Synthesis of novel mesoporous Al2O3 microspheres with flower-like structure

• Authors: Huiping Liu , Guanzhong Lu , Yun Guo , Yanqin Wang , Yanglong Guo
• Languages of publication: EN

Abstracts

EN

Using glucose as a structuring additive and aluminium nitrate as the Al precursor, a novel kind of mesoporous Al2O3 microspheres with flower-like structure were synthesized hydrothermally at 180°C for 20 h. When the synthesis temperature was lowered to 140°C, the carambola-like Al2O3 can be synthesized. This approach is convenient and simple, and flower-like Ce-Al2O3 and La-Al2O3 spheres have also been prepared in this way. It may be applied to synthesize other metal oxides when suitable precursor salts are used. From an analysis of the experimental results, a mechanism for the formation of the flower-like Al2O3 spheres has been proposed and discussed. [...]

Keywords

EN

Flower-like structure; Al2O3 Microspheres; Hydrothermal synthesis; Glucose structuring additive

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 4
• Pages: 794-802

Dates

published

1 - 12 - 2009

online

6 - 10 - 2009

Contributors

author

Huiping Liu

• Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, East China University of Science and Technology, 200237, Shanghai, China

author

Guanzhong Lu

• Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, East China University of Science and Technology, 200237, Shanghai, China

author

Yun Guo

• Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, East China University of Science and Technology, 200237, Shanghai, China

author

Yanqin Wang

• Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, East China University of Science and Technology, 200237, Shanghai, China

author

Yanglong Guo

• Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, East China University of Science and Technology, 200237, Shanghai, China

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Identifiers

DOI

10.2478/s11532-009-0071-6