Additives For Improved Electrochemical Co2 Capture

Brief Description

Suggested uses

·Carbon capture from post-combustion glue gas

·Atmospheric carbon capture

Features/Benefits

·Cost-effective

·Scalable

·Three times more efficient than other reported redox-carrier-bases systems

·Nearly twice the efficiency of state-of-the-art alkanolamine-based systems

Technology Description

Among the multiple approaches to eCCC, the utilization of redox-active carrier species is among the most popular. Several classes of redox-active carriers have been investigated for eCCC applications including: bipyridines, thiols, and quinones. While quinones have shown to be potent eCCC carriers in the absence of O2, all reported systems are incapable of operating under aerobic conditions. Since O2 is present in flue gas and atmospheric CO2 sources, practical eCCC methods must overcome this limitation. The Yang lab developed an eCCC approach that uses alcohol additives to stabilize a quinone through intermolecular hydrogen-bonding interactions, resulting in practical, cost-effective, and scalable electrochemical carbon dioxide capture and concentration.

State Of Development

Experimentally confirmed in lab

Patent Status

Additional Patent Pending