1
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Ziehl TJ, Li J, Sun S, Zhang P. New Insights into the ORR Catalysis on Pt Alloy Nanoparticles from an Element Specific d-Band Analysis. J Phys Chem Lett 2024; 15:8306-8314. [PMID: 39109518 DOI: 10.1021/acs.jpclett.4c01912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Bolstered by their unique atomic structures and tailored compositions, nanoalloys exhibit extraordinary properties making them ideal materials to solve challenges in energy storage and conversion catalysis. However, a quantitative description of the structure-property relationships using an accurate descriptor-based model for nanoalloys, ranging from bimetallic to multimetallic compositions, is needed to drive efficient material design toward high-performance catalysis. In this work, we highlight the electronic property and catalytic activity relationship from an element specific d-band analysis of Pt-based alloy catalysts using X-ray absorption near-edge spectroscopy (XANES). Using a series of L10-MPt/Pt (M = Fe, Co, Ni) core/shell alloy catalysts with well-defined atomic structures, we quantified subtle differences in the Pt d-electron states and correlated the Pt d-band structure to their superior catalytic activity toward the oxygen reduction reaction (ORR). Our analysis used the upper d-band edge position as a predictive descriptor for the mass activity toward the ORR instead of the commonly used d-band center position. Together with density functional theory calculations and Nørskov d-band theory, the upper d-band edge position for the Pt states, derived from experimental measurements, elucidates new physical insights into the ORR performance of the L10-MPt/Pt core/shell catalysts. An element specific Pt d-band analysis using XANES overcomes challenges in traditional X-ray photoelectron spectroscopy-based valence d-band analysis, which cannot distinguish signals from independent elements in nanoalloys. Thus, the insights from the element specific d-band analysis presented in this work are a promising approach to determine structure-property relationships in a variety of transition metal nanoalloys and will be useful in the design of future high-performance catalysts.
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Affiliation(s)
- Tyler Joe Ziehl
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Junrui Li
- Department of Chemistry, Clark Atlanta University, Atlanta, Georgia 30314, United States
| | - Shouheng Sun
- Department of Chemistry, Brown Universtiy, Providence, Rhode Island 02912, United States
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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2
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Xue F, Li Q, Ji W, Lv M, Xu H, Zeng J, Li T, Ren Y, Zhou L, Chen X, Deng J, Lin K, Xing X. Highly efficient semi-hydrogenation in strained ultrathin PdCu shell and the atomic deciphering for the unlocking of activity-selectivity. Chem Sci 2024; 15:11837-11846. [PMID: 39092101 PMCID: PMC11290329 DOI: 10.1039/d4sc03291h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 06/25/2024] [Indexed: 08/04/2024] Open
Abstract
Excellent ethylene selectivity in acetylene semi-hydrogenation is often obtained at the expense of activity. To break the activity-selectivity trade-off, precise control and in-depth understanding of the three-dimensional atomic structure of surfacial active sites are crucial. Here, we designed a novel Au@PdCu core-shell nanocatalyst featuring diluted and stretched Pd sites on the ultrathin shell (1.6 nm), which showed excellent reactivity and selectivity, with 100% acetylene conversion and 92.4% ethylene selectivity at 122 °C, and the corresponding activity was 3.3 times higher than that of the PdCu alloy. The atomic three-dimensional decoding for the activity-selectivity balance was revealed by combining pair distribution function (PDF) and reverse Monte Carlo simulation (RMC). The results demonstrate that a large number of active sites with a low coordination number of Pd-Pd pairs and an average 3.25% tensile strain are distributed on the surface of the nanocatalyst, which perform a pivotal function in the simultaneous improvement of hydrogenation activity and ethylene selectivity. Our work not only develops a novel strategy for unlocking the linear scaling relation in heterogeneous catalysis but also provides a paradigm for atomic 3D understanding of lattice strain in core-shell nanocatalysts.
