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Published on: March 1, 2020
Donor-Acceptor Conjugated Microporous Polymers for Solar-Driven Interfacial Evaporation and Water-Electricity
Liuliu Yang1, Jiahao Li1, Xiangxu Meng1
1College of Chemistry, Jilin University, Changchun, P.R. China.
Abstract:
In this study, two fully conjugated microporous polymers (ICTO-CMP1 and ICTO-CMP2) were synthesized via aldol condensation, and they hold broad light absorption properties, excellent photothermal conversion efficiency, and superior stability. Under 660 nm laser irradiation at 100 mW cm-2, the surface temperature of ICTO-CMP1 rapidly increased from room temperature to 140°C within 1 min. Moreover, the interfacial solar evaporation system based on ICTO-CMP1 achieves a high water evaporation rate of 3.67 kg m-2 h-1 with a solar-to-vapor efficiency of 96.3% under simulated sunlight irradiation, and the corresponding thermoelectric device delivers an output voltage of 290 mV. Furthermore, ICTO-CMP1 enables simultaneous water desalination and electricity generation. This study offers a viable route for developing conjugated porous polymer-based solar absorbers for photo-thermo-electric conversion applications.
