التفاصيل البيبلوغرافية
| العنوان: |
In-situ redox reaction derived porous nanosheets of MnO2 for supercapacitors. |
| المؤلفون: |
Zhang, Gaini1 (AUTHOR), Zhang, Jianhua1 (AUTHOR), Yang, Huijuan1 (AUTHOR), Li, Xifei1 (AUTHOR) xfli@xaut.edu.cn |
| المصدر: |
Materials Letters. Jan2022, Vol. 306, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*NANOSTRUCTURED materials, *OXIDATION-reduction reaction, *SUPERCAPACITORS, *MANGANESE dioxide, *ION transport (Biology) |
| مستخلص: |
[Display omitted] • A novel strategy was proposed to prepare porous MnO 2 nanosheets. • Introduced in-plane pores can improve the ion transport in the vertical direction. • Porous MnO 2 nanosheets exhibit enhanced specific capacitance and rate capability. The manganese dioxide (MnO 2) nanosheets with numerous in-plane nanopores are prepared via an in-situ redox reaction, then followed by an etch process. Originating from the reaction between Fe2+ ions and negatively charged MnO 2 nanosheets, the obtained porous MnO 2 nanosheets (P-MnO 2) exhibit high micro/mesoporous structure, which provide a large ion-accessible surface area for efficient charge storage. Moreover, the designed nanopores of MnO 2 nanosheets facilitate the electrolyte ions diffusion across the 2D MnO 2 nanosheets. As a result, in comparison to the pristine MnO 2 , the P-MnO 2 achieves a higher specific capacitance and desirable rate capability. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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