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2,2′-Bis(3-hydroxy-1,4-naphthoquinone)/CMK-3 nanocomposite as cathode material for lithium-ion batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Duan, Wenchao Zhao, Qing Hong Cheng, Fangyi Liang, J. X. Chen, Jun |
| Copyright Year | 2014 |
| Abstract | An inorganic–organic nanocomposite with the filling of 2,2′-bis(3-hydroxy-1,4-naphthoquinone) (H2bhnq) in the pores of CMK-3 mesoporous carbon, which was synthesized by a simple impregnation method, was employed as a new cathode material for rechargeable lithium-ion batteries (LIBs). The characterization of the nanocomposite by wide-angle and low-angle X-ray diffraction, Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed the efficient loading of H2bhnp within the nanosized pores of CMK-3 carbon. The nanocomposite delivered an initial discharge capacity of 308.6 mAh g−1 at 0.1 C rate and a capacity retention of 202.6 mAh g−1 after 50 cycles. The reversible capacities were 124.0 mAh g−1 at a higher rate of 10 C. The enhanced cycling stability and high-rate capability is attributed to the fact that neat H2bhnq was distributed in the nanochannels of the conductive carbon framework CMK-3. This constrains the dissolution of the embedded H2bhnq. The results imply that the nanoconfinement with the pores of inorganic materials such as CMK-3 to fill organic active materials is important to improve the electrochemical performance of lithium-ion batteries. |
| Starting Page | 193 |
| Ending Page | 199 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C3QI00076A |
| Volume Number | 1 |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/getauthorversionpdf/C3QI00076A |
| Alternate Webpage(s) | https://doi.org/10.1039/C3QI00076A |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
