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New insights on controlling diesel engine exhaust

​​​Nitrogen monoxide (NO) is hazardous and catalytic techniques are used to reduce NO to molecular nitrogen and water using ammonia as a reducing agent. This is a challenging problem given that diesel exhaust contain only one NO molecule per 300 oxygen molecules.
How can we make ammonia react only with NO and not with oxygen forming even more NO? 

Lin Chen, Department of Physics at Chalmers, has targeted this important environmental problem together with industrial and academic partners using first principles calculations. Their work, which just have appeared in ACS Catalysis, presents for the first time a complete catalytic cycle for the reaction when it occurs over zeolites functionalized with copper.     

Read the scientific paper in ACS Catalysis.​


Published: Wed 02 Sep 2020.