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  • Title: Nickel-Iron Layered Double Hydroxide Dispersions in Ethanol Stabilized by Acetate Anions.
    Author: Piccinni M, Bellani S, Bianca G, Bonaccorso F.
    Journal: Inorg Chem; 2022 Mar 21; 61(11):4598-4608. PubMed ID: 35254806.
    Abstract:
    This work reports a method to obtain stable dispersions of nickel-iron layered double hydroxide (NiFe-LDH) nanosheets in ethanol by exposing the as-synthetized bulk NiFe-LDH to a sodium acetate solution or by adding acetate and citrate anions inside the reaction mixture. In the case of citrate-containing NiFe-LDH, the formation of single-layer nanosheets is confirmed by X-ray diffraction and atomic force microscopy measurements. Lastly, the effect of acetate ions on the electrocatalytic activity of NiFe-LDH is discussed for the oxygen evolution reaction. Our results provide useful information to improve the existing LDH exfoliation routes based on the use of green solvent alternatives to the mostly used formamide.
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