Formation of FeMoO4 hollow microspheres via a chemical conversion-induced Ostwald ripening process

被引：43

作者：

Cui, Jian-Xun ^{[1
]}

Wang, Wen-Shou ^{[1
,2
,3
]}

Zhen, Liang ^{[1
,3
]}

Shao, Wen-Zhu ^{[1
]}

Chen, Zhong-Lin ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, State Key Lab Urban Water Resources & Environm, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China

[3] Harbin Inst Technol, MOE Key Lab Microsyst & Microstruct Mfg, Harbin 150001, Peoples R China

来源：

CRYSTENGCOMM | 2012年 / 14卷 / 20期

基金：

中国博士后科学基金;

关键词：

AQUEOUS-SOLUTION SYNTHESIS; LARGE-SCALE SYNTHESIS; ROOM-TEMPERATURE; TIO2; NANOSPHERES; CORE-SHELL; SPHERES; NANOSTRUCTURES; MOLYBDATE; TEMPLATE; NANOCRYSTALS;

D O I：

10.1039/c2ce25825k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

FeMoO4 hollow microspheres were prepared via a template-free hydrothermal method using FeCl2 and Na2MoO4 as the starting reaction reagents and distilled water as the solvent. The crystal structure, morphology and UV-vis reflection property of the as-synthesized products are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and UV-vis diffuse reflectance spectroscopy. The hollow microspheres have diameters ranging from 3 to 5 mu m, hollow interiors of similar to 2.5 mu m and the shell is constructed by numerous nanoparticles with sizes of 100-200 nm. The effects of reaction temperature, concentration of reaction reagents and reaction times have been studied. The formation mechanism of the FeMoO4 hollow microspheres is related to the chemical conversion-induced Ostwald ripening process.

引用

页码：7025 / 7030

页数：6

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