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Affiliation(s)
- Fan Xue
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Qiang Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Weihua Ji
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
| | - Mingxin Lv
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Hankun Xu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Jianrong Zeng
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences 201204 Shanghai P. R. China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences 201800 Shanghai P. R. China
| | - Tianyi Li
- X-Ray Science Division, Argonne National Laboratory Argonne Illinois 60439 USA
| | - Yang Ren
- Department of Physics, City University of Hong Kong Kowloon Hong Kong 999077 China
| | - Lihui Zhou
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology Shanghai 200237 China
| | - Xin Chen
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Jinxia Deng
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Kun Lin
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
| | - Xianran Xing
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing Beijing 100083 China
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3
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Jeong S, Huang C, Levell Z, Skalla RX, Hong W, Escorcia NJ, Losovyj Y, Zhu B, Butrum-Griffith AN, Liu Y, Li CW, Reifsnyder Hickey D, Liu Y, Ye X. Facet-Defined Dilute Metal Alloy Nanorods for Efficient Electroreduction of CO 2 to n-Propanol. J Am Chem Soc 2024; 146:4508-4520. [PMID: 38320122 DOI: 10.1021/jacs.3c11013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Electroreduction of CO2 into liquid fuels is a compelling strategy for storing intermittent renewable energy. Here, we introduce a family of facet-defined dilute copper alloy nanocrystals as catalysts to improve the electrosynthesis of n-propanol from CO2 and H2O. We show that substituting a dilute amount of weak-CO-binding metals into the Cu(100) surface improves CO2-to-n-propanol activity and selectivity by modifying the electronic structure of catalysts to facilitate C1-C2 coupling while preserving the (100)-like 4-fold Cu ensembles which favor C1-C1 coupling. With the Au0.02Cu0.98 champion catalyst, we achieve an n-propanol Faradaic efficiency of 18.2 ± 0.3% at a low potential of -0.41 V versus the reversible hydrogen electrode and a peak production rate of 16.6 mA·cm-2. This study demonstrates that shape-controlled dilute-metal-alloy nanocrystals represent a new frontier in electrocatalyst design, and precise control of the host and minority metal distributions is crucial for elucidating structure-composition-property relationships and attaining superior catalytic performance.
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Affiliation(s)
- Soojin Jeong
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Chuanliang Huang
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Zachary Levell
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Rebecca X Skalla
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Wei Hong
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Nicole J Escorcia
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Yaroslav Losovyj
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Baixu Zhu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Alex N Butrum-Griffith
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yang Liu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Christina W Li
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Danielle Reifsnyder Hickey
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Yuanyue Liu
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Xingchen Ye
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
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4
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Rettenmaier C, Herzog A, Casari D, Rüscher M, Jeon HS, Kordus D, Luna ML, Kühl S, Hejral U, Davis EM, Chee SW, Timoshenko J, Alexander DTL, Bergmann A, Cuenya BR. Operando insights into correlating CO coverage and Cu-Au alloying with the selectivity of Au NP-decorated Cu 2O nanocubes during the electrocatalytic CO 2 reduction. EES CATALYSIS 2024; 2:311-323. [PMID: 38222061 PMCID: PMC10782806 DOI: 10.1039/d3ey00162h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/20/2023] [Indexed: 01/16/2024]
Abstract
Electrochemical reduction of CO2 (CO2RR) is an attractive technology to reintegrate the anthropogenic CO2 back into the carbon cycle driven by a suitable catalyst. This study employs highly efficient multi-carbon (C2+) producing Cu2O nanocubes (NCs) decorated with CO-selective Au nanoparticles (NPs) to investigate the correlation between a high CO surface concentration microenvironment and the catalytic performance. Structure, morphology and near-surface composition are studied via operando X-ray absorption spectroscopy and surface-enhanced Raman spectroscopy, operando high-energy X-ray diffraction as well as quasi in situ X-ray photoelectron spectroscopy. These operando studies show the continuous evolution of the local structure and chemical environment of our catalysts during reaction conditions. Along with its alloy formation, a CO-rich microenvironment as well as weakened average CO binding on the catalyst surface during CO2RR is detected. Linking these findings to the catalytic function, a complex compositional interplay between Au and Cu is revealed in which higher Au loadings primarily facilitate CO formation. Nonetheless, the strongest improvement in C2+ formation appears for the lowest Au loadings, suggesting a beneficial role of the Au-Cu atomic interaction for the catalytic function in CO2RR. This study highlights the importance of site engineering and operando investigations to unveil the electrocatalyst's adaptations to the reaction conditions, which is a prerequisite to understand its catalytic behavior.
