Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over hexagonal Mg(OH)(2) nanoflakes
文献类型：期刊论文
| 作者 | Wang, Qiang1,2; Li, Chunhong3,4; Guo, Ming1,2; Luo, Shengjun5; Hu, Changwen6,7 |
| 刊名 | INORGANIC CHEMISTRY FRONTIERS
 |
| 出版日期 | 2015 |
| 卷号 | 2期号:1页码:47-54 |
| 英文摘要 | Hexagonal Mg(OH)(2) nanoflakes were synthesized via a hydrothermal method in the presence of polyethylene glycol 20000 (PEG-20000). X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM) were applied to characterize the composition, morphologies and structure of the Mg(OH)(2) nanoflakes. Brunauer-Emmett-Teller (BET) analysis was performed to investigate the porous structure and surface area of the as-obtained nanoflakes. The transesterification of dimethyl carbonate (DMC) with phenol to produce diphenyl carbonate (DPC) was carried out over the hexagonal Mg(OH)(2) nanoflakes. The evaluation results showed that the hexagonal Mg(OH)(2) nanoflakes had better activity and excellent selectivity to target products compared with many conventional ester exchange catalysts. Compared with other catalysts, such as AlCl3, ZnCl2, and irregular Mg(OH)(2) synthesized via a hydrothermal method without PEG-20000, which all have been widely used as catalysts for this transesterification reaction, Mg(OH)(2) nanoflakes were more stable and showed a relatively high activity with a low catalyst amount. The transesterification reaction process was also analyzed with the classic thermodynamic theory, and when the reaction was carried out at 453 K, with a molar ratio of phenol to DMC of 2 : 1, a reaction time of 13 h, and a catalyst amount of 0.2% (molar ratio to phenol), the selectivity of the transesterification reaction reached 92.3%. Moreover, the deactivated hexagonal Mg(OH)(2) nanoflakes could be easily reactivated by calcination under vacuum, and the regenerated Mg(OH)(2) nanoflakes showed the catalytic activity almost as high as that of the fresh sample. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Inorganic & Nuclear |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | ZINC DOUBLE OXIDE ; MAGNESIUM-HYDROXIDE ; CATALYST ; OXALATE ; PARTICLES ; DIALKYL ; SILICA ; PHASE ; HEAT ; ACID |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000364544300006 |
| 公开日期 | 2015-12-29 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/6777]  |
| 专题 | 青岛生物能源与过程研究所_生物制氢与沼气团队 |
| 作者单位 | 1.Capital Normal Univ, Lab Microsized Funct Mat, Beijing, Peoples R China 2.Capital Normal Univ, Coll Elementary Educ, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100080, Peoples R China 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing, Peoples R China 5.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao, Peoples R China 6.Beijing Inst Technol, Key Lab Cluster Sci, Minist Educ China, Inst Chem Phys, Beijing 100081, Peoples R China 7.Beijing Inst Technol, Dept Chem, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qiang,Li, Chunhong,Guo, Ming,et al. Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over hexagonal Mg(OH)(2) nanoflakes[J]. INORGANIC CHEMISTRY FRONTIERS,2015,2(1):47-54. |
| APA | Wang, Qiang,Li, Chunhong,Guo, Ming,Luo, Shengjun,&Hu, Changwen.(2015).Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over hexagonal Mg(OH)(2) nanoflakes.INORGANIC CHEMISTRY FRONTIERS,2(1),47-54. |
| MLA | Wang, Qiang,et al."Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over hexagonal Mg(OH)(2) nanoflakes".INORGANIC CHEMISTRY FRONTIERS 2.1(2015):47-54. |
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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