Good Measurement Practices

By Pawel Jerzy Wojcik, Ph.D. If you want to cite this blog post use: Wojcik, P.J. (2021). When is PTFE better than PEEK? [online] redox.me Available at: https://redox.me/blogs/good-measurement-practices/when-ptfe-is-better-than-peek [Accessed Date Accessed]. Although PEEK is usually the material of choice for electrochemical cell body, redox.me team often gets questions, whether PTFE would be better for a given experiment. In this short post, we have collected information gathered from the chemical compatibility charts, publications, our own observations, and feedback received from our customers. PEEK plastic (Polyetherether Ketone) is a tough, strong, and rigid material. It is an excellent material for CNC machining and 3D...

By Marcin Orzech If you want to cite this blog post use: Orzech, M. (2020). Methods for cleaning substrates and glass chambers for electrochemical measurements. [online] redox.me Available at: https://redox.me/blogs/good-measurement-practices/methods-for-cleaning-substrates-and-glass-chambers-for-electrochemical-measurements [Accessed Date Accessed]. 1. IntroductionClean labware is essential in electrochemistry, as contamination will lead the most carefully executed experiment to fail and provide an invalid result. There are several methods of cleaning glassware and other items, which vary depending on laboratory preferences. Here are described some of the most common methods of cleaning glassware and substrates/electrodes for electrochemical measurements. For high precision measurements, the cleanliness of glass is verified by uniform wetting of...

By Vedran Đerek and Pawel Jerzy Wojcik If you want to cite this blog post use: Đerek, V., Wojcik, P.J. (2018). Power supply selection for electrochemical porous silicon formation. [online] redox.me Available at: https://redox.me/blogs/good-measurement-practices/power-supply-selection-for-electrochemical-porous-silicon-formation  [Accessed Date Accessed]. 1. Setup descriptionPorous silicon is electrochemically produced by applying anodic voltage across the top and bottom of a silicon wafer in the electrolyte containing fluorine anions. A typical two-electrode setup for electrochemical porous silicon formation consists of: silicon wafer (working electrode - anode), platinum electrode (counter electrode -cathode), etching solution (HF based electrolyte), etch cell and power supply. A three-electrode setup is additionally equipped...

By Pawel Jerzy Wojcik If you want to cite this blog post use: Wojcik, P.J. (2017). Troubleshooting Electrochemical Cell. [online] redox.me Available at: https://redox.me/blogs/good-measurement-practices/troubleshooting-electrochemical-cell [Accessed Date Accessed]. This post concerns a situation in which the electrochemical setup based on a cell does not seem to be producing the proper response. The specific guidelines for checking an electrochemical system and isolating the problem may be typically found in setup manual. The following post has a more general character and is based on electrochemistry handbooks [1]. Let’s consider the setup intended for CV measurements in a 3-electrode configuration. It consists of metal...