纳米晶La1-xEuxFeO3的合成、表征及催化甲苯燃烧反应活性（英文）

被引：1

作者：

Seyed Ali HOSSEINI ^{[1
]}

Mohammad Taghi SADEGHISORKHANI ^{[2
]}

Leila KAFIAHMADI ^{[2
]}

Abdolali ALEMI ^{[2
]}

Aligholi NIAEI ^{[1
]}

Dariush SALARI ^{[1
]}

机构：

[1] Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz

[2] Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz

来源：

催化学报 | 2011年 / 32卷 / 09期

关键词：

D O I：

暂无

中图分类号：

O643.32 [催化反应];

学科分类号：

081705 ;

摘要：

Nanostructured LaFeO3 and substituted La1-xEuxFeO3 (x = 0.1, 0.15, and 0.2) perovskites were synthesized by sol-gel auto-combustion and their activities during the combustion of toluene were evaluated. The structure and physico-chemical properties of the perovskites were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and BET surface area analyses. The compounds were crystallized as a perovskite phase with an orthorhombic structure. The mean particle size of the perovskites increased with an increase in europium loading while the specific surface area decreased. Characterization data confirmed that a total insertion of Eu into LaFeO3 occurred at x ≤ 0.15. However, Eu2O3 segregation occurred to some extent especially at x >0.15. The catalytic activity of the catalysts increased substantially with an increase in Eu substitution in the evaluated range.

引用

页码：1465 / 1468

页数：4