Synthesis, Acid Properties and Catalysis by Niobium Oxide Nanostructured Materials

• DOI: 10.32920/26018233.v1
• Publication Date: 2024-06-13T16:23:32Z
• Authors: M. Luisa Marín; Geniece L. Hallet...; Stefania Impelliz...; Chiara Fasciani; Sabrina Simoncelli; José Carlos Nett...; Juan C. Scaiano
• Keywords: Niobium oxide; Reactivity

<p>Several forms of niobium oxide were prepared, including nanostructured mesoporous materials, and their acidity properties comprehensively investigated compared with commercially available materials. The composites characterized by a variety techniques, XRD, TEM, N2 adsorption Hammett acid indicator studies. the derivatives was also ability materials to successfully promote halochromic ring-opening an oxazine-coumarin probe that specifically designed for use in fluorescence imaging reaction easily monitored using UV-visible, NMR spectroscopy. Single molecule microscopy employed gain more in-depth understanding catalysis pathway. Using this technique, rate mediated protonation estimated be 1.8 × 10−13 mol m−2 s−1. analysis used obtain detailed map Brønsted sites on surface. active sites, located multiple blinking events, do not seem localized any area material, but rather randomly distributed throughout solid state As proceeds, highest accessibility are gradually consumed, making next tier reaction. phenomenon closely time lapsed reactivity maps.</p>