| Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior | |
| Department | 固体润滑国家重点实验室 |
Wang CJ(王春杰)1,2; Huang WZ(黄文治)1,2; Wang Y(王悦)1; Cheng YL(程永亮)3 ; Zou BL(邹兵林)1; Fan XZ(范熙之)1,2; Yang JL(杨吉利)1,2; Cao XQ(曹学强)1; Cao XQ(曹学强)
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| 2012 | |
| Source Publication | INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
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| ISSN | 0263-4368 |
| Volume | 31Pages:242-246 |
| Abstract | Monodispersed and uniformly distributed La2Ce2O7 nanocrystals were synthesized via the hydrothermal method using polyethyleneglycol (PEG) as surfactant. X-ray diffraction (XRD), Thermogravimetric analysis/Differential scanning calorimeter (TG/DSC), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy and High resolution transmission electron microscopy (HRTEM) were utilized to characterize the thermal decomposition, phase structure and morphology of the products. Qualitative analysis indicates that the products are comprised of well-dispersed square particles with cubic fluorite structure. The specific surface area and the average crystallite size of the as-prepared products are 195.59 m2 g−1 and 10–15 nm, respectively. The low effective activation energy (15.27±0.03 kJ mol−1) for crystal growth was obtained in the calcination temperature range of 700–1300 °C. The sintering behavior of the compacted body was also investigated, revealing that La2Ce2O7 has a low relative density and open channel morphology. |
| Keyword | Ceramic Nanomaterials Thermal Analysis Density |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.ijrmhm.2011.12.002 |
| Funding Organization | NSFC-50825204;NSFC-20921002;NSFC-51101143;Hunan Lotus Scholarship |
| Indexed By | SCI |
| Language | 英语 |
| compositor | 第三作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3344 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Cao XQ(曹学强) |
| Affiliation | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources Utilizat, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Wang CJ,Huang WZ,Wang Y,et al. Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2012,31:242-246. |
| APA | Wang CJ.,Huang WZ.,Wang Y.,Cheng YL.,Zou BL.,...&曹学强.(2012).Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,31,242-246. |
| MLA | Wang CJ,et al."Synthesis of monodispersed La2Ce2O7 nanocrystals via hydrothermal method: A study of crystal growth and sintering behavior".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 31(2012):242-246. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 242-246.PDF（843KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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