Oriented ZSM-5 growth onto a flat stainless steel support

JUAN M. ZAMARO; MARÍA A. ULLA; EDUARDO E. MIRÓ

Zaragoza, España. 22 de Julio

Congreso; 4 International Zeolite Membrane Meeting (IZMM4); 2007

Universidad de Zaragoza

The use of structured zeolitic materials for catalytic environmental applications has increased considerably. The secondary synthesis can help in obtaining preferential orientations which favor the catalytic performance [1]. Also in these applications metallic substrates has advantages because to their higher mechanical resistance, thermal conductivity and the possibility of allow higher cell densities. Fecralloy® supports were calcined at 900 ºC for a superficial Al2O3 segregation. After that were seeded with nanometric ZSM5 crystals and then subjected to a hydrothermal treatment for 24 h at 180 ºC [2]. The samples were characterized by Scanning Electron Microscopy (SEM), Electron Probe Micro Analysis (EPMA), X-ray Diffraction (XRD), NO Temperature-Programmed-Desorption (NO-TPD). Catalytic test for NOx SCR with methane were performed using In as the active ingredient.