High Polarity Doping of CoFe Layered Hydroxides: Bifunctional and Corrosion‑Resistant Anion Exchange Membrane Seawater Electrolyzers (IMAGE)
Caption
- CoFe layered metal hydroxide (LMH) was synthesized via a MgO nanoparticle assisted method, fluorine (F) doping effectively modulated the electronic structure of CoFe LMH by selectively tuning Fe sites while preserving Co integrity, resulting in a high spin Fe configuration conducive to enhanced catalytic activity.
- F-CoFe LMH-8 as a bifunctional catalyst , exhibiting strong hydrophilic and oxophilic behavior while effectively repelling chloride ions (chlorophobic) in seawater conditions.
- F-CoFe LMH-8 (+||–) anion exchange membrane device delivered a current density of 1 A cm–2 at 2.3 V in seawater and maintained exceptional operational durability, exhibiting a degradation rate of only 0.15 μV h–1 over 500 h of continuous operation.
Credit
Anandhan Ayyappan Saj, Sampath Prabhakaran, Mohsin Rasool6, Kousik Bhunia, Dongho Lee, Hyunseok Ko, Tukaram D. Dongale8, Muthukumar Perumalsamy, Arul Saravanan Raaju Sundhar, Do Hwan Kim*, Sang Jae Kim*.
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CC BY-NC-ND