Fig. 2From: Porous Carbon Networks Derived From Graphitic Carbon Nitride for Efficient Oxygen Reduction Reactiona XRD patterns of g-C3N4@PDA-120, g-C3N4@PDA-140, and g-C3N4@PDA-160; b FT-IR spectra of g-C3N4, g-C3N4@PDA-120, g-C3N4@PDA-140, and g-C3N4@PDA-160; c FT-IR spectra of g-C3N4, g-C3N4/PDA-120, and NC-120; d Raman spectra of NC-120, NC-140, and NC-160Back to article page