Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage

Dequn Zheng; Jun Zhang; Wei Lv; Tengfei Cao; Siwei Zhang; Dong Qiu; Ying Tao; Yanbing He; Feiyu Kang; Quan-Hong Yang

doi:10.1039/C8CC01631C

Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage†

Dequn Zheng,‡^a Jun Zhang,‡^b Wei Lv,*^a Tengfei Cao,

^b Siwei Zhang,^b Dong Qiu,^a Ying Tao,^c Yanbing He,

^a Feiyu Kang^ab and Quan-Hong Yang

*^ac

Author affiliations

* Corresponding authors

^a Engineering Laboratory for Functionalized Carbon Materials, Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
E-mail: lv.wei@sz.tsinghua.edu.cn
Fax: +86-755-2603-6363
Tel: +86-755-2603-6363

^b Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen 518055, China

^c School of Chemical Engineering and Technology, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
E-mail: qhyangcn@tju.edu.cn

Abstract

Sulfur-functionalized graphene monoliths with a high sulfur fraction (16.8 wt%) were prepared to demonstrate a high capacity (∼400 mA h g⁻¹ at 0.1 A g⁻¹) and ultrafast (∼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.

Chemical Communications

Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Sulfur-functionalized three-dimensional graphene monoliths as high-performance anodes for ultrafast sodium-ion storage

Social activity

Search articles by author

Spotlight

Advertisements