The OSRM reaction over gold promoted copper zinc catalyst

Abstract

Hydrogen production by oxidative steam reforming of methanol (OSRM) was investigated over CuOZnO-based catalysts promoted by Au, which were prepared by using co-precipitation and deposition-precipitation and were characterized by X-ray powder diffraction (XRD), H2-temperature programmed reduction (TPR), induced coupled plasma mass analyzer (ICP-MS), and transmission electron microscopy (TEM). We found that the reducibility of CuOZnO-based catalyst could be improved with increasing Au loading, which induced better performance at temperatures lower than 200°C. In addition, through calcination pretreatment, the residual chloride on the catalyst could be removed, which might expose more Au on the surface and result in a decrement of CO selectivity. © 2011 The Chinese Institute of Engineers.