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

2020 ◽  
Vol 12 (13) ◽  
pp. 14690-14701 ◽  
Author(s):  
Heather F. Barton ◽  
Alexandra K. Davis ◽  
Gregory N. Parsons
Keyword(s):  
Metal Oxides ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Catalytic Hydrolysis ◽  
Surface Hydroxylation ◽  
Hydrolysis Of ◽  
Effect Of Surface

Single-component frameworks for heterogeneous catalytic hydrolysis of organophosphorous compounds in pure water

2019 ◽  
Vol 55 (49) ◽  
pp. 7005-7008 ◽  
Author(s):  
Sergio J. Garibay ◽  
Omar K. Farha ◽  
Jared B. DeCoste
Keyword(s):  
Pure Water ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Single Component ◽  
Catalytic Hydrolysis ◽  
Heterogeneous Catalytic ◽  
Organophosphorous Compounds ◽  
Aqueous Conditions ◽  
Hydrolysis Of ◽  
Component Frameworks

Amine linkers incorporated in Zr-MOFs aid in organophosphorous chemical warfare agent hydrolysis under solely aqueous conditions

scholarly journals Chemical Warfare Agent Simulants in Gamble’s Fluid: Is the Fluid Toxic? Can It Be Made Safer by Inclusion of Solid Nanocrystalline Metal Oxides?

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Dennis Karote ◽  
Brandon Walker ◽  
Huaien Dai ◽  
Ramaswamy Krishnamoorthi ◽  
Janis Voo ◽  
...  
Keyword(s):  
Solid State ◽  
Metal Oxides ◽  
Degradation Product ◽  
Chemical Warfare Agent ◽  
Degradation Pathway ◽  
Chemical Warfare ◽  
Nanocrystalline Metal ◽  
Condensation Products ◽  
Data Analyses ◽  
Hydrolysis Of

The reactions of chemical warfare agent simulants, 2-chloroethyl ethyl sulfide (2-CEES) and di-i-propyl fluoro phosphate (DFP), in fluids have been investigated. Data analyses confirm the major degradation pathway to be hydrolysis of 2-CEES to 2-hydroxyethyl ethyl sulfide, along with minor self-condensation products. Among the three fluids examined, 2-CEES degradation was the fastest in Gamble’s fluid during a 96 h period. Upon addition of Exceptional Hazard Attenuation Materials (EHAMs) to 2-CEES containing Gamble’s fluid, degradation was generally improved during the first 24 h period. The 96 h outcome was similar for fluid samples with or without EHAM 2 and EHAM 4. EHAM 1-added fluid contained only one degradation product, 2-nitroethyl ethyl sulfide. DFP degradation was the slowest in Gamble’s fluid, but was enhanced by the addition of EHAMs. FTIR and solid state31P NMR confirm the destructive adsorption of 2-CEES and DFP by the EHAMs. The results collectively demonstrate that 2-CEES and DFP decompose to various extents in Gamble’s fluid over a 96 h period but the fluid still contains a considerable amount of intact simulant. EHAM 1 appears to be promising for 2-CEES and DFP mitigation while EHAM 2 and EHAM 4 work well for early on concentration reduction of 2-CEES and DFP.

Effect of Surface Charge Density of Graphene Oxide on Chemical Warfare Agent Simulants Blocking

2021 ◽  
pp. 152225
Author(s):  
Youna Kim ◽  
Moonhyun Choi ◽  
Jiwoong Heo ◽  
Sungwon Jung ◽  
Dongwon Ka ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Charge Density ◽  
Surface Charge ◽  
Surface Charge Density ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Effect Of Surface

scholarly journals The Hydrolysis of Carbonyl Sulfide at Low Temperature: A Review

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Shunzheng Zhao ◽  
Honghong Yi ◽  
Xiaolong Tang ◽  
Shanxue Jiang ◽  
Fengyu Gao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Carbonyl Sulfide ◽  
Earth Metal ◽  
Catalytic Hydrolysis ◽  
Reaction Conditions ◽  
Cos Hydrolysis ◽  
Reaction Atmosphere ◽  
Hydrolysis Of

Catalytic hydrolysis technology of carbonyl sulfide (COS) at low temperature was reviewed, including the development of catalysts, reaction kinetics, and reaction mechanism of COS hydrolysis. It was indicated that the catalysts are mainly involved metal oxide and activated carbon. The active ingredients which can load on COS hydrolysis catalyst include alkali metal, alkaline earth metal, transition metal oxides, rare earth metal oxides, mixed metal oxides, and nanometal oxides. The catalytic hydrolysis of COS is a first-order reaction with respect to carbonyl sulfide, while the reaction order of water changes as the reaction conditions change. The controlling steps are also different because the reaction conditions such as concentration of carbonyl sulfide, reaction temperature, water-air ratio, and reaction atmosphere are different. The hydrolysis of carbonyl sulfide is base-catalyzed reaction, and the force of the base site has an important effect on the hydrolysis of carbonyl sulfide.

Effective, Facile, and Selective Hydrolysis of the Chemical Warfare Agent VX Using Zr6-Based Metal–Organic Frameworks

2015 ◽  
Vol 54 (22) ◽  
pp. 10829-10833 ◽  
Author(s):  
Su-Young Moon ◽  
George W. Wagner ◽  
Joseph E. Mondloch ◽  
Gregory W. Peterson ◽  
Jared B. DeCoste ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Selective Hydrolysis ◽  
Metal Organic ◽  
Hydrolysis Of

Influence of cyclic and acyclic cucurbiturils on the degradation pathways of the chemical warfare agent VX

2020 ◽  
Vol 18 (27) ◽  
pp. 5218-5227
Author(s):  
Beatrice Andrae ◽  
Daniel Bauer ◽  
Patrick Gaß ◽  
Marianne Koller ◽  
Franz Worek ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Bond Cleavage ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Degradation Pathways ◽  
Hydrolysis Of

Cucurbit[7]uril and an acyclic cucurbituril cause the chemical warfare agent VX to preferentially decompose in basic aqueous solution under C–S bond cleavage rather than by the normally preferred hydrolysis of the P–O and P–S bonds.

Electrospun metal–organic framework polymer composites for the catalytic degradation of methyl paraoxon

2017 ◽  
Vol 41 (17) ◽  
pp. 8748-8753 ◽  
Author(s):  
Danielle L. McCarthy ◽  
Jian Liu ◽  
Derek B. Dwyer ◽  
Jennifer L. Troiano ◽  
Steven M. Boyer ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Polymer Composites ◽  
Metal Organic Framework ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Catalytic Degradation ◽  
Polymer Fibers ◽  
Catalytic Hydrolysis ◽  
Toxic Product ◽  
Metal Organic

Electrospun polymer fibers containing poly(methyl methacrylate) (PMMA), Ti(OH)4, and UiO-66 convert a chemical warfare agent simulant to non-toxic product via catalytic hydrolysis.

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