A Variable-Potential Amperometric Hydrocarbon Sensor

Aliramezani, Masoud; Koch, Charles Robert; Patrick, Ron

doi:10.1109/jsen.2019.2938920

Cited by 7 publications

(1 citation statement)

References 23 publications

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“…Among the various types of electrochemical sensors, voltammetric based sensors are widely used in medical healthcare [ 12 , 31 ], gas identification and monitoring [ 32 ], portable devices [ 15 , 21 , 33 ], and conducting scientific researches on electrochemical reaction analysis or sensor data acquisition circuits design [ 30 , 34 , 35 ]. Therefore, a deep understanding of its equivalent electrical model is of great significance [ 36 , 37 ].…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Equivalent Impedance Models for Electrochemical Nanosensor-Based Integrated System Design

Wang

Murphy

O’Riordan

et al. 2021

Sensors

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Models of electrochemical sensors play a critical role for electronic engineers in designing electrochemical nanosensor-based integrated systems and are also widely used in analyzing chemical reactions to model the current, electrical potential, and impedance occurring at the surface of an electrode. However, the use of jargon and the different perspectives of scientists and electronic engineers often result in different viewpoints on principles of electrochemical models, which can impede the effective development of sensor technology. This paper is aimed to fill the knowledge gap between electronic engineers and scientists by providing a review and an analysis of electrochemical models. First, a brief review of the electrochemical sensor mechanism from a scientist’s perspective is presented. Then a general model, which reflects a more realistic situation of nanosensors is proposed from an electronic engineer point of view and a comparison between the Randles Model is given with its application in electrochemical impedance spectroscopy and general sensor design. Finally, with the help of the proposed equivalent model, a cohesive explanation of the scan rate of cyclic voltammetry is discussed. The information of this paper can contribute to enriching the knowledge of electrochemical sensor models for scientists and is also able to guide the electronic engineer on designing next-generation sensor layouts.

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