Nuclear energy provides about 20 percent of the U.S. electricity supply, and over half of its carbon-free generating capacity. Operations of commercial nuclear reactors produce small quantities of spent fuel, which in some countries is reprocessed to extract materials that can be recycled as fuel in other reactors. Key to the improvement of the economics of this fuel cycle is the capture of gaseous radioactive products of fission such as 85krypton. Therefore, developing efficient technology to capture and secure 85krypton from the mix of effluent gasses would represent a…