Abstract
An open-source electrochemical measurement system called ECHAN (ElectroCHemical ANalyzer) has been developed with Visual Basic Language. This software enables automated measurement of electrode samples with macro language successively through various electrochemical methods. Cyclic voltammetry, rotating ring-disk voltammetry, potential step chronoamperometry, current vs. rotation speed measurement and multipotentiostat measurement are all carried out with this single software. It is also equipped with a searching function by keywords and measurement conditions. After measurement, data can be processed by FFT (Fast Fourier Transform) low pass filter, smoothing by the simple moving average or the Savitzky-Golay method and operations between two data sets. It makes possible the evaluation of electro-catalysis by the Koutecky-Levich analysis, the Levich analysis, the electron number concerned with oxygen reduction reaction, chronoamperometry analysis by Cottrell's equation, coulomb number calculation and the Tafel analysis. Since an A/D board is used for data sampling, this program is applicable to a conventional potentiostat, which is usually connected to an X-Y recorder.
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