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Lv L, Wang S, Ding Y, Zhang L, Gao Y, Wang S. Deactivation mechanism and anti-deactivation modification of Ru/TiO 2 catalysts for CH 3Br oxidation. CHEMOSPHERE 2020; 257:127249. [PMID: 32526463 DOI: 10.1016/j.chemosphere.2020.127249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/19/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Lirong Lv
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Sheng Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China.
| | - Ya Ding
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Lei Zhang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yang Gao
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Shudong Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China
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2
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Gilis N, Jacobs L, Barroo C, Visart de Bocarmé T. Surface Segregation in Au–Ag Alloys Investigated by Atom Probe Tomography. Top Catal 2018. [DOI: 10.1007/s11244-018-1040-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sezen H, Alemán B, Amati M, Dalmiglio M, Gregoratti L. Spatially Resolved Chemical Characterization with Scanning Photoemission Spectromicroscopy: Towards Near-Ambient-Pressure Experiments. ChemCatChem 2015. [DOI: 10.1002/cctc.201500637] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hikmet Sezen
- Elettra-Sincrotrone Trieste SCpA; SS14-Km163.5 in Area Science Park 34149 Trieste Italy
| | - Belén Alemán
- IMDEA Materials Institute; c/Eric Kandel 2, Getafe 28960 Madrid Spain
| | - Matteo Amati
- Elettra-Sincrotrone Trieste SCpA; SS14-Km163.5 in Area Science Park 34149 Trieste Italy
| | - Matteo Dalmiglio
- Joint Research Centre, Institute for Health and Consumer Protection, Nanobiosciences Unit; Via Enrico Fermi 2749 Ispra (VA) Italy
| | - Luca Gregoratti
- Elettra-Sincrotrone Trieste SCpA; SS14-Km163.5 in Area Science Park 34149 Trieste Italy
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Rizzi M, Furlan S, Peressi M, Baldereschi A, Dri C, Peronio A, Africh C, Lacovig P, Vesselli E, Comelli G. Tailoring Bimetallic Alloy Surface Properties by Kinetic Control of Self-Diffusion Processes at the Nanoscale. J Am Chem Soc 2012; 134:16827-33. [DOI: 10.1021/ja307294p] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michele Rizzi
- Physics Department, University of Trieste, Strada Costiera 11, I-34151
Trieste, Italy
- Institute
of Theoretical Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Sara Furlan
- Physics Department, University of Trieste, Strada Costiera 11, I-34151
Trieste, Italy
| | - Maria Peressi
- Physics Department, University of Trieste, Strada Costiera 11, I-34151
Trieste, Italy
- IOM-CNR DEMOCRITOS, Theory@Elettra
Group, Trieste, Italy and Italian Consortium on Materials Science
and Technology (INSTM)
| | - Alfonso Baldereschi
- Physics Department, University of Trieste, Strada Costiera 11, I-34151
Trieste, Italy
- Institute
of Theoretical Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- IOM-CNR DEMOCRITOS, Trieste,
Italy
| | - Carlo Dri
- Physics Department
and CENMAT, University of Trieste, via
Valerio 2, I-34127 Trieste,
Italy
- IOM-CNR Laboratorio TASC,
Area Science
Park, S.S. 14 km 163.5, I-34149 Basovizza (Trieste), Italy
| | - Angelo Peronio
- Physics Department
and CENMAT, University of Trieste, via
Valerio 2, I-34127 Trieste,
Italy
- IOM-CNR Laboratorio TASC,
Area Science
Park, S.S. 14 km 163.5, I-34149 Basovizza (Trieste), Italy
| | - Cristina Africh
- IOM-CNR Laboratorio TASC,
Area Science
Park, S.S. 14 km 163.5, I-34149 Basovizza (Trieste), Italy
| | - Paolo Lacovig
- Sincrotrone Trieste S.C.p.A.,
Area Science Park, S.S. 14 km 163.5, I-34149 Trieste, Italy
| | - Erik Vesselli
- Physics Department
and CENMAT, University of Trieste, via
Valerio 2, I-34127 Trieste,
Italy
- IOM-CNR Laboratorio TASC,
Area Science
Park, S.S. 14 km 163.5, I-34149 Basovizza (Trieste), Italy
| | - Giovanni Comelli
- Physics Department
and CENMAT, University of Trieste, via
Valerio 2, I-34127 Trieste,
Italy
- IOM-CNR Laboratorio TASC,
Area Science
Park, S.S. 14 km 163.5, I-34149 Basovizza (Trieste), Italy
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Welker P, Wieckhorst O, Kerscher TC, Müller S. Predicting the segregation profile of the Pt25Rh75(100) surface from first-principles. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:384203. [PMID: 21386537 DOI: 10.1088/0953-8984/22/38/384203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The segregation profile of the Pt(25)Rh(75)(100) surface is studied by the combination of density functional theory calculations with the cluster-expansion method and Monte Carlo simulations. We construct the stability diagram for the surface layers, which allows the prediction of the most stable atomic configuration for a given average concentration in those layers. On this basis, we apply the cluster-expansion Hamiltonian in grand-canonical Monte Carlo simulations for the prediction of the temperature-dependent concentration profile. The experimentally found enrichment of Pt in the top layer and depletion in the second layer is nicely confirmed by the calculations.
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Affiliation(s)
- P Welker
- Lehrstuhl für Festkörperphysik, Universität Erlangen-Nürnberg, Staudtstrasse 7, 91058 Erlangen, Germany
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