by MTX Labs Team | Oct 19, 2023 | Electrode FAQ
When GCE is used in an acidic medium, it produces surface oxides through an acid-catalyzed process, resulting in activation of the GCE surface and causing bulk oxidation. In alkaline media, The carbon layers become hydrophilic and dissolve as a result of...
by MTX Labs Team | Oct 19, 2023 | Electrode FAQ
High anodic potentials leads to oxidation of carbon and affect the catalyst’s electrochemical performance on the surface of the modified GCE. However, in some cases, such oxidations activate the modified GCE surface and enhance the rate of electron transfer in...
by MTX Labs Team | Oct 19, 2023 | Electrode FAQ
There are 3 different sizes of alumina powder for polishing the GCE surface namely 1.0, 0.3, and 0.05 microns. Alumina with a particle size of 0.05 micron is commonly used. After polishing the electrode surface with 0.05 micron slurry, if some scratches or residues...
by MTX Labs Team | Oct 19, 2023 | Electrode FAQ
Position the GCE vertically and aim it towards the alumina slurry existing in the glass pad, drawing a continuous 8 line in the pad with mild pressure as shown in Fig 1, and not a zigzag or horizontal line as shown in Fig 2 and 3. Wash the polished GCE using...
by MTX Labs Team | Oct 19, 2023 | Electrode FAQ
Yes, polishing of GCE is highly recommended prior to the experimentation using alumina and diamond slurries to obtain clean and uniform surface. Also, to remove the residues of the previous experiments. In this way, the repeatability, sensitivity, and stability of the...
by MTX Labs Team | Oct 19, 2023 | Electrode FAQ
In general, Glassy Carbon Electrode (GCE) is the preferred working electrode in electrochemistry because of their chemical inertness, easy fabrication, high hardness, wide range potential, high electrical conductivity, low capacitance, and low current background. GCE...
