K. Fan, C. Fu, Y. Chen, C. Zhang, G. Zhang, L. Guan, M. Mao, J. Ma, W. Hu, C. Wang*, Framework Dimensional Control Boosting Charge Storage in Conjugated Coordination Polymers. Adv. Sci. 2022, DOI：10.1002/advs.202205760.

原文链接：https://doi.org/10.1002/advs.202205760

Abstract: Conjugated coordination polymers (CCPs) with extended π-d conjugation, which can effectively promote long-range delocalization of electrons and enhance conductivity, are superior to traditional metal-organic frameworks (MOFs) and attracted great attention for potential applications in chemical sensors, electronics, energy conversion/storage devices, etc. However, the precise construction of CCPs is still challenging due to the complex and uncontrollable reactions of CCPs. Herein, the different framework dimensions of CCPs were controllably realized by employing the same ligand (2,3,5,6-Tetraaminobenzoquinone (TABQ)) and the same metal (copper) as center ions. The manipulation of reaction led to different valences of ligands and metal ions, different coordination geometry, and thereby 1D-CuTABQ and 2D-CuTABQ frameworks, respectively. High performance of charge storage was hence achieved involving the storage of both cations and anions, and therein, 2D-CuTABQ showed a high reversible capacity of ~305 mAh g^-1, good rate capability and high capacity retention (~170 mAh g^-1 after 2000 cycles at 5 A g^-1 with 0.01% decay per cycle), which outperformed 1D-CuTABQ and almost all of the reported MOFs as cathodes for batteries. These results highlight the delicate structural control of CCPs for high-performance batteries and other various applications.