Metal-Organic Fireworks! MOFs as integrated structural scaffolds for pyrotechnic materials

Abstract

A new approach to formulating pyrotechnic materials is presented whereby constituent ingredients are bound together in a solid-state lattice in the form of a coordination polymer. This reduces the batch inconsistencies arising from the traditional approach of combining powders by ensuring the key ingredients are ‘mixed’ in stoichiometric quantities and are in intimate contact. Further benefits for the application of these types of material are increased safety levels as well as simpler logistics, storage and manufacture. A systematic series of new frameworks comprising fuel and oxidiser agents (group 1 and 2 metal nodes and terephthalic acid derivatives as linkers) has been synthesised and structurally characterised. These new materials have been assessed for pyrotechnic effect by calorimetry and burn tests. Results indicate that these materials exhibit the desired properties of a pyrotechnic material and that the effect can be correlated to the dimensionality of the structure.A new approach to formulating pyrotechnic materials is proposed whereby constituent ingredients are bound together in a solid-state lattice. A series of coordination polymers comprising fuel and oxidiser agents exhibits the desired properties of a pyrotechnic material and this effect is correlated to the dimensionality of the structure.

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ORCID for Simon Coles: orcid.org/0000-0001-8414-9272

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