Nanostructure Formation of Platinum (Pt) Clusters on K-OMS-2 Manganese Oxide Paper by Reactive Spray Deposition Technique (RSDT) - CO Oxidation and Conductivity Measurements

摘要

Nano-cluster formation of Platinum (Pt) on a modified K-OMS-2 manganese oxide inorganic paper by reactive spray deposition technology (RSDT) is presented. RSDT was employed to produce a film of controllable thickness on the inorganic K-OMS-2 paper material. The resultant Pt/K-OMS-2 composite material was fully characterized by X- ray diffraction (XRD), scanning electron microscopy, X-ray energy dispersive spectroscopy (EDX), transmission electron microscopy (TEM), X-ray 3D micro-tomography, and high temperature scanning electron microscopy (HTSEM). The nondestructive characterization technique (X-ray tomography) resolved the coating layer and the nature of the K-OMS-2 inorganic modified paper; layers of K-OMS-2 fibers superimposed to form a stack. The nanostructured coating on the inorganic paper type material is evaluated for carbon monoxide (CO) oxidation and conductivity measurements. Carbon monoxide (CO) oxidation with the Pt/K-OMS-2 modified inorganic paper presented 100 % conversion to CO_2 at temperatures as low as 200°C. A simple, fast, and new deposition technique has been employed for the formation of highly homogeneous coating of Pt on an inorganic K-OMS-2 modified paper.