کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4762851 | 1422947 | 2018 | 8 صفحه PDF | دانلود رایگان |
- Multiporous MnO/NC was prepared from the void-free EMD.
- Multiporous MnO are evenly encapsulated in heteroatom N-doped carbon layer.
- The hybrid delivers impressive electrochemical performance.
Herein, the multiporous MnO/N-doped carbon (MnO/NC) composite based on the abundant and inexpensive electrolytic manganese dioxide were fabricated through a facile microwave-assisted carbonthermal reduction, combined with a subsequent in-situ polymerization of polydopamine onto MnO along with thermal treatment. As an anode material, it retains a reversible capacity of 770.5 mAh gâ1 at 300 mA gâ1 and high Coulombic efficiency of 99% over 500 cycles, superior than those values of the pure multiporous MnO alone. The impressive performance is attributed to the splendid structure stability contributed by well-connected three-dimensional porous configuration and the enhanced reaction kinetics as well as electrical conductivity incurred by N-doped carbon layer with multiple type nitrogen.
Journal: Chemical Engineering Journal - Volume 331, 1 January 2018, Pages 570-577