PREPARING METHOD OF NITROGEN-ENRICHED MULTIMODAL POROUS CARBONS BY HOST UREA HYDRATES

摘要

PURPOSE: The preparation method of nitrogen-enriched multimodal porous carbon using host urea hydrates is provided to improve reversibility with repeated charging/discharging cycles. CONSTITUTION: The preparation method of multimodal porous carbon includes the following: a mixed solvent is prepared by mixing and stirring sodium hydrate, urea, and water; cellulose is dissolved in the mixed solvent to prepare an inclusion complex solution; the inclusion complex solution is freeze-dried to prepare inclusion complex gel; and the inclusion complex gel is carbonized. The mixed solvent includes 6-10 weight% of sodium hydrate, 7-15 weight% of urea, and 75-87 weight% of water.