Anthraquinone-based porous organic polymers: From synthesis to applications in electrochemical energy conversion and storage

Abstract

Anthraquinone derivatives, owing to their widespread resources, high structural diversity and excellent electrochemical characteristics, are a class of useful carbonyl materials that actively participate in multiple electrochemical processes. Nonetheless, good solubility of small molecules in organic electrolyte solutions causes a gradual decline in the cycle stability of related devices. Incorporating anthraquinone subunit into porous organic polymers (POPs) not only resolve the solubility problem but also endow the corresponding polymers with larger specific surface areas and more stable rigid structures, which is significantly meaningful to enhance the accessibility of active sites and improve the cycle stability of electrochemical devices. Recently, electrochemical energy conversion and storage have attracted growing attention in both scientific research and practical applications, and anthraquinone-based POPs play vital roles in these processes. Therefore, this article systematically summarizes the recent advances of anthraquinone-based POPs in electrochemical energy conversion and storage. Firstly, the synthesis of anthraquinone-based POPs is discussed, which will provide detailed information on how to select monomers as well as reactions and how to optimize reaction conditions to gain the desired POPs. Secondly, the practical applications of anthraquinone-based POPs in electrochemical energy conversion and storage are evaluated in detail, in which the morphology manipulation and conductivity improvement will be emphatically elaborated. Finally, the future development trend is also briefly prospected.