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Hierarchically Porous and Nitrogen-Doped Graphene-Like Microspheres as Stable Anodes for Lithium-Ion Batteries.
- Source :
- ChemElectroChem; Nov2015, Vol. 2 Issue 11, p1830-1838, 9p
- Publication Year :
- 2015
-
Abstract
- Novel 3D hierarchically porous and nitrogen-doped graphene-like microspheres (3D NPGSs) are prepared by precursor-assisted chemical vapor deposition. 3D NPGSs obtained by using Ni microspheres as a structural template exhibit a 3D conductive framework, and have a well-defined porous structure, large surface area and appropriate heteroatom doping, making them suitable for high-performance storage of lithium ions. Consequently, a good rate capability and excellent cycle performance are achieved using the 3D NPGSs as anodes for lithium storage, and a high reversible capacity of 840 mA h g<superscript>−1</superscript> is obtained after 200 cycles. For a further capacitance boost, a thin layer of iron oxide nanoparticles is deposited onto the 3D NPGSs. The resulting 3D FeO<subscript> x</subscript>-NPGS electrode exhibits a stable reversible capacity up to 1343 mA h g<superscript>−1</superscript> after 100 cycles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21960216
- Volume :
- 2
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- ChemElectroChem
- Publication Type :
- Academic Journal
- Accession number :
- 115274821
- Full Text :
- https://doi.org/10.1002/celc.201500145