Porous carbon-coated NaTi2(PO4)(3) with superior rate and low-temperature properties
文献类型：期刊论文
| 作者 | Hu, Qiao; Yu, Mufan; Liao, Jiaying; Wen, Zhaoyin1; Chen, Chunhua |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2018 |
| 卷号 | 6期号:5页码:2365 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c7ta10207k |
| 英文摘要 | Nanosized porous carbon-coated NaTi2(PO4)(3) (NTP) particles with superior rate and low-temperature properties are synthesized by a hydrothermal process combined with different carbon coating steps. Their structures and electrochemical performances are analyzed by X-ray diffraction, scanning/transmission electron microscopies, Raman spectroscopy, N-2 adsorption/desorption measurement and galvanostatic cell cycling. The optimized carbon-coated NTP sample NTP@C-2 shows superb rate performance with a charge capacity of 110.9 mA h g(-1) at 30C rate, i.e. 97.0% retention of its capacity at 0.5C. After 1000 cycles at 10C, the reversible capacity can still reach 105.6 mA h g(-1) with a very slow capacity decay of 0.0022% per cycle. Even at -20 degrees C, NTP@C-2 can still deliver a capacity of 97.6 mA h g(-1) at 10C and 61.1 mA h g(-1) at 20C. These excellent electrochemical performances can be attributed to both the nanosized porous architecture and the highly graphitic carbon coating. The use of a small amount of Na3V2(PO4)(3) intermediate powder accounts for the formation of more sp(2)-type carbon coating. Such an NTP powder provides a promising anode material for high power sodium-ion batteries. |
| 学科主题 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000423981200053 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | This study is supported by the National Science Foundation of China (grant no. 51577175), NSAF (grant no. U1630106), Hefei Center of Materials Science and Technology (2014FXZY006) and Education Ministry of Anhui Province (KJ2014ZD36). We are also grateful to Elementec Ltd. in Suzhou. ; This study is supported by the National Science Foundation of China (grant no. 51577175), NSAF (grant no. U1630106), Hefei Center of Materials Science and Technology (2014FXZY006) and Education Ministry of Anhui Province (KJ2014ZD36). We are also grateful to Elementec Ltd. in Suzhou. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24497]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Qiao,Yu, Mufan,Liao, Jiaying,et al. Porous carbon-coated NaTi2(PO4)(3) with superior rate and low-temperature properties[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(5):2365, 2370. |
| APA | Hu, Qiao,Yu, Mufan,Liao, Jiaying,Wen, Zhaoyin,&Chen, Chunhua.(2018).Porous carbon-coated NaTi2(PO4)(3) with superior rate and low-temperature properties.JOURNAL OF MATERIALS CHEMISTRY A,6(5),2365. |
| MLA | Hu, Qiao,et al."Porous carbon-coated NaTi2(PO4)(3) with superior rate and low-temperature properties".JOURNAL OF MATERIALS CHEMISTRY A 6.5(2018):2365. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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