Abstract
The biomass carbons with highly developed porosity were prepared by carbonization of phoenix tree leaves (PTLs) followed by activation with KOH. The as-prepared carbons possess large interlayer spacing, abundant oxygen-containing functional groups and high degree of structural disorder. The PTLs derived carbons were firstly employed as anodes for sodium-ion batteries, with the optimized material delivering an initial discharge capacity as high as 602mAhg-1 and a reversible capacity of 134mAhg-1 after 300 cycles at 100mAg-1. Electrochemical mechanism analysis reveals a capacitive dominating Na+ storage process.
Original language | English |
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Article number | 1840008 |
Journal | Functional Materials Letters |
Volume | 11 |
Issue number | 6 |
DOIs | |
State | Published - 1 Dec 2018 |
Keywords
- Activation
- Anode
- Biomass carbons
- Phoenix tree leaves
- Sodium-ion batteries