1
|
Liu L, Corma A. Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles. Chem Rev 2023; 123:4855-4933. [PMID: 36971499 PMCID: PMC10141355 DOI: 10.1021/acs.chemrev.2c00733] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Heterogeneous bimetallic catalysts have broad applications in industrial processes, but achieving a fundamental understanding on the nature of the active sites in bimetallic catalysts at the atomic and molecular level is very challenging due to the structural complexity of the bimetallic catalysts. Comparing the structural features and the catalytic performances of different bimetallic entities will favor the formation of a unified understanding of the structure-reactivity relationships in heterogeneous bimetallic catalysts and thereby facilitate the upgrading of the current bimetallic catalysts. In this review, we will discuss the geometric and electronic structures of three representative types of bimetallic catalysts (bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles) and then summarize the synthesis methodologies and characterization techniques for different bimetallic entities, with emphasis on the recent progress made in the past decade. The catalytic applications of supported bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles for a series of important reactions are discussed. Finally, we will discuss the future research directions of catalysis based on supported bimetallic catalysts and, more generally, the prospective developments of heterogeneous catalysis in both fundamental research and practical applications.
Collapse
|
2
|
Paz Herrera LI, Freitas de Lima e Freitas L, Hong J, Hoffman AS, Bare SR, Nikolla E, Medlin W. Reactivity of Pd-MO2 encapsulated catalytic systems for CO oxidation. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01916c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we present an investigation aimed at characterizing and understanding the synergistic interactions in encapsulated catalytic structures between the metal core (i.e., Pd) and oxide shell (i.e., TiO2,...
Collapse
|
3
|
Bukhtiyarov AV, Prosvirin IP, Panafidin MA, Fedorov AY, Klyushin AY, Knop-Gericke A, Zubavichus YV, Bukhtiyarov VI. Near-Ambient Pressure XPS and MS Study of CO Oxidation over Model Pd-Au/HOPG Catalysts: The Effect of the Metal Ratio. NANOMATERIALS 2021; 11:nano11123292. [PMID: 34947641 PMCID: PMC8703420 DOI: 10.3390/nano11123292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/01/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022]
Abstract
In this study, the dependence of the catalytic activity of highly oriented pyrolytic graphite (HOPG)-supported bimetallic Pd-Au catalysts towards the CO oxidation based on the Pd/Au atomic ratio was investigated. The activities of two model catalysts differing from each other in the initial Pd/Au atomic ratios appeared as distinctly different in terms of their ignition temperatures. More specifically, the PdAu-2 sample with a lower Pd/Au surface ratio (~0.75) was already active at temperatures less than 150 °C, while the PdAu-1 sample with a higher Pd/Au surface ratio (~1.0) became active only at temperatures above 200 °C. NAP XPS revealed that the exposure of the catalysts to a reaction mixture at RT induces the palladium surface segregation accompanied by an enrichment of the near-surface regions of the two-component Pd-Au alloy nanoparticles with Pd due to adsorption of CO on palladium atoms. The segregation extent depends on the initial Pd/Au surface ratio. The difference in activity between these two catalysts is determined by the presence or higher concentration of specific active Pd sites on the surface of bimetallic particles, i.e., by the ensemble effect. Upon cooling the sample down to room temperature, the reverse redistribution of the atomic composition within near-surface regions occurs, which switches the catalyst back into inactive state. This observation strongly suggests that the optimum active sites emerge under reaction conditions exclusively, involving both high temperature and a reactive atmosphere.
Collapse
Affiliation(s)
- Andrey V. Bukhtiyarov
- Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, 630559 Kol’tsovo, Russia; (M.A.P.); (Y.V.Z.)
- Correspondence: ; Tel.: +7-383-326-97-87
| | - Igor P. Prosvirin
- Department of Physicochemical Techniques, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia; (I.P.P.); (A.Y.F.); (V.I.B.)
| | - Maxim A. Panafidin
- Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, 630559 Kol’tsovo, Russia; (M.A.P.); (Y.V.Z.)
| | - Alexey Yu. Fedorov
- Department of Physicochemical Techniques, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia; (I.P.P.); (A.Y.F.); (V.I.B.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Alexander Yu. Klyushin
- Inorganic Chemistry Department, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany; (A.Y.K.); (A.K.-G.)
- BESSY II, Helmholtz Center for Materials and Energy, 12489 Berlin, Germany
| | - Axel Knop-Gericke
- Inorganic Chemistry Department, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany; (A.Y.K.); (A.K.-G.)
