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MOF-Templated Synthesis of Co3O4@TiO2 Hollow Dodecahedrons for High-Storage-Density Lithium-Ion Batteries.

ABSTRACT: Co3O4 nanostructures have been extensively studied as anode materials for rechargeable lithium-ion batteries (LIBs) because of their stability and high energy density. However, several drawbacks including low electrical transport and severe volume changes over a long period of operation have limited their utilities in LIBs. Rational composite design is becoming an attractive strategy to improve the performance and stability of potential lithium-ion-battery anode materials. Here, a simple method for synthesizing hollow Co3O4@TiO2 nanostructures using metal-organic frameworks as sacrificial templates is reported. Being used as an anode material for LIBs, the resulting composite exhibits remarkable cycling performance (1057 mAh g-1 at 100 mA g-1 after 100 cycles) and good rate performance. The optimized amorphous Co3O4@TiO2 hollow dodecahedron shows a significant improvement in electrochemical performance and shows a wide prospect as an advanced anode material for LIBs in the future.

SUBMITTER: Ding H 

PROVIDER: S-EPMC6705238 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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MOF-Templated Synthesis of Co<sub>3</sub>O<sub>4</sub>@TiO<sub>2</sub> Hollow Dodecahedrons for High-Storage-Density Lithium-Ion Batteries.

Ding Hui H   Zhang Xin-Ke XK   Fan Jia-Qi JQ   Zhan Xue-Qing XQ   Xie Lei L   Shi Dean D   Jiang Tao T   Tsai Fang-Chang FC  

ACS omega 20190802 8

Co<sub>3</sub>O<sub>4</sub> nanostructures have been extensively studied as anode materials for rechargeable lithium-ion batteries (LIBs) because of their stability and high energy density. However, several drawbacks including low electrical transport and severe volume changes over a long period of operation have limited their utilities in LIBs. Rational composite design is becoming an attractive strategy to improve the performance and stability of potential lithium-ion-battery anode materials.  ...[more]

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