[EN] Proton conductivity behavior was studied in a family of hexacyanocobaltates with divalent transition metals (II), HCCMs. The HCCMs, with molecular formula M3[Co(CN)6]2-xH2O (where M = Ni, Co, Fe, Mn and Cd), had cubic ...
Maria Xavier, Jewel Ann; Fuentes, Isabel; Nuez-Martínez, Miquel; Kelemen, Zsolt; Andrio, Andreu; Viñas, Clara; Compañ, Vicente; Teixidor, Francesc(The Royal Society of Chemistry, 2022-08-04)
[EN] Over the years, extensive research has been carried out to optimize the oxygen evolution reaction (OER) by adopting different techniques as well as catalysts. Conducting organic polymers such as PEDOT have been employed ...
Payá Herrero, Jorge; Freni, A.; Corberán Salvador, José Miguel; Compañ Moreno, Vicente(ECOLE POLYTECHNIQUE MONTREAL, C P 6079, SUCC CENTRE-VILLE, MONTREAL, CANADA, PQ, H3C 3A7, 2012)
[EN] In this paper, the hydriding kinetics of a LaNi5 alloy have been measured with a thermo-gravimetric system. The rate controlling
steps have been analyzed. In the ¿+ß phase, a first order Johnson-Mehl-Avrami model ...
[EN] In this work, we report the preparation of Nafion membranes containing two different nanocomposite MF-4SC membranes, modified with polyaniline (PANI) by the casting method through two different polyaniline infiltration ...
[EN] Novel blend membranes have been prepared from Chitosan (CH), Pectin (PEC) and their mixtures. The obtained samples were cross-linked and sulfonated before characterization. The results show that CH/PEC membranes display ...
[EN] The study of proton conductivity processes has received increasing attention in the past decades due to their potential applications in fields such as electrochemical devices and fuel cells. Despite the high number ...
Antoni Munar; Andrio, Andreu; Iserte Nebot, María Rosa; Compañ Moreno, Vicente(Elsevier, 2011-08)
Ionic conductivity, diffusion coefficients, mobility and ionic concentration for lithium salts dissolved in polymer electrolytes are determined by the modeling of the dielectric loss and spectra. Cation and anion diffusion ...
[EN] A series of proton exchange membranes based on polybenzimidazole (PBI) were prepared using the low cost ionic liquids (ILs) derived from 1-butyl-3-methylimidazolium (BMIM) bearing different anions as conductive fillers ...
García Bernabé, Abel; Rivera-Sancho, Angel; Granados; Adrián; Luis, Santiago V.; Compañ Moreno, Vicente(Elsevier, 2016-09-20)
The ionic transport of five supported ionic liquid-like phases (SILLPs) based on 1-butyl imidazolium ion covalently attached to a polymeric matrix has been analysed by means of electrochemical impedance spectroscopy (EIS) ...
[EN] The relaxation behaviour of coextruded linear low-density polyethylene (LLDPE) films, prepared from copolymers of ethylene-1-octene, is reported. The spectra, expressed in terms of loss tan delta, present a gamma ...
Barjola Ruiz, Arturo(Universitat Politècnica de València, 2023-05-03)
[ES] El desarrollo de membranas poliméricas capaces de actuar como electrolito en pilas de combustible tipo PEMFC a temperaturas intermedias constituye uno de los principales retos para conseguir la generación eficiente ...
Hernández, S. I.; del Castillo, L.F.; del Castillo, Roxana M.; Garcia-Bernabe, Abel; Compañ Moreno, Vicente(Elsevier, 2023-02-15)
[EN]
A fractal Fokker-Planck formalism applied to the dielectric relaxation in glass forming liquids is proposed. This formalism is a modality of the generalized equation of Langevin on the use of fractional-time derivatives ...
Compañ Moreno, Vicente; Aguilella-Arzo, Marcel; Edrington, Timothy B.; Weissman, Barry A.(Lippincott Williams & Wilkins, 2016)
[EN] Purpose. The main goal of this current work is to use an updated calculation paradigm, and updated boundary conditions, toprovidetheoreticalguidelinestoassisttheclinicianwhosegoalistoimprovehisorherscleralgaspermeab ...
The modification of Nafion membranes with polyaniline (PAni) has been studied as an alternative for reducing methanol crossover in direct methanol fuel cells (DMFC). The modification has been performed by directly polymerizing ...
[EN] Flat hybrid membranes composed of polyetherimide (PEI) as matrix and zeolitic imidazolate frameworks (ZIFs) as fillers at concentrations of 10 and 20 wt% were prepared. Apparent permeability coefficient and apparent ...
Novel nanocomposite membranes were prepared by infiltration of a blend of sulfonated PEEK (SPEEK) with polyvinyl alcohol (PVA), using water as solvent, into electrospun nanolibers of SPEEK blended with polyvinyl butyral ...
Novel polyelectrolyte membranes were prepared from pure solutions of alginate (Alg), carrageenan (Car) and their mixtures. The films were crosslinked and sulfonated and then, characterized by several techniques: ionic ...
The electrospinning approach is an easy and useful method to fabricate porous supports with tailored properties for the preparation of impregnated membranes with enhanced characteristics. Therein, this technique was used ...
[EN] Methanol crossover through polymer electrolyte membranes
is a critical issue and causes an important reduction of per-
formance in direct methanol fuel cells (DMFCs). Measuring
the evolution of CO
2
gas in the ...
[EN] The oxygen transmissibility · (DklL.v) and permeability (Dk) in sorne disposable hydrogel contact lenses of the European market have been studied. These contact lenses were: Acuvue (Vistakon), NewVues (Ciba Vision) ...