Evaluation of two- and three-dimensional electrode platforms for the electrochemical characterization of organometallic catalysts incorporated in non-conducting metal–organic frameworks

Mijangos, Edgar, Roy, Souvik, Pullen, Sonja , Lomoth, Reiner and Ott, Sascha (2017) Evaluation of two- and three-dimensional electrode platforms for the electrochemical characterization of organometallic catalysts incorporated in non-conducting metal–organic frameworks. Dalton Transactions, 46 (15). pp. 4907-4911. ISSN 1477-9226

Full content URL: https://doi.org/10.1039/C7DT00578D

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Item Type:Article
Item Status:Live Archive

Abstract

The development of a reliable platform for the electrochemical characterization of a redox-active molecular diiron complex, [FeFe], immobilized in a non-conducting metal organic framework (MOF), UiO-66, based on glassy-carbon electrodes is reported. Voltammetric data with appreciable current responses can be obtained by the use of multiwalled carbon nanotubes (MWCNT) or mesoporous carbon (CB) additives that function as conductive scaffolds to interface the MOF crystals in “three-dimensional” electrodes. In the investigated UiO-66-[FeFe] sample, the low abundance of [FeFe] in the MOF and the intrinsic insulating properties of UiO-66 prevent charge transport through the framework, and consequently, only [FeFe] units that are in direct physical contact with the electrode material are electrochemically addressable.

Keywords:Organometallic catalysts, Redox reactions, Diiron, Multiwalled carbon nanotubes (MWCNT), Mesoporous carbon (CB)
Subjects:F Physical Sciences > F100 Chemistry
F Physical Sciences > F161 Organometallic Chemistry
Divisions:College of Science > School of Chemistry
ID Code:40672
Deposited On:17 Apr 2020 09:29

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