Ultrafast lithium storage in TiO2-bronze nanowires/N-doped graphene nanocomposites
文献类型：期刊论文
| 作者 | Yan, Xiao1,2 ; Li, Yanjuan3; Li, Malin2; Jin, Yongcheng1; Du, Fei2; Chen, Gang2,4; Wei, Yingjin2
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
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| 出版日期 | 2015 |
| 卷号 | 3期号:8页码:4180-4187 |
| 英文摘要 | A TiO2-bronze/N-doped graphene nanocomposite (TiO2-B/NG) is prepared by a facile hydrothermal combined with hydrazine monohydrate vapor reduction method. The material exhibits macro-and meso-porosity with a high specific surface area of 163.4 m(2) g(-1). X-Ray photoelectron spectroscopy confirms the successful doping of nitrogen in the graphene sheets. In addition, the TiO2-B nanowires are substantially bonded to the NG sheets. Cyclic voltammetry and electrochemical impedance spectroscopy show that the N-doped graphene improves the electron and Li ion transport in the electrode which results in better electrochemical kinetics than that of the pristine TiO2-B nanowires. As a result, the charge transfer resistance of the TiO2-B/NG electrode is significantly reduced. In addition, the lithium diffusion coefficient of TiO2-B/NG increases by about five times with respect to that of pristine TiO2-B. The TiO2-B/NG composite exhibits a remarkably enhanced electrochemical performance compared to that of TiO2-B. It shows a discharge capacity of 220.7 mA h g(-1) at the 10C rate with a capacity retention of 96% after 1000 cycles. In addition, it can deliver a discharge capacity of 101.6 mA h g(-1) at an ultra high rate of 100C, indicating its great potential for use in high power lithium ion batteries. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | LI-ION BATTERIES ; OXYGEN REDUCTION REACTION ; CARBON NANOTUBES ; ANODE MATERIAL ; ANATASE TIO2 ; RUTILE TIO2 ; ELECTROCHEMICAL PERFORMANCE ; NITROGEN ; ELECTRODE ; CAPACITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349667700010 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/6095]  |
| 专题 | 青岛生物能源与过程研究所_先进界面技术团队 |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Jilin Univ, Coll Phys, Key Lab Phys & Technol Adv Batteries, Minist Educ, Changchun 130012, Peoples R China 3.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China 4.Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Xiao,Li, Yanjuan,Li, Malin,et al. Ultrafast lithium storage in TiO2-bronze nanowires/N-doped graphene nanocomposites[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(8):4180-4187. |
| APA | Yan, Xiao.,Li, Yanjuan.,Li, Malin.,Jin, Yongcheng.,Du, Fei.,...&Wei, Yingjin.(2015).Ultrafast lithium storage in TiO2-bronze nanowires/N-doped graphene nanocomposites.JOURNAL OF MATERIALS CHEMISTRY A,3(8),4180-4187. |
| MLA | Yan, Xiao,et al."Ultrafast lithium storage in TiO2-bronze nanowires/N-doped graphene nanocomposites".JOURNAL OF MATERIALS CHEMISTRY A 3.8(2015):4180-4187. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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