Perspective intermediate temperature ceria based catalysts for CO oxidation

被引：27

作者：

Zagaynov, Igor V. ^{[1
]}

Naumkin, Alexander V. ^{[2
]}

Grigoriev, Yuriy V. ^{[3
,4
]}

机构：

[1] Baikov Inst Met & Mat Sci, Moscow, Russia

[2] Nesmeyanov Inst Organoelement Cpds, Moscow, Russia

[3] Shubnikov Inst Crystallog, Moscow, Russia

[4] NRC Kurchatov Inst, Moscow, Russia

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2018年 / 236卷

基金：

俄罗斯科学基金会;

关键词：

Ceria; Solid solution; CO oxidation; MIXED-OXIDE CATALYSTS; SOLID-SOLUTIONS; SOOT OXIDATION; COMBUSTION;

D O I：

10.1016/j.apcatb.2018.05.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The work is focused on the investigation of the influence of ternary metal oxide promoted ceria based materials (Cu-Mn-Zr-Ce-O) with various Cu/Mn molar ratios on the physicochemical and catalytic properties for CO oxidation in model reaction. It is shown that no diffraction peaks corresponding to coper and/or manganese oxides were indicated, ensuring the formation of solid solution based on ceria. The crystallite size of all samples is about 7-9 nm, and did not depend on the Cu/Mn ratio. The optimum catalyst composition was Cu0.08Mn0.02(Zr-0.1)Ce0.9O2. To understand the feature of this optimum catalyst composition the investigation of structure and morphological characterization by XRD, TEM, HR TEM, TG-DSC, FTIR, Raman, and XPS of samples was carried out.

引用

收藏

页码：171 / 175

页数：5

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