APARATO ELETROQUÍMICO PARA SISTEMA DE AQUISIÇÃO DE DADOS MULTICANAL COM RESOLUÇÃO ESPAÇO-TEMPORAL
AUTOR(ES)
Nagao, Raphael, Nascimento, Melke A., Varela, Hamilton
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2015-01
RESUMO
Spatiotemporal pattern formation in reaction-transport systems takes place spontaneously when the system is kept far from thermodynamic equilibrium. Targets, reaction fronts, waves, spirals, spots and stripes are some typical examples of selforganized structuring. In electrochemical systems, monitoring spatiotemporal patterns of potential in the solid/liquid interface can be done by the use of equally distributed microprobes located close to the working electrode. However, the physical size of each probe can limit the spatial resolution and alter mass transport properties. In contrast, the direct measurement of discrete electrodes does not suffer from this limitation and allows the accurate manipulation of the spatial coupling through changes in resistors connected to the electric circuit. In this paper, the development of an electrochemical setup for multichannel data acquisition with spatiotemporal resolution is described, especially to monitor low levels of currents usually observed in the electro-oxidation of small organic molecules.
Documentos Relacionados
- Vigilância espaço-temporal com superfícies acumuladas
- Um banco de dados espaço-temporal para desenvolvimento de aplicações em sistemas de informação geografica
- Metodologia espaço-temporal para a análise de antenas impressas
- Variabilidade espaço-temporal em mapas de produtividade.
- Análise espaço-temporal da evapotranspiração de referência para Minas Gerais