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The rational design of hierarchical MoS2 nanosheet hollow spheres sandwiched between carbon and TiO2@graphite as an improved anode for lithium-ion batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Faze Li, Fanggang Zheng, Maojun Li, Yongxiang |
| Copyright Year | 2019 |
| Abstract | Molybdenum disulfide (MoS2) shows high capacity but suffers from poor rate capability and rapid capacity decay, which greatly limit its practical applications in lithium-ion batteries. Herein, we successfully prepared MoS2 nanosheet hollow spheres encapsulated into carbon and titanium dioxide@graphite, denoted as TiO2@G@MoS2@C, via hydrothermal and polymerization approaches. In this hierarchical architecture, the MoS2 hollow sphere was sandwiched by graphite and an amorphous carbon shell; thus, TiO2@G@MoS2@C exhibited effectively enhanced electrical conductivity and withstood the volume changes; moreover, the aggregation and diffusion of the MoS2 nanosheets were restricted; this advanced TiO2@G@MoS2@C fully combined the advantages of a three-dimensional architecture, hollow structure, carbon coating, and a mechanically robust TiO2@graphite support, achieving improved specific capacity and long-term cycling stability. In addition, it exhibited the high reversible specific capacity of 823 mA h g−1 at the current density of 0.1 A g−1 after 100 cycles, retaining almost 88% of the initial reversible capacity with the high coulombic efficiency of 99%. |
| Starting Page | 1957 |
| Ending Page | 1964 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C9NA00019D |
| Volume Number | 1 |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/articlepdf/2019/na/c9na00019d |
| Alternate Webpage(s) | https://doi.org/10.1039/C9NA00019D |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
