This technology uses functionalized cyclopropenimine (CPI) superbase molecules to efficiently and rapidly capture and upcycle atmospheric carbon dioxide gas into other organic compounds.

Unmet Need: Simple, robust, and easily regenerable compounds for carbon capture

Current molecules used industrially in both direct air capture and point-source capture of carbon dioxide (CO₂) are generally limited to aqueous amines. However, conventional amines for CO₂ capture have low capture capacities, high degradation rates, and require high temperatures and large amounts of energy, so it can take years to convert concentrated CO₂ into solid materials. Although amines can be readily produced and used in existing infrastructure, their use is limited in certain carbon capture applications.

The Technology: Functionalized and stable cyclic superbase imines for rapid CO₂ capture

This CO₂ capture system utilizes cyclopropenimines (CPIs) to efficiently and rapidly capture CO₂ in both aqueous and organic solvents. CPIs can be easily prepared from commercially available materials within three steps. Their structural properties allow for CO₂ capture and conversion into other organic compounds within minutes at room temperature and pressure. Their properties can be modulated by adding various functional groups to alter CO₂ solubility and affinity to allow for upcycling, controlled uptake and release, and mineralization of CO₂.

Applications:

Carbon capture and utilization
Production of industrial chemicals from CO₂
Controlled uptake and release of CO₂
CO2 mineralization
Management of CO₂ waste

Advantages:

Rapid and robust capture of carbon dioxide from a wide variety of sources
Simple and fast to produce
Ease of regeneration and modulation
Works at standard temperature and pressure
Can function in both aqueous and organic capture systems
Direct carbon upcycling to carbonate materials can be achieved

Lead Inventor:

Luis M. Campos, Ph.D.

Related Publications:

Tech Ventures Reference:

IR CU22050
Licensing Contact: Cynthia Lang

Cyclopropenimines for enhanced carbon capture and upcycling