Two-dimensional β-MoO₃@C nanosheets as high-performance negative materials for supercapacitors with excellent cycling stability.

ABSTRACT: MoO₃ has gained a great deal of attention as a promising electrode material in energy storage devices. In particular, the low dimensional MoO₃ nanosheets coated with carbon layers are desirable electrode materials in supercapacitors. However, the fabrication or construction of β-MoO₃ with a special morphology is difficult. Here, we report a simple solvothermal treatment method to synthesize two-dimensional β-MoO₃@C (2D β-MoO₃@C) nanosheets. When used as electrode materials for supercapacitors, the as-prepared material displays an ultra-long lifespan with a 94% retention ratio after 50 000 cycles at 2 A g^-1. The excellent cycling stability is mainly attributed to the unique 2D nanosheet structure and the presence of the carbo

SUBMITTER: Liu X 

PROVIDER: S-EPMC9053513 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature