Effect of reduction pretreatments on PdAg/Al2O3 for HCHO and CO oxidation

被引：3
|
作者：
Meng, Liwei [1 ]
Han, Xue [2 ]
Yu, Lian [1 ]
Wang, Yafei [1 ]
机构：
[1] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China
[2] Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2023年 / 124卷
基金：
中国国家自然科学基金;
关键词：
PdAg; Reduction method; Catalytic oxidation; CO; CATALYTIC-OXIDATION; PD; RH;
D O I：
10.1016/j.jes.2021.08.051
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
PdAg/Al2O3 were pretreated by CO and H-2 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 (O-2-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 H-2 reduction method, CO reduction is more suitable for PdAg/Al2O3 pretreatment. PdAg/Al2O3-CO exhibited better catalytic performance. (C) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码：371 / 378
页数：8
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