A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability
文献类型：期刊论文
| 作者 | Lin, Sen1; Liu, Ruiyun1; Li, Niping2; Guo, Peng3 ; Shi, Lei2,4
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| 刊名 | NEW JOURNAL OF CHEMISTRY
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| 出版日期 | 2017-08-07 |
| 卷号 | 41期号:15页码:7634-7642 |
| DOI | 10.1039/c7nj01914a |
| 文献子类 | Article |
| 英文摘要 | The effect of an alkaline treatment on the mesoporous material Al-SBA-15 was investigated using powder X-ray diffraction (XRD), inductively coupled plasma (ICP) analysis, mid-infrared spectroscopy (IR), N-2 sorption isotherm measurements, transmission electron microscopy (TEM), scanning electron microscopy (SEM), solid state Al-27 MAS NMR analysis, and structural replicating technology. It was observed that elemental Si could be readily extracted from wall structures, and the Al-rich surface that was consequently exposed protected the uniform hexagonal arrays. The extracted substances rapidly accumulate inside the Al-SBA-15 mesopores and continuously dissolve and migrate into the alkaline solution upon a prolonged treatment time. Therefore, alkaline-treated Al-SBA-15 exhibits a larger pore size and a thinner wall than that before treatment. Due to its Al-rich surface and highly-open mesostructure, alkaline-treated Al-SBA-15 exhibits excellent catalytic performance in a low density polyethylene (LDPE) catalytic degradation reaction. The temperature corresponding to the maximum degradation rate was measured to be similar to 10 K lower than that in raw Al-SBA-15. More importantly, the secondary-scale mesopores inside the Al-SBA-15 walls were remarkably expanded, allowing efficient penetration of the carbon precursor. Its structural replica, CMK-3, has a highly ordered mesostructure, which is attributed to the formation of enhanced carbon sticks that connect the primary carbon rods. For the same reason, CMK-3 templated from alkaline-treated Al-SBA-15 exhibits a strong pressure resistant capability. The reduction in the surface area and pore volume after high-pressure treatment were calculated to be as low as 4.5% and 3.0%, respectively. |
| WOS关键词 | MFI ZEOLITES ; ZSM-5 ZEOLITES ; CATALYTIC-PROPERTIES ; PORE STRUCTURE ; DESILICATION ; CRACKING ; POSTTREATMENT ; SILICA ; DEALUMINATION ; PYROLYSIS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000406192800082 |
| 资助机构 | National Natural Science Foundation of China(51472256) |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/9611]  |
| 专题 | 青岛生物能源与过程研究所_多相催化转化团队 |
| 作者单位 | 1.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China 2.Qilu Univ Technol, Sch Chem & Pharmaceut Engn, Daxue Rd 3501, Jinan 250353, Shandong, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China 4.Qilu Univ Technol, Shandong Prov Key Lab Fine Chem, Daxue Rd 3501, Jinan 250353, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Sen,Liu, Ruiyun,Li, Niping,et al. A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability[J]. NEW JOURNAL OF CHEMISTRY,2017,41(15):7634-7642. |
| APA | Lin, Sen,Liu, Ruiyun,Li, Niping,Guo, Peng,&Shi, Lei.(2017).A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability.NEW JOURNAL OF CHEMISTRY,41(15),7634-7642. |
| MLA | Lin, Sen,et al."A controlled alkaline treatment of Al-SBA-15: a facile route to adjust the chemical composition and synthesize an ordered mesoporous carbon material, CMK-3, possessing strong pressure resistant capability".NEW JOURNAL OF CHEMISTRY 41.15(2017):7634-7642. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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