fig1

N, O co-doped hierarchically porous carbon derived from pitch/g-C<sub>3</sub>N<sub>4</sub> composite for high-performance zinc-ion hybrid supercapacitors

Figure 1. (A) Preparation diagram of M-C3N4-x samples; (B and C) SEM and (D-F) High-resolution TEM images of M-C3N4-2; (G-J) Elemental mappings of C, N and O elements of M-C3N4-2. SEM: Scanning electron microscopy; TEM: transmission electron microscopy.

Chemical Synthesis
ISSN 2769-5247 (Online)

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