Fig. 1From: Facile Synthesis of Nitrogen-Doped Microporous Carbon Spheres for High Performance Symmetric SupercapacitorsSEM images of the NMCSs samples synthesized at different ethanol/water volume ratios of (a) 7:1, (b) 4.3:1, (c) 3:1 and (d) 1:1, (e) TEM and (f) HR-TEM images of the NMCSs-600Back to article page