Heat-Treatment of Defective UiO-66 from Modulated Synthesis: Adsorption and Stability Studies | Zendy

Yang Jiao | Zendy; Yang Liu | Zendy; Guanghui Zhu | Zendy; Julian T. Hungerford | Zendy; Souryadeep Bhattacharyya | Zendy; Ryan P. Lively | Zendy; David S. Sholl | Zendy; Krista S. Walton | Zendy

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Heat-Treatment of Defective UiO-66 from Modulated Synthesis: Adsorption and Stability Studies

Author(s) -

Yang Jiao,

Yang Liu,

Guanghui Zhu,

Julian T. Hungerford,

Souryadeep Bhattacharyya,

Ryan P. Lively,

David S. Sholl,

Krista S. Walton

Publication year - 2017

Publication title -

the journal of physical chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.401

H-Index - 289

eISSN - 1932-7455

pISSN - 1932-7447

DOI - 10.1021/acs.jpcc.7b07772

Subject(s) - adsorption , chemical stability , cyclohexane , materials science , structural stability , chemical engineering , metal organic framework , molecule , cluster (spacecraft) , work (physics) , thermal stability , nanotechnology , chemical physics , chemistry , organic chemistry , thermodynamics , physics , structural engineering , computer science , engineering , programming language

Defect engineering in metal–organic frameworks (MOFs) is an emerging strategy that can be used to control physical or chemical characteristics of MOFs, including adsorption behavior and textural, mechanical, and conductive properties. Understanding the impact of defects on textural properties and chemical stability of MOFs is imperative to the development of MOFs with tunable defect sites. In this work, systematic adsorption measurements were performed with three adsorbate molecules (SO2, benzene, and cyclohexane) to investigate changes in the pore size of defective UiO-66. Compared to the parent UiO-66, the defective UiO-66 shows significant changes in adsorption capacities among the selected adsorbate molecules, demonstrating that pore size is significantly enlarged by the missing cluster defects. BET surface area analysis and DFT calculations were also performed to interrogate the chemical stability of the defective MOFs after exposure to water and acidic environments. This work shows that pore size ca...

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