Potassium hydroxide Active site 1 Au nano rods 1 Capacitance 1 Carbon carbon composites 1 Catalysis 1 Catalysts 1 Chronoamperometry 1 Composite nanoparticles 1 Copper oxides 1 Core-shell composites 1 Cyclic voltammetry 1 Electric discharges 1 Electrochemical electrodes 1 Electrochemical impedance spectroscopy 1 Electrolytes 1 Electrolytic reduction 1 Energy storage applications 1 Foams 1 Gold compounds 1 Gold deposits 1 Gold nanoparticles 1 Half-wave potential 1 High resolution transmission electron microscopy 1 Iron compounds 1 Metal-oxide nanomaterial 1 Metalorganic frameworks (MOFs) 1 Methylimidazole 1 Morphology 1 Nanorods 1