| 高分子保护沉淀法制备超细纳米氧化镁 |
| Preparation of Extra Fine Nano-sized MgO by Precipitation and Polymer Protection Method |
|
| 摘要: |
| 关键词: 纳米氧化镁 六次亚甲基四胺 均匀沉淀法 高分子保护 |
| 基金项目: |
| Abstract: The precursor for nano-sized magnesia was prepared by using Mg(NO3)2·6H2O as raw material, the hydrolysis product of hexamethylene tetramine as precipitating reagent and water as reaction media, and with the polymer (PEG) and DMF as protection reagents for particles. Nano-sized magnesia was prepared by calcining the precursor at 873 K after being dehydrated by freeze centrifugation and vacuum drying at a constant temperature. The formation process and structure of MgO nanocrystallites were investigated by means of TG-DTA, FTIR, TEM, XRD and BET. The results showed that the crystal belonged to cubic system and the average size was 3.1 nm and the specific surface area was 229 m2·g-1. |
| Keywords: nano-sized magnesia hexamethylene tetramine precipitation method polymer protection |
| |
| 摘要点击次数: 1281 |
| 全文下载次数: 2082 |
| 王海霞,胡炳元,王麟生,杨广达,李强.高分子保护沉淀法制备超细纳米氧化镁[J].无机化学学报,2006,22(2):363-366. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
