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High specific capacity of TiO2-graphene nanocomposite as an anode material for lithium-ion batteries in an enlarged potential window
| Content Provider | Semantic Scholar |
|---|---|
| Author | Cai, Dandan Lian, Peichao Zhu, Xuefeng Liang, Shuzhao Yang, Weishen Wang, Haihui |
| Copyright Year | 2012 |
| Abstract | Abstract TiO 2 -graphene nanocomposite was first synthesized by a facile gas/liquid interface reaction. The structure and morphology were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Brunauer–Emmett–Teller measurements. The results indicate that TiO 2 nanoparticles (ca. 10 nm in mean grain size) were successfully deposited onto the graphene sheets during the gas/liquid interfacial reaction process. The electrochemical performance was evaluated by using coin-type cells versus metallic lithium in an enlarged potential window of 0.01–3.0 V. A high specific charge capacity of 499 mAh g −1 was obtained at a current density of 100 mA g −1 . More strikingly, the TiO 2 -graphene nanocomposite exhibits excellent rate capability, even at a high current density of 3000 mA g −1 , the specific charge capacity was still as high as 150 mAh g −1 . The high specific charge capacities can be attributed to the facts that graphene possesses high electronic conductivity, and the lithium storage performance of graphene is delivered during discharge/charge processes of TiO 2 -graphene nanocomposite between 0.01 and 3.0 V. |
| Starting Page | 65 |
| Ending Page | 72 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.electacta.2012.03.170 |
| Volume Number | 74 |
| Alternate Webpage(s) | http://www.scut.hhwang.ycym.com/Uploads/201703/58c921b46f7b5.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
