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Vapor-phase decomposition of dimethyl methylphosphonate (DMMP),a sarin surrogate,in presence of metal oxides

Defence Technology（防务技术） 2021年第4期17卷 1095-1114页

作者： Shomik Mukhopadhyay Mirko Schoenitz Edward L.Dreizin New Jersey Institute of Technology NewarkNJUSA

Chemical warfare agents(CWA)are stockpiled in large quantities across the *** stored in inaccessible facilities need to be destroyed rapidly without dispersing the compounds to surrounding ***-based energetic formulations are used in such prompt defeat applications to rapidly decompose the CWA by generating a high temperature *** alternate,and possibly a more effective decomposition pathway could be provided by chemicidal action of aerosolized condensed combustion products,which typically consist of metal *** fumes that escape the high temperature blast zone can be neutralized by smoke generated during combustion,depending on the particle size,surface characteristics,chemical properties,and concentration of this *** review considers relevant experimental and modeling studies quantifying decomposition of CWA comprising organophosphorus compounds and their surrogates on the surface of various metal *** methylphosphonate(DMMP),a sarine surrogate,was used most commonly for such *** reported efforts focused on the mechanisms of adsorption of DMMP to various metal oxides and initial reaction steps cleaving various bonds from the chemisorbed *** selected oxides,these experiments were supported by quantum-mechanical *** other studies,the capacity of oxide surfaces to adsorb and decompose DMMP was *** most cases,porous catalysts were used although limited experimental data are available for aerosolized nonporous oxide *** reported experimental data applicable to scenarios involving prompt decomposition of CWA are *** is noted that information is lacking describing respective heterogeneous reaction *** estimates of aerosolized smoke particle concentrations required to destroy CWA are made considering gas phase diffusion rates and reported values of the oxide capacity to decompose CWA or their surrogates.

关键词： Chemical weapon agents Prompt defeat metal combustion Heterogeneous reactions

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