Fig. 4From: Activated Carbon Fibers with Hierarchical Nanostructure Derived from Waste Cotton Gloves as High-Performance Electrodes for SupercapacitorsNitrogen adsorption-desorption tests. a Nitrogen adsorption-desorption isotherms at 77 K and b their corresponding PSD curves of the CGACF (red line and symbol), CGCF (blue line and symbol) and AC (black line and symbol) samplesBack to article page