Preparation of Pd/(Ce1 - xYx)O2/γ-Al2O3/cordierite catalysts and its catalytic combustion activity for methane

被引：9

作者：

Liao, Hengcheng ^{[1
]}

Liu, Miaomiao ^{[1
]}

Zuo, Peiyuang ^{[1
]}

机构：

[1] Southeast Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Adv Met Mat, Nanjing 211189, Jiangsu, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2016年 / 76卷

关键词：

Cerium; Yttrium; Palladium; Coating; Catalytic activity; Methane; THERMAL-STABILITY; PERFORMANCE; OXIDATION; PR;

D O I：

10.1016/j.catcom.2015.12.028

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：

A series of (Ce-1 (-) Y-x(x))O-2 (x = 0,0.15,0.35,0.5) coatings on gamma-Al2O3 pre-coated cordierite honeycomb were prepared by sol-gel method, and then palladium was loaded by aqueous solution impregnation deposition with Pd(NO3)(2) as precursor. The structure and morphology of samples were evaluated and the catalytic combustion activity for methane was also discussed. (Ce-1 (-) Y-x(x))O-2 synthesized by sol-gel has a single-phase cubic fluorite structure. Increasing the Y/Ce ratio can significantly improve the inner surface morphology of the honeycomb channels and also the coating mechanical stability, and leads to a considerable improvement in the catalytic activity of the prepared catalysts for methane. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：62 / 66

页数：5

共 23 条

[1] Thermal stability of alumina aerogel doped with yttrium oxide, used as a catalyst support for the thermocatalytic cracking (TCC) process: An investigation of its textural and structural properties [J].