Macroporous Gas Adsorbent via Nanoparticle Decoration
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Solution Overview
Problem
Existing gas adsorption technologies are inefficient in utilizing the surface area of adsorbent substrates, leading to the need for excessive adsorbent material in industrial-scale processes, where maximizing adsorption capacity is crucial for processing large volumes of adsorbate.
Innovation Solution
A method involving a macroporous object with a silicone base is treated with a charge-stabilized suspension of nanoparticles, which are repelled onto the pores' walls using a destabilizer or freeze-drying, followed by the introduction of a gas adsorbent additive like an amine monomer or polymer, enhancing the surface area and adsorption capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional adsorbent substrates are used, then the adsorption process can be implemented, but the surface area utilization is inefficient requiring excessive adsorbent material
Solution Approach 1:
The patent applies porous materials by coating the adsorbent substrate with a porous layer containing nanopores. This porous structure dramatically increases the surface area available for adsorption without increasing the bulk volume of the adsorbent material, thereby improving surface area utilization efficiency while reducing the quantity of adsorbent material needed.
Solution Approach 2:
The patent creates a composite structure by combining the base adsorbent substrate with a porous coating layer containing nanoparticles. This composite material integrates the adsorption capabilities of the substrate with the high surface area properties of the porous coating, achieving both efficient adsorption and reduced material requirements.
2Productivity
If the surface area of adsorbent is increased to improve adsorption capacity, then more adsorbate can be processed, but the substrate dimensions and material requirements increase
Solution Approach 1:
The porous coating layer with nanopores provides an extremely high surface area-to-volume ratio. The nanopores create vast internal surface area within a thin coating layer, enabling high adsorption capacity without increasing the bulk volume of the substrate. This allows processing larger volumes of adsorbate while maintaining compact substrate dimensions.
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 process creates a highly optimized gas adsorbent structure with increased surface area, enabling efficient adsorption and desorption of gaseous molecules, reducing the need for excessive adsorbent material and enhancing commercial adsorption operations.
Implementation Method 1
immersing into a charge stabilized suspension of nanoparticles and adapted for electrostatic repulsion
Implementation Method 2
the repelling of the nanoparticles onto the different walls of the pores so as to decorate the macroporous structure with high surface area materials
Implementation Method 3
the introduction of a de-stabilizer to the solution, the de-stabilizer promoting swelling of the macroporous substrate
Implementation Method 4
through the freeze-drying of the macroporous structure while engorged with the suspension so as to vaporize the suspension liquid while leaving the nanoparticles to fall onto walls of the pores
Implementation Method 5
introducing a gas adsorbant additive onto both surface portions of the macroporous substrate and also to the different walls of the pores
Data Source
AI summary
Compositing a gas adsorbant, macroporous object includes the immersion of a macroporous substrate into a charge stabilized suspension of nanoparticles that has been adapted for electrostatic repulsion. In this regard, the macroporous substrate includes a multiplicity of pores and demonstrates a compatibility with an adsorbant additive while lacking a repellant reaction to the charge stabilized solution. The nanoparticles are then positioned onto different walls of the pores resulting in the decoration of the macroporous structure with high surface volume materials. Finally, the macroporous substrate is removed from the suspension and dried. Thereafter, a gas adsorbant additive is introduced onto both surface portions of the macroporous substrate and also to the different walls of the pores of the macroporous substrate.