Abstract
A potentiostatic circuit for low-power applications in the range of ±3.3 V and ±13.75 mA is developed. The device achieves a full-scale resolution of ≈ 1.6 mV and ≈ 1 μA - sufficient for a wide range of electroanalytical experiments. For controlling the potentiostat a Python-based graphical user interface (GUI) is developed and implemented in our open-source electrochemistry software Polarographica. This enables electroanalytical experiments such as cyclic voltammetry (CV) and chronoamperometry (CA) in a live-graphing environment at an operational convenience similar to commercial devices, combined with a powerful tool for subsequent data analysis. The performance of our potentiostat is validated by the excellent agreement of CV and CA data acquired with five different in-house built devices and a commercial Gamry Reference 620. Finally, we provide a printed circuit board (PCB) design of our device as an Arduino shield that requires only a minimum of additional components. This powerful open-source tool is suitable for customized electrochemical experiments at material costs of less than 40 €.
Original language | English |
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Article number | 143119 |
Journal | Electrochimica Acta |
Volume | 469 |
Number of pages | 8 |
ISSN | 0013-4686 |
DOIs | |
Publication status | Published - 2023 |
Keywords
- Arduino-Uno shield
- Chronoamperometry
- Cyclic voltammetry
- Electrochemical analysis software
- Microcontroller based potentiostat for low power applications