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Synthesis of Goethite by Separation of the Nucleation and Growth Processes of Ferrihydrite Nanoparticles Using Microfluidics
Author(s) -
AbouHassan Ali,
Sandre Olivier,
Neveu Sophie,
Cabuil Valérie
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200805933
Subject(s) - ferrihydrite , goethite , nucleation , microreactor , tetramethylammonium hydroxide , nanoparticle , microfluidics , chemical engineering , materials science , nanotechnology , chemistry , catalysis , organic chemistry , adsorption , engineering
Microfluidic synthesis is used to form nanoparticles by separate nucleation and growth processes using two microreactors (see picture) operating under different temperature and flow conditions. Ferrihydrite nanoparticles precipitated in the first microreactor are aged under continuous flow in a second microtubular reactor, leading to goethite nanoparticles. TMAOH=tetramethylammonium hydroxide.