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Construction of Porous Carbon Nanosheet/Cu₂S Composites with Enhanced Potassium Storage.

ABSTRACT: Porous C nanosheet/Cu₂S composites were prepared using a simple self-template method and vulcanization process. The Cu₂S nanoparticles with an average diameter of 140 nm are uniformly distributed on porous carbon nanosheets. When used as the anode of a potassium-ion battery, porous C nanosheet/Cu₂S composites exhibit good rate performance and cycle performance (363 mAh g^-1 at 0.1 A g^-1 after 100 cycles; 120 mAh g^-1 at 5 A g^-1 after 1000 cycles). The excellent electrochemical performance of porous C nanosheet/Cu₂S composites can be ascribed to their unique structure, which can restrain the volume change of Cu₂S during the charge/discharge processes, increase the contact area between the electrode and the electrolyte, and improve the electron/ionic conductivity of the electrode material.

SUBMITTER: Mu M

PROVIDER: S-EPMC10489898 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Construction of Porous Carbon Nanosheet/Cu2S Composites with Enhanced Potassium Storage.

Mu Meiqi M Li Bin B Yu Jing J Ding Jie J He Haishan H Li Xiaokang X Mou Jirong J Yuan Jujun J Liu Jun J

Nanomaterials (Basel, Switzerland) 20230825 17

Porous C nanosheet/Cu2S composites were prepared using a simple self-template method and vulcanization process. The Cu2S nanoparticles with an average diameter of 140 nm are uniformly distributed on porous carbon nanosheets. When used as the anode of a potassium-ion battery, porous C nanosheet/Cu2S composites exhibit good rate performance and cycle performance (363 mAh g-1 at 0.1 A g-1 after 100 cycles; 120 mAh g-1 at 5 A g-1 ...[more]

PMID: 37686924

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