Catalytic performance of La0.8Sr0.2FeMn1.5Al9.5O19-delta hexaaluminate-typed aerosol catalysts
文献类型：期刊论文
| 作者 | Zhang Ya-Yuan1,2; Zheng, Jiang1; Zhang Shi-Chao2; Zhu Qing-Shan1 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 24期号:2页码:211-216 |
| 关键词 | supercritical drying hexaaluminate aerosol catalytic combustion of methane |
| ISSN号 | 1000-6818 |
| 其他题名 | Acta Phys.-Chim. Sin. |
| 中文摘要 | La0.8Sr0.2FeMn1.5Al9.5O19-delta (LSFMAO) hexaaluminate aerosol was prepared by co-precipitation combined with supercritical drying and high temperature calcinations. XRD, SEM, BET, TPR characterizations as well as methane catalytic combustion were performed to investigate the effects of supercritical drying and high temperature calcinations on the structure and reactivity of the catalysts. The results indicated that the plate-like LSFMAO hexaaluminate aerosol was formed after calcination of the aerosol precursors at 1200 degrees C. The as-prepared LSFMAO hexaaluminate possesses large specific surface area (16 m(2)center dot g(-1)) and excellent catalytic combustion activity at high gas space velocity. However, further calcinations of the LSFMAO hexaaluminate at 1300 degrees C and 1400 degrees C resulted in severe sintering and reduction of catalytic activity. These results revealed that supercritical drying was helpful to promote the combustion activity and resist sintering of the LSFMAO hexaaluminate up to 1200 degrees C above which the sintering resistance and redox performance of LSFMAO hexaaluminates were mainly determined by the components and intrinsic properties. |
| 英文摘要 | La0.8Sr0.2FeMn1.5Al9.5O19-delta (LSFMAO) hexaaluminate aerosol was prepared by co-precipitation combined with supercritical drying and high temperature calcinations. XRD, SEM, BET, TPR characterizations as well as methane catalytic combustion were performed to investigate the effects of supercritical drying and high temperature calcinations on the structure and reactivity of the catalysts. The results indicated that the plate-like LSFMAO hexaaluminate aerosol was formed after calcination of the aerosol precursors at 1200 degrees C. The as-prepared LSFMAO hexaaluminate possesses large specific surface area (16 m(2)center dot g(-1)) and excellent catalytic combustion activity at high gas space velocity. However, further calcinations of the LSFMAO hexaaluminate at 1300 degrees C and 1400 degrees C resulted in severe sintering and reduction of catalytic activity. These results revealed that supercritical drying was helpful to promote the combustion activity and resist sintering of the LSFMAO hexaaluminate up to 1200 degrees C above which the sintering resistance and redox performance of LSFMAO hexaaluminates were mainly determined by the components and intrinsic properties. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | REVERSE MICROEMULSION SYNTHESIS ; HIGH-TEMPERATURE COMBUSTION ; METHANE COMBUSTION ; CRYSTAL-STRUCTURE ; SURFACE-AREA ; MN ; BAMNAL11O19-ALPHA ; MORPHOLOGY ; STABILITY ; SUPPORTS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000253447600006 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2925]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China 2.Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Ya-Yuan,Zheng, Jiang,Zhang Shi-Chao,et al. Catalytic performance of La0.8Sr0.2FeMn1.5Al9.5O19-delta hexaaluminate-typed aerosol catalysts[J]. ACTA PHYSICO-CHIMICA SINICA,2008,24(2):211-216. |
| APA | Zhang Ya-Yuan,Zheng, Jiang,Zhang Shi-Chao,&Zhu Qing-Shan.(2008).Catalytic performance of La0.8Sr0.2FeMn1.5Al9.5O19-delta hexaaluminate-typed aerosol catalysts.ACTA PHYSICO-CHIMICA SINICA,24(2),211-216. |
| MLA | Zhang Ya-Yuan,et al."Catalytic performance of La0.8Sr0.2FeMn1.5Al9.5O19-delta hexaaluminate-typed aerosol catalysts".ACTA PHYSICO-CHIMICA SINICA 24.2(2008):211-216. |
入库方式： OAI收割
来源：过程工程研究所
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