A novel nanostructured spinel ZnCo2O4 electrode material: morphology conserved transformation from a hexagonal shaped nanodisk precursor and application in lithium ion batteries

被引:174
作者
Qiu, Yongcai [1 ]
Yang, Shihe [1 ]
Deng, Hong [2 ,3 ]
Jin, Limin [2 ,3 ]
Li, Weishan [2 ,3 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Chem, Nano Sci & Technol Program, Kowloon, Hong Kong, Peoples R China
[2] S China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China
[3] S China Normal Univ, Key Lab Electrochem Technol Energy Storage & Powe, Guangzhou 510006, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
ANODE MATERIAL; NEGATIVE-ELECTRODE; AMORPHOUS OXIDE; CO3O4; NANOTUBES; HIGH-CAPACITY; METAL-OXIDE; PERFORMANCE; NANOWIRES; COMPOSITE; PHASE;
D O I
10.1039/c0jm00101e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, we report a successful synthesis of porous ZnCo2O4 nanoflakes by a morphology-conserved and pyrolysis-induced transformation of novel hexagonally shaped, highly ordered, and inorganic-organic-inorganic layered hybrid nanodisks. It is shown that the hexagonal hybrid nanodisks are constructed from organic molecule (ethylene glycol)-directed assembly of inorganic bilayers. The assembly mechanism has been established by a number of structural and spectroscopic techniques. The porous ZnCo2O4 nanoflakes have also been tested as a lithium ion battery electrode, showing high capacity and high cyclability.
引用
收藏
页码:4439 / 4444
页数:6
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