A novel strategy for low-temperature synthesis of Ruddlesden-Popper type layered perovskite La3Mn2O7+delta for methane combustion
文献类型：期刊论文
| 作者 | Du XR(杜晓蕊)1,2 ; Zou GJ(邹国军)1; Zhang Y(张彦)1; Wang XL(王晓来)1
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| 刊名 | Journal of Materials Chemistry A
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:29页码:8411-8416 |
| ISSN号 | 2050-7488 |
| 通讯作者 | 邹国军 ; 王晓来 |
| 英文摘要 | In comparison to the conventional high-temperature (≥1300 ℃) preparation methods, a novel strategy for the synthesis of a Ruddlesden–Popper (R–P) type layered perovskite La3Mn2O7+δ (LLM) at a relatively low temperature (700 ℃) was proposed. The conventional perovskite LaMnO3 (LM) and the nominal La3Mn2O7+δ (NLM) synthesized by the citric acid sol–gel method were compared. Density functional theory calculations were performed to expound the synthesis strategy. The results of X-ray diffraction and high-resolution transmission electron microscopy demonstrated the formation of an R–P type layered perovskite crystal structure in the LLM samples. The results of X-ray photoelectron spectroscopy and hydrogen-temperature-programmed reduction showed that the LLM sample calcined at 700 ℃ possessed richer and more stable active lattice oxygen species than the other samples because of its two-dimensionally ordered loose intercalated structure. Thus, the LLM samples exhibited excellent thermal stability and higher activity for methane combustion than the LM and NLM samples. After calcination at 1000 ℃, the LLM samples still had a relatively higher specific surface area (15.28 m2 g_1) than the LM samples (6.64 m2 g_1). |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321310200015 |
| 公开日期 | 2013-12-02 |
| 源URL | [http://210.77.64.217/handle/362003/4262]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du XR,Zou GJ,Zhang Y,et al. A novel strategy for low-temperature synthesis of Ruddlesden-Popper type layered perovskite La3Mn2O7+delta for methane combustion[J]. Journal of Materials Chemistry A,2013,1(29):8411-8416. |
| APA | Du XR,Zou GJ,Zhang Y,&Wang XL.(2013).A novel strategy for low-temperature synthesis of Ruddlesden-Popper type layered perovskite La3Mn2O7+delta for methane combustion.Journal of Materials Chemistry A,1(29),8411-8416. |
| MLA | Du XR,et al."A novel strategy for low-temperature synthesis of Ruddlesden-Popper type layered perovskite La3Mn2O7+delta for methane combustion".Journal of Materials Chemistry A 1.29(2013):8411-8416. |
入库方式： OAI收割
来源：兰州化学物理研究所
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