Deliberate Control of the Structure-Specific Active Sites in PdIn Bimetallic Catalysts Using Adsorbate Induced Segregation effects | Sciact - CRIS-система Института катализа

Deliberate Control of the Structure-Specific Active Sites in PdIn Bimetallic Catalysts Using Adsorbate Induced Segregation effects Научная публикация

Журнал

Applied Surface Science
ISSN: 0169-4332

Вых. Данные

Год: 2023, Том: 608, Номер статьи : 155086, Страниц : 13 DOI: 10.1016/j.apsusc.2022.155086

Ключевые слова

PdIn bimetallic nanoparticles; Adsorption-induced segregation; Structure-specific active site; NAP-XPS; DRIFTS CO

Авторы

Bukhtiyarov A.V. ¹ , Panafidin M.A. ¹ , Prosvirin I.P. ¹ , Smirnova N.S. ^1,2 , Markov P.V. ^1,2 , Baeva G.N. ² , Mashkovsky I.S. ² , Bragina G.O. ² , Rameshan C. ³ , Gerasimov E.Yu. ¹ , Zubavichus Y.V. ¹ , Bukhtiyarov V.I. ¹ , Stakheev A.Yu. ²

Организации

1	Boreskov Institute of Catalysis, Lavrentieva ave. 5, 630090 Novosibirsk, Russian Federation
2	N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Russian Federation
3	Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC/01, 1060 Vienna, Austria

Информация о финансировании (1)

Российский научный фонд

19-13-00285-П

A bimetallic PdIn/Al2O3 catalyst has been prepared, characterized by diffuse reflectance infrared Fourier transform spectroscopy of adsorbed CO (DRIFTS CO), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), and tested towards the liquid-phase diphenylacetylene hydrogenation at room temperature. It was shown that the freshly reduced catalyst contains PdIn intermetallic nanoparticles that demonstrate excellent selectivity in the diphenylacetylene selective hydrogenation to diphenylethylene ∼ 98 % at 90 % conversion. An oxidative treatment of the catalyst induces preferential oxidative leaching of the In component from the intermetallic compound, modifying the catalyst active sites structure to the state with a high hydrogenation activity but poor stilbene selectivity. The changes upon the redox treatments are essentially reversible and reproducible. This effect can be intentionally used to get an optimum balance between activity and selectivity of the catalyst.

Bukhtiyarov A.V. , Panafidin M.A. , Prosvirin I.P. , Smirnova N.S. , Markov P.V. , Baeva G.N. , Mashkovsky I.S. , Bragina G.O. , Rameshan C. , Gerasimov E.Y. , Zubavichus Y.V. , Bukhtiyarov V.I. , Stakheev A.Y.
Deliberate Control of the Structure-Specific Active Sites in PdIn Bimetallic Catalysts Using Adsorbate Induced Segregation effects
Applied Surface Science. 2023. V.608. 155086 :1-13. DOI: 10.1016/j.apsusc.2022.155086 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	19 июл. 2022 г.
Принята к публикации:	24 сент. 2022 г.
Опубликована online:	3 окт. 2022 г.
Опубликована в печати:	1 янв. 2023 г.

Web of science:	WOS:000876016100006
Scopus:	2-s2.0-85139327226
РИНЦ:	53841053
Chemical Abstracts:	2022:2584127
OpenAlex:	W4300862636

БД	Цитирований
Scopus	6
Web of science	6
РИНЦ	2
OpenAlex	3