Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries
Novel hierarchical porous TiO2(B)/anatase microspheres have been prepared by a facile solvothermal approach and evaluated as anode materials for advanced lithium-ion battery applications. The obtained porous microspheres, with diameters ranging from 2.5 to 5.5 micrometers, are assembled by porous Ti...
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| Format: | Journal Article |
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Pergamon
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/31361 |
| _version_ | 1848753358173634560 |
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| author | Wang, J. Zhou, Y. Shao, Zongping |
| author_facet | Wang, J. Zhou, Y. Shao, Zongping |
| author_sort | Wang, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Novel hierarchical porous TiO2(B)/anatase microspheres have been prepared by a facile solvothermal approach and evaluated as anode materials for advanced lithium-ion battery applications. The obtained porous microspheres, with diameters ranging from 2.5 to 5.5 micrometers, are assembled by porous TiO2 nanosheets with the lateral size of a few micrometers and thickness of ~13 nm; whilst, the nanosheets are formed by aggregations of nanosized primary TiO2 crystallites (~5–7 nm). The hierarchical porous structures are verified by BET test results with a typical type-IV isotherm curve, a high surface area (~186.2 m2 g-1) and two kinds of pores (~4 and 8.3 nm). The hierarchical porous TiO2 microspheres present excellent electrochemical performance with high Li storage capacity and excellent high-rate cycling capability (a specific capacity of 117 mAh g-1 at the rate of 4000 mA g-1 after 4500 cycles), which might be attributed to the enhanced Li+ diffusion and electronic conductivity induced by the hierarchical microstructures, the TiO2(B)/anatase heterojunction, and the pseudocapacitance of TiO2(B). Such hierarchical porous materials might be promising for applications in advanced power type lithium-ion batteries. |
| first_indexed | 2025-11-14T08:23:14Z |
| format | Journal Article |
| id | curtin-20.500.11937-31361 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:23:14Z |
| publishDate | 2013 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-313612017-09-13T15:21:24Z Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries Wang, J. Zhou, Y. Shao, Zongping Hierarchical microstructure Lithium-ion battery Titania Porous microsphere Anode Novel hierarchical porous TiO2(B)/anatase microspheres have been prepared by a facile solvothermal approach and evaluated as anode materials for advanced lithium-ion battery applications. The obtained porous microspheres, with diameters ranging from 2.5 to 5.5 micrometers, are assembled by porous TiO2 nanosheets with the lateral size of a few micrometers and thickness of ~13 nm; whilst, the nanosheets are formed by aggregations of nanosized primary TiO2 crystallites (~5–7 nm). The hierarchical porous structures are verified by BET test results with a typical type-IV isotherm curve, a high surface area (~186.2 m2 g-1) and two kinds of pores (~4 and 8.3 nm). The hierarchical porous TiO2 microspheres present excellent electrochemical performance with high Li storage capacity and excellent high-rate cycling capability (a specific capacity of 117 mAh g-1 at the rate of 4000 mA g-1 after 4500 cycles), which might be attributed to the enhanced Li+ diffusion and electronic conductivity induced by the hierarchical microstructures, the TiO2(B)/anatase heterojunction, and the pseudocapacitance of TiO2(B). Such hierarchical porous materials might be promising for applications in advanced power type lithium-ion batteries. 2013 Journal Article http://hdl.handle.net/20.500.11937/31361 10.1016/j.electacta.2013.03.015 Pergamon restricted |
| spellingShingle | Hierarchical microstructure Lithium-ion battery Titania Porous microsphere Anode Wang, J. Zhou, Y. Shao, Zongping Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| title | Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| title_full | Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| title_fullStr | Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| title_full_unstemmed | Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| title_short | Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| title_sort | porous tio2(b)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries |
| topic | Hierarchical microstructure Lithium-ion battery Titania Porous microsphere Anode |
| url | http://hdl.handle.net/20.500.11937/31361 |