Morphology-controlled synthesis and growth mechanisms of branched α-MnO2 nanorods via facile microwave-assisted hydrothermal method

被引:11
|
作者
Zhang, Xinhao [1 ,2 ]
Li, Benxian [3 ]
Li, Xiaoyuan [4 ]
Chu, Qingxin [1 ]
Yang, Min [1 ]
Wang, Xiaofeng [1 ]
Chen, Huawei [1 ]
Peng, Liping [4 ]
Liu, Xiaoyang [1 ,3 ]
机构
[1] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
[2] Chifeng Univ, Dept Chem, Chifeng 024000, Peoples R China
[3] Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China
[4] Jilin Univ, Norman Bethune Hosp 1, Changchun 130021, Peoples R China
关键词
OCTAHEDRAL MOLECULAR-SIEVES; ROOM-TEMPERATURE SYNTHESIS; MANGANESE-DIOXIDE; PSEUDOCAPACITANCE PROPERTIES; ELECTROCHEMICAL PROPERTIES; MNO2; NANOSTRUCTURES; ELECTRODE MATERIALS; OXIDES; SUPERCAPACITOR; OXIDATION;
D O I
10.1007/s10854-013-1663-7
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Multiple branched manganese oxide nanorods were obtained through the rapid one-step microwave-assisted hydrothermal synthesis by the reduction of potassium permanganate in hydrochloric acid solution without using any catalysts or surfactants. The formation mechanism of the branched alpha-MnO2 was studied by systematically varying the reaction time, which were "oriented attachment" and rolling-cum-phase process. The electrochemical performance of the samples was examined by cyclic voltammetry. The specific surface area of the branched alpha-MnO2 and the electrolyte in the solution were found to remarkably affect the specific capacitance. This microwave-assisted technique enables the quick and simple preparation of branched MnO2 nanorods under mild conditions and maybe readily extended to the preparation of many other branched nanoparticles.
引用
收藏
页码:906 / 913
页数:8
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