Rapid synthesis of nanoscale double metal cyanide catalysts by ball milling for the cycloaddition of CO2 and propylene oxide

被引：14

作者：

Guo Zhifang ^{[1
]}

Lin Qiang ^{[1
]}

Wang Xianghui ^{[1
]}

Yu Changjiang ^{[1
]}

Zhao Jie ^{[1
]}

Shao Yandong ^{[1
]}

Peng Ting ^{[1
]}

机构：

[1] Hainan Normal Univ, Coll Chem & Chem Engn, Haikou 571158, Hainan, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 124卷

关键词：

Particles; Nanosize; Amorphous materials; Double metal cyanide (DMC) catalyst; Cetyltrimethylammonium bromide; Ball milling; Cycloaddition; CARBON; COPOLYMERIZATION; TRANSFORMATION;

D O I：

10.1016/j.matlet.2014.03.076

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ball milling as a green and rapid synthetic technique has shown potential in the preparation of double metal cyanide (DMC) catalyst, which exhibits excellent catalytic activity for the solvent-free cycloaddition of CO2 and propylene oxide (PO). Effective Zn-Fe DMC catalysts with cetyltrimethylammonium bromide (CAB) were successfully obtained via ball milling. The characterization of Zn-Fe DMCs confirmed that CAB was incorporated into the structure of DMC and the particle size ranges from 79 nm to a minimum of 25 nm. The DMC complex was proven to be an effective catalyst for the cycloaddition of CO2 and propylene oxide (PO) (140 degrees C, 3 MPa, 6 h). The cyclic carbonate exhibited high conversion from 88.9% to 98.3% with high selectivity. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：184 / 187

页数：4

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