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - Yan V. Zubavichus
- Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, 630559 Kol’tsovo, Russia; (M.A.P.); (Y.V.Z.)
| | - Valery I. Bukhtiyarov
- Department of Physicochemical Techniques, Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia; (I.P.P.); (A.Y.F.); (V.I.B.)
| |
Collapse
|
4
|
Kim J, Choi H, Kim D, Park JY. Operando Surface Studies on Metal-Oxide Interfaces of Bimetal and Mixed Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02340] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jeongjin Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hanseul Choi
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Daeho Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| |
Collapse
|
5
|
Zhang H, Pan J, Zhou Q, Xia F. Nanometal Thermocatalysts: Transformations, Deactivation, and Mitigation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005771. [PMID: 33458963 DOI: 10.1002/smll.202005771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Nanometals have been proven to be efficient thermocatalysts in the last decades. Their enhanced catalytic activity and tunable functionalities make them intriguing candidates for a wide range of catalytic applications, such as gaseous reactions and compound synthesis/decomposition. On the other hand, the enhanced specific surface energy and reactivity of nanometals can lead to configuration transformation and thus catalytic deactivation during the synthesis and catalysis, which largely undermines the activity and service time, thereby calling for urgent research effort to understand the deactivating mechanisms and develop efficient mitigating methods. Herein, the recent progress in understanding the configuration transformation-induced catalytic deactivation within nanometals is reviewed. The major pathways of configuration transformations, and their kinetics controlled by the environmental factors are presented. The approaches toward mitigating the transformation-induced deactivation are also presented. Finally, a perspective on the future academic approaches toward in-depth understanding of the kinetics of the deactivation of nanometals is proposed.
Collapse
Affiliation(s)
- Hanlei Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| | - Jing Pan
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| | - Qitao Zhou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| |
Collapse
|
6
|
van der Wal LI, Turner SJ, Zečević J. Developments and advances in in situ transmission electron microscopy for catalysis research. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00258a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Recent developments and advances in in situ TEM have raised the possibility to study every step during the catalysts' lifecycle. This review discusses the current state, opportunities and challenges of in situ TEM in the realm of catalysis.
Collapse
Affiliation(s)
- Lars I. van der Wal
- Materials Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- Utrecht
- The Netherlands
| | - Savannah J. Turner
- Materials Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- Utrecht
- The Netherlands
| | - Jovana Zečević
- Materials Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- Utrecht
- The Netherlands
| |
Collapse
|
7
|
Pan B, Chen F, Kou B, Wang J, Tang Q, Guo L, Wang Q, Li Z, Bian W, Wang J. Unexpectedly high stability and surface reconstruction of PdAuAg nanoparticles for formate oxidation electrocatalysis. NANOSCALE 2020; 12:11659-11671. [PMID: 32436927 DOI: 10.1039/d0nr01358g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
High-performance Pd-based nanocatalysts for alkaline methanol and formate fuel cells have stimulated widespread attention. Hence, a series of ternary Pd-Au-Ag nanoalloys have been synthesized on carbon nanotubes, which demonstrate promising activity and unexpectedly high stability for the formate oxidation reaction (FOR) in alkaline medium. The ternary Pd3Au3Ag1 nanoalloy catalyst showed an initial mass activity of 4.51 A mgPd-1 and a retained mass activity of 1.32 A mgPd-1 after chronoamperometric measurement for 3600 s, which are superior to the best values for all FOR catalysts reported so far. The Pd3Au3Ag1 catalyst also showed a good specific activity of 4.32 mA cm-2 for the methanol oxidation reaction. Furthermore, surface reconstruction of the Pd3Au3Ag1 nanoalloy was observed during FOR, where the activity of Pd3Au3Ag1 catalysts increased up to 33% and the cycling durability retained 55% after cyclic voltammetry with the upper potential of 1.7 V. The FOR enhancement is attributed to the formation of mixed oxidation-state Ag sites and the increase in the Pd surface coverage, and provides a new prospect for the design of ternary nanoalloy electrocatalysts for various fuel oxidation reactions.
Collapse
Affiliation(s)
- Bowei Pan
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China. and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Fuyi Chen
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China. and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Bo Kou
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Junpeng Wang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Quan Tang
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China. and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Longfei Guo
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China. and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Qiao Wang
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China. and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Zhen Li
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Weiqi Bian
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Jiali Wang
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China. and School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| |
Collapse
|
8
|
Integrating bimetallic AuPd nanocatalysts with a 2D aza-fused π-conjugated microporous polymer for light-driven benzyl alcohol oxidation. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.04.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
9
|
Li Z, Gao L, Zhu X, Ma W, Feng X, Zhong Q. Synergistic Enhancement over Au‐Pd/TS‐1 Bimetallic Catalysts for Propylene Epoxidation with H
2
and O
2. ChemCatChem 2019. [DOI: 10.1002/cctc.201900845] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhishan Li
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Lin Gao
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Xiangshuai Zhu
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Weihua Ma
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Xiang Feng
- State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum Qingdao 266580 P. R. of China
| | - Qin Zhong
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| |
Collapse
|
10
|
Abdulhussein HA, Ferrari P, Vanbuel J, Heard C, Fielicke A, Lievens P, Janssens E, Johnston RL. Altering CO binding on gold cluster cations by Pd-doping. NANOSCALE 2019; 11:16130-16141. [PMID: 31432842 DOI: 10.1039/c9nr04237g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The introduction of dopant atoms into metal nanoparticles is an effective way to control the interaction with adsorbate molecules and is important in many catalytic processes. In this work, experimental and theoretical evidence of the influence of Pd doping on the bonding between small cationic AuN+ clusters and CO is presented. The CO adsorption is studied by combining low-pressure collision cell reactivity and infrared multiple photon dissociation spectroscopy experiments with density functional theory calculations. Measured dissociation rates of cluster-CO complexes (N ≤ 21) allow the estimation of cluster-CO binding energies, showing that Pd doping increases the CO adsorption energy to an extent that is size-dependent. These trends are reproduced by theoretical calculations up to N = 13. In agreement with theory, measurements of the C-O vibrational frequency suggest that for the doped PdAuN-1+ (N = 3-5, 11) clusters, CO adsorbs on an Au atom, while for N = 6-10 and N = 12-14, CO interacts directly with the Pd dopant. A pronounced red-shifting of the C-O vibrational frequency is observed when CO interacts directly with the Pd dopant, indicating a significant back-donation of electron charge from Pd to CO. In contrast, the blue-shifted frequencies, observed when CO interacts with an Au atom, indicate that σ-donation dominates the Au-CO interaction. Studying such systems at the sub-nanometre scale enables a fundamental comprehension of the interactions between adsorbates, dopants and the host (Au) species at the atomic level.
