Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por palabra clave "Electrochemical impedance spectroscopy"

Mostrando ítems 1-20 de 44

Página siguiente

A Deep Insight into Different Acidic Additives as Doping Agents for Enhancing Proton Conductivity on Polybenzimidazole Membranes

Escorihuela, Jorge; Garcia-Bernabe, Abel; Compañ Moreno, Vicente (MDPI AG, 2020-06)

[EN] The use of phosphoric acid doped polybenzimidazole (PBI) membranes for fuel cell applications has been extensively studied in the past decades. In this article, we present a systematic study of the physicochemical ...
A Label-Free Interdigitated Microelectrodes Immunosensor for Pesticide Detection

Marrakchi, Mouna; Campos Sánchez, Inmaculada; Helali, S.; Mejri, N.; Soto Camino, Juan; González Martínez, Miguel Ángel; Hamdi, M.; Abdelghani, A. (American Scientific Publishers, 2011)

[EN] A sensitive, simple and label-free immunosensor for atrazine detection was developed. The immunosensor was based on antibody physisorption as immobilization technique. This technique was proposed as a cost-effective ...
An Electrochemical Impedance Spectroscopy-Based Technique to Identify and Quantify Fermentable Sugars in Pineapple Waste Valorization for Bioethanol Production

Conesa Domínguez, Claudia; García Breijo, Eduardo; Loeff, Edwin; Seguí Gil, Lucía; Fito Maupoey, Pedro; Laguarda Miró, Nicolás (MDPI, 2015-09)

Electrochemical Impedance Spectroscopy (EIS) has been used to develop a methodology able to identify and quantify fermentable sugars present in the enzymatic hydrolysis phase of second-generation bioethanol production from ...
Assessment of the roughness factor effect and the intrinsic catalytic activity for hydrogen evolution reaction on Ni-based electrodeposits

Herraiz Cardona, Isaac; Ortega Navarro, Emma María; Garcia-Anton, Jose; Pérez-Herranz, Valentín (Elsevier, 2011-08)

The hydrogen evolution reaction (HER) was studied in 30 wt.% KOH solution at temperatures ranging between 30 and 80 °C on three type of electrodes: (i) rough pure Ni electrodeposits, obtained by applying a large current ...
Caracterización y estudio del comportamiento electroquímico de aleaciones biomédicas de titanio

Dalmau Borrás, Alba (Universitat Politècnica de València, 2013-02-25)

[ES] Se investiga el comportamiento frente a la corrosión de nuevas aleaciones de titanio mediante técnicas electroquímicas en condiciones similares al cuerpo humano empleando una disolución de fosfatos (PBS) y trabajando ...
Characterization of polypyrrole/phosphotungstate membranes by electrochemical impedance spectroscopy

Bonastre Cano, José Antonio; Molina Puerto, Javier; Galvan, J. C.; Cases Iborra, Francisco Javier (Elsevier, 2014-01)

The aim of this study was to design and prepare multifunctional PPy/PW12O403- membranes useful for the development of smart textile fabrics and wastewaters treatments based on the application of electrochemical techniques. ...
Characterization of thermal oxide films formed on a duplex stainless steel by means of confocal-Raman microscopy and electrochemical techniques

Sánchez Tovar, Rita; Leiva García, Rafael; García Antón, José (Elsevier, 2015-02-02)

In this work oxide films have been developed on the surface of a duplex stainless steel (UNS 1.4462) using high temperature confocal microscopy to follow their growth. The characteristics of these oxide films have been ...
Chemical and electrochemical study of fabrics coated with reduced graphene oxide

Molina Puerto, Javier; Fernández Sáez, Javier; Del Río García, Ana Isabel; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (Elsevier, 2013-08-15)

Polyester fabrics coated with reduced graphene oxide (RGO) have been obtained and later characterized by means of chemical and electrochemical techniques. X-ray photoelectron spectroscopy showed a decrease of the oxygen ...
Desarrollo de MOFs de cobalto para su aplicación como electrocatalizadores en una pila de combustible de membrana de intercambio protónico

Río Rodríguez, José Luis del (Universitat Politècnica de València, 2022-09-06)

[ES] Los seres humanos usamos en el día a día combustibles fósiles, como el carbón, el petróleo y el gas natural, para la generación de calor y electricidad. Sin embargo, estos recursos son limitados y su impacto en el ...
Detección de daños por congelación en limones usando Espectroscopía de impedancia electroquímica

Ochandio Fernández, Adrián (Universitat Politècnica de València, 2022-10-14)

[ES] El limón es el cítrico más sensible al frío. Por lo tanto, es de vital importancia detectar y evitar temperaturas que puedan dañar el fruto tanto cuando aún está en el árbol como en su posterior comercialización. Con ...
Development of a dielectric spectroscopy technique for the determination of key bichemical markers of meat quality

Castro Giráldez, Marta; Dols, Laura; Toldrá Vilardell, Fidel; Fito Maupoey, Pedro (Elsevier, 2011-07-01)

[EN] Dielectric measurements of different standard solutions (nucleotides, nucleosides, lactic acid and myoglobin) were assayed simulating the concentrations of these substances in early postmortem meat. These assays were ...
Diseño de un circuito para la simulación del comportamiento de tejido celular de la manzana fuji.

