超薄Ti3C2纳米片自组装的超级电容器电极的制备方法

• Format: Patent
• Language: Chinese
• Published: 20.06.2017
• 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

本发明涉及超级电容器领域，具体为种超薄TiC纳米片自组装的超级电容器电极的制备方法。采用无压烧结的多孔TiAlC块体作为前驱体，通过HF选择性刻蚀Al层得到TiC粉末，将TiC粉末超声处理得到超薄二维TiC片层悬浮液，将此悬浮液均匀涂覆到多孔导电基底上，低温烘干制成复合型超级电容器电极。以离子通透膜作为隔膜，将制备的电极组装成对称型超级电容器，在酸性电解液中进行电化学性能测试。在无任何添加剂的情况下，这种通过简易的滴加涂覆-低温烘干自组装方式制得的TiC纳米片-多孔导电基体的复合电极，极大地提高了以TiC纳米片为基的电极的导电性能。而且，所制得的超级电容器具有高的比容量、优良的倍率性能和循环使用寿命，具有非常好的应用前景。