https://scholars.lib.ntu.edu.tw/handle/123456789/409043
標題: | Carbon coated anatase TiO2 mesocrystals enabling ultrastable and robust sodium storage | 作者: | Zhang W. Lan T. Ding T. Wu N.-L. Wei M. |
關鍵字: | Carbon coating layer;Electrochemical property;Mesocrystal;Sodium-ion batteries;TiO2 | 公開日期: | 2017 | 卷: | 359 | 起(迄)頁: | 64-70 | 來源出版物: | Journal of Power Sources | 摘要: | Nanoporous anatase TiO2 mesocrystals with tunable architectures and crystalline phases were successfully fabricated in the presence of the butyl oleate and oleylamine. Especially, the introduced surfactants served as a carbon source, bring a uniform carbon layer (about 2¡V8 nm) for heightening the electronic conductivity. The carbon coated TiO2 mesocrystals assembled from crystalline tiny subunits have more space sites for sodium-ion storage. When the material was applied as an electrode material in rechargeable sodium-ion batteries, it exhibited a superior capacity of about 90 mA h g?1 at 20 C (1 C = 168 mA g?1) and a highly reversible capacity for 5000 cycles, which is the longest cycle life reported for sodium storage in TiO2 electrodes. ? 2017 Elsevier B.V. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409043 | ISSN: | 03787753 | DOI: | 10.1016/j.jpowsour.2017.05.040 |
顯示於: | 化學工程學系 |
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