The anodic oxidation of a granular activated carbon (GAC) in NaCl solution has been studied. The influence of the electrocatalyst-anode material, applied current and time of treatment on both the surface chemistry and ...
[EN] The electrochemical copolymerization of aminoterephthalic acid and aniline can be achieved to yield a self-doped material showing electroactivity at physiological pH. The present study focusses on the management of ...
Porcel-Valenzuela, M.; Huerta, Francisco; Morallón, Emilia; Montilla-Jiménez, Francisco(MDPI AG, 2019)
[EN] Dopamine, norepinephrine, and epinephrine neurotransmitters can be detected by
electrochemical oxidation in conventional electrodes. However, their similar chemical structure
and electrochemical behavior makes a ...
[EN] The development of electrocatalysts based on the doping of copper over cobalt spinel supported on a microporous activated carbon has been studied. Both copper-cobalt and cobalt spinel nanoparticles were synthesized ...
[EN] The direct electron transfer (DET) to redox proteins has become a central topic in the development of biotechnological devices. The present work explores the mechanisms of the direct electrochemistry between cytochrome ...
Berenguer Betrián, Raúl; Sieben, J. M.; Quijada Tomás, Cesar; Morallón, Emilia(Elsevier, 2016-12-15)
[EN] In this work, the electrocatalytic performance of Ti/SnO2-Sb(13-x)-Pt-Ru(x) anodes (x = 0.0, 3.25 and 9.75 at.%) towards phenolate elimination has been analyzed and compared to those of conventional Ti/RuO2 and Ti/Co3O4 ...
The conducting self-doping copolymer poly(aniline-co-ABA) preserves its redox activity at pH values as high as 7. This observation was the starting point to synthesize an organic inorganic hybrid composite able to ...
Composite materials made of porous SiO2 matrices filled with single-walled carbon nanotubes (SWCNTs) were deposited on electrodes by an electroassisted deposition method. The synthesized materials were characterized by ...
Tabti, Zakaria; Berenguer, Raúl; Ruiz-Rosas, Ramiro; Quijada Tomás, Cesar; Morallón, Emilia; Cazorla-Amorós, Diego(Electrochemical Society of Japan, 2013-10-05)
Surface oxygen groups play a key role on the performance of porous carbon electrodes for electrochemical capacitors in aqueous media. The electrooxidation method in NaCl electrolyte using a filter press cell and dimensionally ...
[EN] A set of fluoro-functionalized polyaniline conducting polymers was synthesized by cyclic scanning of the potential from acidic solutions containing aniline and 2-fluoroaniline monomers. The monomer feed ratio was ...
The effect of the electrochemical treatment (potentiostatic treatment in a filter-press electrochemical cell) on the adsorption capacity of an activated carbon cloth (ACC) was analyzed in relation with the removal of ...
[EN] The present work deals with the direct electrochemistry of cytochrome c (cyt c) encapsulated within a methyl-modified silica film prepared by the sol-gel method. It was observed that the voltammetric currents of the ...
The electroassisted encapsulation of Single-Walled Carbon Nanotubes was performed into silica matrices (SWCNT@SiO2). This material was used as the host for the potentiostatic growth of polyaniline (PANI) to yield a hybrid ...
Grijalva-Bustamante, G. A.; Evans-Villegas, A. G.; del Castillo-Castro, T.; Castillo-Ortega, M. M.; Cruz-Silva, R.; Huerta, Francisco; Morallón, Emilia(Elsevier, 2016-06-01)
Polypyrrole (PPy) was synthesized by enzyme mediated oxidation of pyrrole using naturally occurring compounds as redox mediators. The catalytic mechanism is an enzymatic cascade reaction in which hydrogen peroxide is the ...
[EN] Poly(3,4-ethylenedioxythiophene) doped with poly-(styrenesulfonate), PEDOT¿PSS, films synthesized by electrochemical methods can be considered as poor electrocatalyst for the oxidation of ferrocene in aqueous solution. ...
Rivero Torre, Omar; Sanchis, Carlos; Huerta, Francisco; Morallón, Emilia(Royal Society of Chemistry, 2012)
Ascorbic acid molecules in either acid or conjugate base forms have been oxidized on self-doping carboxylated polyaniline thin films. The kinetic model proposed by Bartlett et al. has been successfully applied to the ...
Berenguer Betrián, Raúl; Sieben, Juan Manuel; Quijada Tomás, Cesar; Morallón, Emilia(American Chemical Society, 2014-12-02)
Different Pt- and Ru-doped Ti/SnO2–Sb electrodes were synthesized by thermal decomposition. The effect of the gradual substitution of Sb by Ru in the nominal composition on the physicochemical and electrochemical properties ...
[EN] The electrochemical copolymerization of aminoterephthalic acid (ATA) and o-aminophenol (OAP) was carried out on platinum electrodes in acidic medium. The obtained material, poly (ATA-co-OAP), can be deposited by cyclic ...
[EN] The chemical composition of a LaMnO3 perovskite was modified sequentially by an improved sol-gel method to include cobalt centers in some B sites formerly occupied by Mn. In this way, a representative set of materials ...
[EN] In this study, the phosphonation of a polyaniline (PANI) backbone was achieved in an acid medium by electrochemical methods using aminophenylphosphonic (APPA) monomers. This was done through the electrochemical ...