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Electrochemical Storage: Catechol‐Mediated Reversible Binding of Multivalent Cations in Eumelanin Half‐Cells (Adv. Mater. 38/2014)
Author(s) -
Kim Young Jo,
Wu Wei,
Chun SangEun,
Whitacre Jay F.,
Bettinger Christopher J.
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201470258
Subject(s) - catechol , electrochemistry , materials science , redox , homogeneous , melanin , magnesium , polymer , chemical engineering , combinatorial chemistry , inorganic chemistry , organic chemistry , electrode , chemistry , biochemistry , physics , engineering , metallurgy , composite material , thermodynamics
Biologically derived polymers from the cuttlefish can be leveraged as sustainable energy‐storage materials. Melanin pigments exhibit redox‐active chemistries and homogeneous nanostructured particles. Catechols can be oxidized into ortho‐quinones and reversibly bind magnesium cations with differential affinity as described by J. F. Whitacre, C. J. Bettinger, and co‐workers on page 6572. These properties of melanin biopolymers are advantageous for the potential use as cathodes in rechargeable magnesium ion batteries with high cycle stability. Photo credit: Brent Polishak.