Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 4, Pages 1102-1106Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14178k
Keywords
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Funding
- National Natural Science Foundation of China [NSFC 21173049, J1103303]
- Research Fund for the Doctoral Program of Higher Education of China [RFDP: 20133514110002]
- Key Laboratory of Novel Thin Film Solar Cells, CAS
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Hierarchically porous rutile TiO2 microspheres composed of nanorods were fabricated by using a facile synthetic route. These materials were characterized by X-ray diffraction (XRD), N-2 adsorption-desorption, and scanning and transmission electron microscopy (SEM and TEM). Based on a series of experimental results, a self-assembly process for the formation of the hierarchical microspheres was also proposed. Furthermore, the hierarchically porous rutile TiO2 microspheres were used as the negative electrode material in lithium-ion batteries (LIBs) and demonstrated a large reversible charge-discharge capacity of 160.4 mA h g(-1) after 100 cycles at 1 C, which was much greater than commercial rutile TiO2 under the same conditions, indicating that these materials had excellent cycling stability and high rate performance.
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