一种自催化活化一步法制备生物质基超级电容活性炭的方法
By carbonizing wood chips under high temperature and vacuum in a one-step autocatalytic activation method, and utilizing the wood chips' own activation gas and catalyst, biomass-based supercapacitor activated carbon with high specific surface area can be directly prepared. This solves the problems of complex preparation process and environmental pollution in existing technologies, and achieves efficient, low-cost, and green preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF PETROLEUM (EAST CHINA)
- Filing Date
- 2023-12-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for preparing biomass-based supercapacitor activated carbon suffer from problems such as long activation time, high temperature, low efficiency, high cost, and environmental pollution. In particular, chemical activation methods require complex washing steps and the treatment of toxic waste liquids.
A one-step autocatalytic activation method is adopted, which directly carbonizes wood chips under high temperature and vacuum conditions, and uses the activation gas and trace alkaline earth metals released from the wood chips as catalysts to combine carbonization and activation, avoiding the use of activators and complicated washing steps, and directly preparing porous carbon materials with high specific surface area.
The preparation process has been simplified, costs and energy consumption have been reduced, process efficiency has been improved, and the generation of acid and alkali waste liquids has been reduced. This has enabled the green preparation of high-performance supercapacitor activated carbon and solved the problem of wood chip disposal.
Smart Images
Figure CN117842987B_ABST