions in a glycerol/water/NH4F electrolyte. Next, ...
Photoluminescent properties of electrochemically synthetized ZnO nanotubes

Gracia Jimenez, J. M.; Cembrero Cil, Jesús; Mollar García, Miguel Alfonso; Marí Soucase, Bernabé (Elsevier, 2016-09)

ZnO nanotubes were prepared by a sequential combination of electrochemical deposition, chemical attack and regeneration. ZnO nanocolumns were initially electrodeposited on conductive substrates and then converted into ...
The surface tension of pure Zn measured by means of the maximum bubble pressure method

Ferri, J.M; Molina, J.M.; Louis, E. (Elsevier BV, 2024-09)

[EN] The surface tension sigma of pure Zn and its temperature coefficient have been measured by means of the maximum bubble pressure technique over the temperature range [Tm, m , Tm+250 m +250 degrees C], where Tm m is the ...
ZnO and CuO crystal precipitation in sintering Cu-doped Ni-Zn ferrites. II. Influence of sintering temperature and sintering time

Barba, Antonio; Clausell, Carolina; Nuño Fernández, Luis; Jarque, Juan Carlos (Elsevier, 2017)

[EN] This paper presents a study of the precipitation of ZnO and CuO crystals during the sintering of Cu-doped Ni-Zn ferrites. The nature of the resulting crystal precipitates were analysed using scanning electron microscopy ...
ZnO-based spinels grown by electrodeposition

Tortosa Jorques, María Dolores; Manjón Herrera, Francisco Javier; Mollar García, Miguel Alfonso; Marí Soucase, Bernabé (Elsevier, 2012-09)

We report on the synthesis of thin films of ZnCo 2O 4 and ZnMn 2O 4 spinels, as well as pure Co 3O 4 and Mn 3O 4 spinels, by means of electrodeposition. Spinel thin films have been analyzed by energy dispersive spectroscopy, ...