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Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage
被引:1
|作者:
Zheng, Dequn
[1
]
Zhang, Jun
[2
]
Lv, Wei
[1
]
Cao, Tengfei
[2
]
Zhang, Siwei
[2
]
Qiu, Dong
[1
]
Tao, Ying
[3
,4
]
He, Yanbing
[1
]
Kang, Feiyu
[1
,2
]
Yang, Quan-Hong
[1
,3
,4
]
机构:
[1] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Engn Lab Functionalized Carbon Mat, Shenzhen 518055, Peoples R China
[2] Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China
[3] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
[4] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
基金:
中国国家自然科学基金;
关键词:
ENERGY-STORAGE;
BATTERIES;
NITROGEN;
OXIDE;
D O I:
10.1039/C8CC01631C
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Sulfur-functionalized graphene monoliths with a high sulfur fraction (16.8 wt%) were prepared to demonstrate a high capacity (similar to 400 mA h g(-1) at 0.1 A g(-1)) and ultrafast (similar to 120 mA h g(-1) at 5 A g(-1)) sodium ion storage. The reversible reaction of -C-S-x-C- with sodium ions contributes to the extra capacity while a 3D graphene network guarantees high rate capability.
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页码:4317 / 4320
页数:4
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