TY  - JOUR
AB  - © 2017 Elsevier Ltd A type of sandwich-type and mesoporous CoS-based coaxial nanocables with conductive CNT backbone core, well-confined CoS nanoparticle interlayer and conformal carbon coating shell (denoted as CNT@CoS@C) are developed through a bottom-up method and investigated as potential anode materials for sodium/lithium ion storage. The rationally constructed architecture successively achieves the integration of one-dimensional conducting networks, ultrafine active nanoparticles, well-developed mesoporosity and sophisticated surface modification via a layer-by-layer assembly strategy, thus upholding good structural/interfacial robustness and enhanced charge-transfer reaction kinetics. As a result, the CNT@CoS@C coaxial nanocables exhibit a high reversible capacity of 494 mAh g ?1 , stable cycling with more than 318 mAh g ?1 at 500 mA g ?1 over 500 cycles (corresponding to 74% capacity retention with 0.05% decay rate per cycle) and impressive rate capability (278 mAh g ?1 at 5000 mA g ?1 ) for sodium ion batteries (SIBs) and excellent electrochemical performance for lithium ion batteries (LIBs) (1010 mAh g ?1 during 200 cycles with no capacity loss and 467 mAh g ?1 at 5000 mA g ?1 ). In addition, the electrochemical experimental results and simulated calculations suggest that the CoS-based active species possesses better electrochemical properties in term of reaction reversibility and structural stability than its Co 3 O 4 -based counterpart with similar morphological features.
AU  - Han, F
AU  - Zhang, C
AU  - Sun, B
AU  - Tang, W
AU  - Yang, J
AU  - Li, X
DA  - 2017/07/01
DO  - 10.1016/j.carbon.2017.03.038
EP  - 742
JO  - Carbon
PB  - Elsevier
PY  - 2017/07/01
SP  - 731
TI  - Dual-carbon phase-protective cobalt sulfide nanoparticles with cable-type and mesoporous nanostructure for enhanced cycling stability in sodium and lithium ion batteries
VL  - 118
Y1  - 2017/07/01
Y2  - 2026/06/18
ER  -