Isolated Cu2+ ions: active sites for selective catalytic reduction of NO

Satu T. Korhonen; Dustin W. Fickel; Raul F. Lobo; Bert M. Weckhuysen; Andrew M. Beale

doi:10.1039/C0CC04218H

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Isolated Cu²⁺ ions: active sites for selective catalytic reduction of NO†

Satu T. Korhonen,^ab Dustin W. Fickel,^c Raul F. Lobo,^c Bert M. Weckhuysen^b and Andrew M. Beale*^b

Author affiliations

* Corresponding authors

^a Materials Innovation Institute M2i, Mekelweg 2, 2628 CD Delft, The Netherlands

^b Inorganic Chemistry and Catalysis, Debye Institute for NanoMaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht, The Netherlands
E-mail: a.m.beale@uu.nl

^c Center for Catalytic Science and Technology, Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA

Abstract

Cu chabazite catalysts show remarkable low temperature activity in selective catalytic reduction (SCR) of NO. This high activity is due to the unique character of the zeolite framework that allows only the presence of one type of isolated mononuclear Cu²⁺ species. These Cu²⁺ species are the active sites for SCR.

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Supplementary files

(1) Equations for conversion of NO _x and selectivity to N ₂O, (2) preparation of CuZSM-5 and its performance in NH ₃-SCR and NO decomposition, (3) selectivity to N ₂O for CuCHA using either C ₃H ₆ or NH ₃ as reducing agents and during NO decomposition, (4) EXAFS analysis of the local environment around Cu ²⁺, (5) XANES for CuCHA, and (6) ex situ UV-Vis spectra for CuCHA, parent CHA, and CuZSM-5 PDF (375K)

Article information

DOI: https://doi.org/10.1039/C0CC04218H
Article type: Communication
Submitted: 04 Oct 2010
Accepted: 15 Nov 2010
First published: 29 Nov 2010

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Chem. Commun., 2011,47, 800-802

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Isolated Cu²⁺ ions: active sites for selective catalytic reduction of NO

S. T. Korhonen, D. W. Fickel, R. F. Lobo, B. M. Weckhuysen and A. M. Beale, Chem. Commun., 2011, 47, 800 DOI: 10.1039/C0CC04218H

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