| MnO2 /聚苯胺复合材料的制备和性能 |
| Preparation and Properties of MnO2 /polyaniline Composite |
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| 摘要: 以δ-MnO2为前驱体，通过酸处理后引入苯胺并聚合，得到了MnO2 /聚苯胺复合材料。经XRD分析表明，在本研究条件下，经酸处理后的δ-MnO2晶型由δ型转变为α型，而在随后的苯胺引入及其聚合步骤中MnO2晶型均不再改变。以200 mA·g-1的电流进行恒电流充放电性能测试，结果显示，MnO2 /聚苯胺复合材料的充放电容量达到160.2 mA·g-1，与 |
| 关键词: MnO2 聚苯胺 复合材料 制备 电化学性能 |
| 基金项目: |
| Abstract: MnO2 /polyaniline composite was prepared by polymerization of aniline in α-MnO2 from the acid-treating precursor of δ-MnO2. XRD results showed that during acid treatment the precursor of δ-MnO2 was transformed into α-MnO2, and this in α-MnO2 polymorph kept unchanged in the subsequent processes, as intercalation and polymerization of aniline. Comparison of charge-discharge performances among the precursor, its acid-treated form and the final composite, showed that at current density of 200 mA·g-1 the discharge capacity of the composite was 160.2 mA·g-1, which is close to that of the acid-treated material (160.9 mA·g-1) but higher than that of the precursor (125.8 mA·g-1). More important, the MnO2 /polyaniline composite showed a much better cyclic performance than the precursor and its acid-treated form. |
| Keywords: MnO2 polyaniline composites preparation electrochemical property |
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| 张启卫,彭小红,黄行康,肖旺钏,王仁章,杨勇.MnO2 /聚苯胺复合材料的制备和性能[J].无机化学学报,2008,24(4):600-604. |
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