Linked Picolinamide Nickel Complexes as Redox Carriers for Nonaqueous Flow Batteries

The use of nickel complexes utilizing non‐innocent ligands based on picolinamide to function as redox carriers in flow batteries was explored. The picolinamide moiety was linked together with −CH2CH2− (bpen), −CH2CH2CH2− (bppn), and −C6H4− (bpb) moieties, resulting in two, three, and four quasi‐reve...

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Bibliographic Details
Published in:ChemSusChem 2019-04, Vol.12 (7), p.1304-1309
Main Authors: Chu, Terry, Popov, Ivan A., Andrade, Gabriel A., Maurya, Sandip, Yang, Ping, Batista, Enrique R., Scott, Brian L., Mukundan, Rangachary, Davis, Benjamin L.
Format: Article
Language:English
Subjects:
batteries
Coordination compounds
Current carriers
Energy Sciences
ENERGY STORAGE
Nickel
nonaqueous
Rechargeable batteries
redox flow battery
redox potentials
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Summary:The use of nickel complexes utilizing non‐innocent ligands based on picolinamide to function as redox carriers in flow batteries was explored. The picolinamide moiety was linked together with −CH2CH2− (bpen), −CH2CH2CH2− (bppn), and −C6H4− (bpb) moieties, resulting in two, three, and four quasi‐reversible waves, respectively, for the nickel complexes and >3 V difference between the outermost positive and negative waves. The redox events were theoretically modelled for each complex, showing excellent agreement (
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201802985