Nitrogen-doped porous structure carbon material based on polyion liquid and preparation method thereof

• Main Authors: Cao Peng, Xiong Yubing, Yu Junrui, Fan Yuxia, Zuo Yong
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a nitrogen-doped porous structure carbon material based on polyion liquid and a preparation method thereof. The polyion liquid PCMVIm-Tf2N and carboxymethyl chitosan (CMC) are taken as precursors, a film is prepared by mixed liquor of the polyion liquid PCMVIm-Tf2N and the carboxymethyl chitosan, a highly ionic bond cross-linked composite membrane is obtained through ammonia treatment, and the nitrogen-doped carbon material is prepared by carrying out carbonization treatment on the membrane. A scanning electronic microscope, an infrared spectrum, X-ray powder diffraction and BET surface analysis show that the nitrogen-doped material is of a porous structure and has a larger specific surface area; an electrochemical performance test shows that the nitrogen-doped porous structure carbon material is taken as an electrode material of a super capacitor and has higher specific capacitance (about triple of an activated carbon material) and provides a new material for the electrode material of