02288nas a2200325   4500008004100000022001400041245012100055210006900176260000900245300001600254490000600270520118200276653002401458653002801482653001901510653002101529653002801550653002201578653003701600100002201637700002601659700001601685700002401701700002401725700002001749700002801769700001901797700002401816856012201840       2020                        eng d  a2168-048500aBoron nitride and oxide supported on dendritic fibrous nanosilica for catalytic oxidative dehydrogenation of propane0 aBoron nitride and oxide supported on dendritic fibrous nanosilic  cNOV   a16124-161350 v83 a<p>In this work, we were able to significantly increase the activity of boron nitride (BN) catalysts used for the oxidative dehydrogenation (ODH) of propane by designing and synthesizing BN supported on dendritic fibrous nanosilica (DFNS). DFNS/BN showed a markedly increased catalytic efficiency, accompanied by exceptional stability and selectivity. Textural characterization, together with solid-state nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopic analyses, indicates the presence of a combination of unique fibrous morphology of DFNS and various boron sites connected to silica to be the reason for this increase in the catalytic performance. Notably, DFNS/B2O3 also showed catalytic activity, although with more moderate selectivity compared to that of DFNS/BN. Solid-state NMR spectra indicate that the higher selectivity of DFNS/BN might stem from a larger amount of hydrogen-bonded hydroxyl groups attached to B atoms. This study indicates that both boron nitride and oxide are active catalysts and by using high surface area support (DFNS), conversion from propane to propene as well as productivity of olefins was significantly increased.</p>10aElectron microscopy10aheterogeneous catalysis10aNanostructures10aNMR spectroscopy10apropane dehydrogenation10aX-ray diffraction10aX-ray photoelectron spectroscopy1 aBelgamwar, Rajesh1 aRankin, Andrew, G. M.1 aMaity, Ayan1 aMishra, Amit, Kumar1 aGomez, Jennifer, S.1 aTrebosc, Julien1 aVinod, Chathakudath, P.1 aLafon, Olivier1 aPolshettiwar, Vivek  uhttps://library.ncl.res.in/content/boron-nitride-and-oxide-supported-dendritic-fibrous-nanosilica-catalytic-oxidative