Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub>
The transformations of chemical states and structures occurring in the PdIn/Al<sub>2</sub>O<sub>3</sub> catalyst upon redox treatments in different gaseous atmospheres at different temperatures are addressed by an assortment of in situ bulk- (XRD) and surface-sensitive (XPS a...
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MDPI AG
2023-09-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/9/1356 |
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| author | Andrey V. Bukhtiyarov Maxim A. Panafidin Igor P. Prosvirin Nadezhda S. Smirnova Pavel V. Markov Galina N. Baeva Igor S. Mashkovsky Galina O. Bragina Zakhar S. Vinokurov Yan V. Zubavichus Valerii I. Bukhtiyarov Alexander Yu. Stakheev |
| author_facet | Andrey V. Bukhtiyarov Maxim A. Panafidin Igor P. Prosvirin Nadezhda S. Smirnova Pavel V. Markov Galina N. Baeva Igor S. Mashkovsky Galina O. Bragina Zakhar S. Vinokurov Yan V. Zubavichus Valerii I. Bukhtiyarov Alexander Yu. Stakheev |
| author_sort | Andrey V. Bukhtiyarov |
| collection | DOAJ |
| description | The transformations of chemical states and structures occurring in the PdIn/Al<sub>2</sub>O<sub>3</sub> catalyst upon redox treatments in different gaseous atmospheres at different temperatures are addressed by an assortment of in situ bulk- (XRD) and surface-sensitive (XPS and DRIFTS CO) techniques. Any desired state of the catalyst between two opposite extremes of highly dispersed oxide species and regularly ordered PdIn intermetallic compound could be set in fully controlled and reversible ways by selecting appropriate conditions for the reductive treatment starting from the fully oxidized state. Since mutual conversions of multi-atomic Pd<sub>n</sub> centers into single-site Pd<sub>1</sub> centers are involved in these transformations, the methodology could be used to find an optimum balance between the activity and selectivity of the catalytic system. |
| first_indexed | 2024-03-10T22:53:05Z |
| format | Article |
| id | doaj.art-3f8ebd8d4f394d37be4126da5b1f4b37 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T22:53:05Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-3f8ebd8d4f394d37be4126da5b1f4b372023-11-19T10:09:33ZengMDPI AGCrystals2073-43522023-09-01139135610.3390/cryst13091356Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub>Andrey V. Bukhtiyarov0Maxim A. Panafidin1Igor P. Prosvirin2Nadezhda S. Smirnova3Pavel V. Markov4Galina N. Baeva5Igor S. Mashkovsky6Galina O. Bragina7Zakhar S. Vinokurov8Yan V. Zubavichus9Valerii I. Bukhtiyarov10Alexander Yu. Stakheev11Boreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaZelinsky Institute of Organic Chemistry, Leninsky Prospect 47, 119991 Moscow, RussiaZelinsky Institute of Organic Chemistry, Leninsky Prospect 47, 119991 Moscow, RussiaZelinsky Institute of Organic Chemistry, Leninsky Prospect 47, 119991 Moscow, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis, Lavrentieva Ave. 5, 630090 Novosibirsk, RussiaZelinsky Institute of Organic Chemistry, Leninsky Prospect 47, 119991 Moscow, RussiaThe transformations of chemical states and structures occurring in the PdIn/Al<sub>2</sub>O<sub>3</sub> catalyst upon redox treatments in different gaseous atmospheres at different temperatures are addressed by an assortment of in situ bulk- (XRD) and surface-sensitive (XPS and DRIFTS CO) techniques. Any desired state of the catalyst between two opposite extremes of highly dispersed oxide species and regularly ordered PdIn intermetallic compound could be set in fully controlled and reversible ways by selecting appropriate conditions for the reductive treatment starting from the fully oxidized state. Since mutual conversions of multi-atomic Pd<sub>n</sub> centers into single-site Pd<sub>1</sub> centers are involved in these transformations, the methodology could be used to find an optimum balance between the activity and selectivity of the catalytic system.https://www.mdpi.com/2073-4352/13/9/1356PdIn intermetallic compoundselective acetylene hydrogenationredox treatmentsXRDXPSDRIFTS CO |
| spellingShingle | Andrey V. Bukhtiyarov Maxim A. Panafidin Igor P. Prosvirin Nadezhda S. Smirnova Pavel V. Markov Galina N. Baeva Igor S. Mashkovsky Galina O. Bragina Zakhar S. Vinokurov Yan V. Zubavichus Valerii I. Bukhtiyarov Alexander Yu. Stakheev Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub> Crystals PdIn intermetallic compound selective acetylene hydrogenation redox treatments XRD XPS DRIFTS CO |
| title | Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub> |
| title_full | Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub> |
| title_fullStr | Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub> |
| title_full_unstemmed | Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub> |
| title_short | Reversible Transformations of Palladium–Indium Intermetallic Nanoparticles upon Repetitive Redox Treatments in H<sub>2</sub>/O<sub>2</sub> |
| title_sort | reversible transformations of palladium indium intermetallic nanoparticles upon repetitive redox treatments in h sub 2 sub o sub 2 sub |
| topic | PdIn intermetallic compound selective acetylene hydrogenation redox treatments XRD XPS DRIFTS CO |
| url | https://www.mdpi.com/2073-4352/13/9/1356 |
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