Mesoscale organization of flower-like La2O2CO3 and La2O3Microspheres

被引：35

作者：

Sun, Chunwen ^{[1
]}

Xiao, Guoliang ^{[1
]}

Li, Hong ^{[1
]}

Chen, Liquan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Nanoscale Phys & Devices Lab, Beijing 100080, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2007年 / 90卷 / 08期

关键词：

D O I：

10.1111/j.1551-2916.2007.01756.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Well-dispersed spherical lanthanum oxycarbonate (La2O2CO3) and La2O3 particles with a flower-like morphology were synthesized via a simultaneous polymerization-precipitate reaction, metamorphic reconstruction, and mineralization under a hydrothermal condition as well as subsequent calcination. The La2O2CO3 and La2O3 microspheres obtained consist of about 20 or 40 nm thick nanosheets as petals, respectively. They have an open three-dimensional mesoporous and hollow structure and possess a high surface area, large pore volume, and marked thermal stability. These novel porous structural lanthanum-based materials could be used as catalyst supports for many reactions.

引用

页码：2576 / 2581

页数：6

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