Determination of the Active Cu Environment in SSZ-13 under Standard SCR Conditions with <i>Operando</i> X-ray Absorption

Bates, Shane A.

Thursday, June 6, 2013: 11:00 AM

Jones (Galt House Hotel)

Shane A. Bates¹, Vincent F. Kispersky¹, Jeffrey T. Miller², Trunojoyo Anggara³, Jean-Sabin McEwen⁴, William F. Schneider³, Aleksey Yezerets⁵, W. Nicholas Delgass¹ and Fabio H. Ribeiro¹, (1)Purdue University, USA, (2)Argonne National Laboratory, USA, (3)University of Notre Dame, USA, (4)Washington State University, USA, (5)Cummins Inc., USA.

In this study, we demonstrate the presence of a Cu redox cycle between 2-coordinate Cu(I) and 4-coordinate Cu(II) under standard SCR conditions in Cu/SSZ-13 using operando x-ray absorption spectroscopy. We conclude that any proposed standard SCR mechanism should account for this observed redox cycle.

Extended Abstracts:

121129_NAMabstract_ShaneBates_final.pdf (247.6KB) - Extended Abstract

O-Th-Jon-7 Determination of the Active Cu Environment in SSZ-13 under Standard SCR Conditions with Operando X-ray Absorption