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High Surface Area ZnO Nanoparticles via a Novel Continuous Precipitation Route
Author(s) -
Kaluza Stefan,
Schröter Marie Katrin,
Naumann d'Alcourt Raoul,
Reinecke Thomas,
Muhler Martin
Publication year - 2008
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200800457
Subject(s) - materials science , precipitation , nanoparticle , chemical engineering , aqueous solution , crystallite , quenching (fluorescence) , zinc , specific surface area , zinc nitrate , nanotechnology , metallurgy , meteorology , organic chemistry , chemistry , physics , quantum mechanics , engineering , fluorescence , catalysis
High surface area ZnO nanoparticles are synthesized by applying a novel continuous precipitation method using a micromixer coupled directly to a bench‐top spray dryer. The polycrystalline material is obtained by fast turbulent precipitation from aqueous zinc nitrate solutions with either sodium or potassium carbonate followed by immediate quenching of the aging due to the rapid water removal. Specific surface areas up to 98 m 2 g −1 are obtained, depending on the precipitant and the sequence of unit operations applied after precipitation.