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Platinum supported mesoporous silica spheres by optmized microfluidic sol-gel synthesize scheme

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Chokkalingam,  V.
Group Geometry of Fluid Interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Herminghaus,  S.
Group Granular matter and irreversibility, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Seemann,  R.
Group Geometry of Fluid Interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Chokkalingam, V., Weidenhof, B., Maier, F., Herminghaus, S., & Seemann, R. (2010). Platinum supported mesoporous silica spheres by optmized microfluidic sol-gel synthesize scheme.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-122B-E
Abstract
Droplet based microfluidics is used to perform sol-gel reactions. The chemicals are dispensed, mixed, and pre-processed inside a microfluidic device allowing for long operation times without any clogging. Using this approach and optimizing all reaction and processing parameters we generate mesoporous silica particles with a very high surface area of 820 m2 g−1 and a narrow pore radius distribution of around 2.4 nm. To take full advantage of the possibilities offered by this microfluidic synthesis route, we produced platinum supported silica microspheres (as high as 7 mol. %) for heterogeneous catalysis.