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[1]吕保帅,周洁,蒙旭雯,等.金属有机多面体基包覆型微球制备及CO2环加成反应[J].南京工业大学学报(自然科学版),2020,42(04):536-542.[doi:10.3969/j.issn.1671-7627.2020.04.013]
 LYU Baoshuai,ZHOU Jie,MENG Xuwen,et al.Preparation of coated microsphere based upon metal organic polyhedra for CO2 cycloaddition reaction[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2020,42(04):536-542.[doi:10.3969/j.issn.1671-7627.2020.04.013]
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金属有机多面体基包覆型微球制备及CO2环加成反应()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
42
期数:
2020年04期
页码:
536-542
栏目:
出版日期:
2020-07-17

文章信息/Info

Title:
Preparation of coated microsphere based upon metal organic polyhedra for CO2 cycloaddition reaction
文章编号:
1671-7627(2020)04-0536-07
作者:
吕保帅周洁蒙旭雯张竹修汤吉海崔咪芬乔旭
南京工业大学 化工学院 材料化学工程国家重点实验室,江苏 南京 211800
Author(s):
LYU BaoshuaiZHOU JieMENG XuwenZHANG ZhuxiuTANG Jihai CUI MifenQIAO Xu
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211800, China
关键词:
金属有机多面体(MOP) 原位合成 介孔微球 环加成反应
Keywords:
metal organic polyhedra(MOP) in-situ synthesis mesoporous microsphere cycloaddition reaction
分类号:
TQ426.68
DOI:
10.3969/j.issn.1671-7627.2020.04.013
文献标志码:
A
摘要:
采用原位合成法在铜基海藻酸-壳聚糖-SiO2(Cu-ALG-CS-SiO2)内部生长金属有机多面体(MOP),制备MOP基包覆型微球MOP-ALG-CS-SiO2。通过X线衍射(XRD)、N2吸附-脱附、透射电子显微镜(TEM)等方法对MOP-ALG-CS-SiO2的晶形、孔径和形貌进行分析并考察MOP-ALG-CS-SiO2催化环氧化合物与CO2环加成制备环状碳酸酯的反应性能。结果表明:MOP-ALG-CS-SiO2具有无定形的介孔结构,MOP在MOP-ALG-CS-SiO2中高度分散,解决了MOP基复合材料中普遍存在的稳定性和分散性不好的问题。MOP-ALG-CS-SiO2在催化环氧丙烷与CO2环加成反应中,环氧丙烷转化率为84.1%、碳酸丙烯酯选择性为99.7%,催化性能优于MOP、MOP-ALG-CS和HKUST-1。此外,MOP-ALG-CS-SiO2在催化其他类型环氧化物与CO2环加成反应中均表现出较高的催化活性和产物选择性。
Abstract:
Coated microspheres based upon metal organic polyhedra(MOP)were prepared by in-situ synthesis in which MOP grew in the copper-based alginate-chitosan-SiO2(Cu-ALG-CS-SiO2)microspheres.The crystal form, pore size and morphology of MOP-ALG-CS-SiO2 were characterized by X-ray diffraction(XRD), N2 adsorption-desorption and transmission electron microscopy(TEM). The catalytic activity of MOP-ALG-CS-SiO2 was evaluated by the CO2 cycloadditon with epoxides. Results showed that MOP-ALG-CS-SiO2 had an amorphous mesoporous structure and MOP were highly dispersed within the microspheres, which solved the problems of poor stability and aggregation in the MOP-based composites.MOP-ALG-CS-SiO2 had better catalytic activity than MOP, MOP-ALG-CS and HKUST-1 in the CO2cycloaddition with propylene oxide. The conversion of propylene oxide and the selectivity of propylene carbonate were 84.1% and 99.7%, respectively. In addition, MOP-ALG-CS-SiO2exhibited excellent catalytic activity for CO2 cycloaddition with other epoxides.

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备注/Memo

备注/Memo:
收稿日期:2019-04-26
基金项目:国家自然科学基金(21808104, 21676141); 江苏省自然科学基金(BK20170989); 江苏省高等学校自然科学基金(17KJB530005); 江苏省“333”工程(BRA2016418); 江苏省“六大人才高峰”项目(XCL-017)
作者简介:吕保帅(1991—),男,E-mail:15105177855@163.com; 汤吉海(联系人),教授,E-mail:jhtang@njtech.edu.cn.
引用格式:吕保帅,周洁,蒙旭雯,等.金属有机多面体基包覆型微球制备及CO2环加成反应[J].南京工业大学学报(自然科学版),2020,42(4):536-542.
LYU Baoshuai, ZHOU Jie, MENG Xuwen, et al. Preparation of coated microsphere based upon metal organic polyhedra for CO2 cycloaddition reaction[J].Journal of Nanjing Tech University(Natural Science Edition),2020,42(4):536-542..
更新日期/Last Update: 2020-07-30