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 to produce porous heterogeneous catalysts in powder form is relatively unstudied. Here, magnetron sputtered Pd heterogeneous catalyst powders were prepared using a shaker operated at optimal...

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Bibliographic Details
Published in:Surface & coatings technology 2021-05, Vol.414, p.127123, Article 127123
Main Authors: Shaw, David, Kulczyk-Malecka, Justyna, Kelly, Peter J., Doyle, Aidan M.
Format: Article
Language:English
Subjects:
Aluminum oxide
Catalysts
Deposition
Dual-fuel
Exhaust emissions
Exhaust gases
Magnetron sputtering
Methane
Methane decomposition
Nanoparticles
Natural gas
Oxidation
Palladium
Pollution abatement
Substrates
Zeolite
Zeolites
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Summary:While magnetron sputtering has been used to deposit metals onto a range of solid substrates, its application to produce porous heterogeneous catalysts in powder form is relatively unstudied. Here, magnetron sputtered Pd heterogeneous catalyst powders were prepared using a shaker operated at optimal experimental settings to give uniform coverage of the powders, and tested in the abatement of exhaust emissions in natural gas fuelled engines via the oxidation of methane. Pd nanoparticles were deposited onto alumina, titania and zeolite supports, in powder form. X-ray diffraction confirmed that the characteristic structure of each support was maintained following sputtering. The quantity of Pd increased (a) with deposition time and (b) as a function of support in the order alumina 
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2021.127123