碳包覆纳米SnO<sub>2</sub>中空纤维的制备及电容性能

引用本文: 韩笑梅, 吴艳波, 赵恒彦, 毕军, 魏斌斌. 碳包覆纳米SnO₂中空纤维的制备及电容性能[J]. 物理化学学报, 2015, 31(11): 2220-2228. doi: 10.3866/PKU.WHXB201510131 shu

Citation: HAN Xiao-Mei, WU Yan-Bo, ZHAO Heng-Yan, BI Jun, WEI Bin-Bin. Preparation and Supercapacitor Properties of Carbon-Coated SnO₂ Hollow Fibers[J]. Acta Physico-Chimica Sinica, 2015, 31(11): 2220-2228. doi: 10.3866/PKU.WHXB201510131 shu

碳包覆纳米SnO₂中空纤维的制备及电容性能

韩笑梅 ^1, ,
吴艳波 ^{2,
,} ,
赵恒彦 ^2, ,
毕军 ^2, ,
魏斌斌 ^2,

1.
1 大连交通大学材料科学与工程学院, 辽宁大连 116028;
2.
2 大连交通大学环境与化学工程学院, 辽宁大连 116028

通讯作者: 吴艳波

基金项目:
国家自然科学基金(21076028) (21076028)

国家级大学生创新创业训练计划项目(201410150016)资助 (201410150016)

摘要: 采用同轴静电纺丝法制备了碳包覆纳米SnO₂中空纤维超级电容器电极材料. 利用X射线衍射(XRD)、拉曼光谱、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和比表面积分析仪(BET)对材料进行表征. 结果表明, 纤维呈现中空形貌, 平均直径为1 μm; SnO₂颗粒均匀分布于碳壳结构中, 平均粒径为3-15 nm. 材料的比表面积为565 m²·g^-1. 在三电极体系中, 当电流密度为0.25 A·g^-1时, 电极材料的比容量达397.5 F·g^-1; 在1.0A·g^-1电流密度下, 充放电循环3000次后比容量仍保持为初始值的88%. 在对称型双电极体系中, 电流密度为0.25 A·g^-1时, 电极材料的比容量达162.0 F·g^-1, 在1.0 A·g^-1电流密度下, 充放电循环3000次后比容量仍保持为初始值的84%.

关键词:

English

Preparation and Supercapacitor Properties of Carbon-Coated SnO₂ Hollow Fibers

1.
1 College of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning Province, P. R. China;
2.
2 College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning Province, P. R. China

Corresponding author: 吴艳波

Received Date: 27 April 2015
Fund Project:
国家自然科学基金(21076028)

国家级大学生创新创业训练计划项目(201410150016)资助

Abstract: A new carbon-coated SnO₂ hollow fiber was successfully prepared by coaxial electrospinning, and its supercapacitor properties were well studied. The surface morphology and structure were examined using X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and the Brunauer-Emmett-Teller (BET) method. The results showed hollow fibers of average diameter 1 μm and carbon-coated SnO₂ particles of average size 3-15 nm uniformly distributed on the fiber shell. The surface area was 565 m²·g^-1. In a three-electrode system, the electrode achieved a respectable specific capacitance of 397.5 F·g^-1 at 0.25 A·g^-1, and the capacitance retained ratio was still 88% of the initial value after 3000 cycles at 1.0 A·g^-1. In the case of a symmetrical two-electrode system, the electrode achieved a specific capacitance of 162.0 F·g^-1 at 0.25 A·g^-1 current density, and the capacitance retained ratio was 84% of the initial value after 3000 cycles at 1.0 A·g^-1.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

碳包覆纳米SnO₂中空纤维的制备及电容性能

通讯作者: 吴艳波

English

Preparation and Supercapacitor Properties of Carbon-Coated SnO₂ Hollow Fibers

Corresponding author: 吴艳波

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

碳包覆纳米SnO2中空纤维的制备及电容性能

通讯作者: 吴艳波

English

Preparation and Supercapacitor Properties of Carbon-Coated SnO2 Hollow Fibers

Corresponding author: 吴艳波

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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