Methane oxidation over supported Pd catalysts prepared by magnetron sputtering

While magnetron sputtering has been used to deposit metals onto a range of solid substrates, its application produce porous heterogeneous catalysts in powder form is relatively unstudied. Here, sputtered Pd catalyst powders were prepared using shaker operated at optimal experimental settings give uniform coverage the powders, and tested abatement exhaust emissions natural gas fuelled engines via oxidation methane. nanoparticles deposited alumina, titania zeolite supports, form. X-ray diffraction confirmed that characteristic structure each support was maintained following sputtering. The quantity increased (a) with deposition time (b) as function order alumina < titania. methane activity, measured temperatures which 10% 50% conversions observed, T10 T50, content for most active over despite greater amount present on Overall, findings demonstrate viable method prepare precious metal based powders. Furthermore, this rapid one-step process complete after 10–20 min avoids any salt impurities or need solvent required traditional synthesis methods.