Facile hydrothermal synthesis of tubular kapok fiber/MnO2 composites and application in supercapacitors

被引：27

作者：

Xu, Weibing ^{[1
,2
]}

Mu, Bin ^{[1
]}

Zhang, Wenbo ^{[1
]}

Wang, Aiqin ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 79期

基金：

中国国家自然科学基金;

关键词：

HIGH-PERFORMANCE SUPERCAPACITOR; ELECTROCHEMICAL ENERGY-STORAGE; MANGANESE-DIOXIDE NANOSHEETS; PENTANDRA L. GAERTN; PSEUDOCAPACITANCE PROPERTIES; POLYANILINE NANOFIBERS; ASSISTED SYNTHESIS; CARBON MATERIALS; HOLLOW SPHERES; ANODE MATERIAL;

D O I：

10.1039/c5ra13602d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Kapok fiber/MnO2 (TKF/MnO2) composites with a tubular structure are successfully fabricated via a facile hydrothermal process. Potassium permanganate and kapok fiber served as the manganese source and the template, respectively. The effects of operating parameters including material proportion, reaction temperature, reaction time and the growth mechanism of MnO2 are studied in detail. A maximum specific capacitance of 117 F g(-1) has been achieved at 0.25 A g(-1) in 1 M Na2SO4 and 95% specific capacitance is maintained after 1000 cycles, which demonstrates the potential application of tubular TKF/MnO2 composites in supercapacitors. The superior electrochemical performances of the obtained composites are attributed to their hollow structure, thin wall thickness, and orderly pore passages, which can facilitate ion diffusion and improve the utilization of the electroactive sites of MnO2.

引用

页码：64065 / 64075

页数：11

共 73 条

[1]

[Anonymous], 2013, ANGEW CHEM INT EDIT, DOI DOI 10.1002/ANGE.201301622

[2] One-Step Hydrothermal Synthesis of Nitrogen-Doped Nanocarbons: Albumine Directing the Carbonization of Glucose [J].

Baccile, Niki ;

Antonietti, Markus ;

Titirici, Maria-Magdalena .

CHEMSUSCHEM, 2010, 3 (02) :246-253

[3]

CARRASCO F, 1992, WOOD SCI TECHNOL, V26, P189, DOI 10.1007/BF00224292

[4] Highly conductive NiCo2S4 urchin-like nanostructures for high-rate pseudocapacitors [J].

Chen, Haichao ;

Jiang, Jianjun ;

Zhang, Li ;

Wan, Houzhao ;

Qi, Tong ;

Xia, Dandan .

NANOSCALE, 2013, 5 (19) :8879-8883

[5] Preparation of activated carbon from cotton stalk and its application in supercapacitor [J].

Chen, Mingde ;

Kang, Xueya ;

Wumaier, Tuerdi ;

Dou, Junqing ;

Gao, Bo ;

Han, Ying ;

Xu, Guoqing ;

Liu, Zhiqiang ;

Zhang, Lu .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2013, 17 (04) :1005-1012

[6] Graphene Oxide-MnO2 Nanocomposites for Supercapacitors [J].

Chen, Sheng ;

Zhu, Junwu ;

Wu, Xiaodong ;

Han, Qiaofeng ;

Wang, Xin .

ACS NANO, 2010, 4 (05) :2822-2830

[7] One-Step Electrodeposited Nickel Cobalt Sulfide Nanosheet Arrays for High-Performance Asymmetric Supercapacitors [J].

Chen, Wei ;

Xia, Chuan ;

Alshareef, Husam N. .

ACS NANO, 2014, 8 (09) :9531-9541

[8] Theoretical guidelines to designing high performance energy storage device based on hybridization of lithium-ion battery and supercapacitor [J].

Choi, Hong Soo ;

Park, Chong Rae .

JOURNAL OF POWER SOURCES, 2014, 259 :1-14

[9] Effect of crystallographic structure of MnO2 on its electrochemical capacitance properties [J].

Devaraj, S. ;

Munichandraiah, N. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (11) :4406-4417

[10] The short-channel function of hollow carbon nanoparticles as support in the dehydrogenation of cyclohexane [J].

Du, Jianping ;

Zhao, Ruihua ;

Jiao, Gaorong .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (14) :5789-5795

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