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Electrocatalitic activity of platinum deposited on carbon functionalized with s...
Capelo, Anabela; Esteves, M. Alexandra; Sá, A. I. Correia de; Rangel, C. M.Results are presented for Pt deposited on 4-aminobenzenesulphonic acid-functionalized carbon, Pt/C_ABSA. Vulcan XC-72R was functionalized in order to influence catalyst dispersion and decrease the resistance of three phase boundary, by introducing sulphonic groups and lessening the amount of Nafion® added to the catalyst layers. Electrochemical characterization of the supported catalyst was done in a 0.5 M H2SO...
Electrochemical behaviour of ionic liquid functionalized carbon supported Pt-Ru...
Esteves, M. Alexandra; Sá, A. I. Correia de; Rangel, C. M.Ionic liquid (IL) functionalized carbon supported nanocatalysts, including platinum-ruthenium catalysts, have been under investigation to achieve better catalytic performance on polymer electrolyte membrane fuel cells. Ionic liquids have particular physical properties, which usually improve the stabillity and dispersion of metal nanosized particles, providing an increase of the electrochemical active surface ar...
Enhancing Pt electrocatalytic activity by surface functionalization of carbon s...
Capelo, Anabela; Esteves, M. Alexandra; Sá, A. I. Correia de; Rangel, C. M.Preliminary results are presented for Pt deposited on 4-aminobenzenesulphonic acid-functionalized carbon, Pt/C_ABSA. Vulcan XC-72R was functionalized with the objective of influencing the dispersion of catalyst nanoparticles and to decrease the resistance of three phase boundaries, by introducing sulphonic groups. Electrochemical characterization of the supported catalyst was done in a 0.5 M sulphuric acid solu...
Progress in the catalysed hydrolysis of sodium borohydride as a gydrogen source...
Fernandes, Vitor R.; Ferreira, M. J.; Esteves, M. Alexandra; Pinho, A. M. F. R.; Rangel, C. M.
A tripodal hydroxypyriminone-based compund and aluminium decorporation
Chaves, S.; Marques, S.; Areias, Laurinda; Esteves, M. Alexandra; Gano, L.; Santos, M. Amélia; Capelo, Anabela
Synthesis and complexation properties of a new 2-aminoalkylamino-4,5-dihydroxyp...
Esteves, M. Alexandra; Capelo, Anabela; Areias, Laurinda; Chaves, S.; Santos, M. Amélia
Organic resins functionalized with chiral salen complexes as heterogeneous cata...
Esteves, M. Alexandra; Santos, Célia; Guerreiro, A. Margarida; Baleizão, Carlos
Synthesis, spectroscopy, photophysics and thermal behaviour of stilbene-based t...
Gigante, Bárbara; Esteves, M. Alexandra; Pires, N.; Davies, Matthew L.; Douglas, Peter; Fonseca, Sofia M.; Burrows, Hugh D.; Pina, JoãoNovel stilbene-based triarylamines with dehydroabietic acid methyl ester moieties have been synthesised by palladium catalysed C–N coupling reactions. The presence of the bulky dehydroabietic acid group increases solubility, hinders crystallisation and permits their sublimation while preserving their electronic and optical characteristics. This makes them good candidates for various molecular electronic applica...
Chiral salen complexes immobilized on organic resins as heterogeneous catalysts...
Esteves, M. Alexandra; Santos, Célia; Guerreiro, A. Margarida; Baleizão, Carlos; Gigante, Bárbara
New heterogeneous chiral vanadium (V) salen catalysts for the strecker reaction
Esteves, M. Alexandra; Oliveira, João C.; Guerreiro, Ana Maria; Santos, Célia; Baleizão, Carlos
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