Back to Search
Start Over
Recyclable fabrication of hollow N-doped amorphous carbon nanospindles with abundant short-range curved carbon fragments as bifunctional anode for lithium/sodium ion storage.
- Source :
-
Journal of Colloid & Interface Science . Apr2024, Vol. 659, p868-877. 10p. - Publication Year :
- 2024
-
Abstract
- [Display omitted] A recyclable hard-template method is proposed to exploit spindle-shaped hollow nitrogen-doped amorphous carbon (h-NAC) with a large number of short-range curved carbon fragments as anodes for lithium/sodium ion batteries (LIBs/SIBs). Besides providing adsorption sites due to the high existence of oxygen-containing functional groups (CO and COOH), the heavily exposed edge regions also provide a favorable storage environment with high adsorption energy for Li+/Na+ due to their short-range curved structure. Importantly, the etching solution of hard templates can be recycled to generate the FeOOH nanospindles as a precursor through a simple chemical titration, which supplies a new idea for the green preparation of hollow materials. The h-NAC electrode is proven to be bifunctional for storing lithium and sodium ions, displaying favorable rate capability (255 mAh g−1 and 106 mAh g−1 at 5 A g−1 for LIBs and SIBs, respectively). After 1000 cycles at 1 A g−1, the reproducible capacities of the LIBs and SIBs kept 496 mAh g−1 and 181 mAh g−1, respectively. [ABSTRACT FROM AUTHOR]
- Subjects :
- *AMORPHOUS carbon
*SODIUM ions
*DOPING agents (Chemistry)
*ANODES
*LITHIUM ions
Subjects
Details
- Language :
- English
- ISSN :
- 00219797
- Volume :
- 659
- Database :
- Academic Search Index
- Journal :
- Journal of Colloid & Interface Science
- Publication Type :
- Academic Journal
- Accession number :
- 175028297
- Full Text :
- https://doi.org/10.1016/j.jcis.2024.01.053