Synthesis and capacitive properties of carbonaceous sphere@MnO2 rattle-type hollow structures

被引：19

作者：

Zhang, Jintao ^{[1
]}

Ma, Jizhen ^{[1
]}

Jiang, Jianwen ^{[1
]}

Zhao, X. S. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

来源：

JOURNAL OF MATERIALS RESEARCH | 2010年 / 25卷 / 08期

关键词：

LOW-TEMPERATURE SYNTHESIS; MANGANESE OXIDE; PSEUDOCAPACITANCE PROPERTIES; HYDROTHERMAL CARBONIZATION; NANOSTRUCTURED MATERIALS; ELECTRODE MATERIALS; MNO2; COMPOSITES; NANOTUBES; SPHERES;

D O I：

10.1557/JMR.2010.0189

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbonaceous sphere@MnO2 rattle-type hollow spheres were synthesized under mild experimental conditions. The as-prepared hollow structures were characterized using scanning electron microscope, transmission electron microscope, x-ray diffraction, x-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and nitrogen adsorption techniques. The characterization data showed the formation of rattle-type hollow structures with a mesoporous MnO2 shell and a carbonaceous sphere core. The composition and shell thickness of the hollow spheres can be controlled experimentally. The capacitive performance of the hollow structures was evaluated by using both cycle voltammetry and charge discharge methods. The results demonstrated a specific capacitance as high as 184 F/g at a current density of 125 mA/g. The good electrocapacitive performance resulted from the mesoporous structure and high surface area of the MnO2-based hollow spheres.

引用

页码：1476 / 1484

页数：9

共 37 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].

Aricò, AS ;

Bruce, P ;

Scrosati, B ;

Tarascon, JM ;

Van Schalkwijk, W .

NATURE MATERIALS, 2005, 4 (05) :366-377

[2] Amorphous carbon nanofibres inducing high specific capacitance of deposited hydrous ruthenium oxide [J].

Barranco, V. ;

Pico, F. ;

Ibanez, J. ;

Lillo-Rodenas, M. A. ;

Linares-Solano, A. ;

Kimura, M. ;

Oya, A. ;

Rojas, R. M. ;

Amarilla, J. M. ;

Rojo, J. M. .

ELECTROCHIMICA ACTA, 2009, 54 (28) :7452-7457

[3] Crystalline MnO2 as possible alternatives to amorphous compounds in electrochemical supercapacitors [J].

Brousse, Thierry ;

Toupin, Mathieu ;

Dugas, Romain ;

Athouel, Laurence ;

Crosnier, Olivier ;

Belanger, Daniel .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (12) :A2171-A2180

[4] Combination of Lightweight Elements and Nanostructured Materials for Batteries [J].

Chen, Jun ;

Cheng, Fangyi .

ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (06) :713-723

[5] 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

[6] Incorporation of homogeneous, nanoscale MnO2 within ultraporous carbon structures via self-limiting electroless deposition:: Implications for electrochemical capacitors [J].

Fischer, Anne E. ;

Pettigrew, Katherine A. ;

Rolison, Debra R. ;

Stroud, Rhonda M. ;

Long, Jeffrey W. .

NANO LETTERS, 2007, 7 (02) :281-286

[7] General and Facile Method To Prepare Uniform Y2O3:Eu Hollow Microspheres [J].

Jia, Guang ;

Yang, Mei ;

Song, Yanhua ;

You, Hongpeng ;

Zhang, Hongjie .

CRYSTAL GROWTH & DESIGN, 2009, 9 (01) :301-307

[8] Supercapacitor behavior with KCl electrolyte [J].

Lee, HY ;

Goodenough, JB .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 144 (01) :220-223

[9] Low-temperature synthesis of α-MnO2 hollow urchins and their application in rechargeable Li+ batteries [J].

Li, Benxia ;

Rong, Guoxin ;

Xie, Yi ;

Huang, Lunfeng ;

Feng, Chuanqi .

INORGANIC CHEMISTRY, 2006, 45 (16) :6404-6410

[10] Hollow Micro-/Nanostructures: Synthesis and Applications [J].

Lou, Xiong Wen ;

Archer, Lynden A. ;

Yang, Zichao .

ADVANCED MATERIALS, 2008, 20 (21) :3987-4019

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