Collapse
|
11
|
Singh P, Sonika, Gangadharan PK, Khan Z, Kurungot S, Jaiswal A. Cubic Palladium Nanorattles with Solid Octahedron Gold Core for Catalysis and Alkaline Membrane Fuel Cell Applications. ChemCatChem 2019. [DOI: 10.1002/cctc.201900741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Prem Singh
- School of Basic SciencesIndian Institute of Technology Mandi Kamand Mandi- 175005, Himachal Pradesh India
| | - Sonika
- School of Basic SciencesIndian Institute of Technology Mandi Kamand Mandi- 175005, Himachal Pradesh India
| | - Pranav K. Gangadharan
- Physical and Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune Maharashtra 41100 India
- Academy of Scientific and Innovative Research (AcSIR) CSIR-NCL Campus, Pune Maharashtra 411008 India
| | - Ziyauddin Khan
- Laboratory of Organic Electronics Department of Science and TechnologyLinköping University SE-60174 Norrköping Sweden
| | - Sreekumar Kurungot
- Physical and Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune Maharashtra 41100 India
- Academy of Scientific and Innovative Research (AcSIR) CSIR-NCL Campus, Pune Maharashtra 411008 India
| | - Amit Jaiswal
- School of Basic SciencesIndian Institute of Technology Mandi Kamand Mandi- 175005, Himachal Pradesh India
| |
Collapse
|
12
|
Silva TAG, Ferraz CP, Gonçalves RV, Teixeira‐Neto E, Wojcieszak R, Rossi LM. Restructuring of Gold‐Palladium Alloyed Nanoparticles: A Step towards More Active Catalysts for Oxidation of Alcohols. ChemCatChem 2019. [DOI: 10.1002/cctc.201900553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tiago A. G. Silva
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 748 São Paulo 05508-000, SP Brazil
| | - Camila P. Ferraz
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 748 São Paulo 05508-000, SP Brazil
| | - Renato V. Gonçalves
- Instituto de Física de São CarlosUniversidade de São Paulo CP 369 13560-970 São Carlos São Paulo Brazil
| | - Erico Teixeira‐Neto
- Laboratório de Microscopia EletrônicaLNNano-CNPEM C.P. 6192 13083-970 Campinas, SP Brazil
| | - Robert Wojcieszak
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Liane M. Rossi
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 748 São Paulo 05508-000, SP Brazil
| |
Collapse
|
13
|
Saint-Lager MC, Languille MA, Aires FJCS, Bailly A, Garaudée S, Ehret E, Robach O. Carbon Monoxide Oxidation Promoted by a Highly Active Strained PdO Layer at the Surface of Au30Pd70(110). ACS Catal 2019. [DOI: 10.1021/acscatal.8b04190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Marie-Angélique Languille
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON − UMR 5256, 69626 Villeurbanne, France
| | - Francisco J. Cadete Santos Aires
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON − UMR 5256, 69626 Villeurbanne, France
- Laboratory for Catalytic Research, National Research Tomsk State University, 634050 Tomsk, Russia
| | - Aude Bailly
- CNRS Institut Néel and Université Grenoble Alpes, 38000 Grenoble, France
| | - Stéphanie Garaudée
- CNRS Institut Néel and Université Grenoble Alpes, 38000 Grenoble, France
| | - Eric Ehret
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON − UMR 5256, 69626 Villeurbanne, France
| | - Odile Robach
- Université Grenoble Alpes, CEA, INAC-MEM, 38000 Grenoble, France
| |
Collapse
|
14
|
Li Y, Huang J, Zheng Y, Chen M. Surface Compositions of Oxide Supported Bimetallic Catalysts: A Compared Study by High-Sensitivity Low Energy Ion Scattering Spectroscopy and X-Ray Photoemission Spectroscopy. CHEM REC 2019; 19:1432-1443. [PMID: 30663239 DOI: 10.1002/tcr.201800169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/25/2018] [Indexed: 12/29/2022]
Abstract
It is well known that there is a critical relationship between the surface composition and catalytic performance for a bimetallic catalyst. However, in most cases, the surface composition is obviously different from that of the bulk. Moreover, the surface is normally reconstructed under reaction conditions. In this personal account, our recent progresses in determining the surface compositions of oxide supported bimetal catalysts by high-sensitivity low energy ion scattering spectroscopy (HS-LEIS) and X-ray photoemission spectroscopy (XPS) are summarized. Phase diagrams of the surface compositions under various conditions as a function of the bulk composition are established and compared. It is found that oxidation induces de-alloying and enrichment of PdO, CuO, SnO2 on the surface, while H2 reduction results in re-alloying. The addition of the second component not only modifies the nature of the active site, but also varies the dispersion of the active components. The support effects are discussed. The compared studies reveal that HS-LEIS can achieve a more reliable surface composition for oxide supported catalysts.
