| LaZnxFe1-xO3 钙钛矿型纳米催化剂的制备、表征及其甲苯燃烧性能 |
| |
| 作者姓名： | Seyed Ali HOSSEINI Mohammad Taghi SADEGHI Abdolali ALEMI Aligholi NIAEI Dariush SALARI Leila KAFI-AHMADI |
| |
| 作者单位： | Seyed Ali HOSSEINI,Aligholi NIAEI,Dariush SALARI(Department of Applied Chemistry,Faculty of Chemistry,University of Tabriz,Tabriz,Iran);Mohammad Taghi SADEGHI,Abdolali ALEMI,Leila KAFI-AHMADI(Department of Inorganic Chemistry,Faculty of Chemistry,University of Tabriz,Tabriz,Iran) |
| |
| 基金项目： | the Iranian Nanotechnology Initiative for financial support |
| |
| 摘 要： | Nanostructured LaFeO3 and substituted LaZnxFe1-xO3 (x = 0.01, 0.05, 0.1, 0.2, and 0.3) perovskites were synthesized by the sol-gel auto-combustion method and used in the catalytic combustion of toluene. Their structures and surface properties were investigated by X-ray diffraction, Fourier transmission infrared spectroscopy, BET surface area, and scanning electron microscopy. Characterization data revealed that the total insertion of zinc into LaFeO3 takes place when x ≤ 0.1. However, ZnO segregation occurs to some extent, especially at x > 0.1. The performance of these perovskites was evaluated by toluene combustion. The catalytic activity of the catalysts increased substantially with an increase in zinc substitution. These results can be attributed to the cooperative effect between LaZnxFe1-xO3 and the zinc oxide phases. The relative concentration of these phases determines their oxygen activation ability and reactivity.
|
| 关 键 词： | sol-gel auto-combustion perovskite toluene catalytic oxidation LaZnxFe1-xO3 |
| 收稿时间： | 2010-07-25 |
Synthesis, Characterization, and Performance of LaZnxFe1-xO3 Perovskite Nanocatalysts for Toluene Combustion |
| |
| Seyed Ali HOSSEINI,Mohammad Taghi SADEGHI,Abdolali ALEMI,Aligholi NIAEI,Dariush SALARI,Leila KAFI-AHMADI.Synthesis, Characterization, and Performance of LaZnxFe1-xO3 Perovskite Nanocatalysts for Toluene Combustion[J].Chinese Journal of Catalysis,2010,31(7):747-750. |
| |
| Authors: | Seyed Ali HOSSEINI Mohammad Taghi SADEGHI Abdolali ALEMI Aligholi NIAEI Dariush SALARI Leila KAFI-AHMADI |
| |
| Institution: | 1. Department of Applied Chemistry,Faculty of Chemistry,University of Tabriz,Tabriz,Iran
2. Department of Inorganic Chemistry,Faculty of Chemistry,University of Tabriz,Tabriz,Iran |
| |
| Abstract: | Nanostructured LaFeO3 and substituted LaZnxFe1-xO3(x = 0.01,0.05,0.1,0.2,and 0.3)perovskites were synthesized by the sol-gel auto-combustion method and used in the catalytic combustion of toluene.Their structures and surface properties were investigated by X-ray diffraction,Fourier transmission infrared spectroscopy,BET surface area,and scanning electron microscopy.Characterization data revealed that the total insertion of zinc into LaFeO3 takes place when x ≤ 0.1.However,ZnO segregation occurs to some extent,especially at x > 0.1.The performance of these perovskites was evaluated by toluene combustion.The catalytic activity of the catalysts increased substantially with an increase in zinc substitution.These results can be attributed to the cooperative effect between LaZnxFe1-xO3 and the zinc oxide phases.The relative concentration of these phases determines their oxygen activation ability and reactivity. |
| |
| Keywords: | sol-gel auto-combustion perovskite toluene catalytic oxidation LaZnxFe1-xO3 |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《催化学报》浏览原始摘要信息 |
| 点击此处可从《催化学报》下载免费的PDF全文 |
|
