Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries
Graphene/metal oxide nanocomposites are promising electrode materials for lithium-ion batteries (LIBs), in which synergistic effects between the two components may benefit the overall capacity, rate capability and cycling stability. Here, we report a simple and easy scale-up method for the preparati...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Pergamon
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/42772 |
| _version_ | 1848756511127371776 |
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| author | Zhu, Y. Xu, X. Chen, G. Zhong, Y. Cai, R. Li, L. Shao, Zongping |
| author_facet | Zhu, Y. Xu, X. Chen, G. Zhong, Y. Cai, R. Li, L. Shao, Zongping |
| author_sort | Zhu, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Graphene/metal oxide nanocomposites are promising electrode materials for lithium-ion batteries (LIBs), in which synergistic effects between the two components may benefit the overall capacity, rate capability and cycling stability. Here, we report a simple and easy scale-up method for the preparation of high-quality reduced graphite oxide-MoO2 (rGO-MoO2) nanobelt composites, which demonstrate attractive electrochemical performance as LIB anodes. MoO3 nanobelts are first prepared by a simple hydrothermal route and distributed homogeneously in water, and then graphite oxide (GO) is prepared by a modified Hummers method and introduced into the solution. Both materials slowly self-assemble to form GO-MoO3 nanocomposite in a surfactant-free manner. After thermal reduction, rGO-MoO2 nanobelt composites are obtained, as confirmed by FE-SEM and TEM. Using such composite as LIB electrodes, a reversible capacity of 754 mA h g-1 is obtained after 80 cycles at 0.2 A g-1, and the electrode also demonstrates superior rate capabilities. These results are comparable to or even higher than those of other reported graphene-MoO2 composites, which are fabricated in more complicated fashions, thus rendering the current product as highly promising electrode materials for practical use. |
| first_indexed | 2025-11-14T09:13:21Z |
| format | Journal Article |
| id | curtin-20.500.11937-42772 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:13:21Z |
| publishDate | 2016 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-427722017-09-13T15:15:02Z Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries Zhu, Y. Xu, X. Chen, G. Zhong, Y. Cai, R. Li, L. Shao, Zongping Graphene/metal oxide nanocomposites are promising electrode materials for lithium-ion batteries (LIBs), in which synergistic effects between the two components may benefit the overall capacity, rate capability and cycling stability. Here, we report a simple and easy scale-up method for the preparation of high-quality reduced graphite oxide-MoO2 (rGO-MoO2) nanobelt composites, which demonstrate attractive electrochemical performance as LIB anodes. MoO3 nanobelts are first prepared by a simple hydrothermal route and distributed homogeneously in water, and then graphite oxide (GO) is prepared by a modified Hummers method and introduced into the solution. Both materials slowly self-assemble to form GO-MoO3 nanocomposite in a surfactant-free manner. After thermal reduction, rGO-MoO2 nanobelt composites are obtained, as confirmed by FE-SEM and TEM. Using such composite as LIB electrodes, a reversible capacity of 754 mA h g-1 is obtained after 80 cycles at 0.2 A g-1, and the electrode also demonstrates superior rate capabilities. These results are comparable to or even higher than those of other reported graphene-MoO2 composites, which are fabricated in more complicated fashions, thus rendering the current product as highly promising electrode materials for practical use. 2016 Journal Article http://hdl.handle.net/20.500.11937/42772 10.1016/j.electacta.2016.06.139 Pergamon restricted |
| spellingShingle | Zhu, Y. Xu, X. Chen, G. Zhong, Y. Cai, R. Li, L. Shao, Zongping Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries |
| title | Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries |
| title_full | Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries |
| title_fullStr | Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries |
| title_full_unstemmed | Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries |
| title_short | Surfactant-free self-assembly of reduced graphite oxide-MoO2 nanobelt composites used as electrode for lithium-ion batteries |
| title_sort | surfactant-free self-assembly of reduced graphite oxide-moo2 nanobelt composites used as electrode for lithium-ion batteries |
| url | http://hdl.handle.net/20.500.11937/42772 |