Collapse
Affiliation(s)
- Yangyang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, P.R. China
| | - Junjie Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, P.R. China
| | - Yanping Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, P.R. China
| | - Mingshu Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, P.R. China
| |
Collapse
|
15
|
Timoshenko J, Wrasman CJ, Luneau M, Shirman T, Cargnello M, Bare SR, Aizenberg J, Friend CM, Frenkel AI. Probing Atomic Distributions in Mono- and Bimetallic Nanoparticles by Supervised Machine Learning. NANO LETTERS 2019; 19:520-529. [PMID: 30501196 DOI: 10.1021/acs.nanolett.8b04461] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Properties of mono- and bimetallic metal nanoparticles (NPs) may depend strongly on their compositional, structural (or geometrical) attributes, and their atomic dynamics, all of which can be efficiently described by a partial radial distribution function (PRDF) of metal atoms. For NPs that are several nanometers in size, finite size effects may play a role in determining crystalline order, interatomic distances, and particle shape. Bimetallic NPs may also have different compositional distributions than bulk materials. These factors all render the determination of PRDFs challenging. Here extended X-ray absorption fine structure (EXAFS) spectroscopy, molecular dynamics simulations, and supervised machine learning (artificial neural-network) method are combined to extract PRDFs directly from experimental data. By applying this method to several systems of Pt and PdAu NPs, we demonstrate the finite size effects on the nearest neighbor distributions, bond dynamics, and alloying motifs in mono- and bimetallic particles and establish the generality of this approach.
Collapse
Affiliation(s)
- Janis Timoshenko
- Department of Materials Science and Chemical Engineering , Stony Brook University , Stony Brook , New York 11794 , United States
| | - Cody J Wrasman
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis , Stanford University , Stanford , California 94305 , United States
| | | | | | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis , Stanford University , Stanford , California 94305 , United States
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource , SLAC National Accelerator Laboratory , Menlo Park , California 94025 , United States
| | | | | | - Anatoly I Frenkel
- Department of Materials Science and Chemical Engineering , Stony Brook University , Stony Brook , New York 11794 , United States
- Division of Chemistry , Brookhaven National Laboratory , Upton , New York 11973 , United States
| |
Collapse
|
16
|
Moscu A, Theodoridi C, Cardenas L, Thieuleux C, Motta-Meira D, Agostini G, Schuurman Y, Meunier F. CO dissociation on Pt-Sn nanoparticles triggers Sn oxidation and alloy segregation. J Catal 2018. [DOI: 10.1016/j.jcat.2017.12.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
17
|
Kareem H, Shan S, Lin F, Li J, Wu Z, Prasai B, O'Brien CP, Lee IC, Tran DT, Yang L, Mott D, Luo J, Petkov V, Zhong CJ. Evolution of surface catalytic sites on thermochemically-tuned gold-palladium nanoalloys. NANOSCALE 2018; 10:3849-3862. [PMID: 29417115 DOI: 10.1039/c7nr08748a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoscale alloying constitutes an increasingly-important pathway for design of catalysts for a wide range of technologically important reactions. A key challenge is the ability to control the surface catalytic sites in terms of the alloying composition, thermochemical treatment and phase in correlation with the catalytic properties. Herein we show novel findings of the nanoscale evolution of surface catalytic sites on thermochemically-tuned gold-palladium nanoalloys by probing CO adsorption and oxidation using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) technique. In addition to the bimetallic composition and the support, the surface sites are shown to depend strongly on the thermochemical treatment condition, demonstrating that the ratio of three-fold vs. bridge or atop Pd sites is greatly reduced by thermochemical treatment under hydrogen in comparison with that under oxygen. This type of surface reconstruction is further supported by synchrotron high-energy X-ray diffraction coupled to atomic pair distribution function (HE-XRD/PDF) analysis of the nanoalloy structure, revealing an enhanced degree of random alloying for the catalysts thermochemically treated under hydrogen. The nanoscale alloying and surface site evolution characteristics were found to correlate strongly with the catalytic activity of CO oxidation. These findings have significant implications for the nanoalloy-based design of catalytic synergy.
