| 水热合成MoO3纳米带的生长机理研究 |
| Growth Mechanism of MoO3 Nanobelts under Hydrothermal Condition |
|
| 摘要: 以离子交换法制备的氧化钼溶胶为前驱体，在水热条件下制备了单晶MoO3纳米带，对样品进行了XRD、SEM和TEM分析。通过考察水热反应温度和时间对产物结构和形貌的影响，结合材料热力学和动力学理论，探讨了MoO3纳米带在水热条件下的生长机理。离子交换法制备的溶胶在水热条件下首先转变为热力学亚稳相h-MoO3六角柱，随着温度的升高和时间的延长，h-MoO3按照溶解-重结晶过程转变为稳定相α-MoO3纳米带。 |
| 关键词: 水热法； MoO3 纳米带 生长机理 |
| 基金项目: |
| Abstract: Molybdenum trioxide nanobelts were been synthesized by using stable MoO3 sols as precursor under hydrothermal condition. The structure and morphology of the samples were characterized by XRD, SEM and TEM. The growth mechanism of the MoO3 nanbelts was investigated by studying the influence of hydrothermal temperature and reaction time on the structure and morphology of the products. The MoO3 sols obtained by ion exchange method were firstly tansformed into metastable h-MoO3 microrods, and subsequently stable orthorhombic MoO3 nanobelts were formed with the reaction temperature and time. |
| Keywords: hydrothermal method MoO3 nanobelt growth mechanism |
| |
| 摘要点击次数: 1820 |
| 全文下载次数: 2120 |
| 祁琰媛,陈 文,麦立强,胡 彬,戴 英.水热合成MoO3纳米带的生长机理研究[J].无机化学学报,2007,23(11):1895-1900. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
