种以金属有机骨架为前驱体制备超微孔碳纳米粒子的方法

• Format: Patent
• Language: Chinese
• Published: 25.01.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

本发明涉及种以金属有机骨架为前驱体制备超微孔碳纳米粒子的方法。先按质量比量取四氯化锆：联苯二甲酸：苯甲酸：N,N-二甲基甲酰胺溶液＝1：1.5-4：5-20：70-300份，超声混合均匀，然后，将该混合溶液转移至反应釜中，于100℃热处理0.5-2d，得到金属有机骨架UiO；在管式炉中，惰性气体保护下，按1-10℃/min的升温速率将所得金属有机骨架UiO加热到550-900℃炭化2-5h，最后自然降温至室温，用质量分数为10％的氢氟酸溶液除去金属锆，即得到超微孔碳纳米粒子。本发明工艺简单，制备的超微孔碳纳米粒子具有高比表面积和规则的超微孔，用作超级电容器电极时，具有优异的电化学性能。 The invention relates to a method for preparing ultrafine porous carbon nanoparticles from a metal organic skeleton as a precursor. The method comprises weighing zirconium tetrachloride, biphenyldicarboxylic acid, benzoic acid and N, N-dimethylformamide solution according to a mass ratio of 1: 1.5-4: 5-20: 70-300, carrying out uniform ultrasonic mixing, transferring the mixed solution into a reactor, carrying out heat treatment at a temperature of 100 DEG C for 0.5-2 d to obtain a metal organic skeleton UiO67, heating the metal organic skeleton UiO67 to 550-900 DEG C in an inert gas protective atmosphere in a tubular furnace at a heating rate of 1-10 DEG C/min, carrying out carbonization for 2-5h, naturally cooling th