4.6 Article

Selective Catalytic Reduction of NOx with NH3 over a Cu-SSZ-13 Catalyst Prepared by a Solid-State Ion-Exchange Method

Journal

CHEMCATCHEM
Volume 6, Issue 6, Pages 1579-1583

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201402010

Keywords

diesel engine exhaust; heterogeneous catalysis; NOx reduction; solid-state reactions; zeolites

Funding

  1. Cummins, Inc.
  2. US Department of Energy (DOE), Energy Efficiency and Renewable Energy, Vehicle Technologies Office

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A solid-state ion-exchange method was developed to synthesize Cu-SSZ-13 catalysts with excellent performance in the selective catalytic reduction of NOx with NH3 (NH3-SCR) and with durable hydrothermal stability. Experiments provide evidence that isolated Cu ions were successfully exchanged into the pores, which are the active centers for the NH3-SCR reaction.

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