The electrochemical capacitive property of the tetraaniline (TA) microcrystals was investigated for the first time in the present work. The TA microcrystals/reduced graphene oxide (TA/rGO) composite film was optimized by facile vacuum filtration, with thickness of 0.043 mm, electrical conductivity of 4.22 S/cm, and stable specific capacitance near 420 F/g at 100 mV/s for 9000 cycles as free-standing electrode. The superior electrochemical stability should be originated from the crystal structure of the TA flakes, which could efficiently prevent the volume change and hydrolytic degradation during the charging/recharging cycles. The TA/rGO based symmetrical solid-state supercapacitor possessed a high specific capacitance of 459.1 F/g at 1 A/g, an excellent cyclic stability with retention of 89.5% after 2000 cycles and an outstanding flexibility with retention of 77.9% after 100 cycles of 120°-bending.

在本工作中首次研究了四苯胺（TA）微晶的电化学电容性能。TA微晶/还原氧化石墨烯（TA / rGO）复合膜通过简便的真空过滤进行了优化，厚度为0.043mm，导电率为4.22S / cm，在100 mV / s下的420 F / g附近具有稳定的比电容。 9000个循环作为独立式电极。优异的电化学稳定性应源自TA薄片的晶体结构，该晶体结构可以有效地防止在充电/充电循环期间体积变化和水解降解。基于TA / rGO的对称固态超级电容器在1 A / g时具有459.1 F / g的高比电容，出色的循环稳定性，保留率达89。