Once breakthrough studies have been made to establish standard experimental techniques for studying the charging mechanisms of MOFs, they may then be routinely employed to determine how the chemical structure of the MOF impacts the charging mechanisms. However, whilst the structures of MOFs are more tuneable than porous carbons, the compounds must be well-characterised to probe the influence of defects, and changing the MOF structure is likely to have impacts on its suitability for a given technique. For example, in NMR spectroscopy, a change in functional group could change the spectral resolution of chemical environments significantly, whilst a change in the oxidation state may lead to a paramagnetic MOF which will be more challenging to study with NMR. This emphasises the need for a plurality of experimental techniques, especially those which are not well-established for earlier studies of carbon-based EDLCs, such as EPR and XANES.