Synthesis of dispersed ZrO2 nano-laminae composed of ZrO2 nanocrystals

被引：6

作者：

Wang, Zhihua

Tao, Dongliang ^{[1
]}

Guo, Guangsheng

Jin, Shao

Wei, Fei

Qian, Weizhong

Hong, Sheng

Guo, Jian

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Tsing Hua Univ, Dept Chem Engn, Beijing 100084, Peoples R China

[3] Bei Hang Univ, Sch Elect & Informat Engn, Beijing 100083, Peoples R China

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 25-26期

基金：

中国国家自然科学基金;

关键词：

zirconium oxide; nano-laminae; nanocrystal; polyvinyl pyrrolidone;

D O I：

10.1016/j.matlet.2006.02.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dispersed ZrO2 nano-laminae were synthesized at low temperature using zirconium oxynitrate and polyvinyl pyrrolidone (PVP) as reaction materials. High-resolution transmission electron microscopy (HRTEM) of individual ZrO2 nano-laminae showed that each piece of ZrO2 nanolaminae was assembled by large numbers of ZrO2 nanocrystals. The bulk. dispersed ZrO2 nano-laminae could be observed in situ from scanning electron microscopy (SEM) images. The results of X-ray diffraction (XRD) showed that the crystallographic phase of ZrO2 nano-laminae was cubic ZrO2. Experiments indicated that the morphologies and phase composition of ZrO2 nano-laminae were affected by the calcined temperature. PVP plays an important role in the formation process of dispersed ZrO2 nano-laminae. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3104 / 3108

页数：5

共 22 条

[1] Electron energy barriers between (100)Si and ultrathin stacks of SiO2, Al2O3, and ZrO2 insulators [J].