| 孔状Co3O4纳米片和纳米棒的选择性合成和表征(英文) |
| Selective Synthesis and Characterization of Porous Co3O4 Nanoplates and Nanorods |
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| 摘要: 利用两步实验选择性合成孔状Co3O4纳米片和纳米棒：首先，以Co(NO3)2·6H2O，NaOH和不同量的NH4F为原料在120 ℃水热6 h的条件下合成了Co(OH)2-Co3O4纳米片(S1)和Co(OH)F-Co3O4纳米棒(S2)；然后将所得纳米片和纳米棒在400 ℃时加热2 h即得到多孔的Co3O4纳米片和纳米棒。所得产物用X射线衍射(XRD)、场发射扫描电子显微镜(FE-SEM)和透射电子显微镜(TEM)进行了表征。此外电化学测试表明Co3O4纳米棒的电容量比Co3O4纳米片的更大。 |
| 关键词: 半导体 纳米材料 电化学性质 |
| 基金项目: |
| Abstract: A two-step method has been proposed for the selective synthesis of porous Co3O4 nanoplates and nanorods: firstly, Co(OH)2-Co3O4 nanoplates (S1) and Co(OH)F-Co3O4 nanorods (S2) were synthesized via the hydrothermal reaction of Co(NO3)2·6H2O, NaOH and different amounts of NH4F at 120 ℃ for 6 h; secondly, porous Co3O4 nanoplates and nanorods were obtained by thermal decomposition of the S1 and S2 precursors in air at 400 ℃ for 2 h, respectively. The obtained products were characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. Besides, the electrochemical tests showed that the as-prepared Co3O4 nanorods have larger specific capacitances than the as-prepared Co3O4 nanoplates. |
| Keywords: semiconductors nanomaterials electrical properties |
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| 摘要点击次数: 1977 |
| 全文下载次数: 1985 |
| 黄庆利,陈 虎,张永才.孔状Co3O4纳米片和纳米棒的选择性合成和表征(英文)[J].无机化学学报,2010,26(8):1394-1398. |
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