New catalyst helps eliminate NOx from diesel exhaust

A catalyst developed by Argonne researchers could help diesel truck manufacturers eliminate harmful nitrogen-oxide emissions from diesel exhausts. The catalyst, currently being tested in the form of extrudates, is shown here by researcher Chris Marshall. Having performed well in lab tests, the next step is to subject the catalyst to testing using real diesel exhaust. These tests will take place soon at Argonne's Diesel Engine Test Facility. The catalyst will be placed in the reactor at left which is then connected to the diesel engine pictured in the background with post-doctoral researcher Sundar Krishnan, left, and Argonne researcher Steve Ciatti. Photo by George Joch.