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Event: 'Large-Scale Engineered Synthesis of BaTiO3 Nanoparticles'

Webinar
Date: Wednesday, October 06, 2010 At 02:00:00 PM
Duration: 1 Day
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In this webinar, Teyeb Ould Ely, PhD, will present recent nanomanufacturing protocol of BaTiO3 nanopowders utilizing a bioinspired process that first was developed on a much smaller scale (0.1-1g). The most advantageous points of this protocol are that it takes place at nearly room temperature, overcomes many limitations encountered in other scale-up processes such as the need for heat, radiation or pressure. Furthermore, it bypasses the use of surfactants and templates, and does not necessitate pH adjustment. The controlled vapor diffusion hydrolysis of Ba/Ti bimetallic alkoxide provides the necessary conditions for facile crystallization and growth of small, well-defined BaTiO3 nanoparticles at mild temperatures yielding up to 250g 5g batches in a green process. Extension of this method to kilogram scale production of BaTiO3 nanocrystals in semi-continuous and continuous processes is feasible. This webinar will also highlight some applications of BaTiO3, especially for energy and sensing. Finally, during this presentation, Ely will address how manufacturing systems inside living cells (of sponges) can be replicated and translated into a process that is wholly controlled by chemical physics of vapor diffusion and catalytic hydrolysis. The advantages and limitations will be discussed as well.


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