Plasmonic Photocatalytic Reactor Cell for Low-Temperature Reforming
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Solution Overview
Problem
Industrial catalytic processes relying on transition metal nanoparticles are energy-intensive and costly, necessitating the development of more efficient and cost-effective catalytic reactors.
Innovation Solution
The use of optically transparent reactor cells with plasmonic photocatalysts coupled to catalysts via physical, electronic, or optical coupling, which absorb light to transform reactants into reformates, reducing the need for high temperatures and pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional transition metal nanoparticle catalysts are used, then catalytic activity is achieved, but energy consumption increases due to high temperatures and pressures required
Solution Approach 1:
The patent replaces thermal-mechanical catalysis (high temperature and pressure) with photochemical catalysis using plasmonic nanoparticles. The plasmonic materials (gold, silver, copper, aluminum) absorb light energy to generate hot electrons that drive catalytic reactions, substituting the mechanical/thermal activation mechanism with an optical-electronic mechanism, thereby reducing energy consumption while maintaining catalytic activity
Solution Approach 2:
The patent changes the activation parameter from thermal energy (temperature) to optical energy (light wavelength). By tuning the plasmon resonance frequency of nanoparticles to match specific light wavelengths, the system achieves selective activation of catalytic reactions at ambient temperatures and pressures, fundamentally altering the energy input parameters from high-thermal to low-thermal with optical excitation
2Reliability
If precious metal catalysts are used, then catalytic performance is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs non-precious metal plasmonic nanoparticles (aluminum, copper, silver) that are significantly cheaper than traditional precious metal catalysts (platinum, palladium, rhodium). These materials provide comparable or superior catalytic performance for specific reactions while reducing material costs by orders of magnitude, making the catalysts more economically viable for industrial application
Solution Approach 2:
The patent creates composite catalyst systems combining plasmonic nanoparticles with semiconductor supports or molecular catalysts. This composite approach synergistically enhances catalytic performance while using abundant, non-precious materials, replacing expensive single-metal catalysts with cost-effective composite structures that leverage the optical properties of plasmonic materials and the catalytic activity of supported materials
3Productivity
If light absorption is maximized, then catalytic efficiency is improved, but reactor design complexity increases
Solution Approach 1:
The patent applies plasmonic nanoparticles with specific sizes, shapes, and compositions to localized regions within the reactor where light absorption and catalytic activity are most needed. By tailoring the plasmon resonance properties of nanoparticles in different reactor zones to match the local light field distribution, the system maximizes catalytic efficiency while using simple reactor geometries without complex optical components
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
This approach enables cost-effective and environmentally sustainable chemical transformations by maximizing light absorption and catalytic activity, enhancing the efficiency of industrial processes while minimizing energy consumption.
Implementation Method 1
one or more plasmonic photocatalysts on a catalyst support disposed within the enclosure, wherein the plasmonic photocatalyst comprises a catalyst coupled to a plasmonic material... Upon application of a light source, the reactor cell is configured to transform at least one reactant into at least one reformate
Implementation Method 2
the plasmonic photocatalyst comprises a catalyst coupled to a plasmonic material
Data Source
AI summary
The present, disclosure relates generally to reactor cells comprising an enclosure and one or more plasmonic photocatalysts on a catalyst support disposed within the enclosure. In some embodiments of the disclosure, the enclosure is at least partially optically transparent.