Fig. 5. (Color online) X-ray photoelectron spectroscopy of the fabricated foam Ni structure based on synthesis temperature: (a) C 1s of the porous 3D graphene structure before and after the fabrication; (b) O 1s of the porous 3D graphene structure before and after the fabrication.

New Phys.: Sae Mulli 2022;72:329~335 https://doi.org/10.3938/NPSM.72.329

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