Collapse
Affiliation(s)
- Haval Kareem
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Li Y, Hu J, Ma D, Zheng Y, Chen M, Wan H. Disclosure of the Surface Composition of TiO2-Supported Gold–Palladium Bimetallic Catalysts by High-Sensitivity Low-Energy Ion Scattering Spectroscopy. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03839] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yangyang Li
- State Key
Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, Department of Chemistry, College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Jun Hu
- State Key
Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, Department of Chemistry, College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Dongdong Ma
- State Key
Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, Department of Chemistry, College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Yanping Zheng
- State Key
Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, Department of Chemistry, College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Mingshu Chen
- State Key
Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, Department of Chemistry, College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Huilin Wan
- State Key
Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, Department of Chemistry, College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| |
Collapse
|
19
|
Bukhtiyarov AV, Prosvirin IP, Saraev AA, Klyushin AY, Knop-Gericke A, Bukhtiyarov VI. In situ formation of the active sites in Pd–Au bimetallic nanocatalysts for CO oxidation: NAP (near ambient pressure) XPS and MS study. Faraday Discuss 2018; 208:255-268. [DOI: 10.1039/c7fd00219j] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Transformation of the surface structure of HOPG-supported bimetallic Pd–Au particles in the course of CO oxidation has been demonstrated using NAP XPS and MS techniques.
Collapse
Affiliation(s)
| | - I. P. Prosvirin
- Boreskov Institute of Catalysis
- SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
| | - A. A. Saraev
- Boreskov Institute of Catalysis
- SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
| | | | | | - V. I. Bukhtiyarov
- Boreskov Institute of Catalysis
- SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
| |
Collapse
|
20
|
Kareem H, Shan S, Wu ZP, Velasco L, Moseman K, O'Brien CP, Tran DT, Lee IC, Maswadeh Y, Yang L, Mott D, Luo J, Petkov V, Zhong CJ. Catalytic oxidation of propane over palladium alloyed with gold: an assessment of the chemical and intermediate species. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01704b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface intermediate species for catalytic oxidation of propane depend strongly on the catalyst composition.
Collapse
|
21
|
Zou L, Li J, Zakharov D, Saidi WA, Stach EA, Zhou G. Atomically Visualizing Elemental Segregation-Induced Surface Alloying and Restructuring. J Phys Chem Lett 2017; 8:6035-6040. [PMID: 29193974 DOI: 10.1021/acs.jpclett.7b02947] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Using in situ transmission electron microscopy that spatially and temporally resolves the evolution of the atomic structure in the surface and subsurface regions, we find that the surface segregation of Au atoms in a Cu(Au) solid solution results in the nucleation and growth of a (2 × 1) missing-row reconstructed, half-unit-cell thick L12 Cu3Au(110) surface alloy. Our in situ electron microscopy observations and atomistic simulations demonstrate that the (2 × 1) reconstruction of the Cu3Au(110) surface alloy remains as a stable surface structure as a result of the favored Cu-Au diatom configuration.
Collapse
Affiliation(s)
- Lianfeng Zou
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York at Binghamton , Binghamton, New York 13902, United States
| | - Jonathan Li
- Department of Physics, Applied Physics and Astronomy & Materials Science and Engineering Program, State University of New York , Binghamton, New York 13902, United States
| | - Dmitri Zakharov
- Center for Functional Nanomaterials, Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Wissam A Saidi
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh , Pittsburgh, Pennsylvania 15261, United States
| | - Eric A Stach
- Center for Functional Nanomaterials, Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Guangwen Zhou
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York at Binghamton , Binghamton, New York 13902, United States
| |
Collapse
|
22
|
Teixeira-Neto AA, Gonçalves RV, Rodella CB, Rossi LM, Teixeira-Neto E. Surface composition and structural changes on titanium oxide-supported AuPd nanoparticles during CO oxidation. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00137a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalysts with the same composition but different initial morphologies showed an unexpected morphological convergence after performing the CO oxidation reaction.
