Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support; Processes; Vol. 8, iss. 9
| Parent link: | Processes Vol. 8, iss. 9.— 2020.— [1016, 17 p.] |
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| Körperschaft: | |
| Weitere Verfasser: | , , , , , , , , , |
| Zusammenfassung: | 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. |
| Sprache: | Englisch |
| Veröffentlicht: |
2020
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.3390/pr8020217 |
| Format: | MixedMaterials Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663826 |
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| 200 | 1 | |a Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support |f E. G. Pakrieva, E. N. Kolobova, D. Yu. German [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 47 tit.] | ||
| 330 | |a 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. | ||
| 338 | |b Российский фонд фундаментальных исследований |d 18-29-24037 | ||
| 461 | |t Processes | ||
| 463 | |t Vol. 8, iss. 9 |v [1016, 17 p.] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a gold catalysts | |
| 610 | 1 | |a glycerol oxidation | |
| 610 | 1 | |a catalyst selectivity | |
| 610 | 1 | |a glyceric acid | |
| 610 | 1 | |a tartronicacid | |
| 610 | 1 | |a base additives | |
| 610 | 1 | |a катализаторы | |
| 610 | 1 | |a окисление | |
| 610 | 1 | |a глицерин | |
| 610 | 1 | |a селективность | |
| 610 | 1 | |a кислоты | |
| 610 | 1 | |a добавки | |
| 610 | 1 | |a золото | |
| 701 | 1 | |a Pakrieva |b E. G. |c Chemical Engineer |c Engineer of Tomsk Polytechnic University |f 1989- |g Ekaterina Germanovna |3 (RuTPU)RU\TPU\pers\33273 |9 17018 | |
| 701 | 1 | |a Kolobova |b E. N. |c Chemical Engineer |c design engineer of Tomsk Polytechnic University |f 1989- |g Ekaterina Nikolaevna |3 (RuTPU)RU\TPU\pers\34488 |9 17871 | |
| 701 | 1 | |a German |b D. Yu. |c Chemical engineer |c Engineer of Tomsk Polytechnic University |f 1993- |g Dmitry Yuryevich |3 (RuTPU)RU\TPU\pers\42480 | |
| 701 | 1 | |a Stucchi |b M. |g Marta | |
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| 701 | 1 | |a Corberan |b V. C. |g Cortes | |
| 701 | 1 | |a Pestryakov |b A. N. |c Chemist |c Professor of Tomsk Polytechnic University, Doctor of Chemical Science |f 1963- |g Aleksey Nikolaevich |3 (RuTPU)RU\TPU\pers\30471 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
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