水热合成大长径比的γ-AlOOH纳米线及表征

被引：3

作者：

杨琪

王影

机构：

[1] 上海工程技术大学材料工程学院

来源：

机械工程材料 | 2014年 / 38卷 / 12期

关键词：

γ-AlOOH; 纳米线; 大长径比; 水热反应;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

以NaOH和NH3·H2O的混合溶液为沉淀剂,在水热条件下制备了大长径比的γ-AlOOH纳米线;并采用X射线衍射仪和透射电子显微镜对制备的产物进行了表征。结果表明:调节混合沉淀剂中NaOH和NH3·H2O的比例,可得到不同形貌的γ-AlOOH纳米结构;大长径比γ-AlOOH纳米线是由水热反应初期形成的尺寸较大的层状γ-AlOOH通过卷曲而形成的;以体积比1∶1的NaOH和NH3·H2O混合溶液为沉淀剂,在保温时间24h条件下,制备的γ-AlOOH纳米线形态最好,其直径为10～30nm,长度为1～2μm,长径比为60～100,并具有明显的晶面择优取向。

引用

页码：82 / 86

页数：5

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