Preparation method of hexagonal few-layer Ti3C2 self-supporting film of flexible supercapacitor

The invention relates to the technical field of flexible supercapacitor self-supporting films, and the preparation method of the hexagonal few-layer Ti3C2 self-supporting film of the flexible supercapacitor carries out the pre-modification layering of hexagonal Ti3AlC2 precursor powder, reduces the violent reaction degree caused by microwave-assisted etching, retains the stable hexagonal frame structure of the precursor, and improves the performance of the flexible supercapacitor. The hexagonal Ti3C2 pre-etching powder prepared through microwave-assisted etching has large interlayer spacing, so that the electrochemical energy storage performance with large mass specific capacity is obtained, and the constructed hexagonal few-layer Ti3C2 self-supporting film has excellent long cycle stability; therefore, the high-specific-capacity cycle stability of the supercapacitor is maintained under the condition of long endurance time. 本发明涉及柔性超级电容器自支撑膜技术领域，该柔性超级电容器的六方少层Ti3C2自支撑膜的制备方法对六方Ti3AlC2前驱体粉末进行预改性分层，减轻了微波辅助蚀刻引起的剧烈反