| CTAB辅助水热合成球状纳米花MoS2/C复合材料及其电化学性能研究 |
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| 引用本文： | 蔡亚菱,李亚飞,王增梅,张 耀,陈 坚,郭新立. CTAB辅助水热合成球状纳米花MoS2/C复合材料及其电化学性能研究[J]. 无机材料学报, 2016, 31(12): 1289-1294. DOI: 10.15541/jim20160042 |
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| 作者姓名： | 蔡亚菱 李亚飞 王增梅 张 耀 陈 坚 郭新立 |
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| 作者单位： | (东南大学 材料科学与工程学院, 江苏省土木工程材料重点实验室; 南京211189) |
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| 基金项目： | 国家自然科学基金(51002029) National Natural Science Foundation of China (51002029) |
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| 摘 要： | 以钼酸钠(Na2MoO4·2H2O)、硫脲(NH2CSNH2)、CTAB为原料, 利用水热法合成了MoS2/C球状纳米花复合材料。通过XRD、SEM、TEM、TG等分析测试方法, 研究了不同CTAB添加量对MoS2/C复合材料的微观结构、表面形貌的影响规律, 结果显示, 有部分无定形碳嵌入了MoS2层间, 并抑制了MoS2(002)面的堆积。电化学测试表明: 与纯MoS2相比, MoS2/C复合材料具有更好的电化学性能, 当加入0.025 g CTAB时首次放电比容量达到730 mAh/g, 在100 mA/g的电流密度下经过100次循环比容量稳定在415 mAh/g。在此基础上讨论了MoS2/C球状纳米花复合材料的可能生长机理以及对材料电化学性能的影响规律。
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| 关 键 词： | MoS2/C复合材料 锂离子电池 负极材料 |
| 收稿时间： | 2016-01-25 |
| 修稿时间： | 2016-04-23 |
CTAB-assisted Synthesis of MoS2/C Nano-flowers with Improved Electrochemical Performances for Lithium Ion Batteries |
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| CAI Ya-Ling,LI Ya-Fei,WANG Zeng-Mei,ZHANG Yao,CHEN Jian,GUO Xin-Li. CTAB-assisted Synthesis of MoS2/C Nano-flowers with Improved Electrochemical Performances for Lithium Ion Batteries[J]. Journal of Inorganic Materials, 2016, 31(12): 1289-1294. DOI: 10.15541/jim20160042 |
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| Authors: | CAI Ya-Ling LI Ya-Fei WANG Zeng-Mei ZHANG Yao CHEN Jian GUO Xin-Li |
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| Affiliation: | (Jiangsu Key Laboratory of Construction Materials, Southeast University; Nanjing 211189, China) |
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| Abstract: | MoS2/C composites were prepared by a simple CTAB assistant thermal reduction method using sodium molybdate, thiourea and CTAB as starting materials. The samples were characterized by XRD, SEM, TEM, and TG. It is confirmed that the amorphous carbon is partially inserted into the interlayer spaces of molybdenum disulfide and inhibits the accumulation of (002) plane. Meanwhile, the electrochemical properties were studied in detail. As a consequence, the MoS2/C composites have better electrochemical performance than pure MoS2. The composite synthesized by adding 0.025 g CTAB shows the best electrochemical performance. The initial discharge capacity was 730 mAh/g and a stable capacity above 415 mAh/g was retained for 100 cycles tested at 100 mA/g. At last, the possible growth mechanism of the MoS2/a-C composites and the influence of different micro-morphology are also calculated. |
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| Keywords: | MoS2/C composites lithium ion batteries anode materials |
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