Redox non-innocent bis(2,6-diimine-pyridine) ligand–iron complexes as anolytes for flow battery applications

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herbert_david MS-013 2017.pdf(1.26 MB)
Date
2017-11-13
Authors
Duarte, Gabriel
Braun, Jason
Giesbrecht, Patrick
Herbert, David E
Journal Title
Journal ISSN
Volume Title
Publisher
Royal Society of Chemistry
Abstract
Diiminepyridines are a well-known class of “non-innocent” ligands that confer additional redox activity to coordination complexes beyond metal-centred oxidation/reduction. Here, we demonstrate that metal coordination complexes (MCCs) of diiminepyridine (DIP) ligands with iron are suitable anolytes for redox-flow battery applications, with enhanced capacitance and stability compared with bipyridine analogs, and access to storage of up to 1.6 electron equivalents. Substitution of the ligand is shown to be a key factor in the cycling stability and performance of MCCs based on DIP ligands, opening the door to further optimization.
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Keywords
flow battery anolytes, Coordination Chemistry
Citation
Dalton Transactions, 2017, 46, 16439-16445
URI
http://hdl.handle.net/1993/36050
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