Selective oxidation of n-octanol on unmodified and La-modified nanogold catalysts: Effect of metal content; Catalysis Today; Vol. 333
| Parent link: | Catalysis Today.— , 1987- Vol. 333.— 2019.— [P. 127-132] |
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| 団体著者: | |
| その他の著者: | , , , , , , |
| 要約: | Title screen We investigated the influence of metal loading in gold catalysts supported on titania, either unmodified or La-modified, on their catalytic performance and the formation of active sites for selective oxidation of n-octanol under mild conditions. Catalysts were characterized by BET, EDX, ICP, HRTEM, FTIR CO and XPS. Gold content had a significant effect on the catalytic properties of unmodified catalysts: activity of Au/TiO2 increased by increasing the metal load. However, in the case of a lanthanum-modified support samples, an increase of gold content from 0.5 to 4?wt.% had no effect on its activity (ca. 40% conversion after 6?h for all catalysts). This catalytic behavior is due to a change in the surface concentration of Au+ ions. For the unmodified catalysts, the surface concentration of Au+ ions increased with increasing gold loading, and, as a consequence, a significant increase in activity was observed. For La-modified catalysts, the surface concentration of Au+ ions is almost the same for all gold concentrations; as a result, no increase in activity was observed with the increase in gold content. It points to Au+ ions as the most probable active sites for the studied reaction. Режим доступа: по договору с организацией-держателем ресурса |
| 言語: | 英語 |
| 出版事項: |
2019
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1016/j.cattod.2018.04.046 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664474 |
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| 200 | 1 | |a Selective oxidation of n-octanol on unmodified and La-modified nanogold catalysts: Effect of metal content |f E. N. Kolobova, E. G. Pakrieva, L. Pascual [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 28 tit.] | ||
| 330 | |a We investigated the influence of metal loading in gold catalysts supported on titania, either unmodified or La-modified, on their catalytic performance and the formation of active sites for selective oxidation of n-octanol under mild conditions. Catalysts were characterized by BET, EDX, ICP, HRTEM, FTIR CO and XPS. Gold content had a significant effect on the catalytic properties of unmodified catalysts: activity of Au/TiO2 increased by increasing the metal load. However, in the case of a lanthanum-modified support samples, an increase of gold content from 0.5 to 4?wt.% had no effect on its activity (ca. 40% conversion after 6?h for all catalysts). This catalytic behavior is due to a change in the surface concentration of Au+ ions. For the unmodified catalysts, the surface concentration of Au+ ions increased with increasing gold loading, and, as a consequence, a significant increase in activity was observed. For La-modified catalysts, the surface concentration of Au+ ions is almost the same for all gold concentrations; as a result, no increase in activity was observed with the increase in gold content. It points to Au+ ions as the most probable active sites for the studied reaction. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Catalysis Today |d 1987- | ||
| 463 | |t Vol. 333 |v [P. 127-132] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a n-Octanol selective oxidation | |
| 610 | 1 | |a gold catalysts | |
| 610 | 1 | |a active sites | |
| 610 | 1 | |a modifiers | |
| 610 | 1 | |a effect of metal loading | |
| 610 | 1 | |a селективное окисление | |
| 610 | 1 | |a катализаторы | |
| 610 | 1 | |a модификаторы | |
| 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 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 Pascual |b L. | |
| 701 | 1 | |a Corberan |b V. C. | |
| 701 | 1 | |a Bogdanchikova |b N. |g Nina | |
| 701 | 1 | |a Farias |b M. H. |g Mario | |
| 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 |9 14796 | |
| 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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