Pérez Balastegui, José Antonio (Universitat Politècnica de València, 2021-10-13)

[ES] El presente Trabajo de Fin de Grado consiste en la implementación de un circuito eléctrico equivalente empleando la técnica de Espectroscopias de Impedancias Electroquímicas (EIS) con el fin de caracterizar el estado ...
Double-template fabrication of three-dimensional porous nickel electrodes for hydrogen evolution reaction

Herraiz-Cardona, Isaac; Ortega Navarro, Emma María; Vázquez-Gómez, Lourdes; Pérez-Herranz, Valentín (PERGAMON-ELSEVIER SCIENCE LTD, 2012-02)

[EN] Three-dimensional (3D) porous nickel structures were fabricated via a double-template electrochemical deposition process. The construction of the foam structures was achieved by means of a hydrogen bubble dynamic ...
Early Detection of Freeze Damage in Navelate Oranges with Electrochemical Impedance Spectroscopy

Serrano-Pallicer, Emma; Muñoz-Albero, Marta; Pérez Fuster, Clara; Masot Peris, Rafael; Laguarda-Miro, Nicolas (MDPI AG, 2018)

[EN] The early detection of freeze damage in Navelate oranges (Citrus sinensis L. Osbeck) was studied using electrochemical impedance spectroscopy (EIS), which is associated with a specific double-needle sensor. The objective ...
Efecto del tratamiento térmico y del potencial en el comportamiento electroquímico de la aleación biomédica CoCrMo en medios fisiológicos

Valero Vidal, Carlos (Universitat Politècnica de València, 2011-10-20)

Resumen: Un estudio metalográfico y técnicas electroquímicas (curvas potenciodinámicas, ensayos potenciostáticos a diferentes potenciales y EIS) se utilizan para caracterizar la aleación CoCrMo después de tres tratamientos ...
Electrochemical characterization of a NiCo/Zn cathode for hydrogen generation

Herraiz-Cardona, Isaac; Ortega Navarro, Emma María; Vázquez-Gómez, Lourdes; Pérez-Herranz, Valentín (PERGAMON-ELSEVIER SCIENCE LTD, 2011-09)

[EN] Hydrogen is considered to be the most promising candidate as a future energy carrier. One of the most used technologies for the electrolytic hydrogen production is alkaline water electrolysis. However, due to the high ...
Electrochemical impedance spectroscopy of membranes with nanofluidic conical pores

Ramirez Hoyos, Patricio; Cervera, Javier; Nasir, Saima; Mubarak, Ali; Ensinger, Wolfgang; Mafe, Salvador (Elsevier, 2023-11)

[EN] Electrochemical impedance spectroscopy (EIS) constitutes a useful tool in membrane science and technology because it provides valuable structural and functional information. The different arcs observed in the impedance ...
Electrochemical properties of composite cathodes for La0.995Ca0.005NbO4-delta-based proton conducting fuel cells

Solis Díaz, Cecilia; Vert Belenguer, Vicente Bernardo; Fabuel Robledo, María; Serra Alfaro, José Manuel (Elsevier, 2011-11-15)

[EN] The electrochemical properties of mixed-conducting ceramic-ceramic (cer-cer) composites for proton-conducting solid oxide fuel cells (PC-SOFCs) based on La0.995Ca0.005NbO4-delta (LCN) have been investigated. Different ...
Electrochemical properties of PSFC-BCYb composites as cathodes for proton conducting solid oxide fuel cells

Vert Belenguer, Vicente Bernardo; Solis Díaz, Cecilia; Serra Alfaro, José Manuel (Wiley-VCH Verlag, 2010-08-17)

[EN] The electrochemical properties of mixed conducing ceramic¿ceramic composites for proton conducting fuel cells have been investigated. Different ratios of Pr0.58Sr0.4Fe0.8Co0.2O3¿¿¿BaCe0.9Yb0.1O3¿¿ composites have been ...
Electrochemical synthesis of polypyrrole doped with graphene oxide and its electrochemical characterization as membrane material

Molina Puerto, Javier; Bonastre Cano, José Antonio; Fernández Sáez, Javier; Del Río García, Ana Isabel; Cases Iborra, Francisco Javier (Elsevier, 2016-07-12)

Polypyrrole (PPy) doped with graphene oxide (GO) has been electrochemically obtained by potentiostatic synthesis and its electrochemical behavior as membrane material has been studied for the first time. Fourier transform ...