| Sno2-based hierarchical nanomicrostructures: facile synthesis and their applications in gas sensors and lithium-ion batteries | |
| Jiang, Ling-Yan3; Wu, Xing-Long3; Guo, Yu-Guo1; Wan, Li-Jun | |
| 刊名 | Journal of physical chemistry c
 |
| 2009-08-13 | |
| 卷号 | 113期号:32页码:14213-14219 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/jp904209k |
| 通讯作者 | Guo, yu-guo(ygguo@iccas.ac.cn) |
| 英文摘要 | Hierarchical flower-like sno2 nanomicrostructure has been synthesized via a solvent-induced and surfactant assisted self-assembly technique at ambient temperature followed by a suitable thermal treatment. a possible growth mechanism governing the formation of such a nanomicrostructure is discussed. the applications in gas sensors for detecting co and h-2 reveal that the obtained sno2 material exhibits a remarkable sensitivity and extremely low detecting limit (5 ppm), as well as good reproducibility and short response/recovery times, which benefit a lot from its unique flower-like nanomicrostructure consisting of three-dimensional interconnected sno2 nanoparticles and nanopores. in order to use the present sno2 nanomicrostructure in lithium-ion batteries, carbon coatings are introduced to the surface of them by pyrolysis of glucose under hydrothermal conditions. both sno2-c and sn-c nanocomposites are obtained by taking thermal treatment of the precursors at different temperatures. the conversion processes are investigated by thermogravimetrics (tg) analyses under n-2 and air atmosphere. all three sn-based nanostructures are investigated with xrd, sem, tem, and electrochemical tests toward lithium storage. it is found that the sno2-c composite shows a very high reversible capacity (similar to 700 ma h g(-1) after 20 cycles) and high coulombic efficiency in the initial few cycles, as well as significantly enhanced cycling performance compared with bare sno2 nanostructure and sn-c nanocomposite, exhibiting great potential as an anode material in lithium-ion batteries. the improvements can be attributed to the outside carbon coating layer as well as the in situ formed buffer, li2o matrix, upon initial li uptake. |
| WOS关键词 | SN-C COMPOSITE ; ANODE MATERIAL ; ELECTROCHEMICAL PERFORMANCE ; STORAGE PROPERTIES ; ENERGY-CONVERSION ; CARBON NANOTUBES ; MESOPOROUS SNO2 ; HOLLOW CARBON ; ALLOY ANODE ; IN-SITU |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000268661300025 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2399139 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Guo, Yu-Guo |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.BNLMS, Beijing 100190, Peoples R China 3.CAS, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Ling-Yan,Wu, Xing-Long,Guo, Yu-Guo,et al. Sno2-based hierarchical nanomicrostructures: facile synthesis and their applications in gas sensors and lithium-ion batteries[J]. Journal of physical chemistry c,2009,113(32):14213-14219. |
| APA | Jiang, Ling-Yan,Wu, Xing-Long,Guo, Yu-Guo,&Wan, Li-Jun.(2009).Sno2-based hierarchical nanomicrostructures: facile synthesis and their applications in gas sensors and lithium-ion batteries.Journal of physical chemistry c,113(32),14213-14219. |
| MLA | Jiang, Ling-Yan,et al."Sno2-based hierarchical nanomicrostructures: facile synthesis and their applications in gas sensors and lithium-ion batteries".Journal of physical chemistry c 113.32(2009):14213-14219. |
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