Preparation and characterization of metallic catalyst using wire arc spraying and its application in partial oxidation of methane

The catalyst activity over a series of new metallic catalysts prepared with wire arc spraying (WAS) method was investigated in catalytic partial oxidation of methane (CPOM) to syngas. Comparing with the conventional Ni-based catalyst, the prepared WAS catalysts exhibited significant activity in CPOM. At 850 °C, CH4 conversion and CO selectivity for the best prepared catalyst were 48.0 and 75.2, respectively. Also, characterization of the WAS catalysts by BET isotherm, XRD and SEM showed that the excellent catalytic performance of the WAS catalysts is related to the high atomizing air pressure and particle cooling rate during the preparation process.