Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support; Processes; Vol. 8, iss. 9

Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support; Processes; Vol. 8, iss. 9

Detaylı Bibliyografya
Parent link:	Processes Vol. 8, iss. 9.— 2020.— [1016, 17 p.]
Müşterek Yazar:	Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Diğer Yazarlar:	Pakrieva E. G. Ekaterina Germanovna, Kolobova E. N. Ekaterina Nikolaevna, German D. Yu. Dmitry Yuryevich, Stucchi M. Marta, Villa A. Alberto, Prati L. Laura, Carabineiro S. A. C. Sonia Alexandra Correia, Bogdanchikova N. Nina, Corberan V. C. Cortes, Pestryakov A. N. Aleksey Nikolaevich
Özet:	Title screen Gold nanoparticles supported on various oxides (CeO2, CeO2/TiO2, MgO, MgO/TiO2, La2O3, La2O3/TiO2) (with 4 wt.% Au loading) were investigated in the liquid (aqueous) phase oxidation of glycerol by molecular oxygen under mild conditions, in the presence of alkaline earth (CaO, SrO and MgO) or alkaline (NaOH) bases. Full conversion and selectivity between 38 and 68% to sodium glycerate were observed on different Au supported catalysts (Au/MgO/TiO2, Au/La2O3/TiO2, Au/CeO2 and Au/CeO2/TiO2). The combined effect of Au particle size and basicity of the support was suggested as the determining factor of the activity. Agglomeration of gold nanoparticles, found after the reaction, led to the deactivation of the catalysts, which prevents the further oxidation of sodium glycerate into sodium tartronate. Promising results were obtained with the use of alkaline earth bases (CaO, SrO, MgO), leading to the formation of free carboxylic acids instead of salts, which are formed in the presence of the more usual base, NaOH.
Dil:	İngilizce
Baskı/Yayın Bilgisi:	2020
Konular:	электронный ресурс труды учёных ТПУ gold catalysts glycerol oxidation catalyst selectivity glyceric acid tartronicacid base additives катализаторы окисление глицерин селективность кислоты добавки золото
Online Erişim:	https://doi.org/10.3390/pr8020217
Materyal Türü:	MixedMaterials Elektronik Kitap Bölümü
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663826

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