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Open AccessFeature PaperReview

Recent Progress in Atomic-Level Understanding of Cu/SSZ-13 Selective Catalytic Reduction Catalysts

Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA 99352, USA
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Catalysts 2018, 8(4), 140; https://doi.org/10.3390/catal8040140
Received: 2 March 2018 / Revised: 27 March 2018 / Accepted: 28 March 2018 / Published: 31 March 2018
(This article belongs to the Special Issue Selective Catalytic Reduction of NOx)
Cu/SSZ-13 Selective Catalytic Reduction (SCR) catalysts have been extensively studied for the past five-plus years. New and exciting fundamental and applied science has appeared in the literature quite frequently over this time. In this short review, a few topics specifically focused on a molecular-level understanding of this catalyst are summarized: (1) The nature of the active sites and, in particular, their transformations under varying reaction conditions that include dehydration, the presence of the various SCR reactants and hydrothermal aging; (2) Discussions of standard and fast SCR reaction mechanisms. Considerable progress has been made, especially in the last couple of years, on standard SCR mechanisms. In contrast, mechanisms for fast SCR are much less understood. Possible reaction paths are hypothesized for this latter case to stimulate further investigations; (3) Discussions of rational catalyst design based on new knowledge obtained regarding catalyst stability, overall catalytic performance and mechanistic catalytic chemistry. View Full-Text
Keywords: selective catalytic reduction (SCR); zeolite; Cu/SSZ-13; reaction mechanisms; hydrothermal stability; standard SCR; fast SCR selective catalytic reduction (SCR); zeolite; Cu/SSZ-13; reaction mechanisms; hydrothermal stability; standard SCR; fast SCR
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MDPI and ACS Style

Gao, F.; Peden, C.H.F. Recent Progress in Atomic-Level Understanding of Cu/SSZ-13 Selective Catalytic Reduction Catalysts. Catalysts 2018, 8, 140.

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