Transition Metal-Mediated Preparation of Nitrogen-Doped Porous Carbon for Advanced Zinc-Ion Hybrid Capacitors.

ABSTRACT: Carbon is predominantly used in zinc-ion hybrid capacitors (ZIHCs) as an electrode material. Nitrogen doping and strategic design can enhance its electrochemical properties. Melamine formaldehyde resin, serving as a hard carbon precursor, synthesizes nitrogen-doped porous carbon after annealing. Incorporating transition metal catalysts like Ni, Co, and Fe alters the morphology, pore structure, graphitization degree, and nitrogen doping types/proportions. Electrochemical tests reveal a superior capacitance of 159.5 F g^-1 at a scan rate of 1 mV s^-1 and rate performance in Fe-catalyzed N-doped porous carbon (Fe-NDPC). Advanced analysis shows Fe-NDPC's high graphitic nitrogen content and graphitization degree, boosting its electric double-layer capacitance (EDLC) and pseu

SUBMITTER: Li M 

PROVIDER: S-EPMC11767337 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature