Supersonic cold spraying for zeolitic metal-organic framework films

被引：37

作者：

Kim, Do-Yeon ^{[1
]}

Joshi, Bhavana N. ^{[1
]}

Lee, Jong-Gun ^{[1
]}

Lee, Jong-Hyuk ^{[1
]}

Lee, Ji Sun ^{[2
]}

Hwang, Young Kyu ^{[2
]}

Chang, Jong-San ^{[2
,3
]}

Al-Deyab, Salem ^{[4
]}

Tan, Jin-Chong ^{[5
]}

Yoon, Sam S. ^{[1
]}

机构：

[1] Korea Univ, Sch Mech Engn, Seoul 136713, South Korea

[2] Korea Res Inst Chem Technol, Res Grp Nanocatalysts, Daejeon 305600, South Korea

[3] Sungkyunkwan Univ, Dept Chem, Suwon 440476, South Korea

[4] King Saud Univ, Dept Chem, Petrochem Res Chair, Riyadh 11451, Saudi Arabia

[5] Univ Oxford, Dept Engn Sci, MMC Lab, Parks Rd, Oxford OX1 3PJ, England

来源：

CHEMICAL ENGINEERING JOURNAL | 2016年 / 295卷

基金：

新加坡国家研究基金会;

关键词：

Metal-organic framework; Supersonic spray-coating; IMIDAZOLATE; ZIF-8; ADSORPTION; MEMBRANES; AMORPHIZATION; NANOPARTICLES; PRESSURE; COPPER;

D O I：

10.1016/j.cej.2016.03.029

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We describe the first use of high-rate supersonic spray coating to deposit thin films of ZIF-8, a zeolitic metal-organic framework (MOF), adopting a sodalite architecture. This cold-spray technique is versatile and scalable, with tunable processing parameters capable of generating either a textured crystalline film or a randomly oriented polycrystalline coating on both metallic and non-metallic substrates. We provide evidence that guest occupancy by organic solvents (dimethylformamide, dimethylacetamide, and dimethylsulfoxide) in the sodalite cage of ZIF-8 structurally stabilizes the framework against high velocity impact, resulting in the preferred orientations observed. Moreover, we show that amorphous ZIF-8 films can be straightforwardly obtained at high air pressure exceeding 7 bars in which the particle velocity is 500 m/s. It is anticipated that this high-throughput approach can be adapted to fabricate microstructurally compact and strongly adhered ZIF-8 films. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：49 / 56

页数：8

共 35 条

[1] Crystal engineering, structure-function relationships, and the future of metal-organic frameworks [J].