[1]熊云奎.二氧化钛-聚萘/硫正电极的制备及其电化学性能[J].江西师范大学学报(自然科学版),2016,40(03):225-230.
　XIONG Yunkui.The Preparation and Electrochemical Performance of Titanium Dioxide-Polyperinaphthalene/Sulfur Cathode Material for Lithium-Sulfur Battery[J].Journal of Jiangxi Normal University:Natural Science Edition,2016,40(03):225-230.
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二氧化钛-聚萘/硫正电极的制备及其电化学性能()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
40
期数:
2016年03期
页码:
225-230
栏目:
出版日期:
2016-07-01

文章信息/Info

Title:
The Preparation and Electrochemical Performance of Titanium Dioxide-Polyperinaphthalene/Sulfur Cathode Material for Lithium-Sulfur Battery
作者:
熊云奎
江西师范大学江西省精细化工重点实验室,江西 南昌 330027
Author(s):
XIONG Yunkui
Jiangxi Fine Chemical Key Laboratory,Jiangxi Normal University,Nanchang Jiangxi 30027,China
关键词:
3; 4; 9; 10-二萘嵌苯;  聚萘;  复合材料;  二氧化钛-PPN/S;  正极材料
Keywords:
3; 4; 9; 10-perylenetetracarboxylic acid;  poly-peri-naphthalene;  composite material;  TiO2-PPN/S;  cathode material
分类号:
O 646
文献标志码:
A
摘要:
以3,4,9,10-二萘嵌苯(PTCDA)为原料成功合成聚萘(PPN),然后利用硫代硫酸钠为硫源,通过化学还原法制备聚萘/硫(PPN/S)复合材料,接着在PPN/S外表面包覆一层二氧化钛(TiO2),最后制备出二氧化钛-聚萘/硫(TiO2-PPN/S)复合材料.采用扫描电镜、X-射线衍射和热重分析对复合材料TiO2-PPN/S进行表征; 采用充放电测试系统和电化学工作站对TiO2-PPN/S电极的电化学性能进行测试.结果表明:PPN/S复合材料表面被TiO2成功包覆,制得一种新型TiO2-PPN/S复合材料; TiO2-PPN/S电极具有良好的循环稳定性,在电流密度为400 mA·g-1时,首次放电容量达到1 334.8 mA·h·g-1,循环150次后,放电容量仍保持在691.4 mA·g-1; 与含硫量相当的PPN/S电极相比,TiO2-PPN/S电极具有更佳的电化学性能.
Abstract:
Poly-peri-naphthalene has been prepared by 3,4,9,10-perylenetetracarboxylic acid ahydride,sodium thiosulfate was as sulfur source,and poly-peri-naphthalene/sulfur was prepared,then poly-peri-naphthalene/sulfur was wrapped by titanium dioxide.At last,TiO2-PPN/S was synthesized.The TiO2-PPN/S composite material was characterized by SEM,XRD and TGA.The electrode of TiO2-PPN/S was tested by charge and discharge system and electrochemical workstation.The results show TiO2-PPN/S composite material was successfully synthesized.The electrode of TiO2-PPN/S has a good cycle property,the first discharge specific capacity is 1 334.8mA·h·g-1 at 400 mA·h·g-1,after 150 cycles,the discharge special capacity still maintain 691.4 mA·g-1.To comparative sulfur content of PPN/S electrode,the electrode TiO2-PPN/S is better.

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备注/Memo

备注/Memo:
收稿日期:2016-02-31基金项目:国家科技支撑(2012BAE07B00)和江西师范大学青年成长基金(
[2013]12号)资助项目.作者简介:熊云奎(1978-),男,江西南昌人,助理研究员,主要从事锂硫电池正极材料方面的研究.
更新日期/Last Update: 1900-01-01