Melamine-assisted synthesis of atomically dispersed Fe sites anchored on crumple-rich carbon nanospheres as highly efficient electrocatalysts for oxygen reduction reaction

Synergistic melamine intercalation and Zn(NO3)2 activation of N-doped porous carbon supported Fe/Fe3O4 for efficient electrocatalytic oxygen reduction

“…30 It is found that the graphitization degree, porosity and conductivity of Fe/N/C catalysts are effectively improved by introducing melamine in the preparation process. [31][32][33] Besides, it can be seen that using melamine as ligand to prepare catalysts can signicantly enhance the ORR catalytic performance. 34 Most of these catalysts pyrolyze at high temperature, various active substances are produced besides the Fe-N x coordination active site, such as metallic Fe/Fe 3 C nanoparticles, Fe x O y or FeN x nanoparticles and so on.…”