Porous Ceramic Shell for Catalyst Adhesion
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Solution Overview
Problem
Ceramic carrier moldings have inadequate adhesion of active ingredients, such as multi-element oxide accelerators, which affects their effectiveness and selectivity in chemical reactions.
Innovation Solution
A ceramic molded body with a porous surface is created by applying a porous ceramic shell to a ceramic base body, where the shell is sintered together with the base body, using materials like silicate or metal oxide ceramics, enhancing the adhesion and surface area for active ingredients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a dense ceramic surface is used, then the mechanical strength is maintained, but the adhesion of active ingredients is insufficient
Solution Approach 1:
The patent applies a porous ceramic shell layer on the ceramic base body. The porous structure provides capillary effects and increased surface area that significantly improve the adhesion of active ingredients while maintaining mechanical strength through the underlying dense base body. The porous shell acts as an intermediate layer that enhances chemical bonding and physical anchoring of catalysts or accelerators.
Solution Approach 2:
The patent creates a composite structure consisting of a dense ceramic base body and a porous ceramic shell layer. This composite design combines the advantages of both structures: the dense base body provides mechanical strength and structural integrity, while the porous shell provides high adhesion for active ingredients through its capillary network and increased surface area.
2Reliability
If a porous surface is created to improve adhesion, then the adhesion of active ingredients increases, but the surface area and complexity of the structure increase
Solution Approach 1:
The porous ceramic shell creates a three-dimensional network of pores and channels that dramatically increase the effective surface area available for active ingredient adhesion. The capillary effects within the pores enhance liquid retention and distribution, allowing for better contact between active ingredients and the carrier surface without requiring a larger external footprint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The porous surface significantly improves the adhesion and activity of active ingredients, increasing their effectiveness and selectivity in influencing chemical reactions, particularly for multi-element oxide accelerators, by creating a large surface area and capillary effect.
Implementation Method 1
the porous ceramic shell being sintered together with the ceramic base body
Implementation Method 2
creating a large surface area and capillary effect
Data Source
Figure 1
AI summary
A ceramic molded body having a porous surface and a method for the production thereof.