Promotion of the HCHO oxidation over gold supported on Co-promoted ceria catalysts can be related to the higher concentration of oxygen vacancies and an improvement in the redox properties, which can contribute to the better activation of O 2 and an enhancement of the oxygen mobility. Furthermore, no marked changes were found in gold dispersion upon adding cobalt. Guillaume Rochard, directeur Stratgie, Partenariats et Fusions-acquisitions de Naval Group, rejoint le Comit excutif. Music relax by Guillaume Rochard published on new by Qasim Alam published on Mix by k I N G published on. X-ray photoelectron spectroscopy (XPS) characterization of the fresh catalysts indicated that the Au species were mainly in a slightly ionic δ + valence state, but did not exclude the possibility of metallic gold. Acute myeloid leukemia (AML) is an aggressive hematological malignancy with a globally poor outcome, especially in patients ineligible for intensive chemotherapy. Facebook gives people the power to share and makes the world more open and connected. Based on the HCHO amount (in μmol) converted into CO 2 per gram of gold per second after 40 h on stream, the 1.5Au/CeCo catalyst demonstrated the best activity (∼3.9) as compared to the other catalysts (≤2.0). Cell Painting for compounds clustering and Mechanism of Actions characterization. Join Facebook to connect with Rochard Guillaume and others you may know. Maud GABEREL Responsable Ressources Humaines chez Coopérative U ENSEIGNE. ![]() The 3 wt% Au catalysts demonstrated a higher HCHO conversion than their low-gold counterparts (1.5 wt% Au), a remarkable improvement in the HCHO conversion was observed using Co-promoted ceria (9 mol%). Guillaume Rochard’s Post Guillaume Rochard reposted this Report this post Report Report. All of the supported Au catalysts exhibited HCHO oxidation into CO 2 at 25 ☌ and demonstrated a great stability for the time on stream (40 h). University Lille, CNRS UMR 8181, UCCS-Unité de Catalyse et de Chimie du Solide, 59650 Villeneuve dAscq, France. The fresh supported Au catalysts were characterized using several techniques in order to investigate their morphological, structural and redox properties before being tested for formaldehyde (HCHO) total oxidation. Au catalysts with loadings of 1.5 and 3 wt% were dispersed over CeO 2 and Co (9 12 mol%) promoted CeO 2, using the deposition–precipitation method, followed by calcination at 350 ☌.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |