Synthesis and characterization of CuO/ZnO–Al 2O 3 catalyst washcoat thin films with ZrO 2 sols for steam reforming of methanol in a microreactor

Abstract

Inner surface and the fine structure of the microchannel reactor using porous alumina support CuO/ZnO mixed with ZrO 2 sol washcoat catalyst for autothermal reforming of methanol have been synthesized and characterized. Experimentally, catalyst slurries have been dried at 298 K for 5 h and then calcined at 623 K for 2 h to increase the surface area and specific pore structures of washcoat catalysts. Intensities of Cu content from XRD patterns indicate that Al 2O 3 assign with Cu(0) to from CuAl 2O 4. The EXAFS data reveals that the Cu species in washcoat have a Cu–O bonding with a bond distance of 1.96 Å and a coordination number of 2.95, respectively.