Filtros digitais por transformadas de Fourier aplicados em eletroquímica Digital filters based on Fourier transforms for application in electrochemistry

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2013
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Abstract
The electrochemical properties of micro and nano-electrodes are widely investigated due to their low faradaic and capacitive currents, leading to a new generation of smart and implantable devices. However, the current signals obtained in low-dimensional devices are strongly influenced by noise sources. In this paper, we show the evaluation of filters based on Fast Fourier Transform (FFT) and their implementation in a graphical user interface (GUI) in MATLAB®. As a case study, we evaluated an electrochemical reaction process of charge transfer via outer-sphere. Results showed successful removal of most of the noise in signals, thus proving a promising tool for low-scale measurement.
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Authors Liang, Ricardo Nantes;Gonçalves, Wagner Diego;Martins, Marccus Victor Almeida;Crespilho, Frank Nelson;
Journal química nova
Year 2013
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000100027
Keywords
chemistry Education Technology (General) Engineering (General). Civil engineering (General) Industrial electrochemistry Electrical engineering. Electronics. Nuclear engineering Science physics general works education (general) mathematics

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