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Young Jin Kim, Kyung Myung Min, Jun Kyu Lee, Prof. Suk Bong Hong, Prof. Byong K. Cho and Prof. In-Sik Nam Effect of CO2 on the DeNOx Activity of a Small Pore Zeolite Copper Catalyst for NH3/SCR ChemCatChem 6

Article first published online: 12 MAR 2014 | DOI: 10.1002/cctc.201400093

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Fort NOX: The activity of CuSSZ13 for the selective catalytic reduction of nitrogen oxides by NH3 at low temperatures below 300 °C gradually decreases in the presence of CO2. The formation of nitrate species is substantially inhibited by unidentate carbonate species that are formed on the catalyst surface. This is believed to be the primary cause for the CO2-induced deactivation of CuSSZ13. XNO=conversion of NO.

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