How to choose the size of Reference Electrode? The diameter of   ERA131B [ Silver Silver Chloride Ag/AgCl Reference Electrode Φ4*50mm Glass Rod ]   glass tube is 4mm, which is not the best choice for CHR221B2. The diameter of   ERA131A [ Silver Silver Chloride Ag/AgCl Reference Electrode Φ6*70mm Glass Rod ] is 6mm, which is more suitable for CHR221B2.     L et me   briefly introduce this electrochemical cell for you.I attached two images, so you can see it clearly: Figure 1   is the default opening diagram of   CHR221B2 [ H-Type Sealed Electrochemical Cell 30ml 45ml ] .   The left side is the working electrode chamber opening diagram, and the right side is the counter electrode chamber opening diagram. As shown in the parameter diagram on our product details page, we place the working electrode and the reference electrode in a chamber, and are equipped with gas inlet and outlet holes [for inert gas protection and oxygen-free o...

How to extend the life of the reference electrode?  When you strictly follow the precautions for the reference electrode, you can extend the life of the reference electrode. You can refer to the following points: 1. During measurement, the reference electrode salt bridge liquid level should be (2-3) cm higher than the interface to be tested to prevent the liquid to be tested from diffusing into the reference electrode. For example, the liquid to be tested contains chlorides, sulfides and complexes. The inward diffusion of mixtures, silver salts and perchlorates will affect the potential of the reference electrode. 2. The filling liquid inside the reference electrode needs to be replaced frequently. The filling solution needs to choose the ratio of analytical pure reagent and DI water. 3. The electrode potential of SCE has a large negative temperature coefficient and thermal hysteresis, so try to prevent the large fluctuation of SCE temperature during measurement. The operating temp...

      The GDL is a porous structure made by weaving carbon fibers into a carbon cloth (e.g. GDL-CT and ELAT) or by pressing carbon fibers together into a carbon paper.  Many of the standard GDLs that are produced today come with a Micro Porous layer (MPL) and hydrophobic treatment (PTFE).  The MPL and PTFE help with the contact to the membrane and with water management.  The MPL typically provides a smooth layer with plenty of surface area for catalyst and good contact with the membrane.  The MPL often uses PTFE as a binder that increases hydrophobicity, which helps keep the water within the membrane from escaping – drying out the membrane and causing higher resistance (lower performance).  There is often an additional PTFE coating on the MPL surface to further augment this. What Exactly Does a Gas Diffusion Layer (GDL) Do? GDL essentially acts as an electrode that facilitates diffusion of reactants across the catalyst layered membrane. The surfac...

  H type electrochemical cell includes H-type replaceable ion-exchange membrane electrolytic cell and H-type glass filter element electrolytic cell. The H-type replaceable ion-exchange membrane electrolyzer is a double-chamber three-electrode electrochemical reaction cell, which is suitable for electrochemical experimental tests where the anode and cathode electrolytes are different or not suitable for mixing. For example, CO2RR, NRR and other tests. If the measurement needs to be carried out in a certain gas atmosphere or an oxygen-free environment, a sealed electrolytic cell must be used and equipped with air inlet and outlet pipes. The H-type replaceable ion-exchange membrane electrolyzer is composed of a working electrode chamber and a counter electrode chamber. The two chambers are separated by ion-exchange membranes (provided by the user), and stainless steel clips are used for rapid membrane change. The reference electrode and the working electrode are in the same chamber, w...

  The working electrode refers to an electrode that can cause significant changes in the concentration of the component to be tested in the test solution during the test. Common working electrodes include disk electrodes and replaceable electrode holders. Disk electrodes include glassy carbon electrodes,platinum disk electrodes,gold disk electrodes,silver disk electrodes,graphite electrodes,etc. Replaceable electrode holders include PTFE electrode holders, PEEK electrode holders, metal electrode holders, glassy carbon electrode holders, sample holders, etc. Glassy carbon electrode is one of the most widely used working electrodes, and it is a better inert electrode. Glassy carbon electrode has many advantages such as good conductivity, high hardness, high finish, high hydrogen overpotential, and wide polarization range. Its chemical properties are very stable, and it can be used as an inert electrode for direct anodic dissolution testing, and voltammetric determination of cathodes ...

  In-situ Raman spectroscopy electrochemical cell is designed and manufactured for studying the in-situ spectra and morphology changes of electrode materials in electrochemical experiments. The working electrode is placed directly under the see-through window, so that the optical instrument can detect the working electrode from the quartz light window above the cell body. Commonly used instruments include optical microscopes, infrared microscopes, X-ray spectrometers, confocal Raman spectrometers, etc. According to different experimental test requirements, the in-situ Raman spectroscopy electrochemical cell is divided into four types: Single cell body with single light window type Single cell body with double light window type H type double cell body with single side light window type H type double cell body with double side light window type The single cell body with single light window type is the most widely used in-situ Raman characterization cell in DekResearch. It can be appl...

Platinum is an inert metal and does not participate in the electrode reaction itself, so it is the first choice for the counter electrode. One of the important parameters of the counter electrode is its surface area. The counter electrode must have a large enough area to support the current conduction generated on the working electrode. Platinum electrodes include platinum sheet electrodes, platinum wire electrodes, and platinum mesh electrodes. The platinum wire electrode has a relatively small area ，which is suitable for use in combination with a disc-shaped working electrode. The platinum wire electrode has a variety of shapes and structures, which can be bent according to the length of the platinum wire to be used with various types of electrochemical cells. The insulating rod material of the platinum wire electrode can be PTFE or PEEK rod. As the working electrode undergoes an oxidation or reduction reaction, a gas evolution reaction or a reverse reaction of the working electrode ...