Petal-like MoS2 Nanosheets Space-Confined in Hollow Mesoporous Carbon Spheres for Enhanced Lithium Storage Performance

被引：321

作者：

Zhang, Xiue ^{[1
]}

Zhao, Rongfang ^{[1
]}

Wu, Qianhui ^{[1
]}

Li, Wenlong ^{[1
]}

Shen, Chao ^{[1
]}

Ni, Lubin ^{[1
]}

Yan, Hui ^{[2
]}

Diao, Guowang ^{[1
]}

Chen, Ming ^{[1
]}

机构：

[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

[2] Univ Louisiana Lafayette, Dept Chem, Lafayette, LA 70504 USA

来源：

ACS NANO | 2017年 / 11卷 / 08期

基金：

中国国家自然科学基金;

关键词：

yolk-shell structured MoS2@C; hollow mesoporous carbon spheres; in situ confined growth; enhanced electrochemistry performance; lithium-ion batteries; YOLK-SHELL NANOPARTICLES; FACILE SYNTHESIS; ANODE MATERIALS; GRAPHENE FOAM; NANOARCHITECTURE; MICROSPHERES;

D O I：

10.1021/acsnano.7b04078

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An innovative approach for efficient synthesis of petal-like molybdenum disulfide nanosheets inside hollow mesoporous carbon spheres (HMCSs), the yolk-shell structured MoS2@C, has been developed. HMCSs effectively control and confine in situ growth of MoS2 nanosheets and significantly improve the conductivity and structural stability of the hybrid material. The yolk-shell structured MoS2@C is proven to achieve high reversible capacity (993 mA h g(-1) at 1 A g(-1) after 200 cycles), superior rate capability (595 mA h g(-1) at a current density of 10 A g(-1)), and excellent cycle performance (962 mA.h g(-1) at 1 A CI after 1000 cycles and 624 mA h CI at 5 A g(-1) after 400 cycles) when evaluated as an anode material for lithium-ion batteries. This superior performance is attributed to the yolk-shell structure with conductive mesoporous carbon as the shell and the stack of two-dimensional MoS2 nanosheets as the yolk.

引用

页码：8429 / 8436

页数：8

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