A MOF-supported chromium catalyst for ethylene polymerization through post-synthetic modification

被引：36

作者：

Liu, Bing ^{[1
]}

Jie, Suyun ^{[1
]}

Bu, Zhiyang ^{[1
]}

Li, Bo-Geng ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem & Biol Engn, State Key Lab Chem Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2014年 / 387卷

基金：

中国国家自然科学基金;

关键词：

MOF; Chromium; Catalyst; Alkylaluminum; Ethylene polymerization; METAL-ORGANIC FRAMEWORKS; FUNCTIONALIZATION; CHEMISTRY; HYDROGEN; METHANE; STORAGE; DESIGN; SIZE;

D O I：

10.1016/j.molcata.2014.02.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

lsoreticular metal-organic framework-3 (IRMOF-3) has been post-synthetically modified to generate a Cr(III)-based heterogeneous catalyst (IRM0E-3-SI-Cr) for ethylene polymerization, which has been characterized by a variety of physical methods. The XRD analysis indicated that the structure integrity of the final solid was preserved after the functionalization with the imine and the subsequent coordination to chromium. The BET surface area of the final solid was slightly reduced as determined by N-2 adsorption-desorption experiments. The material exhibited a unique behavior for ethylene polymerization upon activation with various alkylaluminium co-catalysts, and the polyethylenes formed featured high molecular weights and broad molecular weight distributions. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：63 / 68

页数：6

共 46 条

[1] Probing the Lewis acidity and catalytic activity of the metal-organic framework [Cu3(btc)2] (BTC = benzene-1,3,5-tricarboxylate) [J].