Microwave Synthesis and Electrochemical Property of One Dimensional Nanostructured MnO2

被引：0

作者：

Zhang, Wei-Xin ^{[1
]}

Wang, Qiang ^{[1
]}

Ren, Xiang-Bin ^{[1
]}

Yang, Ze-Heng ^{[1
]}

Wang, Hua ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Chem Engn, Key Lab Controllable Chem React & Mat Chem Engn A, Hefei 230009, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2008年 / 29卷 / 10期

关键词：

Nanostructure; Microwave-heating; MnO2; Electrochemical property;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Based on the hydrothermally-synthesized nanostructured gamma-MnOOH precursor and with K2S2O8 as an oxidant, nanostructured alpha/beta-MnO2 samples were prepared by a singel-mode microwave-heating method. The samples were characterized by X-ray diffraction and Transmission Electron Microscopy. The results show that alpha-MnO2 nanofibers were prepared when the gamma-MnOOH nanofibers synthesized at 100 degrees C were used as the precursors, while beta-MnO2 nanorods were obtained with the gamma-MnOOH nanorods synthesized at 150 degrees C as the precursors. The electrochemical performance of alpha/beta-MnO2 was also investigated by galvanostatic discharge test. When the as-prepared alpha-MnO2 nanofiber and beta-MnO2 nanorod samples are used for Li/MnO2 battery, the discharge capacities are 270.23 and 186.66 mA . h/g, respectively.

引用

页码：2025 / 2028

页数：4

共 27 条

[11] 2-5
[12] A microwave assisted heating method for the preparation of copper sulfide nanorods
Liao, XH
Chen, NY
Xu, S
Yang, SB
Zhu, JJ
[J]. JOURNAL OF CRYSTAL GROWTH, 2003, 252 (04) : 593 - 598
[13] Synthesis, characterization and magnetic properties of β-MnO2 nanorods
Liu, XM
Fu, SY
Huang, CJ
[J]. POWDER TECHNOLOGY, 2005, 154 (2-3) : 120 - 124
[14] Nanotechnology for the progress of lithium batteries R&D
Panero, S
Scrosati, B
Wachtler, M
Croce, F
[J]. JOURNAL OF POWER SOURCES, 2004, 129 (01) : 90 - 95
[15] Qin Y, 2008, NATURE, V451, P809, DOI [10.1038/nature06601, 10.1038/nature066O1]
[16] Nanostructured MnO2 for Li batteries
Sugantha, M
Ramakrishnan, PA
Hermann, AM
Warmsingh, CP
Ginley, DS
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2003, 28 (06) : 597 - 600
[17] Preparation and characterization of MnOOH and β-MnO2 whiskers
Sun, XD
Ma, CL
Wang, YD
Li, HD
[J]. INORGANIC CHEMISTRY COMMUNICATIONS, 2002, 5 (10) : 747 - 750
[18] Manganese oxides for lithium batteries
Thackeray, MM
[J]. PROGRESS IN SOLID STATE CHEMISTRY, 1997, 25 (1-2) : 1 - 71
[19] Synthesis and electrochemical properties of α-MnO2 microspheres
Wang, Hong-En
Qian, Dong
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2008, 109 (2-3) : 399 - 403
[20] Synthesis and formation mechanism of manganese dioxide nanowires/nanorods
Wang, X
Li, YD
[J]. CHEMISTRY-A EUROPEAN JOURNAL, 2003, 9 (01) : 300 - 306

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