Publication - Journal Article NMR studies of Cu/zeolite SCR catalysts hydrothermally aged with urea DOI https://doi.org/10.1016/j.cattod.2008.01.019 Journal Article Catalysis Today, vol. 136, iss. 1-2, pp. 34-39, 2008 Authors Yisun Cheng, John Hoard, Christine Lambert, Ja Hun Kwak, Charles H.F. Peden Language English