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Development of Multi-Channel Software Platform Capabilities for Single-Channel Potentiostats using MATLAB Programming


Potentiostats are one of the fundamental instruments used to study electrochemical reactions as they enable researchers to delve deeper into reaction mechanisms and electron kinetics between redox species of interest. Because multi-channel potentiostats are often costly investments, this work discusses the plausibility of self-developing more affordable single-channel potentiostats as an efficacious alternative option. In this work, I discuss the process and results of self-programming multi-channel capabilities onto software designed for a single-channel potentiostat (Emstat3 from PalmSens BV�) using the manufacturer-provided software development kit with MATLAB� programming. Successful implementation of the multi-channel functionality was demonstrated within this work as up to four connected potentiostats were able to run separate, real-time measurements on different experimental systems simultaneously. Obtained data from 50 uM and 500 uM concentrations of Zobell’s solution electrochemical cells, a dummy cell, and an insulated resistor using the self-developed software on MATLAB is reported. Within this work, the linear sweep voltammetry (LSV), cyclic voltammetry (CV), single-step chronoamperometry (CA), and open circuit potentiometry (OCP) functions of the potentiostat were experimented with. Furthermore, the acquired data was then compared to that from a larger, more expensive potentiostat alternative (Gamry Instruments Interface 1010B) to gauge its accuracy and validity.

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