Synthesis, characterization and reactivity of high hydrothermally stable Cu-SAPO-34 materials prepared by "one-pot" processes

Martinez-Franco R; Moliner M; Concepcion P; Thogersen JR; Corma A

Journal of Catalysis, Vol.314, 73-82, 2014

DOI10.1016/j.jcat.2014.03.018 Export Citation

Synthesis, characterization and reactivity of high hydrothermally stable Cu-SAPO-34 materials prepared by "one-pot" processes

Martinez-Franco R, Moliner M, Concepcion P, Thogersen JR, Corma A

A Cu-SAPO-34 material with very high activity for selective catalytic reduction (SCR) of NOx and hydrothermal stability has been synthesized following a sequential rationalized design. By using specific combinations of organic structure directing agents (OSDAs) and gel compositions in a "one-pot" method, it was possible to control Cu occupancy, framework Si distribution, and to maximize the yield of solids. The amount of Cu2+ is maximized and remains stable even after steaming at 750 degrees C for 13 h. (C) 2014 Elsevier Inc. All rights reserved.

Keywords:One-pot synthesis;Silicoaluminophosphate;SAPO-34;Selective catalytic reduction (SCR);Nitrogen oxides (NOx)