The Effect of Surface Hydroxylation on MOF Formation on ALD Metal Oxides: MOF-525 on TiO2/Polypropylene for Catalytic Hydrolysis of Chemical Warfare Agent Simulants.,ACS Applied Materials & Interfaces

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The Effect of Surface Hydroxylation on MOF Formation on ALD Metal Oxides: MOF-525 on TiO2/Polypropylene for Catalytic Hydrolysis of Chemical Warfare Agent Simulants.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-02-06 , DOI: 10.1021/acsami.9b20910
Heather F Barton ₁ , Alexandra K Davis ₁ , Gregory N Parsons ₁

Affiliation

Metal-organic framework (MOF) fibrous composites were synthesized in a variety of methods in attempt to incorporate the highly effective reactivity of MOFs into a more facile and applicable format. Recent advances have demonstrated incorporating a metal oxide nucleation surface or reactive layer promotes conformal, well-adhered MOF growth on substrates. These materials have demonstrated promising reactivity in capturing or degrading chemical warfare agents and simulants. Here, we examine the mechanisms for MOF nucleation from metal oxide thin films to explore why some metal oxide sources are better suited for one synthesis mechanism over another. We isolate metal oxide extent of hydroxylation as an indicative factor as to whether the film serves as a nucleation promoter or may be converted directly to the MOF thin films. MOF-525 growth on Al2O3, TiO2, and ZnO coated fibers is demonstrated to corroborate these findings and used to degrade chemical warfare agent simulant dimethyl-4-nitrophenyl phosphate.

中文翻译：

表面羟基化对ALD金属氧化物上MOF形成的影响：TiO2 /聚丙烯上的MOF-525，用于化学战剂模拟物的催化水解。

尝试以多种方法合成金属有机骨架（MOF）纤维复合材料，以试图将MOF的高效反应性纳入一种更便捷和适用的形式。最近的进展表明，结合金属氧化物成核表面或反应层可促进在基材上共形，良好粘附的MOF生长。这些材料在捕获或降解化学战剂和模拟物方面显示出令人鼓舞的反应性。在这里，我们研究了金属氧化物薄膜中MOF成核的机理，以探讨为什么某些金属氧化物源比另一种更适合于一种合成机理。我们将金属氧化物的羟基化程度作为该膜是用作成核促进剂还是可以直接转化为MOF薄膜的指标。MOF-525在Al2O3上生长，

更新日期：2020-02-06

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