low_cost_potentiostat (PassStat)
Project description
A low cost potentiostat circuit to perform electrochemistry experiments with still high performances. Several implementations are proposed. The system may be driven by a Teensy 3.2 or 3.6 card from PJRC (Arduino IDE) or by power supplies, generator and oscilloscope.
A Python software is provide for PC, Macintosh or Linux operation, and an Android application for Bluetooth remote control. The noise resolution may be below 1 pA while the maximum scan rate may attain 8000 V/s.
PassStat prototype and performance curve
Main Features
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Can be driven by a Teensy 3.2 or 3.6 card (low cost option). maximul scan rate 100 V/s
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Alternatively can be driven thanks to 2 power supplies, one generator and one oscilloscope. We used the Analog Discovery 2 from Digilent that offers all these features in a single device at a low price. Maximum scan rate 8000 V/s.
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The gain and bandwidth can be easily adjusted by the user by simply changing a resistance and a capacitance.
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Software
- A Arduino program and a python software allow use with PC, Mac or linux computer
- A Arduino program and an Android application allow driving the system with a smartphone (Android 4 or superior)
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Cyclic voltammetry and Square Wave Voltammetry, two very common techniques are implemented.
Project information
A paper is going to be submitted soon to Hardware X with device description, implementation and operating instructions
Contacts
General questions about project
- Emmanuel Maisonhaute - Sorbonne Université, Paris
Status
Date | Event |
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10-01-2021 | Start working on project. Collecting main specifications. |
30 September 2021