Projects per year
Metal-organic framework (MOF) materials based on zinc(II) and aluminium(III) dicarboxylate frameworks with covalently attached ferrocene functional redox groups were synthesised by post-synthetic modification and investigated by voltammetry in aqueous and non-aqueous media. In the voltammetry experiments, ferrocene oxidation occurs in all cases, but chemically reversible and stable ferrocene oxidation without decay of the voltammetric response requires a "mild" dichloroethane solvent environment. The voltammetric response in this case is identified as "surface-confined" with fast surface-hopping of electrons and without affecting the bulk of MOF microcrystals. In aqueous media a more complex pH-dependent multi-stage redox process is observed associated with chemically irreversible bulk oxidation and disintegration of the MOF framework. A characteristic 30 mV per pH unit dependence of redox potentials is observed attributed to a "framework effect": the hydroxide-driven MOF framework dissolution.
|Number of pages||6|
|Publication status||Published - 2012|
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- 1 Finished
Nano-Integration of Metal-Organic Frameworks and Catalysis for the Uptake and Utilisation of CO2
Marken, F., Burrows, A., Cameron, P., Edler, K., Hammond, G., Jones, M., Mattia, D., McManus, M., Pascu, S., Plucinski, P. & Raithby, P.
Engineering and Physical Sciences Research Council
1/05/10 → 14/02/14
Project: Research council