Hierarchical Zinc Oxide Materials with Multiple Porosity Prepared by Ultrafast Temperature Gradient Chemical Gas-Phase Synthesis

The preparation of materials characterized by three types of porosity could be prepared by a continuous chemical gas‐phase method. The multistep formation mechanism involves a critical temperature gradient and occurs within seconds. The resulting hollow aerogel materials show superior properties as...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-01, Vol.24 (4), p.543-548
Main Authors: Dilger, Stefan, Lizandara-Pueyo, Carlos, Krumm, Michael, Polarz, Sebastian
Format: Article
Language:English
Subjects:
aerogels
Chemistry Techniques, Synthetic - methods
gas-sensing
Gases - chemistry
Kinetics
metal oxides
Porosity
porous materials
semiconductors
Temperature
Zinc Oxide - chemical synthesis
Zinc Oxide - chemistry
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Summary:The preparation of materials characterized by three types of porosity could be prepared by a continuous chemical gas‐phase method. The multistep formation mechanism involves a critical temperature gradient and occurs within seconds. The resulting hollow aerogel materials show superior properties as gas sensors in comparison to materials constructed from compact nanoparticles.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201103557