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Reduced graphene oxide supported highly porous V2O5 spheres as a high-power cathode material for lithium ion batteries.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rui, Xianhong Zhu, Jixin Sim, Daohao Xu, Chen Zeng, Yi Hng, Huey Hoon Lim, Tuti Mariana Yan, Qingyu Alex |
| Copyright Year | 2011 |
| Abstract | Reduced graphene oxide (rGO) supported highly porous polycrystalline V(2)O(5) spheres (V(2)O(5)/rGO) were prepared by using a solvothermal approach followed by an annealing process. Initially, reduced vanadium oxide (rVO) nanoparticles with sizes in the range of 10-50 nm were formed through heterogeneous nucleation on rGO sheets during the solvothermal process. These rVO nanoparticles were oxidized to V(2)O(5) after the annealing process in air at 350 °C and assembled into polycrystalline porous spheres with sizes of 200-800 nm. The weight ratio between the rGO and V(2)O(5) is tunable by changing the weight ratio of the precursors, which in turn affects the morphology of V(2)O(5)/rGO composites. The V(2)O(5)/rGO composites display superior cathode performances with highly reversible specific capacities, good cycling stabilities and excellent rate capabilities (e.g. 102 mA h g(-1) at 19 C). |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c1nr10879d |
| PubMed reference number | 21989744 |
| Journal | Medline |
| Volume Number | 3 |
| Issue Number | 11 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/nr/c1/c1nr10879d/c1nr10879d.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/c1nr10879d |
| Journal | Nanoscale |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
