Small or Sharp Edged? Impact of Facets-Controlled Ag{111} Nanoprism on the Gas Sensing Redox Characteristics of WO.

Recent reports that associate the redox characteristics of metal nanostructures (NSs) merely to their particle size are sceptical and need to examine the intrinsic property that dominates their redox properties. Aiming this, the gas sensing redox characteristics of (i) isotropic Ag nanospheres and (ii) the anisotropic Ag{111} nanoprism are examined by decorating them on the WO surface. As revealed by KPFM measurements, the low work function values of Ag{111} (i.