For after drop casting the material on GCE. When I immerse my working electrode into the electrolyte solution, material on the working electrode is unable stay on the GCE. Any solution for this? I know we can use binder but without binder how might I solve this?
There are few studies on the strategy for material immobilization on electrode surface. First, u can use polymer to trap your material on your electrode such as chitosan, nation, pedot and etc. But you must be careful with the ratio polymer and your material to avoid current inhibition. Eg mix your material with chitosan in the ratio of 1:5 before casting drop on electrode. Second step is based on chemical modification. For example u can modify your carbon electrode with hydroxyl group by soaking in KOH for few hours, follow by using 2% APTEs to introduce amine(NH2) on electrode surface. At the same time, you can treated your material with nitric acid or other chemical, producing carboxyl group. This treated material will strongly binding on amine modified carbon electrode. I hope I can answer your question
Hello, I think that we need a little bit more information. What is the material you want to immobilize? It is not the same a polymer, aromatic compounds, metal complex...
Thanks for the answer Mr.Pedro,i want to bind carbon composite material,i like to immoblize the carbon composite material on GCE working electrode.
If you want to study the electrochemical propierties of the carbon composite, you don`t need a GCE. Have you considered making an electrode with your composite? Can you make a carbon paste electrode like? It would be easier and simpler.
I too have prob with drop casting my material onto GCE.. Its a Graphene based material in DMF. If I drop cast, It doesnt cover the electrode area.. If i make a paste out of it..and dry in air..and perform CV...It's not stable in electrolyte...Can anyone suggest the ways to perform.?
- Badges
- Science topic
- Similar topics
- Geoscience
- Asia
- India