Graphene-Rich Wrapped Petal-Like Rutile TiO2 tuned by Carbon Dots for High-Performance Sodium Storage

Graphene-Rich Wrapped Petal-Like Rutile TiO2 tuned by Carbon Dots for High-Performance Sodium Storage

Carbon dots inducing petal‐like rutile TiO2 wrapped by ultrathin graphene‐rich layers are proposed to fabricate superior anodes for sodium‐ion batteries, featuring high‐rate capabilities and long‐term cyclelife, benefiting from promoted electron transport and a shortened Na+ diffusion length. High c...

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Veröffentlicht in:Advanced materials (Weinheim) 2016-11, Vol.28 (42), p.9391-9399
Hauptverfasser: Zhang, Yan, Foster, Christopher W., Banks, Craig E., Shao, Lidong, Hou, Hongshuai, Zou, Guoqiang, Chen, Jun, Huang, Zhaodong, Ji, Xiaobo
Format: Artikel
Sprache:eng
Schlagworte:
carbon dots
graphene-rich
petal-like TiO2
sodium-ion batteries
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Zusammenfassung:Carbon dots inducing petal‐like rutile TiO2 wrapped by ultrathin graphene‐rich layers are proposed to fabricate superior anodes for sodium‐ion batteries, featuring high‐rate capabilities and long‐term cyclelife, benefiting from promoted electron transport and a shortened Na+ diffusion length. High capacities of 144.4 mA h g−1 (at 837.5 mA g−1) after 1100 cycles and 74.6 mA h g−1 (at 3350 mA g−1) after 4000 cycles are delivered outstandingly.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201601621