RU2359754C2 - Наномерные золотые катализаторы, активаторы, твердые носители и соответствующие методики, применяемые для изготовления таких каталитических систем, особенно при осаждении золота на твердый носитель с использованием конденсации из паровой фазы - Google Patents
Наномерные золотые катализаторы, активаторы, твердые носители и соответствующие методики, применяемые для изготовления таких каталитических систем, особенно при осаждении золота на твердый носитель с использованием конденсации из паровой фазы Download PDFInfo
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- 230000003197 catalytic effect Effects 0.000 title claims abstract 19
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract 15
- 239000010931 gold Substances 0.000 title claims abstract 15
- 229910052737 gold Inorganic materials 0.000 title claims abstract 15
- 238000000034 method Methods 0.000 title claims abstract 13
- 238000009833 condensation Methods 0.000 title claims abstract 11
- 230000005494 condensation Effects 0.000 title claims abstract 11
- 239000003054 catalyst Substances 0.000 title claims abstract 3
- 238000001556 precipitation Methods 0.000 title abstract 3
- 239000000969 carrier Substances 0.000 title 2
- 239000007787 solid Substances 0.000 title 2
- 239000012190 activator Substances 0.000 title 1
- 239000002245 particle Substances 0.000 claims abstract 14
- 239000011246 composite particle Substances 0.000 claims abstract 7
- 150000002343 gold Chemical class 0.000 claims abstract 7
- 150000003839 salts Chemical class 0.000 claims abstract 7
- 238000005470 impregnation Methods 0.000 claims abstract 3
- 239000002131 composite material Substances 0.000 claims abstract 2
- 230000035515 penetration Effects 0.000 claims abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 4
- -1 alkali metal salt Chemical class 0.000 claims 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims 4
- 239000012808 vapor phase Substances 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 claims 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 2
- 239000010419 fine particle Substances 0.000 claims 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 2
- 230000000241 respiratory effect Effects 0.000 claims 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002638 heterogeneous catalyst Substances 0.000 claims 1
- 210000000056 organ Anatomy 0.000 abstract 2
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 2
- 238000004220 aggregation Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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Abstract
Изобретение относится к каталитическим системам на основе золота, использованию способов конденсации из паровой фазы для осаждения золота с наноразмерами на активированный носитель, системе защиты органов дыхания с использованием упомянутых выше каталитических систем. Описан способ изготовления гетерогенной каталитической системы: 1) включающий конденсацию из паровой фазы каталитически активных кластеров золота, имеющих размер в пределах от 0.5 нм до 50 нм, на нанопористый носитель; 2) включающий следующие этапы: (а) импрегнирование водорастворимой соли в нанопористый носитель катализатора; (b) термическую обработку указанного импрегнированного носителя при температуре, превышающей приблизительно 200°С; (с) конденсацию из паровой фазы каталитически активных кластеров золота, имеющих размер в пределах от 0.5 нм до 50 нм, на указанный термически обработанный нанопористый носитель; 3) включающий следующие этапы: а) объединение множества относительно мелких частиц и множества относительно крупных частиц во множество нанопористых композитных частиц; b) осаждение кластеров каталитически активного золота, имеющих размеры в интервале от 0.5 нм до 50 каталитически активного золота на указанные композитные частицы способом конденсации из паровой фазы. Описаны гетерогенные каталитические системы: 1) содержащая нанопористый носитель; по меньшей мере одну водорастворимую соль, импрегнированную в указанный носитель; кластеры каталитически активного золота, имеющие размеры в интервале от 0.5 нм до 50 нм, осажденные на указанном носителе с показателем глубины проникновения в интервале от примерно 1×10-9 до примерно 0.1; 2) 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. Описана система защиты органов дыхания, включающая любую из описанных выше, гетерогенных каталитических систем. Техническим результатом является существенное усовершенствование получения каталитических систем, содержащих золото, и повышение их характеристик 8 н. и 13 з.п. ф-лы, 4 табл., 58 ил.
Description
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.
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
(c) конденсацию из паровой фазы каталитически активных кластеров золота, имеющих размер в пределах от 0,5 до 50 нм, на указанный термически обработанный нанопористый носитель.
(a) импрегнирование водорастворимой соли в нанопористый носитель катализатора;
(b) термическую обработку указанного импрегнированного носителя при температуре, превышающей приблизительно 200°С; и
(c) 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
с) кластеры каталитически активного золота, имеющие размер в интервале от 0,5 до 50 нм, осажденные на указанный носитель способом конденсации из паровой фазы.
a) нанопористый носитель;
b) соль щелочного металла, импрегнированную в указанный носитель; и
с) кластеры каталитически активного золота, имеющие размер в интервале от 0,5 до 50 нм, осажденные на указанный носитель способом конденсации из паровой 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 нм до 50 каталитически активного золота на указанные композитные частицы способом конденсации из паровой фазы.
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 нм до 50 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 кластеры каталитически активного золота, имеющие размер в интервале от 0,5 до 50 нм, осажденные 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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