Collapse
Affiliation(s)
- A. A. Teixeira-Neto
- Brazilian Nanotechnology National Laboratory (LNNano)
- Brazilian Center for Research in Energy and Materials (CNPEM)
- Campinas
- Brazil
| | - R. V. Gonçalves
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of São Paulo
- São Paulo
- Brazil
| | - C. B. Rodella
- Brazilian Synchrotron Light Laboratory (LNLS)
- Brazilian Center for Research in Energy and Materials (CNPEM)
- Campinas
- Brazil
| | - L. M. Rossi
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of São Paulo
- São Paulo
- Brazil
| | - E. Teixeira-Neto
- Brazilian Nanotechnology National Laboratory (LNNano)
- Brazilian Center for Research in Energy and Materials (CNPEM)
- Campinas
- Brazil
| |
Collapse
|
23
|
Kühn L, Herrmann AK, Rutkowski B, Oezaslan M, Nachtegaal M, Klose M, Giebeler L, Gaponik N, Eckert J, Schmidt TJ, Czyrska-Filemonowicz A, Eychmüller A. Alloying Behavior of Self-Assembled Noble Metal Nanoparticles. Chemistry 2016; 22:13446-50. [DOI: 10.1002/chem.201602487] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Laura Kühn
- Physical Chemistry; TU Dresden; Bergstr. 66b 01069 Dresden Germany
| | | | - Bogdan Rutkowski
- International Centre of Electron Microscopy for Material Science and Faculty of Metals Engineering and Industrial Computer Science; AGH University of Science and Technology Krakow; Al. Adama Mickiewicza 30 30-059 Krakow Poland
| | - Mehtap Oezaslan
- Paul Scherrer Institute; 5232 Villigen Switzerland
- Institute of Chemistry; Carl von Ossietzky University of Oldenburg; Carl-von-Ossietzky Str. 9-11 26111 Oldenburg Germany
| | | | - Markus Klose
- Institute for Complex Materials; IFW Dresden; PO 27 01 16 01171 Dresden Germany
| | - Lars Giebeler
- Institute for Complex Materials; IFW Dresden; PO 27 01 16 01171 Dresden Germany
| | - Nikolai Gaponik
- Physical Chemistry; TU Dresden; Bergstr. 66b 01069 Dresden Germany
| | - Jürgen Eckert
- Institute for Complex Materials; IFW Dresden; PO 27 01 16 01171 Dresden Germany
- Institute of Materials Science; TU Dresden; Helmholtzstrasse 7 01069 Dresden Germany
- Erich Schmid Institute of Materials Science; Austrian Academy of Sciences and Department Materials Physics; Montanuniversität Leoben; Jahnstrasse 12 8700 Leoben Austria
| | - Thomas J. Schmidt
- Paul Scherrer Institute; 5232 Villigen Switzerland
- Laboratory of Physical Chemistry; ETH Zürich; 8093 Zürich Switzerland
| | - Aleksandra Czyrska-Filemonowicz
- International Centre of Electron Microscopy for Material Science and Faculty of Metals Engineering and Industrial Computer Science; AGH University of Science and Technology Krakow; Al. Adama Mickiewicza 30 30-059 Krakow Poland
| | | |
Collapse
|
24
|
Zhang X, Ptasinska S. High‐Pressure‐Induced Pseudo‐oxidation of Copper Surfaces by Carbon Monoxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201600046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xueqiang Zhang
- Radiation Laboratory and Department of Chemistry and Biochemistry University of Notre Dame Notre Dame IN 46556 USA
| | - Sylwia Ptasinska
- Radiation Laboratory and Department of Physics University of Notre Dame Notre Dame IN 46556 USA
| |
Collapse
|
25
|
Tao F(F, Crozier PA. Atomic-Scale Observations of Catalyst Structures under Reaction Conditions and during Catalysis. Chem Rev 2016; 116:3487-539. [DOI: 10.1021/cr5002657] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Franklin (Feng) Tao
- Department
of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
- Department
of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Peter A. Crozier
- School
of Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
| |
Collapse
|
26
|
De Clercq A, Giorgio S, Mottet C. Pd surface and Pt subsurface segregation in Pt1-c Pd c nanoalloys. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:064006. [PMID: 26795206 DOI: 10.1088/0953-8984/28/6/064006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The structure and chemical arrangement of Pt1-c Pd c nanoalloys with the icosahedral and face centered cubic symmetry are studied using Monte Carlo simulations with a tight binding interatomic potential fitted to density-functional theory calculations. Pd surface segregation from the lowest to the highest coordinated sites is predicted by the theory together with a Pt enrichment at the subsurface, whatever the structure and the size of the nanoparticles, and which subsists when increasing the temperature. The onion-shell chemical configuration is found for both symmetries and is initiated from the Pd surface segregation. It is amplified in the icosahedral symmetry and small sizes but when considering larger sizes, the oscillating segregation profile occurs near the surface on about three to four shells whatever the structure. Pd segregation results from the significant lower cohesive energy of Pd as compared to Pt and the weak ordering tendency leads to the Pt subsurface segregation. The very weak size mismatch does not prevent the bigger atoms (Pt) from occupying subsurface sites which are in compression whereas the smaller ones (Pd) occupy the central site of the icosahedra where the compression is an order of magnitude higher.
Collapse
Affiliation(s)
- A De Clercq
- Aix Marseille Université, CNRS, CINaM UMR7325, Campus de Luminy, F-13288 Marseille, France. Aix Marseille Université, CNRS, MADIREL UMR7246, 13397 Marseille, France
| | | | | |
Collapse
|
27
|
Meunier FC. Pitfalls and benefits of in situ and operando diffuse reflectance FT-IR spectroscopy (DRIFTS) applied to catalytic reactions. REACT CHEM ENG 2016. [DOI: 10.1039/c5re00018a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The procedures and conditions that need to be fulfilled to be able to carry out appropriate in situ and operando diffuse reflectance FT-IR (DRIFTS) analyses are discussed.
