High accuracy potentiostat with wide dynamic range and linearity

Toprak, S.; Vural, Revna Acar; Batur, Okan Zafer

doi:10.1016/j.aeue.2021.154018

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…Electrolysis is an electrochemical reaction or process in which an electrical signal is produced. The assembly of the electrode and supercapacitor is studied to study the electrochemical phenomenon at room temperature (27 °C) [28]. The Charging / Discharging are measured for different potentials in 1M KOH electrolyte.…”

Section: Charge-discharge Measurementmentioning

confidence: 99%

Cobalt Hydroxide Nanoparticles: Preparation, Synthesis, Characterization and Application in Supercapacitor

Naeem¹,

Patil²,

Shinde³

et al. 2023

Preprint

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Supercapacitors can be useful in many fields of modern technology due to their high energy storage capacity and fast charge-discharge cycle. It is replacing conventional electrical energy storage devices such as capacitors and batteries. The supercapacitor electrodes are efficient for sustainable energy storage and conversions due to their long lifespan and high cyclic rate. Recently, supercapacitors are used in every field of technology like transportation, consumer electronics, electrical instruments, wearable and portable devices, etc. Cobalt hydroxide thin films were prepared by the electrochemical deposition of CoCl2, Co(NO3)2, and Co(OAc)2 onto stainless steel (SS) substrate. The cobalt-based chemical compounds of 0.1M electrolyte solution is prepared in 100ml double distilled water at room temperature. Further, structural, morphological and capacitive properties were studied. In addition, the electrochemical characteristics of the obtained cobalt hydroxide thin films were determined experimentally to predict their application efficiency in advanced energy storage devices such as supercapacitors.

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Section: Charge-discharge Measurementmentioning

confidence: 99%

Cobalt Hydroxide Nanoparticles: Preparation, Synthesis, Characterization and Application in Supercapacitor

Naeem¹,

Patil²,

Shinde³

et al. 2023

Preprint

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“…The voltage biasing and expected redox current depend greatly on the specific redox reaction one wants to monitor. Hence the potentiostat circuit must support a wide measurement range, capable of accommodating currents ranging from picoamperes to microamperes [17]- [19]. Secondly, potentiometric measurements are employed to determine the concentration of a solute in a solution.…”

Section: Introductionmentioning

confidence: 99%

A Multichannel Electrochemical Sensor Interface IC for Bioreactor Monitoring

Lin,

Sijbers,

Avdikou

et al. 2023

IEEE Trans. Biomed. Circuits Syst.

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This research paper introduces a novel integrated circuit (IC) designed for bioreactor applications catering to multichannel electrochemical sensing. The proposed IC comprises 2x potentiometric, 2x potentiostat, 2x ISFET channels and 1x temperature channel. The potentiostat channel utilizes a current conveyor-based architecture with a programmable mirroring ratio, enabling an extensive measurement range of 114 dB. The potentiometric channel incorporates a customized electrostatic discharge (ESD) protection circuit to achieve ultra-low input leakage in the picoampere range, while the ISFET channel employs a constant-voltage, constant-current topology for accurate pH measurement. Combined with the die temperature sensor, this IC is well-suited for monitoring bioreactions in realtime. Additionally, all channels can be time-multiplexed to a reconfigurable analog backend, facilitating the conversion of input signals into digital codes. The prototype of the IC is fabricated using 0.18 µm standard CMOS technology, and each channel is experimentally characterized. The interface IC demonstrates a peak power consumption of 22µW.

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