In this work, a gold nanodendrites-CuMgFe layered double hydroxide composite (AuNDs@LDH) was introduced as a bifunctional electrocatalyst for hydrogen and oxygen evolution reactions (HER and OER, respectively) in alkaline media.
Mg-Al-LDH@MgFe2O4 nanocomposite was synthesized and was applied to enhance efficiency of gold micron-dendrites/glassy carbon electrode (Mg-Al-LDH@MgFe2O4/AuNDs/GCE) for oxidation of ethanol. Based on the results, Mg-Al-LDH@MgFe2O4/AuNDs showed a current density of 29.4[Formula: see text]mA cm[Formula: see text], which was 1.6 times higher than that on the surface of AuNDs/GCE. Also, long-term stability of the studied electrode showed that the nanocomposite improves CO-poisoning tolerance of the AuNDs. Accordingly, the Mg-Al-LDH@MgFe2O4/AuNDs catalyst exhibits an excellent potential for application in alkaline ethanol fuel cells.
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