Abstract
A high-rate, continuous synthesis of functional nanomaterials using a home engineered reactor is reported. The reactor is able to produce low-cost, kilogram-scale BaTiO3 nanopowders with a nanocrystalline particle size less than 30 nm at mild temperatures (<100 °C) and ambient pressure. Nebulization and collision of warm microdroplets (60-80 °C) of Ba(OH) 2 and Ti(O-nBu)4 very quickly result in total hydrolysis and subsequent conversion to BaTiO3, yielding 1.3 kg/day of high purity, highly crystalline nanoparticles (25-30 nm). This synthesis procedure also enables high-rate production of TiO2 anatase (2.9 kg/day). It therefore provides a general platform for processing and scaling up of functional inorganic nanomaterials under very mild conditions. Low-cost, kilogram-scale BaTiO3 nanopowders are produced via a high-rate synthesis, giving a particle size <30 nm under mild conditions (<100 °C). Nebulization and collision of warm microdroplets of Ba(OH)2 and Ti(O-nBu)4 result in total hydrolysis and conversion to BaTiO3, yielding 1.3 kg/day of high-purity, highly crystalline nanoparticles, as well as 2.9 kg/day TiO2 anatase. It therefore provides a general platform for processing and scaling up functional inorganic nanomaterials under very mild conditions.
Original language | English |
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Pages (from-to) | 1275-1282 |
Number of pages | 8 |
Journal | Advanced Functional Materials |
Volume | 24 |
Issue number | 9 |
DOIs | |
Publication status | Published - Mar 5 2014 |
Keywords
- continuous flow
- inorganic nanomaterials
- nanocrystals
- nanomanufacturing
- perovskites
- reactor engineering
- titanium oxide
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics