Back to Search
Start Over
Nano-phosphorus supported on biomass carbon by gas deposition as negative electrode material for potassium ion batteries.
- Source :
-
Electrochimica Acta . Dec2020, Vol. 362, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- This work presents a novel method for loading phosphorus nanoparticles by gas deposition. A large amount of nano phosphorus is loaded on the carbon matrix by the reaction of phosphine gas heating. The carbon is obtained by carbonization of hemp and has a natural porous structure. The combination of phosphorus and carbon in the form of C–O–P has better stability. The product obtained a stable capacity of 463 mAh/g at 0.04 A/g. There was still a reversible capacity of 270 mAh/g after continuous operation for 6 months at a high current density of 1 A/g, and the capacity retention rate was 96.7%. The excellent cyclic stability is due to new methods of phosphorus deposition. It can reach 10 times the running time of the same type of battery, which provides a new idea for preparing phosphor-doped electrode materials. Assembled into a potassium ion capacitor, an energy density of 294.2 Wh/kg can be obtained. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NEGATIVE electrode
*POTASSIUM ions
*ELECTRIC batteries
*ENERGY density
*CARBON
Subjects
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 362
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 146712335
- Full Text :
- https://doi.org/10.1016/j.electacta.2020.137153