Figure 2
From: Synthesis of lignin-derived nitrogen-doped carbon as a novel catalyst for 4-NP reduction evaluation
Raman spectra of N14C at different annealing temperatures of 1173, 1273 and 1373 K. The ID/IG values represent the graphitizable degree of carbon material. The lower of the ID/IG value, the higher of graphitizable degree of carbon material.
