| 溶胶-凝胶法制备CuAlO2微晶及其合成活化能研究 |
| |
| 引用本文： | 李抗,黄剑锋,施浙勇,曹丽云,吴建鹏.溶胶-凝胶法制备CuAlO2微晶及其合成活化能研究[J].人工晶体学报,2010,39(3):613-617. |
| |
| 作者姓名： | 李抗 黄剑锋 施浙勇 曹丽云 吴建鹏 |
| |
| 作者单位： | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安,710021 |
| |
| 基金项目： | 教育部博士点基金，教育部新世纪优秀人才支持计划基金，陕西科技大学研究生创新基金 |
| |
| 摘 要： | 采用溶胶-凝胶法制备了铜铁矿结构的CuAlO2微晶,利用示差扫描量热法(DSC)对其合成活化能进行了初步研究;通过XRD、TEM等分析方法对CuAlO2微晶的物相组成和显微结构进行表征.结果表明,以乙酸铜、硝酸铝和乙二醇为反应原料,采用溶胶-凝胶法可以成功制备CuAlO2微晶.前躯体在烧结过程中,首先生成了CuAl2O4和CuO中间相,然后继续反应再形成了CuAlO2微晶.DSC分析表明CuAlO2的合成温度在1181 ℃左右,计算得到其合成活化能为88.25 kJ/mol.利用紫外-可见光谱分析,CuAlO2微晶的光学带隙约为3.85 eV.
|
| 关 键 词： | CuAlO2微晶 溶胶-凝胶法 合成活化能 光学带隙 |
Preparation and Activation Energy of CuAlO_2 Microcrystallites Synthesized by Sol-gel Process |
| |
| LI Kang,HUANG Jian-feng,SHI Zhe-yong,CAO Li-yun,WU Jian-peng.Preparation and Activation Energy of CuAlO_2 Microcrystallites Synthesized by Sol-gel Process[J].Journal of Synthetic Crystals,2010,39(3):613-617. |
| |
| Authors: | LI Kang HUANG Jian-feng SHI Zhe-yong CAO Li-yun WU Jian-peng |
| |
| Institution: | LI Kang,HUANG Jian-feng,SHI Zhe-yong,CAO Li-yun,WU Jian-peng(Key Laboratory of Auxiliary Chemistry , Technology for Chemical Industry,Ministry of Education,Shaanxi University of Science , Technology,Xi\'an 710021,China) |
| |
| Abstract: | Microcrystalline CuAlO2 of delafossite-structured was prepared by Sol-gel method.The synthesized activation energy was studied using DSC method;the phase composition and microstructure of CuAlO2 microcrystallites were investigated by X-ray diffraction(XRD) and transmission electron microscopy (TEM).The results show that using copper acetate,aluminnum nitrate and ethylene glycol as raw materials,CuAlO2 microcrystallites are successfully prepare by sol-gel process.In the sintering process,firstly the intermed... |
| |
| Keywords: | CuAlO2 microcrystallites Sol-gel method synthesized activation energy optical band gap |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《人工晶体学报》浏览原始摘要信息 |
| 点击此处可从《人工晶体学报》下载免费的PDF全文 |
|
