the block of non-conductive binder. The SEM image of N/IL/G/SPCE
showed more uniform surface (Fig. 2B). As a liquid with good
conductivity and high viscosity, IL and N are capable of better
dispersing the G in the paste than the conditional paraffin, thus,
could better bridge the G sheets together. Thus, the conductive
performance of the N/IL/G/SPCE was notably improved due to a
mixed carbon-ionic contribution.