Dimensionally Stable Anodes
Mostrando 1-9 de 9 artigos, teses e dissertações.
-
1. Eletrodegradação de Ponceau 2R utilizando ânodos dimensionalmente estáveis e Ti/Pt
This paper reports the electrochemical degradation of the azo dye Ponceau 2R under galvanostatic electrolysis in the 1 to 200 mA cm-2 range at room temperature using dimensionally-stable anodes of oxygen (DSA-O2), chlorine (DSA-Cl2) and a titanium electrode of platinum coated with platinum oxide (Ti/Pt). The methodology applied was efficient for removing the
Quím. Nova. Publicado em: 2013
-
2. DESENVOLVIMENTO DE METODOLOGIAS ELETROQUÍMICAS PARA MONITORAMENTO AMBIENTAL DA RIFAMPICINA E SUA ELETRODEGRADAÇÃO PELA GERAÇÃO DE AGENTES OXIDANTES IN SITU. / DEVELOPMENT OF METHODOLOGIES FOR ELECTROCHEMICAL ENVIRONMENTAL MONITORING OF YOUR E RIFAMPICIN ELETRODEGRADAÇÃO GENERATION BY OXIDIZING AGENTS IN SITU.
The drugs are considered pollutant emergent, a time that its presence in aquatic environments is each bigger time. This research has as objective to develop electrochemical methodologies that allow to monitor and to degrade the rifampicin in water of public supplying. In the stage of monitor a voltammetric method was developed using a biosensor of chitosan f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2010
-
3. Acid Black 210 dye electrooxidation in the presence of chloride ions / Eletro-oxidação do corante preto ácido 210 na presença de íons cloreto
The electrochemical degradation of the azo dye Acid Black 210 (AB210) using dimensionally stable anodes of composition Ti/Ir0,10Sn0,90O2 and Ti/Ir0,30Sn0,70O2 prepared by thermal decomposition of polymeric precursors was studied. The effects of the presence and concentration of chloride, electrode composition, current density, and electrolysis time on the el
Publicado em: 2009
-
4. Tratamento de efluentes provenientes de curtumes utilizando os processos eletroquímico e fotoeletroquímico / Treatment of tannery wastewaters using electrochemical and photoelectrochemical process
In this work the degradation of tannery wastewaters using electrochemical, photocatalytic and photoelectrochemical processes was studied. Wastewaters collected in an industry and solutions prepared in the laboratory, which simulated real wastewaters, were used in these studies. Effects of the anodic material, current density, presence of sulfate and chloride
Publicado em: 2009
-
5. Aplicação da teoria ac de eletrodos porosos na investigação da cinética de dispositivos eletrocatalíticos / Application of ac theory for porous electrode in the investigation in the kinetics of electrocatalytic devises
This work consists in using Electrochemical Impedance Spectroscopy (EIS) in the research of various electrocatalytic materials. The porous electrode model is a very promising approach to treat the frequency responses of Dimensionally Stable Anodes (DSA®). Once the application of the model is established, it is possible to obtain important kinetic informatio
Publicado em: 2008
-
6. Montagem de um sistema para medidas galvanostáticas simultâneas em mais de uma célula
The present work deals with the design and construction of an equipment for muti-cell accelerated stability test measurements (AST) of dimensionally stable anodes (DSA). The equipment was built using only components that were available in the laboratory. Measurements of three electrochemical cells can be performed using the developed software. The acquisitio
Química Nova. Publicado em: 2007-10
-
7. Espectroscopia de impedância eletroquímica aplicada ao estudo das reações heterogêneas em ânodos dimensionalmente estáveis
This paper discusses different aspects related to the application of electrochemical impedance spectroscopy (EIS) in the study of heterogeneous electrochemical reactions occurring on Dimensionally Stable anodes (DSA®). The most relevant aspects of the semiconductor/electrolyte interface, the application of the EIS classical equivalent circuit approach and t
Química Nova. Publicado em: 2006-07
-
8. Ethanol Electrooxidation with dimensionally stable anodes, DSA®, in NaCl medium / Eletrooxidação do etanol na presença de cloreto de sódio em eletrodos de óxidos de rutênio e irídio
In this work, it was investigated the electrocatalytic properties of oxides electrodes denominated dimensionally stable anodes, DSA®, in NaCl medium, applying them for ethanol oxidation. For this propose, many experimental parameters nave been investigated: the modulator oxide, changes in the preparation method of the electrode and pH changes of the solutio
Publicado em: 2005
-
9. Cyclic voltammetric behaviour of dimensionally stable anodes in the presence of C1 - C3 aldehydes
Este trabalho descreve o estudo voltamétrico de três aldeídos alifáticos: formaldeído, acetaldeído e propionaldeído sobre ânodos do tipo Dimensionalmente Estáveis (ADE®). Eletrodos com composição Ti/Ru0.3M0.7O2 (onde M = Ti ou Sn) foram utilizados em solução de 0.5 mol dm-3 H2SO4 usando uma célula do tipo filtro-prensa. Ambos os eletrodos apre
Journal of the Brazilian Chemical Society. Publicado em: 2003-08