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Usoltsev O, Stoian D, Skorynina A, Kozyr E, Njoroge PN, Pellegrini R, Groppo E, van Bokhoven JA, Bugaev A. Restructuring of Palladium Nanoparticles during Oxidation by Molecular Oxygen. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401184. [PMID: 38884188 DOI: 10.1002/smll.202401184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 06/02/2024] [Indexed: 06/18/2024]
Abstract
An interplay between Pd and PdO and their spatial distribution inside the particles are relevant for numerous catalytic reactions. Using in situ time-resolved X-ray absorption spectroscopy (XAS) supported by theoretical simulations, a mechanistic picture of the structural evolution of 2.3 nm palladium nanoparticles upon their exposure to molecular oxygen is provided. XAS analysis revealed the restructuring of the fcc-like palladium surface into the 4-coordinated structure of palladium oxide upon absorption of oxygen from the gas phase and formation of core@shell Pd@PdO structures. The reconstruction starts from the low-coordinated sites at the edges of palladium nanoparticles. Formation of the PdO shell does not affect the average Pd‒Pd coordination numbers, since the decrease of the size of the metallic core is compensated by a more spherical shape of the oxidized nanoparticles due to a weaker interaction with the support. The metallic core is preserved below 200 °C even after continuous exposure to oxygen, with its size decreasing insignificantly upon increasing the temperature, while above 200 °C, bulk oxidation proceeds. The Pd‒Pd distances in the metallic phase progressively decrease upon increasing the fraction of the Pd oxide due to the alignment of the cell parameters of the two phases.
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Affiliation(s)
- Oleg Usoltsev
- ALBA Synchrotron, Cerdanyola del Valles, Barcelona, 08290, Spain
| | - Dragos Stoian
- The Swiss-Norwegian Beamlines (SNBL) at ESRF, BP 220, Grenoble, 38043, France
| | - Alina Skorynina
- ALBA Synchrotron, Cerdanyola del Valles, Barcelona, 08290, Spain
| | - Elizaveta Kozyr
- Department of Chemistry, INSTM and NIS Centre, University of Torino, via Quarello 15A, Turin, 10125, Italy
| | - Peter N Njoroge
- Department of Chemistry, University of Oslo, Sem Saelandsvei 26, Oslo, 0315, Norway
| | - Riccardo Pellegrini
- Chimet S.p.A. - Catalyst Division, Via di Pescaiola 74, Viciomaggio Arezzo, 52041, Italy
| | - Elena Groppo
- Department of Chemistry, INSTM and NIS Centre, University of Torino, via Quarello 15A, Turin, 10125, Italy
| | - Jeroen A van Bokhoven
- Paul Scherrer Institute, Villigen, 5232, Switzerland
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Aram Bugaev
- Paul Scherrer Institute, Villigen, 5232, Switzerland
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2
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Campisi S, Beevers C, Nasrallah A, Catlow CRA, Chan-Thaw CE, Manzoli M, Dimitratos N, Willock DJ, Roldan A, Villa A. DFT-Assisted Spectroscopic Studies on the Coordination of Small Ligands to Palladium: From Isolated Ions to Nanoparticles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:4781-4790. [PMID: 33828633 PMCID: PMC8016172 DOI: 10.1021/acs.jpcc.9b09791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/28/2019] [Indexed: 06/12/2023]
Abstract
A combination of experimental spectroscopies (UV-vis and Fourier-transform infrared) and computational modeling was used to investigate the coordination of small ligands (aminopropanol and propanediol) to Pd species during the metal nanoparticle formation process. Differences emerged between O- (propanediol) and N-containing (aminopropanol) ligands. In particular, a strong interaction between the NH amino group and Pd2+ ions could be inferred on the basis of spectroscopic evidences, which was corroborated by theoretical simulations, which confirmed the preferential coordination of aminopropanol through the NH group. This interaction seems to potentially cause the aminopropanol ligand to control the particle shape through a selective blocking of Pd(100) facets, which promote the growth on the Pd(111) facets.
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Affiliation(s)
- Sebastiano Campisi
- Dipartimento
di Chimica, Università degli Studi
di Milano, Via Golgi 19, I-20133 Milano, Italy
| | - Cameron Beevers
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT Cardiff, U.K.
| | - Ali Nasrallah
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT Cardiff, U.K.
| | - C. Richard A. Catlow
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT Cardiff, U.K.
| | - Carine e. Chan-Thaw
- Dipartimento
di Chimica, Università degli Studi
di Milano, Via Golgi 19, I-20133 Milano, Italy
| | - Maela Manzoli
- Department
of Drug Science and Technology and NIS—Centre for Nanostructured
Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
| | - Nikolaos Dimitratos
- Dipartimento
di Chimica Industriale e dei Materiali, Alma Mater Studiorum Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - David J. Willock
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT Cardiff, U.K.
| | - Alberto Roldan
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT Cardiff, U.K.
| | - Alberto Villa
- Dipartimento
di Chimica, Università degli Studi
di Milano, Via Golgi 19, I-20133 Milano, Italy
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Preparation of metal-polymer nanocomposites by chemical reduction of metal ions: functions of polymer matrices. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1646-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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4
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Groppo E, Lazzarini A, Carosso M, Bugaev A, Manzoli M, Pellegrini R, Lamberti C, Banerjee D, Longo A. Dynamic Behavior of Pd/P4VP Catalyst during the Aerobic Oxidation of 2-Propanol: A Simultaneous SAXS/XAS/MS Operando Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01421] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elena Groppo
- Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
| | - Andrea Lazzarini
- Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
- Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Sem Saelands vei 26, Oslo N-0315, Norway
| | - Michele Carosso
- Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
| | - Aram Bugaev
- The Smart Materials Research Center, Southern Federal University, Zorge Street 5, Rostov-on-Don 344090, Russia
| | - Maela Manzoli
- Department of Drug Science and Technology, NIS Centre and INSTM, University of Turin, Via Pietro Giuria 9, Turin I-10125, Italy
| | - Riccardo Pellegrini
- Chimet SpA - Catalyst Division, Via di Pescaiola 74, Viciomaggio Arezzo I-52041, Italy
| | - Carlo Lamberti
- The Smart Materials Research Center, Southern Federal University, Zorge Street 5, Rostov-on-Don 344090, Russia
- Department of Physics and CrisDi Interdepartmental Centre, University of Turin, via Pietro Giuria 1, Turin 10125, Italy
| | - Dipanjan Banerjee
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, Leuven 3001, Belgium
| | - Alessandro Longo
- Netherlands Organization for Scientific Research at ESRF, BP 220, Grenoble F-38043 Cedex 9, France
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Sadjadi S, Akbari M, Monflier E, Heravi MM, Leger B. Pd nanoparticles immobilized on halloysite decorated with a cyclodextrin modified melamine-based polymer: a promising heterogeneous catalyst for hydrogenation of nitroarenes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03014f] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, a hybrid system composed of halloysite (Hal) and a cyclodextrin modified melamine-based polymer is developed and employed for immobilization of Pd(0) nanoparticles.
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Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department
- Faculty of Petrochemicals
- Iran Polymer and Petrochemicals Institute
- Tehran
- Iran
| | - Maryam Akbari
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | | | - Majid M. Heravi
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
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