Copper and conjugated carbonyls of metal-organic polymers as dual redox centers for Na storage.

ABSTRACT: Metal-organic polymers (MOPs) are fascinating electrode materials for high-performance sodium-ion batteries due to their multiple redox centers and low cost. Herein, a flower-like π-d conjugated MOP (Cu-TABQ) was synthesized using tetramino-benzoquinone (TABQ) as an organic ligand and Cu²⁺ as a transition metal node under the slow release of Cu²⁺ from [Cu(NH₃)₄]²⁺ and subsequent dehydrogenation. It possesses dual redox centers of Cu²⁺/Cu⁺ and C[double bond, length as m-dash]O/C-O to render a three-electron transfer reaction for each coordination unit with a high reversible capacity of 322.9 mA h g^-1 at 50 mA g^-1 in the voltage range of 1.0 to 3.0 V. The flower-like structure enhances fast Na<

SUBMITTER: Wang L 

PROVIDER: S-EPMC10848677 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature