Sono-Cavitation and Nebulization-Based Synthesis of Conjugated Microporous Polymers for Energy Storage Applications

• DOI: 10.1021/acsami.1c13755
• Publication Date: 2021-12-20T13:32:56Z
• Authors: Deok-Ho Roh; HyeonOh Shin; Hyun-Tak Kim; Tae-Hyuk Kwon
• Keywords: Conjugated microporous polymer

Conjugated microporous polymers (CMPs) are promising energy storage materials owing to their rigid and cross-linked structures. However, the fabrication of nano- microstructured CMP films for practical applications is currently limited by processing challenges. Herein, we report that combined sono-cavitation nebulization synthesis (SNS) an effective method from a monomer precursor solution. Using SNS, scalable redox-active can be achieved via oxidative C-C coupling polymerization precursor. Intriguingly, ultrasonic frequency used during SNS strongly affects films, resulting in approximately 30% improvement reaction yields ca. 1.3-1.7-times enhanced surface areas (336-542 m2/g) at high 180 kHz compared those 120 kHz. Furthermore, prepare highly conductive, three-dimensional porous electrodes [CMP/carbon nanotube (CNT)] layer-by-layer sequential deposition CNTs SNS. Finally, asymmetric supercapacitor comprising CMP/CNT cathode carbon anode shows specific capacitance 477 F/g 1 A/g with wide working potential window (0-1.4 V) robust cycling stability, exhibiting 94.4% retention after 10,000 cycles.