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The present work, in which cellulose isolated from formic acid fractionation(FAC) is decorated with polyetherimide(PEI) to attain highly efficient cellulose-derived PdAgbimetallic catalyst(PdAg-PEI-FAC), has been investigated, and the catalyst properties are characterized by XRD, XPS, BET, ICP-AES and HAADF-STEM. The as-obtained Pd3.75Ag3.75-PEI-FAC exhibits excellent catalytic performance for H2 evolution from a sodium formate-free formic acid(FA) aqueous medium at ambient... 相似文献
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《环境科学学报(英文版)》2023,35(2):371-378
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. 相似文献
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