ORCID Profile
0000-0002-8324-0119
Current Organisation
Centre National de la Recherche Scientifique
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Publisher: American Chemical Society (ACS)
Date: 27-08-2019
DOI: 10.1021/JACS.9B06824
Abstract: We report here, and rationalize, a synergistic effect between a non-noble metal oxide catalyst (CuO) and high-frequency ultrasound (HFUS) on glucose oxidation. While CuO and HFUS are able to independently oxidize glucose to gluconic acid, the combination of CuO with HFUS led to a dramatic change of the reaction selectivity, with glucuronic acid being formed as the major product. By means of density functional theory (DFT) calculations, we show that, under ultrasonic irradiation of water at 550 kHz, the surface lattice oxygen of a CuO catalyst traps H· radicals stemming from the sonolysis of water, making the ring-opening of glucose energetically unfavorable and leaving a high coverage of ·OH radical on the CuO surface, which selectively oxidizes glucose to glucuronic acid. This work also points toward a path to optimize the size of the catalyst particle for an ultrasonic frequency that minimizes the damage to the catalyst, resulting in its successful reuse.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2GC00433J
Abstract: We demonstrate a catalytic base-free strategy for the selective oxidation of microcrystalline cellulose to oxalic acid (OA) by combining low frequency ultrasound as an unconventional activation technique and Au/Fe 2 O 3 as a catalyst.
Publisher: American Chemical Society (ACS)
Date: 24-12-2018
Publisher: American Chemical Society (ACS)
Date: 11-12-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8GC00961A
Abstract: Glycerol was oxidized selectively to oxalic and tartronic acids in 78% yield over a highly crystalline CuO catalyst prepared within a few minutes by a sonochemical synthesis.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9GC03803E
Abstract: A novel Pd-based catalyst hosted over a nitrogen enriched fibrous porous-organic-polymer with a high density of step sites and exhibits versatile catalytic performance over different types of vegetable oils to furnish long chain diesel-range alkanes.
Publisher: American Chemical Society (ACS)
Date: 12-09-2018
No related grants have been discovered for Francois Jerome.