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Matouk Z, Islam M, Gutiérrez M, Pireaux JJ, Achour A. X-ray Photoelectron Spectroscopy (XPS) Analysis of Ultrafine Au Nanoparticles Supported over Reactively Sputtered TiO 2 Films. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3692. [PMID: 36296882 PMCID: PMC9609015 DOI: 10.3390/nano12203692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
The impact of a titania (TiO2) support film surface on the catalytic activity of gold nanoparticles (Au NP) was investigated. Using the reactive dc-magnetron sputtering technique, TiO2 films with an amorphous, anatase, and nitrogen-doped anatase crystal structure were produced for a subsequent role as a support material for Au NP. Raman spectra of these TiO2 films revealed that both vacuum and NH3 annealing treatments promoted amorphous to anatase phase transformation through the presence of a peak in the 513-519 cm-1 spectral regime. Furthermore, annealing under NH3 flux had an associated blue shift and broadening of the Raman active mode at 1430 cm-1, characteristic of an increase in the oxygen vacancies (VO). For a 3 to 15 s sputter deposition time, the Au NP over TiO2 support films were in the 6.7-17.1 nm size range. From X-ray photoelectron spectroscope (XPS) analysis, the absence of any shift in the Au 4f core level peak implied that there was no change in the electronic properties of Au NP. On the other hand, spontaneous hydroxyl (-OH) group adsorption to anatase TiO2 support was instantly detected, the magnitude of which was found to be enhanced upon increasing the Au NP loading. Nitrogen-doped anatase TiO2 supporting Au NP with ~21.8 nm exhibited a greater extent of molecular oxygen adsorption. The adsorption of both -OH and O2 species is believed to take place at the perimeter sites of the Au NP interfacing with the TiO2 film. XPS analyses and discussions about the tentative roles of O2 and -OH adsorbent species toward Au/TiO2 systems corroborate very well with interpretations of density functional theory simulations.
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Affiliation(s)
- Zineb Matouk
- Technology Innovation Institute, Abu Dhabi P.O. Box 9639, United Arab Emirates
| | - Mohammad Islam
- GE Aerospace, 3290 Patterson Ave SE, Grand Rapids, MI 49512, USA
| | - Monserrat Gutiérrez
- Technology Innovation Institute, Abu Dhabi P.O. Box 9639, United Arab Emirates
| | - Jean-Jacques Pireaux
- Research Centre, Physics of Matter and Radiation (PMR), LISE Laboratory, University of Namur, B-5000 Namur, Belgium
| | - Amine Achour
- Pixium Vision S.A. 74 Rue du FGB Saint-Antoine, 75012 Paris, France
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4
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Schlexer P, Widmann D, Behm RJ, Pacchioni G. CO Oxidation on a Au/TiO2 Nanoparticle Catalyst via the Au-Assisted Mars–van Krevelen Mechanism. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01751] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philomena Schlexer
- Dipartimento di Scienza dei Materiali, Universitá Milano-Bicocca, Milan I-20125, Italy
| | - Daniel Widmann
- Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm, Germany
| | - R. Jürgen Behm
- Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm, Germany
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Universitá Milano-Bicocca, Milan I-20125, Italy
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5
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An J, Wang Y, Lu J, Zhang J, Zhang Z, Xu S, Liu X, Zhang T, Gocyla M, Heggen M, Dunin-Borkowski RE, Fornasiero P, Wang F. Acid-Promoter-Free Ethylene Methoxycarbonylation over Ru-Clusters/Ceria: The Catalysis of Interfacial Lewis Acid–Base Pair. J Am Chem Soc 2018; 140:4172-4181. [DOI: 10.1021/jacs.8b01742] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jinghua An
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yehong Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jianmin Lu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jian Zhang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhixin Zhang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Shutao Xu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xiaoyan Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Tao Zhang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Martin Gocyla
- Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Juelich GmbH, Juelich 52425, Germany
| | - Marc Heggen
- Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Juelich GmbH, Juelich 52425, Germany
| | - Rafal E. Dunin-Borkowski
- Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Juelich GmbH, Juelich 52425, Germany
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences, INSTM, Center of Excellence for Nanostructured Materials (CENMAT), University of Trieste, Via L. Giorgieri 1, Trieste 34127, Italy
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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7
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Ruiz Puigdollers A, Schlexer P, Tosoni S, Pacchioni G. Increasing Oxide Reducibility: The Role of Metal/Oxide Interfaces in the Formation of Oxygen Vacancies. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01913] [Citation(s) in RCA: 423] [Impact Index Per Article: 60.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antonio Ruiz Puigdollers
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Philomena Schlexer
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Sergio Tosoni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
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8
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Widmann D, Krautsieder A, Walter P, Brückner A, Behm RJ. How Temperature Affects the Mechanism of CO Oxidation on Au/TiO2: A Combined EPR and TAP Reactor Study of the Reactive Removal of TiO2 Surface Lattice Oxygen in Au/TiO2 by CO. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01219] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Widmann
- Institute
of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee
47, D-89081 Ulm, Germany
| | - Anke Krautsieder
- Institute
of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee
47, D-89081 Ulm, Germany
| | - Patrick Walter
- Institute
of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee
47, D-89081 Ulm, Germany
| | - Angelika Brückner
- Catalytic
in situ Studies, Leibniz Institute of Catalysis, D-18059 Rostock, Germany
| | - R. Jürgen Behm
- Institute
of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee
47, D-89081 Ulm, Germany
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