[Illinois] ECE 416 Electrochemical Sensors

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Abstract

           In this lecture, we begin discussing the three types of electrochemical sensors: Potentiometric, Amperometric, and Conductometry. The focus of the lecture is the potentiometric and how it is used to measure the potential difference between two electrodes. This is used for sensing ions and helps with determining experimental EMF of the ions. Two types of potentiometric systems were shown. The first one had two electrodes set and the voltage measured between. The second system was a Daniell Cell in which the container the solution was in, was the second electrode. The concentration of ions in a solution can be measured through the detection of the EMF of the cell. Then, the amperometric transducer was discussed and specifically in relation to Oxygen. There is a platinum catalyst that speeds the process of turning oxygen into water and the electrons moving between the electrode to the solution have their amperage measured, Further information will be discussed in the next lecture.

Cite this work

Researchers should cite this work as follows:

  • Brian Cunningham (2013), "[Illinois] ECE 416 Electrochemical Sensors," https://nanohub.org/resources/16946.

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Time

Location

University of Illinois at Urbana-Champaign, Urbana, IL

Submitter

NanoBio Node, Obaid Sarvana, George Daley

Tags

[Illinois] ECE 416 Lecture 11: Electrochemical Sensors
  • Lecture 9: Electrochemical Sensors 1. Lecture 9: Electrochemical Sen… 0
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  • Electrochemistry 2. Electrochemistry 120.3570270145035
    00:00/00:00
  • Electrochemical Half Cell 3. Electrochemical Half Cell 151.98581888960979
    00:00/00:00
  • Electrochemical Cell 4. Electrochemical Cell 255.37584576883864
    00:00/00:00
  • Daniell Cell 5. Daniell Cell 380.2124849383631
    00:00/00:00
  • Daniell Cell 6. Daniell Cell 535.0495875428677
    00:00/00:00
  • Daniell Cell 7. Daniell Cell 812.36792103067933
    00:00/00:00
  • H2 Referance Electrode 8. H2 Referance Electrode 970.05630735007867
    00:00/00:00
  • H2 Referance Electrode 9. H2 Referance Electrode 1057.2064139401243
    00:00/00:00
  • H2 Referance Electrode 10. H2 Referance Electrode 1251.961488553156
    00:00/00:00
  • Common Reference Electrodes 11. Common Reference Electrodes 1296.8382148484568
    00:00/00:00
  • Saturated Calomel Electrode 12. Saturated Calomel Electrode 1508.5770228936879
    00:00/00:00
  • Nernst Equation 13. Nernst Equation 2030.981787005283
    00:00/00:00
  • Nernst Equation 14. Nernst Equation 2077.9659838724629
    00:00/00:00
  • Nernst Equation 15. Nernst Equation 2109.0821670219666
    00:00/00:00
  • Nernst Equation 16. Nernst Equation 2197.7198998980443
    00:00/00:00
  • Amperometric O2 Sensor 17. Amperometric O2 Sensor 2298.878487348225
    00:00/00:00
  • Clark O2 Sensor 18. Clark O2 Sensor 2547.3120771155809
    00:00/00:00