Buscar
Mostrando ítems 21-30 de 406
Cyclic voltammetric behaviour of the O2/O2·- redox couple at a HMDE and its interaction with nisoldipine
(2002)
We have studied the O2/O2·- redox couple on the HMDE in DMSO aprotic media, obtaining optimal conditions of both oxygen concentration and scan rate in order to avoid oscillatory phenomena. By choosing the oxygen concentration ...
Determination of N-acetylcysteine by cyclic voltammetry using modified carbon paste electrode with copper nitroprusside adsorbed on the 3-aminopropylsilica
(2011-09-01)
Copper nitroprusside was formed on aminopropylsilica silica gel (3-AS) surface (SiCuNP) previously prepared following two steps. These materials were thoroughly characterized by Infrared (FTIR) and cyclic voltammetry. The ...
Electrochemical behavior of Ti-Mo alloys applied as biomaterial
(Pergamon-Elsevier B.V. Ltd, 2008-04-01)
Electrochemical investigation on the as-cast Ti-Mo alloys (4-20 Mo wt.%) applied as biomaterials in Na2SO4 and Ringer physiological solutions is reported. Analyses of the open-circuit potential indicated that all alloys ...
Electrochemical behavior of Ti-Mo alloys applied as biomaterial
(Pergamon-Elsevier B.V. Ltd, 2008-04-01)
Electrochemical investigation on the as-cast Ti-Mo alloys (4-20 Mo wt.%) applied as biomaterials in Na2SO4 and Ringer physiological solutions is reported. Analyses of the open-circuit potential indicated that all alloys ...
Effect of hydrogen charging on the stability of SAE 10B22 steel surface in alkaline solutions
(Elsevier B.V., 2005-11-01)
The influence of hydrogen charging into a quenched and tempered boron steel membrane electrode (SAE 10B22) was studied using borate buffer (pH 8.4) and NaOH solutions (pH 12.7), with or without the addition of 0.01 M EDTA. ...
CATHODIC BEHAVIOUR of ANODIZED TITANIUM IN SIMULATED PHYSIOLOGICAL CONDITIONS
(Plapiqui(uns-conicet), 2014)
Estudo da adsorção e oxidação do monóxido de carbono sobre as fases intermetálicas ordenadas Pt-M(M = Mn, Pb, Sb e Sn)
(Universidade Estadual Paulista (Unesp), 2006-05-10)
A oxidação de pequenos compostos orgânicos, tais como: gás natural, metano, propano, metanol e etc., tem gerado um grande interesse para a utilização em células a combustível, pois, o hidrogênio pode ser obtido por reforma ...
Microeletrodos: III. arranjos de microeletrodos, construção e caracterização
(Editora Unesp, 2000-01-01)
Neste trabalho procurou-se descrever detalhadamente o procedimento de preparo de um arranjo de eletrodos com geometria em forma de microdiscos (20,2 < r e < 25,7 mim) e estudar o comportamento eletroquímico desse conjunto ...
Microeletrodos: III. arranjos de microeletrodos, construção e caracterização
(Editora Unesp, 2000-01-01)
Neste trabalho procurou-se descrever detalhadamente o procedimento de preparo de um arranjo de eletrodos com geometria em forma de microdiscos (20,2 < r e < 25,7 mim) e estudar o comportamento eletroquímico desse conjunto ...
Electrochemical behaviour of copper electrode in concentrated sulfuric acid solutions
(Elsevier B.V., 1993-05-01)
The electrochemical behaviour of copper in 6.0 mol 1-1 sulfuric acid at 30°C, was studied by means of the potentiodynamic method. At low potential sweep rates, v < 200 m V s-1, the data reveal that the anodic process is ...