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Synthesis of Nanostructured Materials for Catalytic Applications.

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Presentation on theme: "Synthesis of Nanostructured Materials for Catalytic Applications."— Presentation transcript:

1 Synthesis of Nanostructured Materials for Catalytic Applications

2 Subject Areas Active Sites and Frameworks Topologies –Particle Shape –2D Particle Arrays –2D Pocket Arrays –Uniform Organized Channels Methodologies –Wet –Dry –Self-Assembly

3 Subject Areas cont’d Goals –Models of natural aerosols –Ultra-uniform active sites –Novel chemistry –Molecular Flow Control –Coke Resistant Solid Acids –Immobilized Enzymes & Homogeneous Catalysts –Amenable to High Throughput Discovery

4 Goals for Catalysts  Ultra-uniform  Highly active  Control reagent contact time  Separate reactants and products  Resist deactivation by sintering  Resist deactivation by fouling

5 Framework Topologies b a 3D Porous

6 Framework Topologies 2D Porous Reactors 2D Planar Platelets or Sheets

7 2D Porous Topology Ultra-Uniform Volume Pores –Ultra-Uniform Active Phases –Uniform Contact Time One Active Particle in Each Pore –No Secondary Reactions Sequenced Active Sites in Each Pore –Sequenced Reactions Sequestered Active Sites –No Sintering Tailored Pore Walls –Molecular Flow Control

8 2D Planar Topology No Pores  No Pore Plugging –Solid Acids? Immobilize Large Active Structures –Enzymes –Homogeneous Catalysts Macroscopic Area Samples for Surface Science

9 Methods of Synthesis Wet - Porous –Colloids, Sol-gel, Templates, Liquid-Crystal, Bottoms- up Supramolecular, Genetic Engineering Dry - Planar –PVD, MBE, CVD, ALE, ALD, PLD, Plasma –Patterning Self-Assembly –Templates, Anodization, Dendrimers, Bio-assembly


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