https://scholars.lib.ntu.edu.tw/handle/123456789/504193
標題: | C60(OH)12 and Its Nanocomposite for High-Performance Lithium Storage | 作者: | Li, Z. Wang, S.-H. Cui, J. Wang, Y. Zhang, J. Xu, P. Zhou, M. Wang, L. Wang, H.-L. |
關鍵字: | anode; C60(OH)12; fullerenes; graphene oxides; lithium ion batteries | 公開日期: | 2020 | 出版社: | American Chemical Society | 卷: | 14 | 期: | 2 | 起(迄)頁: | 1600-1608 | 來源出版物: | ACS Nano | 摘要: | Organic carbon materials, such as graphene and nanotubes, with a high specific capacity show promise in improving the energy density for lithium ion batteries (LiBs). Here, we report on the synthesis and characterization of C60(OH)12 and the C60(OH)12/graphene oxide (GO) composite and demonstrate their use as anode materials in LiBs. We find that the C60(OH)12/GO composite forms due to the chemical reactions between the carboxyl and epoxy groups of GO and the hydroxyl of C60(OH)12 nanoparticles and that C60(OH)12 uniformly grows on the surface of GO nanosheets. Using a suite of spectroscopy probes, we unequivocally show the mixing between C60(OH)12 and GO at the molecular level, which leads to superior battery performances. This composite has a reversible capacity of 1596 mAh g-1 at 0.2 A g-1, higher than the capacities of C60(OH)12 and GO. This composite has a superior cycling stability and excellent rate performance, making it a promising organic anode material for high-performance LiBs. © 2020 American Chemical Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/504193 | ISSN: | 19360851 | DOI: | 10.1021/acsnano.9b06791 | SDG/關鍵字: | Anodes; Fullerenes; Graphene; Graphene oxide; Organic carbon; Battery performance; C60(OH)12; Cycling stability; High specific capacity; Lithium storages; Molecular levels; Reversible capacity; Synthesis and characterizations; Lithium-ion batteries |
顯示於: | 凝態科學研究中心 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。