Flower-like MoS-Induced α-FeO/Fe(MoO) Nanocomposite as an Ultrafast Sensor for Ethanol Detection.

An ultrafast-responsive α-FeO/Fe(MoO) nanocomposite was developed for the detection of ethanol vapor. The α-FeO/Fe(MoO) nanocomposite was synthesized utilizing a green, normal-pressure, microwave-assisted method followed by an in situ solid-state reaction process with flower-like MoS as a unique precursor. The resulting α-FeO/Fe(MoO) composite presents a porous, agminated petal-like structure with α-FeO nanoparticles homogeneously attached to the surfaces of Fe(MoO) nanosheets.