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Figure 3. (a) SEM image of NGNSH, inset represents a typical layered structure of NGNSH, (b) TEM image of NGNSH, (c) SEM image of NGNS/S-H25, and (d) HRTEM image of NGNS/S-H25. The scanning electron microscope (SEM) and Transmission Electron Microscope (TEM) images of NGNSH, NGNS/S-H25 and NGNS/S-H86 nanocomposites are shown in Figures 3 and S3, respectively. Figure 3a displays that the sizes of randomly distributed NSNSH particles vary in micron scale. From Figure 3a inset, it can be clearly observed that numerous NGNSH layers are stacked together. The TEM image (Figure 3b) of ultrasound dispersed NGNSH substrates shows a wrinkled two-dimensional layered structure. From Figures 3c and S3, it can be seen that both NGNS/S-H25 and NGNS/S-H86 nanocomposites show a 3D hierarchical voile- like structure with less agglomeration. EDS mappings show uniform distribution of S in both NGNS/S-H25 and NGNS/S-H86 nanocomposites (not shown). High-resolution TEM was 10 This article is protected by copyright. All rights reservedPDF Image | Nitrogen-Doped Graphene Nanosheets Composites as Cathode in Sodium-Sulfur Batteries
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