Now showing items 1-10 of 15
Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
The aim of this work was to study the effect of prolonged potentiodynamic cycling (PPC) on the conducting properties of poly(oaminophenol) (POAP) film electrodes. PPC reduces strongly the electron and ion transport rates ...
Charge transfer mechanism of WO3/TiO2 heterostructure for photoelectrochemical water splitting
The present study shows how electronic parameters (e.g. band gap energy, band edge positions) on semiconductors affect photoelectrochemical activity in simulated solar light using WO3, TiO2 and WO3/TiO2 as model systems. ...
Charge accumulation and electron transfer kinetics in Geobacter sulfurreducens biofilms
(Royal Society of Chemistry, 2012-03)
Electroactive bacteria can use a polarized electrode as final electron acceptor, allowing the use of electrochemical techniques for a very accurate quantification of its respiration rate. Biofilm cell respiration has been ...
Deactivation of poly(o-aminophenol) film electrodes by storage without use in the supporting electrolyte solution and its comparison with other deactivation processes. A study employing EIS
Abstract The effect of storage time without use (STWU) in the supporting electrolyte solution on the charge-trans- port parameters of poly(o-aminophenol) (POAP) film electrodes was studied by electrochemical impedance ...
An impedance study about the effect of pH on the electron transport rate at poly(o-aminophenol) film electrodes
(Bentham Science Publishers, 2014-06)
Impedance measurements on poly(o-aminophenol) (POAP) film electrodes in solutions of different pH were carried out. Impedance spectra were interpreted in terms of the modified electron hopping model described in F.J. ...
Effect of Aging on the Electrochemical Performance of LSM-YSZ Cathodes
(Electrochemical Society, 2015-06-12)
Investigations of degradation mechanisms of solid oxide fuel cells are crucial for achieving a widespread commercialization of the technology. In this work, electrochemical impedance spectroscopy (EIS) was applied for ...
Nanomagnet coupled to quantum spin Hall edge: An adiabatic quantum motor
(Elsevier Science, 2015-11)
The precessing magnetization of a magnetic islands coupled to a quantum spin Hall edge pumps charge along the edge. Conversely, a bias voltage applied to the edge makes the magnetization precess. We point out that this ...
On the Mechanism of the Iodide–Triiodide Exchange Reaction in a Solid-State Ionic Liquid
(American Chemical Society, 2017-06)
Efficient charge transport has been observed in iodide-based room-temperature ionic liquids when doped with iodine. To investigate preferred pathways for the iodide (I-)-to-triiodide (I3 -) exchange reaction and to clarify ...
Photoelectrochemical properties of poly(terthiophene) films modified with a fullerene derivative
(Elsevier Science SaLausanneSuíça, 2006)