fig2

Two-dimensional nitrogen and phosphorus <InlineParagraph>co-doped</InlineParagraph> mesoporous carbon-graphene nanosheets anode for high-performance potassium-ion capacitor

Figure 2. Structural characterizations of N/P-MC@RGO, N/P-MC and RGO samples: (A) XRD, (B) Raman, (C) nitrogen adsorbed/desorbed isotherms, (D) pore-size distribution. XPS spectra of N/P-MC@RGO including high-resolution (E) N 1s and (F) P 2p.

Energy Materials
ISSN 2770-5900 (Online)
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