|本期目录/Table of Contents|

[1]马丹阳,蔡周阳,徐彦,等.碳纳米管介孔碳/硫复合材料的制备及其电化学性能[J].浙江理工大学学报,2020,43-44(自科四):492-498.
 MA Danyang,CAI Zhouyang,XU Yan,et al.Preparation of carbon nanotubemesoporous carbon/sulfur composites and its electrochemical characteristics[J].Journal of Zhejiang Sci-Tech University,2020,43-44(自科四):492-498.
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碳纳米管介孔碳/硫复合材料的制备及其电化学性能()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第43-44卷
期数:
2020年自科四期
页码:
492-498
栏目:
出版日期:
2020-07-10

文章信息/Info

Title:
Preparation of carbon nanotubemesoporous carbon/sulfur composites and its electrochemical characteristics
文章编号:
1673-3851 (2020) 07-0492-07
作者:
马丹阳蔡周阳徐彦蔡玉荣
浙江理工大学材料科学与工程学院,杭州 310018
Author(s):
MA Danyang CAI Zhouyang XU Yan CAI Yurong
School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
碳纳米管介孔碳葡萄糖锂硫电池
分类号:
TM912
文献标志码:
A
摘要:
以碳纳米管作为基体、葡萄糖作为水热碳源,制备具有介孔结构的同轴碳纳米管碳材料,再将硫负载到该碳基材料后得到碳纳米管碳/硫复合材料,然后将其用作锂硫电池正极材料。利用SEM、TEM、XRD、TGA、BET等对该碳材料进行形貌结构表征。结果表明:该材料具有介孔结构,将其作为锂硫电池正极材料可有效地限制活性物质的损失。对所制备电池进行电化学测试,在02 C的倍率下碳纳米管碳/硫电极首圈放电比容量为1295 mAh/g,经循环200圈后的放电比容量为653 mAh/g,每圈容量衰减率为024%;当充放电倍率增加到10 C时,首圈放电比容量为823 mAh/g,循环200圈后放电比容量高达569 mAh/g,表明该材料作为锂硫电池正极具有优异的高倍率性能。采用该方法制备的介孔碳材料有效地缩短了离子和电子的传输路径,为实现大倍率充电、降低活性物质损失提供了新的解决思路。

参考文献/References:

[1] Xu R, Belharouak I, Zhang X F, et al. Insight into sulfur reactions in LiS batteries[J]. ACS Applied Materials & Interfaces, 2014, 6(24): 21938-21945.
[2] Manthiram A, Fu Y Z, Su Y S. Challenges and prospects of lithiumsulfur batteries[J]. Accounts of Chemical Research, 2013, 46(5): 1125-1134.
[3] Jozwiuk A, Sommer H, Janek J, et al. Fair performance comparison of different carbon blacks in lithiumsulfur batteries with practical mass loadingssimple design competes with complex cathode architecture[J]. Journal of Power Sources, 2015, 296: 454-461. [4] Sahore R, Estevez L P, Ramanujapuram A, et al. Highrate lithiumsulfur batteries enabled by hierarchical porous carbons synthesized via ice templation[J]. Journal of Power Sources, 2015, 297: 188-194.
[5] 梁宵, 温兆银, 刘宇. 高性能锂硫电池材料研究进展[J]. 化学进展, 2011, 23(Z1): 520-526.
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[7] Xu Z L, Kim J, Kang K. Carbon nanomaterials for advanced lithium sulfur batteries[J]. Nano Today, 2018, 19: 84-107.
[8] Zhang L L, Wang Y J, Niu Z Q, et al. Advanced nanostructured carbonbased materials for rechargeable lithiumsulfur batteries[J]. Carbon, 2019, 141: 400-416.
[9] Zhao Y, Wu W L, Li J X, et al. Encapsulating MWNTs into hollow porous carbon nanotubes: A tubeintube carbon nanostructure for highperformance lithiumsulfur batteries[J]. Advanced Materials, 2014, 26(30): 5113-5118.
[10] Oschatz M, Thieme S, Borchardt L, et al. A new route for the preparation of mesoporous carbon materials with high performance in lithiumsulphur battery cathodes[J]. Chemical Communications, 2013, 49(52): 5832.

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备注/Memo

备注/Memo:
收稿日期:2019-10-15
网络出版日期: 2020-03-05
基金项目:浙江理工大学基本科研业务费项目(2019Y006);浙江省新苗人才计划项目(2018R406066)
作者简介:马丹阳(1995-),女,河北保定人,硕士研究生,主要从事锂硫电池正极材料方面的研究
通信作者:蔡玉荣,E-mail:caiyr@zstu.edu.cn
更新日期/Last Update: 2020-07-06