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The particle size effect of Pd nanoparticles supported on alumina with various crystalline phases on methane combustion was investigated. Pd/θ, α‐Al2O3 with weak metal‐support interaction showed a volcano‐shaped dependence of the catalytic activity on the size of Pd particles, and the catalytic activity of the strongly interacted Pd/γ‐Al2O3 increased with the particle size. Based on a structural analysis...
Farbecht: Pigmente mit verschiedenen winkelunabhängigen Farben wurden mit einer außergewöhnlich einfachen Sprühmethode hergestellt (siehe Bild). Die Methode basiert auf der Nutzung von Submikrometer‐großen SiO2‐Partikeln und Industrieruß. Ein Polyelektrolyt, das an den Partikeln haftet, kann die Struktur der kolloidalen amorphen Anordnung stabilisieren und damit hochbelastbare, farbechte Pigmente...
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