Gutsche, Christian
[Verfasser:in];
Berling, S.
[Verfasser:in];
Plaggenborg, Thorsten
[Verfasser:in];
Parisi, Jürgen
[Verfasser:in];
Knipper, Martin
[Verfasser:in]
Proof of Concept of an Iron-Iron(III)oxide hydroxide Battery Working at Neutral pH
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Medientyp:
E-Artikel
Titel:
Proof of Concept of an Iron-Iron(III)oxide hydroxide Battery Working at Neutral pH
Beteiligte:
Gutsche, Christian
[Verfasser:in];
Berling, S.
[Verfasser:in];
Plaggenborg, Thorsten
[Verfasser:in];
Parisi, Jürgen
[Verfasser:in];
Knipper, Martin
[Verfasser:in]
Erschienen:
Carl von Ossietzky Universität Oldenburg: /oops/ - Oldenburger Online-Publikations-Server, 2019-01-05
Anmerkungen:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Beschreibung:
An iron-iron(III)oxide hydroxide battery working in a neutral pH range is introduced. It employs electrochemical deposition of metallic Fe at the negative electrode and FeIIIOOH at the positive electrode during charge and dissolution of both during discharge in an aqueous FeII electrolyte. The working principle was validated with cyclic voltammetry, charge-discharge cycles, weighing, profilometry, X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray analysis. The coulombic efficiency over seven cycles is (49 ± 5) %, while it is (40 ± 2) % for the voltaic efficiency and (20 ± 1) % for the overall efficiency using current densities for charging and discharging of 1.2 mA cm-2 and 0.4 mA cm-2 at the negative electrode and 24 μA cm-2 and 8 μA cm-2 at the positive electrode.