ArticleChemistry of materials : a publication of the American Chemical Society2025
Local Structure and Surface Acidity of Overlayers Prepared by Atomic Layer Deposition of Silica on Alumina.
Article in Chemistry of materials : a publication of the American Chemical Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Understanding the structure of the silica-alumina interface and the reactivity of such interfacial sites in amorphous aluminosilicate (ASA) materials is essential due to their industrial utilization as solid acid catalysts. Here, we link the structure of silica layers grown on alumina by atomic layer deposition (ALD) to the acidic and catalytic properties of ASA. In particular, we study the local structure of silica overlayers as a function of the number of ALD cycles applied and reveal how the coordination environment of Al and Si sites governs the Lewis and Bro̷nsted acidity and catalytic activity using methanol dehydration as a model structure-sensitive reaction. Relying on advanced solid-state NMR characterization, including
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