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Electrochemical Reduction of Oxygen Using a Metal–Organic Complex of Cu2+
(MDPI, 2019-04)
A biphenyl-based copper complex was evaluated as electrocatalyst for the oxygen reduction reaction (orr), for a possible application as cathode material in fuel cells. To carry out this evaluation, the complex was supported ...
Electrochemical nitrate reduction of brines: Improving selectivity to N2 by the use of Pd/activated carbon fiber catalyst
(Pergamon-Elsevier Science Ltd, 2021-09)
Contamination of water by nitrate has become a worldwide problem, being high levels of this ion detected in the surface, and groundwater, mainly due to the intensive use of fertilizers, and to the discharge of not properly ...
Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
(IWA Publishing, 2021-07)
This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH ...
Comparison of different electrode materials for the nitrate electrocatalytic reduction in a dual-chamber cell
(Elsevier, 2020-10)
Nitrogen compounds in water are mainly associated to the use of fertilizers and to the discharge of industrial wastewater from tanneries, food and textile industry. The presence of high nitrate concentration in water can ...
A self-assembled organic/metal junction for water photo-oxidation
(American Chemical Society, 2019-04)
We report the in situ self-assembly of TTF, TTF ·+ , and BF 4 - or PF 6 - into p-type semiconductors on the surface of Pt microparticles dispersed in water/acetonitrile mixtures. The visible light photoactivation of these ...
Growth and electrochemical stability of a layer-by-layer thin film containing tetrasulfonated Fe phthalocyanine
(Elsevier Science SA, 2020-11)
Devices based on the functionalization of surfaces with iron phthalocyanine could have potential applications in sensors as well as in clean energy generation. In this work we studied the growth and electrochemical stability ...
H2O2 sensing enhancement by mutual integration of single walled carbon nanohorns with metal oxide catalysts: The CeO2 case
(Elsevier Science Sa, 2017-02)
The importance of sensing hydrogen peroxide (H2O2) is due to its ubiquity, being extensively used in industry and also being a biologically relevant side-product of several enzymatic processes. Electrochemical sensing is ...
Evaluation of different Ni-semiconductor composites as electrodes for enhanced hydrogen evolution reaction
(Royal Society of Chemistry, 2020-08)
The use of earth-abundant materials for designing efficient and stable electrocatalysts is of paramount importance to facilitate large-scale production of hydrogen. In this work we developed a new series of electrodes based ...
Powering Up the Oxygen Reduction Reaction through the Integration of O 2 -Adsorbing Metal–Organic Frameworks on Nanocomposite Electrodes
(American Chemical Society, 2018-10)
Oxygen reduction reaction (ORR), essential in many energy conversion devices, takes particular relevance in facing the increasing global demand for clean energy sources and vectors. In this context, desirable features for ...
Enhanced performance of nano-electrocatalysts of Pd and PdCo in neutral and alkaline media
(Springer, 2019-01-31)
Pd and PdCo nanostructures are synthesized by a soft-template route to be applied as electrocatalysts. Distinctive morphologies are obtained: nanowire-like structures, with mean diameter d = 33 nm (PdNW), forming an entangled ...