Research / 2020 / Article / Fig 9

Review Article

Structure Engineering in Biomass-Derived Carbon Materials for Electrochemical Energy Storage

Figure 9

(a) Graphic representation of the synthetic procedure, (b) XRD patterns, (c) S 2p XPS spectrum, (d) Raman spectra, and (e) FTIR spectra of sulfur-doped carbon microtubes [136] (copyright 2018, American Chemical Society). (f) Synthesis process and structural schematic diagram, (g) C 1s XPS spectrum, (h) B 1s XPS spectrum, (i) different boron-doping time, and (j) cycling performances of B-doped activated wood-derived carbon [87] (copyright 2015, American Chemical Society).