Single Crystalline Ultrathin Nickel?￠????Cobalt Alloy Nanosheets Array for Direct Hydrazine Fuel Cells

摘要

Abstract Ultrathin 2D metal alloy nanomaterials have great potential applications but their controlled syntheses are limited to few noble metal based systems. Herein Ni x Co 1?￠???? x alloy nanosheets with ultrathin (sub-3 nm) single-crystalline 2D structure are synthesized through a topochemical reduction method. Moreover, the optimized composition Ni 0.6 Co 0.4 alloy nanosheets array exhibits excellent performances for hydrazine oxidation reaction and direct hydrazine fuel cells.