Collapse
Affiliation(s)
- F. C. Meunier
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON)
- Université Lyon 1
- CNRS 2
- France
| |
Collapse
|
28
|
Derrouiche S, La Fontaine C, Thrimurtulu G, Casale S, Delannoy L, Lauron-Pernot H, Louis C. Unusual behaviour of Au/ZnO catalysts in selective hydrogenation of butadiene due to the formation of a AuZn nanoalloy. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01664a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The loss of activity observed when Au/ZnO was activated under H2 was explained by the formation of AuZn alloy.
Collapse
Affiliation(s)
- Salim Derrouiche
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| | - Camille La Fontaine
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| | - Gode Thrimurtulu
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| | - Sandra Casale
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| | - Laurent Delannoy
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| | - Hélène Lauron-Pernot
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| | - Catherine Louis
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Paris
| |
Collapse
|
29
|
Liao H, Fisher A, Xu ZJ. Surface Segregation in Bimetallic Nanoparticles: A Critical Issue in Electrocatalyst Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:3221-46. [PMID: 25823964 DOI: 10.1002/smll.201403380] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/07/2015] [Indexed: 05/23/2023]
Abstract
Bimetallic nanoparticles are a class of important electrocatalyst. They exhibit a synergistic effect that critically depends on the surface composition, which determines the surface properties and the adsorption/desorption behavior of the reactants and intermediates during catalysis. The surface composition can be varied, as nanoparticles are exposed to certain environments through surface segregation. Thermodynamically, this is caused by a difference in surface energy between the two metals. It may lead to the enrichment of one metal on the surface and the other in the core. The external conditions that influence the surface energy may lead to the variation of the thermodynamic steady state of the particle surface and, thus, offer a chance to vary the surface composition. In this review, the most recent and important progress in surface segregation of bimetallic nanoparticles and its impact in electrocatalysis are introduced. Typical segregation inducements and surface characterization techniques are discussed in detail. It is concluded that surface segregation is a critical issue when designing bimetallic catalysts. It is necessary to explore methods to control it and utilize it as a way towards producing robust, bimetallic electrocatalysts.
Collapse
Affiliation(s)
- Hanbin Liao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Energy Research Institute@NTU, ERI@NNanyang Technological University, Singapore
| | - Adrian Fisher
- Department of Chemical Engineering, Cambridge University, Cambridge, CB2 3RA, UK
| | - Zhichuan J Xu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Energy Research Institute@NTU, ERI@NNanyang Technological University, Singapore
- Solar Fuels Lab, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| |
Collapse
|
30
|
Su DS, Zhang B, Schlögl R. Electron microscopy of solid catalysts--transforming from a challenge to a toolbox. Chem Rev 2015; 115:2818-82. [PMID: 25826447 DOI: 10.1021/cr500084c] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Dang Sheng Su
- †Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,‡Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Bingsen Zhang
- †Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Robert Schlögl
- ‡Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| |
Collapse
|
31
|
Luo W, Sankar M, Beale AM, He Q, Kiely CJ, Bruijnincx PCA, Weckhuysen BM. High performing and stable supported nano-alloys for the catalytic hydrogenation of levulinic acid to γ-valerolactone. Nat Commun 2015; 6:6540. [PMID: 25779385 PMCID: PMC4382690 DOI: 10.1038/ncomms7540] [Citation(s) in RCA: 242] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 02/06/2015] [Indexed: 12/23/2022] Open
Abstract
The catalytic hydrogenation of levulinic acid, a key platform molecule in many biorefinery schemes, into γ-valerolactone is considered as one of the pivotal reactions to convert lignocellulose-based biomass into renewable fuels and chemicals. Here we report on the development of highly active, selective and stable supported metal catalysts for this reaction and on the beneficial effects of metal nano-alloying. Bimetallic random alloys of gold-palladium and ruthenium-palladium supported on titanium dioxide are prepared with a modified metal impregnation method. Gold-palladium/titanium dioxide shows a marked,~27-fold increase in activity (that is, turnover frequency of 0.1 s−1) compared with its monometallic counterparts. Although ruthenium-palladium/titanium dioxide is not only exceptionally active (that is, turnover frequency of 0.6 s−1), it shows excellent, sustained selectivity to γ-valerolactone (99%). The dilution and isolation of ruthenium by palladium is thought to be responsible for this superior catalytic performance. Alloying, furthermore, greatly improves the stability of both supported nano-alloy catalysts. The hydrogenation of leuvinic acid to γ-valerolactone is an important step in the conversion of lignocellulose to high value chemicals. Here, the authors report that bimetallic alloys are active and stable catalysts for this reaction, and attribute this to geometric and electronic effects.
