Supersonic cold spraying for zeolitic metal-organic framework films

Do Yeon Kim, Bhavana N. Joshi, Jong Gun Lee, Jong Hyuk Lee, Ji Sun Lee, Young Kyu Hwang, Jong San Chang, Salem Al-Deyab, Jin Chong Tan, Suk Goo Yoon

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)49-56
Number of pages8
JournalChemical Engineering Journal
Volume295
DOIs
Publication statusPublished - 2016 Jul 1

Keywords

  • Metal-organic framework
  • Supersonic spray-coating

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering
  • Environmental Chemistry

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  • Cite this

    Kim, D. Y., Joshi, B. N., Lee, J. G., Lee, J. H., Lee, J. S., Hwang, Y. K., Chang, J. S., Al-Deyab, S., Tan, J. C., & Yoon, S. G. (2016). Supersonic cold spraying for zeolitic metal-organic framework films. Chemical Engineering Journal, 295, 49-56. https://doi.org/10.1016/j.cej.2016.03.029