Abstract
PdAg/Al2O3 were pretreated by CO and H2 reduction pretreatments, respectively. The reduced catalysts were tested for HCHO and CO oxidation and characterized by Brunner Emmet Teller (BET), X-ray diffraction (XRD), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS) and oxygen temperature programmed desorption (O2-TPD). These results indicate that the pretreatments have effect on PdAg reconstruction, PdAg particle size and active oxygen species, which are responsible for the catalytic performance. Compared with H2 reduction method, CO reduction is more suitable for PdAg/Al2O3 pretreatment. PdAg/Al2O3-CO exhibited better catalytic performance.
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