Adjusting the Acid Strength of Hybrid Solid Acids in Confined Nanospace
文献类型：期刊论文
| 作者 | Guo, Miao1,2; Zhang, Xiaomin1,2; Xiao, Bing1; Chen, Jingjing1; Yang, Qihua1 |
| 刊名 | TOPICS IN CATALYSIS
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 59期号:19-20页码:1748-1756 |
| 关键词 | Solid acid Acid strength Yolk-shell Sulfonated polystyrene Esterification |
| 英文摘要 | The acid strength is one of the most important issues in solid acid. Herein, we report an efficient strategy for controlling the acid strength of sulfonated polystyrene (PS-SO3H) within mesosilica hollow nanospheres. The sulfonation of PS@SiO2 core-shell nanospheres with surfactant un-removed, partially removed and totally removed results in the formation of PS-SO3H@SiO2 with core-shell, yolk-shell and hollow nanostructures, respectively. The results of P-31 MAS NMR using triethylphosphine oxide as a base probe molecule show that the acid strength of solid acids depends on their nanostructures. The yolk-shell and hollow nanostructures respectively afford the strongest and the weakest acid strength, suggesting the different aggregation degree of PS-SO3H confined in nanospace during the sulfonation process. All the solid catalysts afford much higher activity than Amberlyst resin in esterification reaction. The yolk-shell nanostructured solid acid with the strongest acid strength shows the highest activity, suggesting the positive effect of the acid strength on the catalytic activity. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical |
| 关键词[WOS] | ION-EXCHANGE-RESINS ; ETHYL OCTYL ETHER ; HETEROGENEOUS CATALYSIS ; MESOPOROUS SILICA ; PROBE MOLECULES ; STATE NMR ; ESTERIFICATION ; CYCLOHEXENE ; SELECTIVITY ; ALKYLATION |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000388825800009 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150447]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Miao,Zhang, Xiaomin,Xiao, Bing,et al. Adjusting the Acid Strength of Hybrid Solid Acids in Confined Nanospace[J]. TOPICS IN CATALYSIS,2016,59(19-20):1748-1756. |
| APA | Guo, Miao,Zhang, Xiaomin,Xiao, Bing,Chen, Jingjing,&Yang, Qihua.(2016).Adjusting the Acid Strength of Hybrid Solid Acids in Confined Nanospace.TOPICS IN CATALYSIS,59(19-20),1748-1756. |
| MLA | Guo, Miao,et al."Adjusting the Acid Strength of Hybrid Solid Acids in Confined Nanospace".TOPICS IN CATALYSIS 59.19-20(2016):1748-1756. |
入库方式： OAI收割
来源：大连化学物理研究所
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