Collapse
Affiliation(s)
- Wenhao Luo
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Meenakshisundaram Sankar
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Andrew M Beale
- 1] Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands [2] UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Oxfordshire OX11 0QX, UK [3] Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| | - Qian He
- Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, Pennsylvania 18015, USA
| | - Christopher J Kiely
- Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, Pennsylvania 18015, USA
| | - Pieter C A Bruijnincx
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| |
Collapse
|
32
|
Villa A, Wang D, Su DS, Prati L. New challenges in gold catalysis: bimetallic systems. Catal Sci Technol 2015. [DOI: 10.1039/c4cy00976b] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Since the discovery of the peculiar catalytic activity of gold catalysts, it became clear that gold could play a fundamental role also as a modifier.
Collapse
Affiliation(s)
- Alberto Villa
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Di Wang
- Institut für Nanotechnologie
- Karlsruher Institut für Technologie
- Germany
| | - Dang Sheng Su
- Department of Inorganic Chemistry
- Fritz Haber Institute of the Max Planck Society
- Berlin 14195
- Germany
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences
| | - Laura Prati
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| |
Collapse
|
33
|
Zhu B, Guesmi H, Creuze J, Legrand B, Mottet C. Crossover among structural motifs in Pd–Au nanoalloys. Phys Chem Chem Phys 2015; 17:28129-36. [DOI: 10.1039/c5cp00491h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The crossovers among the most abundant structural motifs (icosahedra, decahedra and truncated octahedra) of Pd–Au nanoalloys are determined theoretically in a size range between 2 and 7 nm and for three compositions equivalent to Pd3Au, PdAu and PdAu3.
Collapse
Affiliation(s)
- Beien Zhu
- CNRS-LRS
- UMR 7197
- Laboratoire de Réactivité de Surface
- Université Pierre et Marie Curie
- 75252 Paris
| | | | | | | | - Christine Mottet
- Aix Marseille Université
- CNRS
- CINAM UMR7325
- Campus de Luminy
- F-13288 Marseille
| |
Collapse
|
34
|
Zhang H, Zheng Z, Ma C, Zheng J, Zhang N, Li Y, Chen BH. Tuning Surface Properties and Catalytic Performances of Pt-Ru Bimetallic Nanoparticles by Thermal Treatment. ChemCatChem 2014. [DOI: 10.1002/cctc.201402793] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
35
|
Brodsky CN, Young AP, Ng KC, Kuo CH, Tsung CK. Electrochemically induced surface metal migration in well-defined core-shell nanoparticles and its general influence on electrocatalytic reactions. ACS NANO 2014; 8:9368-9378. [PMID: 25185075 DOI: 10.1021/nn503379w] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Bimetallic nanoparticle catalysts provide enhanced activity, as combining metals allows tuning of electronic and geometric structure, but the enhancement may vary during the reaction because the nanoparticles can undergo metal migration under catalytic reaction conditions. Using cyclic voltammetry to track the surface composition over time, we carried out a detailed study of metal migration in a well-defined model Au-Pd core-shell nanocatalyst. When subjected to electrochemical conditions, Au migration from the core to the shell was observed. The effect of Pd shell thickness and electrolyte identity on the extent of migration was studied. Migration of metals during catalytic ethanol oxidation was found to alter the particle's surface composition and electronic structure, enhancing the core-shell particles' activity. We show that metal migration in core-shell nanoparticles is a phenomenon common to numerous electrochemical systems and must be considered when studying electrochemical catalysis.
Collapse
Affiliation(s)
- Casey N Brodsky
- Department of Chemistry, Merkert Chemistry Center, Boston College , 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | | | | | | | | |
Collapse
|
36
|
Delannoy L, Thrimurthulu G, Reddy PS, Méthivier C, Nelayah J, Reddy BM, Ricolleau C, Louis C. Selective hydrogenation of butadiene over TiO2supported copper, gold and gold–copper catalysts prepared by deposition–precipitation. Phys Chem Chem Phys 2014; 16:26514-27. [DOI: 10.1039/c4cp02141j] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
37
|
Carenco S. Carbon Monoxide-Induced Dynamic Metal-Surface Nanostructuring. Chemistry 2014; 20:10616-25. [DOI: 10.1002/chem.201403140] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Indexed: 11/11/2022]
|
38
|
Moscu A, Schuurman Y, Veyre L, Thieuleux C, Meunier F. Direct evidence by in situ IR CO monitoring of the formation and the surface segregation of a Pt–Sn alloy. Chem Commun (Camb) 2014; 50:8590-2. [DOI: 10.1039/c4cc03208j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
39
|
Zhu L, Cao M, Li L, Sun H, Tang Y, Zhang N, Zheng J, Zhou H, Li Y, Yang L, Zhong CJ, Chen BH. Synthesis of Different Ruthenium Nickel Bimetallic Nanostructures and an Investigation of the Structure-Activity Relationship for Benzene Hydrogenation to Cyclohexane. ChemCatChem 2014. [DOI: 10.1002/cctc.201400096] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
40
|
Zhu B, Thrimurthulu G, Delannoy L, Louis C, Mottet C, Creuze J, Legrand B, Guesmi H. Evidence of Pd segregation and stabilization at edges of AuPd nano-clusters in the presence of CO: A combined DFT and DRIFTS study. J Catal 2013. [DOI: 10.1016/j.jcat.2013.08.022] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|