References

catal

Катализ в промышленности

Kataliz v promyshlennosti

1816-03872413-6476

LLC "KALVIS"

10.18412/1816-0387-2025-5-46-58

catal-1198

Research Article

КАТАЛИЗ В ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИ

CATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRY

Высокопроизводительные каталитические пленки PdZn и PdAg для полугидрирования 2-метил-3-бутин-2-ола в проточном микрореакторе

High-Performance PdZn and PdAg Catalytic Films for the Semihydrogenation of 2-Methyl-3-Butyn-2-ol in a Flow Microreactor

Охлопкова

Л. Б.

Okhlopkova

L. B.

ctls@kalvis.ru

Просвирин

И. П.

Prosvirin

I. P.

ctls@kalvis.ru

Хайрулин

С. Р.

Khairulin

S. R.

ctls@kalvis.ru

Институт катализа СО РАН, НовосибирскРоссияInstitute of Catalysis, Siberian Branch of the Russian Academy of Sciences, NovosibirskRussian Federation

2025

29092025

2554658

2025

LLC "KALVIS"

https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice

https://www.catalysis-kalvis.ru/jour/article/view/1198

Синтез активного, селективного и стабильного каталитического покрытия является сложной задачей для полугидрирования алкенолов в проточном микрореакторе, что является потенциально эффективной стратегией для производства алкенолов в тонком органическом синтезе. В этой работе каталитические пленки PdMe/TiO2 (Me = Zn, Ag) были получены с помощью простого и эффективного темплатного золь-гель метода и использованы в полугидрировании 2-метил-3-бутин-2-ола. Приготовленные биметаллические каталитические пленки PdMe/TiO2 (Me = Zn, Ag) показали высокую каталитическую селективность благодаря образованию сплавных наночастиц (НЧ) PdZn и PdAg. Поверхность активного центра PdAg изменяется в условиях реакции. PdZn-пленка демонстрирует лучшую каталитическую эффективность. Допирование носителя цинком увеличивает селективность и стабильность пленок. Анализ рентгеновских фотоэлектронных спектров показал, что допированная цинком пленка PdZn/Ti0,8Zn0,2O1,8 имеет более высокую концентрацию активных центров PdZn и лучшую устойчивость к окислению, чем PdZn/TiO2. Каталитические пленки PdAg/TiO2 и PdZn/Ti0,8Zn0,2O1,8 продемонстрировали высокую стабильность при длительных испытаниях.

Synthesizing an active, selective, and stable catalytic coating is a challenging task for the semihydrogenation of alkenols in a flow microreactor, which offers a potentially effective strategy for alkenol production in fine organic synthesis. In this study, PdMe/TiO2 (Me = Zn, Ag) catalytic films were prepared using a simple and efficient template sol-gel method and used in the semihydrogenation of 2-methyl-3-butyn-2-ol. The prepared bimetallic PdMe/TiO2 (Me = Zn, Ag) catalytic films demonstrated high catalytic selectivity due to the formation of PdZn and PdAg alloy nanoparticles (NPs). The surface area of the PdAg active site changes under the reaction conditions. The PdZn film demonstrates better catalytic efficiency. Doping the support with zinc increases the selectivity and stability of the films. Analysis of X-ray photoelectron spectra showed that the zinc-doped PdZn/Ti0.8Zn0.2O1.8 film has a higher concentration of PdZn active sites and better oxidation stability than PdZn/TiO2. The PdAg/TiO2 and PdZn/Ti0.8Zn0.2O1.8 catalytic films demonstrated high stability during long-term testing.

2-метил-3-бутин-2-олполугидрированиепроточный микрореакторPdZnPdAgсплавные наночастицыустойчивость к окислению

2-methyl-3-butyn-2-olsemihydrogenationflow microreactorPdZnPdAgalloy nanoparticlesoxidation stability

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The authors declare that there are no conflicts of interest present.