Electrocatalytic O2 reduction by a monolayer of hemin: the role of pKa of distal and proximal oxygen of a FeIII–OOH species in determining reactivity

Sohini Mukherjee; Sabyasachi Bandyopadhyay; Sudipta Chatterjee; Abhishek Dey

doi:10.1039/C4CC03886J

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Electrocatalytic O₂ reduction by a monolayer of hemin: the role of pK_a of distal and proximal oxygen of a Fe^III–OOH species in determining reactivity†

Sohini Mukherjee,^a Sabyasachi Bandyopadhyay,^a Sudipta Chatterjee^a and Abhishek Dey*^a

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* Corresponding authors

^a Indian Association for the Cultivation of Science, Department of Inorganic Chemistry, 2A & 2B Raja S.C Mullick Road, Jadavpur, Kolkata, India
E-mail: icad@iacs.res.in
Tel: +91-33-2473 4971-1366

Abstract

Investigation of the proton coupled electron transfer steps involved in electrocatalytic ORR by hemin modified electrodes allows the determination of pK_as of the proximal and distal oxygen atoms of a rate determining Fe^III–OOH species.

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Article information

DOI: https://doi.org/10.1039/C4CC03886J
Article type: Communication
Submitted: 23 May 2014
Accepted: 10 Aug 2014
First published: 22 Aug 2014

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Chem. Commun., 2014,50, 12304-12307

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Electrocatalytic O₂ reduction by a monolayer of hemin: the role of pK_a of distal and proximal oxygen of a Fe^III–OOH species in determining reactivity

S. Mukherjee, S. Bandyopadhyay, S. Chatterjee and A. Dey, Chem. Commun., 2014, 50, 12304 DOI: 10.1039/C4CC03886J

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