Boron-Doped, Carbon-Coated SnO2/Graphene Nanosheets for Enhanced Lithium Storage

被引：29

作者：

Liu, Yuxin ^{[2
]}

Liu, Ping ^{[1
]}

Wu, Dongqing ^{[1
]}

Huang, Yanshan ^{[1
]}

Tang, Yanping ^{[1
]}

Su, Yuezeng ^{[3
]}

Zhang, Fan ^{[1
]}

Feng, Xinliang ^{[1
,4
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai 200240, Peoples R China

[4] Tech Univ Dresden, Fachrichtung Chem & Lebensmittelchem, D-01062 Dresden, Germany

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2015年 / 21卷 / 14期

关键词：

boron; doping; graphene; lithium-ion batteries; nanostructures; LI-ION BATTERIES; ANODE MATERIALS; HYDROTHERMAL CARBONIZATION; HYBRID NANOSHEETS; FACILE SYNTHESIS; GRAPHENE SHEETS; SUPERIOR ANODE; HIGH-CAPACITY; TIN OXIDE; PERFORMANCE;

D O I：

10.1002/chem.201406029

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heteroatom doping is an effective method to adjust the electrochemical behavior of carbonaceous materials. In this work, boron-doped, carbon-coated SnO2/graphene hybrids (BCTGs) were fabricated by hydrothermal carbonization of sucrose in the presence of SnO2/graphene nanosheets and phenylboronic acid or boric acid as dopant source and subsequent thermal treatment. Owing to their unique 2D core-shell architecture and B-doped carbon shells, BCTGs have enhanced conductivity and extra active sites for lithium storage. With phenylboronic acid as B source, the resulting hybrid shows outstanding electrochemical performance as the anode in lithium-ion batteries with a highly stable capacity of 1165 mA hg(-1) at 0.1 Ag-1 after 360 cycles and an excellent rate capability of 600 mA hg(-1) at 3.2 Ag-1, and thus outperforms most of the previously reported SnO2-based anode materials.

引用

页码：5617 / 5622

页数：6

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