Preparation method and application of fish scale-based doped porous carbon material

• Main Authors: XIAO XIAO, LUO ZHANGYI, CHEN HAO, ZHAO HUI, HE WEIYU, LI ANNI, CHEN BEIBEI, WU YULIAN, LI LINFENG, CHEN XIAOLI
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a preparation method and application of a fish scale-based doped porous carbon material. The preparation method comprises the following operation steps: crushing fish scales into powder; adding the obtained fish scale powder into alkali liquor for leaching, and stirring and filtering to obtain filter residues a and filtrate a; adding the obtained filter residues a into acid liquor for leaching, and stirring and filtering to obtain filtrate b and filter residues b; mixing the filtrate a and the filtrate b to obtain white turbid liquid, and performing freeze drying treatment to obtain xerogel; roasting the obtained xerogel in an inert atmosphere, and naturally cooling to room temperature; and carrying out dilute acid leaching treatment on the pyrolysis clinker, washing with deionized water and ethanol for multiple times, and drying to obtain the black scale-based doped porous carbon material. The technical scheme is used for solving the problems that an existing fish scale-based doped po