fig2
Figure 2. (A) Raman spectra and (B) XRD patterns of CNTs, Co@CNTs and Co SAs/NPs@N-CNTs. XRD: X-ray diffraction; CNTs: carbon nanotubes; SAs: single atoms; NPs: nanoparticles.
Figure 2. (A) Raman spectra and (B) XRD patterns of CNTs, Co@CNTs and Co SAs/NPs@N-CNTs. XRD: X-ray diffraction; CNTs: carbon nanotubes; SAs: single atoms; NPs: nanoparticles.
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