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Hierarchical Zinc Oxide Materials with Multiple Porosity Prepared by Ultrafast Temperature Gradient Chemical Gas‐Phase Synthesis
Author(s) -
Dilger Stefan,
LizandaraPueyo Carlos,
Krumm Michael,
Polarz Sebastian
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201103557
Subject(s) - porosity , materials science , zinc , gas phase , porous medium , nanoparticle , aerogel , oxide , phase (matter) , ultrashort pulse , nanotechnology , chemical engineering , composite material , organic chemistry , thermodynamics , optics , metallurgy , physics , chemistry , laser , engineering
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.