Electrochemical testing - 2 - What is a reference electrode?

What is a reference electrode?

A reference electrode is used as a scale to measure the potential of the working electrode.

Reversible reactions

Just as a scale is unchanging, the potential and chemical conditions of the reference electrode should also be unchanging.

Thus, it is necessary that the reactions - oxidation and reduction - occurring inside a reference electrode are reversible. This ensures constant chemistry.

No polarization

It also ensures that there is no net polarization as both reactions occur simultaneously at different points in the reference electrode. this keeps its potential constant.

Thus, the potential of any working electrode connected to this reference electrode will be dependent only on the conditions of the working electrode. This makes it easier to note the changes happening in the working electrode.

Check out the video for a detailed explanation

Done? Click here for Part 1 and PART 3!

NOW, Are you ready to test your corrosion knowledge?

Click here for the first quiz!

For concise and focussed courses, check out the website below!

https://corrospective.com

Comments

CAREER OPTIONS IN CORROSION

CAREER OPTIONS IN CORROSION The first time I studied corrosion was in 2009. The last 14 years have taught me one important thing - The path of a career in corrosion is not as straightforward as we are led to believe. Whether we are starting as a student of corrosion, or are entering the field after working as a non-corrosion person, there is always some career pathway that we are not aware of. There are research projects, certifications , audits, inspections , etc. EveryEng gave me the opportunity to share my learnings about the possible options in the field of corrosion . If you are someone who is starting or wants to switch to/between corrosion and its related fields, here is a short presentation for you! https://www.everyeng.com/mentor/course/view/3559864f 😀 Happy learning! 😀

Practice quiz for coatings - 1

Practice, practice, practice... and you shall gain the certificate! So here goes a new series, where I will post quizzes on various corrosion and coating topics. This is for anyone who likes quizzes, and ESPECIALLY for those attempting exams! So here goes the first one! Subscribe to this blog for updates! Loading…

What is a Corrosion Loop - PART 1 - CONCEPT

Corrosion loop is used to simplify inspection procedures in refining processes. Corrosion loop is defined as a group of components with common materials, processes, and operating parameters. Source: Rachman, A. and Ratnayake, R.M.C. (2020), "Corrosion loop development of oil and gas piping system based on machine learning and group technology method", Journal of Quality in Maintenance Engineering, Vol. 26 No. 3, pp. 349-368. https://doi.org/10.1108/JQME-07-2018-0058 It is needed when the scenario has - 1. Complex process 2. Several variables such a materials of construction, process parameters, functions 3. Multiple damage mechanisms WATCH THE VIDEO FOR A DETAILED EXPLANATION - Click here for part 2 ! https://corrospective.com/ 😀Happy learning! 😀

Search This Blog