Ageing-assisted room temperature synthesis of La2Mo2O9 powders
Ageing-assisted room temperature synthesis of La2Mo2O9 powders
复制标题
La2Mo2O9 粉末的老化辅助室温合成
DOI：
10.1016/j.matchemphys.2015.12.069
复制
发表时间：
2016-03
影响因子：
4.6
通讯作者：
Zhang Nai-qiang
中科院分区：
文献类型：
--
作者：
Li Bao-rang;Tan Hong;Zhang De-long;Zhang Nai-qiang
在无模板剂的条件下，采用盐溶剂时效法在室温下成功制备了具有中空结构的La2Mo2O9纳米粒子。采用X射线粉末衍射、场发射扫描电子显微镜和透射电子显微镜对产物的结构和形貌进行了表征。结果发现，老化过程中有一个显着的颗粒形态演变的影响时，混合前体在室温下处理。随着时效时间从1周增加到12周，颗粒形貌逐渐由椭球形向球形演变。所制备的空心结构的La2Mo2O9球的平均直径约为800 nm，壳层厚度约为100 nm。为了阐明可能的形成机制，还研究了单一盐对颗粒形貌演化的影响。结果表明，KCl是形成La2Mo2O9空心球的关键因素，空心结构的形成与时效过程中的表面张力密切相关。
Without any templates, hollow structured La2Mo2O9particles are successfully prepared at room temperature by an ageing-assisted salt solvent process. Powder X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy are used to investigate structure and morphologies of the obtained products. It is found that the ageing process has a significant influence on the particle morphology evolution when the mixed precursors are disposed at room temperature. With the ageing time changed from one week to 12 weeks, the particles morphologies evolve gradually from ellipsoid to sphere. The as-prepared hollow structured La2Mo2O9spheres have an average diameter of about 800 nm and shell thickness of about 100 nm. For elucidating the possible formation mechanism, the influences of the single salt on the particles morphologies evolution are also investigated. The final results indicate KCl is a key factor for formation of La2Mo2O9spheres and the formation of the hollow structure should have close relations with the surface tension in the ageing assisted process.
登录
查看更多内容
通过设计煅烧方式提高结晶Lu2Ti2O7薄膜的合成质量
影响因子：
3
作者：
Li, Bao-rang;Chen, Lei;Li, Zuo-dong;Zhang, Nai-qiang
通讯作者：
Zhang, Nai-qiang
影响因子：
2.5
作者：
Z. Zhuang;X. P. Wang;A. Sun;Yang Li;Q. Fang
通讯作者：
Z. Zhuang;X. P. Wang;A. Sun;Yang Li;Q. Fang
银纳米晶的合成条件和老化过程对银纳米棒形成的影响
影响因子：
6.7
作者：
Zhang, Wanzhong;Qiao, Xueliang;Chen, Qingyuan;Cai, Yuchun;Chen, Haiqiang
通讯作者：
Chen, Haiqiang
影响因子：
2.1
作者：
Y. Xi;Chenguo Hu;Xiao-mei Zhang;Yan Zhang;Zhong Lin Wang
通讯作者：
Y. Xi;Chenguo Hu;Xiao-mei Zhang;Yan Zhang;Zhong Lin Wang
影响因子：
3.2
作者：
D. Marrero-López;J. Canales-Vázquez;J. Ruiz-Morales;A. Rodríguez;J. Irvine;P. Núñez
通讯作者：
D. Marrero-López;J. Canales-Vázquez;J. Ruiz-Morales;A. Rodríguez;J. Irvine;P. Núñez