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Ferrocene and Cobaltocene Derivatives for Non‐Aqueous Redox Flow Batteries
Author(s) -
Hwang Byunghyun,
Park MinSik,
Kim Ketack
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201403021
Subject(s) - cobaltocene , ferrocene , chemistry , redox , vanadium , aqueous solution , inorganic chemistry , half reaction , organic chemistry , electrochemistry , electrode
Ferrocene and cobaltocene and their derivatives are studied as new redox materials for redox flow cells. Their high reaction rates and moderate solubility are attractive properties for their use as active materials. The cyclability experiments are carried out in a static cell; the results showed that these materials exhibit stable capacity retention and predictable discharge potentials, which agree with the potential values from the cyclic voltammograms. The diffusion coefficients of these materials are 2 to 7 times higher than those of other non‐aqueous materials such as vanadium acetylacetonate, iron tris(2,2′‐bipyridine) complexes, and an organic benzene derivative.