Abstract
In this study, NiO was synthesized via a facile method and coated on the surface of a TiO2 anode material doped with rGO (reduced graphene oxide). TiO2/NiO/rGO nanocomposite structures were synthesized by a two-step solid-state method, and their lithium storage capacity was investigated and compared with that of both as-prepared TiO2/NiO and pure TiO2. The coating over the TiO2 surface helped to attain a higher capacity and cycle stability than that without it, even at high current rates. The TiO2/NiO/rGO nanocomposites show excellent performance with an initial discharge capacity of up to 324 mAh/g between 0 and 3 V vs Li at 20 mA/g. Furthermore, at a high current density of 100 mA/g, the TiO2/NiO/rGO nanocomposite still achieved a capacity of 245 mAh/g after 200 cycles. This excellent performance could be attributed to the stable framework and high electronic conductivity within the TiO2/NiO/rGO nanocomposite.
| Original language | English |
|---|---|
| Pages (from-to) | 873-878 |
| Number of pages | 6 |
| Journal | Journal of the Less-Common Metals |
| Volume | 774 |
| Early online date | 3 Oct 2018 |
| DOIs | |
| Publication status | Published - 5 Feb 2019 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018 Elsevier B.V.
Funding
This work was financially supported by National Natural Science Foundation of China (No. U1361119 , 61503124), the Key Scientific Research Project for Higher Education of Henan Province (No. 16A150009), the Natural Science Foundation of Henan Province (No. 162300410119 , 162300410115), the Postdoctoral Science Foundation of Henan Province (NO. 166115) and the Innovative Research Team (in Science and Technology) in the University of Henan Province (No. 16IRTSTHN005).
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Anode materials
- Lithium-ion battery
- rGO
- TiO2/NiO
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