Electrocatalytic activity of Basolite (TM) F300 metal-organic-framework structures
Babu, K. F., Kulandainathan, M. A., Katsounaros, I., Rassaei, L., Burrows, A. D., Raithby, P. R. and Marken, F., 2010. Electrocatalytic activity of Basolite (TM) F300 metal-organic-framework structures. Electrochemistry Communications, 12 (5), pp. 632-635.
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For the case of the commercially available metal-organic framework (MOF) structure Basolite (TM) F300 or Fe (BTC) with BTC = benzene-1,3,5-tricarboxylate, it is shown that the Fe(III/II) electrochemistry is dominated by reductive dissolution rather than ion insertion (which in marked contrast is dominating the behaviour of Fe(III/I) open framework processes in Prussian blues). Solid Fe(BTC) immobilised onto graphite or platinum working electrodes is investigated and it is shown that well-defined and reversible Fe(III/II) reduction responses occur only on platinum and in the presence of aqueous acid. The process is shown to follow a CE-type mechanism involving liberation of Fe(III) in acidic media, in particular for high concentrations of acid. Effective electrocatalysis for the oxidation of hydroxide to O-2 (anodic water splitting) is observed in alkaline aqueous media after initial cycling of the potential into the reduction potential zone. A mechanism based on a MOF-surface confined hydrous iron oxide film is proposed.
|Creators||Babu, K. F., Kulandainathan, M. A., Katsounaros, I., Rassaei, L., Burrows, A. D., Raithby, P. R. and Marken, F.|
|Uncontrolled Keywords||sensor, prussian blue, water splitting, voltammetry, reductive dissolution, mof, host guest electrochemistry|
|Departments||Faculty of Science > Chemistry|
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