RU2006109035A - Наномерные золотые катализаторы, активирующие агенты, вспомогательные агенты, и взаимосвязанные методологии, пригодные для создания таких систем катализаторов, особенно когда золото нанесено на вспомогательные агенты с использованием физического осаждения из паровой среды - Google Patents

Наномерные золотые катализаторы, активирующие агенты, вспомогательные агенты, и взаимосвязанные методологии, пригодные для создания таких систем катализаторов, особенно когда золото нанесено на вспомогательные агенты с использованием физического осаждения из паровой среды Download PDF

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RU2006109035A
RU2006109035A RU2006109035/04A RU2006109035A RU2006109035A RU 2006109035 A RU2006109035 A RU 2006109035A RU 2006109035/04 A RU2006109035/04 A RU 2006109035/04A RU 2006109035 A RU2006109035 A RU 2006109035A RU 2006109035 A RU2006109035 A RU 2006109035A
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carrier
catalytically active
catalytic system
particles
heterogeneous catalytic
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RU2006109035/04A
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RU2359754C2 (ru
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Ларри А. БРЕЙ (US)
Ларри А. БРЕЙ
Томас Е. ВУД (US)
Томас Е. ВУД
Джина М. БУККЕЛЛАТО (US)
Джина М. БУККЕЛЛАТО
Марвин Е. ДЖОУНС (US)
Марвин Е. ДЖОУНС
Крэйг С. ЧЕМБЕРЛЕЙН (US)
Крэйг С. ЧЕМБЕРЛЕЙН
Аллен Р. СИДЛ (US)
Аллен Р. СИДЛ
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ЗМ Инновейтив Пропертиз Компани (US)
Зм Инновейтив Пропертиз Компани
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Claims (21)

1. Способ изготовления гетерогенной каталитической системы, включающий конденсацию из паровой фазы каталитически активных кластеров золота, имеющих размер в пределах от 0,5 до 50 нм, на нанопористый носитель.
2. Способ по п.1, отличающийся тем, что указанный носитель содержит активированный уголь.
3. Способ по п.1, отличающийся тем, что указанный носитель содержит оксид алюминия.
4. Способ по п.1, отличающийся тем, что далее включает стадию пропитки указанного носителя водорастворимой солью, причем указанная пропитка производится перед осаждением золота.
5. Способ по п.1, отличающийся тем, что далее включает стадию пропитки указанного носителя активирующим агентом, причем указанная пропитка производится перед осаждением золота.
6. Способ по п.4, отличающийся тем, что далее включает стадию термической обработки указанного пропитанного носителя при температуре, превышающей примерно 200°С, причем указанная термическая обработка производится перед осаждением золота.
7. Способ по п.4, отличающийся тем, что указанная водорастворимая соль содержит соль щелочного металла.
8. Способ по п.4, отличающийся тем, что указанная водорастворимая соль содержит карбонат калия.
9. Способ по п.1, отличающийся тем, что общая толщина каталитически активного золота, осажденного на нанопористом носителе, равняется менее чем 50 нм.
10. Гетерогенная каталитическая система, содержащая
a) нанопористый носитель;
b) по меньшей мере одну водорастворимую соль, импрегнированную в указанный носитель; и
c) кластеры каталитически активного золота, имеющие размеры в интервале от 0,5 до 50 нм, осажденные на указанном носителе с Показателем Глубины Проникновения в интервале от примерно 1·10-9 до примерно 0,1.
11. Гетерогенная каталитическая система по п.10, отличающаяся тем, что общая толщина каталитически активного золота, осажденного на нанопористом носителе, равняется менее чем 50 нм.
12. Способ изготовления каталитической системы, включающий следующие этапы:
(a) импрегнирование водорастворимой соли в нанопористый носитель катализатора;
(b) термическую обработку указанного импрегнированного носителя при температуре, превышающей приблизительно 200°С; и
(с) конденсацию из паровой фазы каталитически активных кластеров золота, имеющих размер в пределах от 0,5 до 50 нм, на указанный термически обработанный нанопористый носитель.
13. Гетерогенная каталитическая система, содержащая
a) нанопористый носитель;
b) соль щелочного металла, импрегнированную в указанный носитель; и
c) каталитически активное золото, осажденное на указанный носитель способом конденсации из газовой фазы.
14. Система защиты органов дыхания, включающая гетерогенную каталитическую систему согласно пп.10-11 или 13.
15. Способ изготовления гетерогенной каталитической системы, включающий следующие этапы:
a) объединение множества относительно мелких частиц и множества относительно крупных частиц во множество нанопористых композитных частиц; и
b) осаждение кластеров каталитически активного золота, имеющих размеры в интервале от 0,5 до 50 нм каталитически активного золота на указанные композитные частицы способом конденсации из паровой фазы.
16. Гетерогенная каталитическая система, содержащая множество композитных, каталитически активных частиц, отличающаяся тем, что указанные каталитически активные частицы получены из компонентов, содержащих относительно мелкие частицы и относительно крупные частицы, причем указанные композитные частицы содержат каталитически активное золото, осажденное на относительно мелких частицах с использованием способа конденсации из паровой фазы.
17. Гетерогенная каталитическая система по п.16, отличающаяся тем, что указанные относительно мелкие частицы содержат оксид титана.
18. Гетерогенная каталитическая система по п.16, отличающаяся тем, что указанные композитные частицы содержат частицы оксида алюминия, покрытые оксидом титана.
19. Гетерогенная каталитическая система по п.16, отличающаяся тем, что указанные компоненты далее содержат соль щелочного металла.
20. Гетерогенная каталитическая система по п.19, отличающаяся тем, что указанная соль щелочного металла содержит карбонат калия.
21. Система защиты органов дыхания, включающая гетерогенную каталитическую систему согласно любому из предыдущих пунктов.
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