| 石墨烯/CdS量子点复合材料的电化学性能研究 |
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| 引用本文： | 陶丽华,蔡燕,李在均,任国晓,刘俊康.石墨烯/CdS量子点复合材料的电化学性能研究[J].无机材料学报,2011,26(9):912-916. |
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| 作者姓名： | 陶丽华 蔡燕 李在均 任国晓 刘俊康 |
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| 作者单位： | (1. 江南大学 化学与材料工程学院, 无锡214122; 2. 浙江赞宇科技股份有限公司, 杭州310009 ) |
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| 基金项目： | 国家自然科学基金(20771045); 浙江省自然科学基金(Y4100729)~~ |
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| 摘 要： | 原位合成法制备石墨烯/CdS量子点复合材料, 并考察其作为锂离子电池负极材料的电化学性能. 交流阻抗揭示电解质在石墨烯/CdS量子点复合材料表面形成稳定的SEI膜, 首次放电比容量达1264.7mAh/g, 循环20次后可逆容量为888.9mAh/g. 结果显示CdS量子点提高了石墨烯结构的稳定和层间传导性, 从而导致复合材料的电化学性能明显优于单独的石墨烯材料.
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| 关 键 词： | 石墨烯 硫化镉 量子点 锂离子电池 复合材料 |
| 收稿时间： | 2010-10-28 |
| 修稿时间： | 2011-01-18 |
Electrochemical Properties of Graphene/CdS Quantum Dot Composites |
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| TAO Li-Hua,CAI Yan,LI Zai-Jun,REN Guo-Xiao,LIU Jun-Kang.Electrochemical Properties of Graphene/CdS Quantum Dot Composites[J].Journal of Inorganic Materials,2011,26(9):912-916. |
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| Authors: | TAO Li-Hua CAI Yan LI Zai-Jun REN Guo-Xiao LIU Jun-Kang |
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| Affiliation: | (1. School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; 2. Zhejiang Zanyu Technology Co., LTD., Hangzhou 310009, China) |
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| Abstract: | Graphene/CdS quantum dot composites were prepared via in situ synthesis and its electrochemical per-formances as anode material for lithium-ion batteries were investigated.Ac impendence spectra reveal that electro-lytes form a fine solid electrolyte interphase film(SEI) on the surface of the graphene/CdS quantum dot composites.The initial discharge capacity of the lithium-ion battery using graphene/CdS quantum dot as anode is about to 1264.7mAh/g and reversible capacity is 888.9mAh/g after 20 cycles.The res... |
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| Keywords: | graphene CdS quantum dot lithium-ion battery composite materials |
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