We are developing rGO/Nanocellulose based electrode for supercapacitor application using DI water as solvent. We are conducting CV and GCD analysis in 3-electrode cell using 1M H2SO4 electrolyte. We observed that after soaking in electrolyte, the electrode film eventually peels off.
Please provide a solution to avoid the film peeling and remaining stable in an aqueous electrolyte during CV and GCD analysis. Your suggestions are very much appreciated.
Thank you.
Peeling off as one piece, or as flakes? What is the substrate/current collector; silver? Is it smooth or rough?
What is the process of applying the paste to the substrate? How is it dried?
The issue seems to be less about electrolyte solvent and more about the solid/solid interface between your composite and whatever is beneath it.
Anne Sawhney It is peeling off as one piece, but afterwards it is separating as flakes. I am using FTO coated glass as substrate and current collector. I am using doctor blade technique to prepare film on substrate and then dried in Oven.
Bony Thomas Yes, it is used as binder as well as nanospacer for rGO
Kiran Ishwar Nargatti Have you tried different ratios between binder (nano cellulose) and rGO? I am just wondering if increasing the nano cellulose will help in this case. I also wonder if applying a pressure on the WE during the drying process will help. If nano cellulose is not a must, changing the binder would also be a good option.
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