Issue 17, 2022

Petal-like and cube-like manganese silicates derived from natural reed leaves for high-performance supercapacitors

Abstract

Different morphologies of 3D N, P, S-doped C–(Mn2O3)3MnSiO3 (petal-like C–MnSi-0.5 and cube-like C–MnSi-2.0) are derived from natural reed leaves and used in electrochemical supercapacitors. The as-obtained C–MnSi materials have an architecture with huge BET surface area and large number of pore structures and exhibit outstanding electrochemical performance. C–MnSi-0.5 gives 376 F g−1 and C–MnSi-2.0 gives 391 F g−1 at the current density of 0.5 A g−1. Both C–MnSi materials maintain high retention (above 99%) after 10 000 cycles. The SC devices with C–MnSi and activated carbon (C–MnSi-0.5‖AC and C–MnSi-2.0‖AC) achieve high capacities (378 and 458 mF cm−2 at a current density of 2 mA cm−2, respectively) and good cycle stabilities (70.2% and 73.8% capacity after 6000 cycles, respectively). The results presented in this study indicate that the N, P, S-doped C–MnSi architectures from natural reed leaves are promising and efficient materials for manufacturing high performance supercapacitors.

Graphical abstract: Petal-like and cube-like manganese silicates derived from natural reed leaves for high-performance supercapacitors

Supplementary files

Article information

Article type
Research Article
Submitted
29 अप्रैल 2022
Accepted
03 जुलाई 2022
First published
05 जुलाई 2022

Mater. Chem. Front., 2022,6, 2447-2457

Petal-like and cube-like manganese silicates derived from natural reed leaves for high-performance supercapacitors

S. Zhang, M. Cui, Y. Zhang, Z. Li and C. Meng, Mater. Chem. Front., 2022, 6, 2447 DOI: 10.1039/D2QM00376G

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