US EPA

3702777 

Journal Article 

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

Garces, HF; Roller, J; King'ondu, CK; Dhamarathna, S; Marik, R; Suib, SL 

2012 

671-674 

WOS:000391247800177 

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 non-destructive 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 CO2 at temperatures as low as 200 degrees 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. 

X-ray tomography; Manganese Oxide; K-OMS-2 Paper; Reactive Spray Deposition Technique (RSDT); Films Deposition