Precise synthesis of BN embedded perylene diimide oligomers for fast-charging and long-life potassium-organic batteries.

ABSTRACT: Replacing the C[double bond, length as m-dash]C bond with an isoelectronic BN unit is an effective strategy to tune the optoelectronic properties of polycyclic aromatic hydrocarbons (PAHs). However, precise control of the BN orientations in large PAH systems is still a synthetic challenge. Herein, we demonstrate a facile approach for the synthesis of BN embedded perylene diimide (PDI) nanoribbons, and the polarization orientations of the BN unit were precisely regulated in the two PDI trimers. These BN doped PDI oligomers show great potential as organic cathodes for potassium-ion batteries (PIBs). In particular, trans-PTCDI3BN exhibits great improvement in voltage potential, reversible capacities (ca. 130 mA h g^-1), superior rate performance (19 s to 69% of the max

SUBMITTER: Shao G 

PROVIDER: S-EPMC10901525 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature