Catalyst Coating in Micro Channels Techniques and Analytical Characterization

Catalyst Coating in Micro Channels Techniques and Analytical Characterization 

With the increasing quest for chemical micro processing research on catalyzed gas-phase reactions, both the catalysts themselves and their carriers have become the focus of scientific investigations - on their preparation, morphology, porosity, composition, etc. 

Catalysts and their carriers are provided in micro channels by various means and in various geometric forms. In a simple variant, the catalyst itself constitutes the micro-reactor construction material without need for any carrier [2-A], In this case, however, the catalyst surface area equals that of the reactor wall and hence is comparatively low. Accordingly, applications are typically restricted to either fast reactions or processing at low flow rates for slow reactions (to enhance the residence time). 

Among the non-traditional routes for formation of catalyst and catalyst/carrier coatings, the most prominent way is the washcoat route followed by wet impregna- 

Step 7 Anisotropic etching in 30% KOH solution for 10 minutes to foim 13-20pm deep chamber on backside 

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