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Affiliation(s)
- Clara Rettenmaier
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Antonia Herzog
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Daniele Casari
- Electron Spectrometry and Microscopy Laboratory (LSME), Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH-1015 Switzerland
| | - Martina Rüscher
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Hyo Sang Jeon
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - David Kordus
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Mauricio Lopez Luna
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Stefanie Kühl
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Uta Hejral
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Earl M Davis
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - See Wee Chee
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Janis Timoshenko
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Duncan T L Alexander
- Electron Spectrometry and Microscopy Laboratory (LSME), Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH-1015 Switzerland
| | - Arno Bergmann
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society Faradayweg 4-6 14195 Berlin Germany
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5
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Feng Y, Cheng Z, Larsen AKK, Shi H, Sun T, Zhang P, Dong M, Liu L. Amyloid-like nanofibrous network confined and aligned ultrafine bimetallic nanozymes for smart antibacterial therapy. Mater Today Bio 2023; 22:100730. [PMID: 37576869 PMCID: PMC10413149 DOI: 10.1016/j.mtbio.2023.100730] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Nanozyme-based antibacterial therapy (NABT) has emerged as a promising strategy to combat bacterial antimicrobial resistance. Engineering the noble metal nanozymes with strong bacterial capture and high catalytic activity for enhanced NABT is highly anticipated but still challenged. Herein, we developed hybrid nanozymes by engineering ultrafine bimetallic Au/Cu nanoparticles confined on the lysozyme amyloid-like nanofibrous networks (LNF). The introduction of copper in the nanozymes facilitates the H2O2 adsorption and reduces the energy barrier for activating the H2O2 decomposition to form •OH, meanwhile displaying the significantly enhanced POD-like activity under NIR irradiation. Taking advantage of the inherent supramolecular networks inspired from human defensin 6-trapping bacteria mechanism, the hybrid nanozymes effectively capture the bacteria and allow the catalytic attack around the bacterial surfaces to improve the antibacterial efficiency. Finally, the as-prepared nanozymes exhibit the preeminent bactericidal efficacy against bacteria, especially for drug-resistant bacteria both in vitro and in vivo, and the effect on wound healing.
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Affiliation(s)
- Yonghai Feng
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Zerui Cheng
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | | | - Hui Shi
- School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Tongtong Sun
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Peng Zhang
- Institute of Environmental Research at Greater Bay, Guangzhou University, 230 Waihuan West Road, Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center, Universitas Arhusiensis, Arhus, 8200, Denmark
| | - Lei Liu
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
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6
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Okatenko V, Loiudice A, Newton MA, Stoian DC, Blokhina A, Chen AN, Rossi K, Buonsanti R. Alloying as a Strategy to Boost the Stability of Copper Nanocatalysts during the Electrochemical CO 2 Reduction Reaction. J Am Chem Soc 2023; 145:5370-5383. [PMID: 36847799 DOI: 10.1021/jacs.2c13437] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Copper nanocatalysts are among the most promising candidates to drive the electrochemical CO2 reduction reaction (CO2RR). However, the stability of such catalysts during operation is sub-optimal, and improving this aspect of catalyst behavior remains a challenge. Here, we synthesize well-defined and tunable CuGa nanoparticles (NPs) and demonstrate that alloying Cu with Ga considerably improves the stability of the nanocatalysts. In particular, we discover that CuGa NPs containing 17 at. % Ga preserve most of their CO2RR activity for at least 20 h while Cu NPs of the same size reconstruct and lose their CO2RR activity within 2 h. Various characterization techniques, including X-ray photoelectron spectroscopy and operando X-ray absorption spectroscopy, suggest that the addition of Ga suppresses Cu oxidation at open-circuit potential (ocp) and induces significant electronic interactions between Ga and Cu. Thus, we explain the observed stabilization of the Cu by Ga as a result of the higher oxophilicity and lower electronegativity of Ga, which reduce the propensity of Cu to oxidize at ocp and enhance the bond strength in the alloyed nanocatalysts. In addition to addressing one of the major challenges in CO2RR, this study proposes a strategy to generate NPs that are stable under a reducing reaction environment.
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Affiliation(s)
- Valery Okatenko
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
| | - Anna Loiudice
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
| | - Mark A Newton
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
| | - Dragos C Stoian
- Swiss-Norwegian Beamlines, European Synchrotron Radiation Facility, 38000 Grenoble, France
| | - Anastasia Blokhina
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
| | - Alexander N Chen
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
| | - Kevin Rossi
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
| | - Raffaella Buonsanti
- Laboratory of Nanochemistry for Energy Research, Institute of Chemical Sciences and Engineering, Ecole Politechnique Fédérale de Lausanne, Sion CH-1950, Switzerland
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7
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Zheng J, Lyu Y, Huang A, Johannessen B, Cao X, Jiang SP, Wang S. Deciphering the synergy between electron localization and alloying for photoelectrochemical nitrogen reduction to ammonia. CHINESE JOURNAL OF CATALYSIS 2023. [DOI: 10.1016/s1872-2067(22)64178-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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8
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Song Z, Li J, Davis KD, Li X, Zhang J, Zhang L, Sun X. Emerging Applications of Synchrotron Radiation X-Ray Techniques in Single Atomic Catalysts. SMALL METHODS 2022; 6:e2201078. [PMID: 36207288 DOI: 10.1002/smtd.202201078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Single atom catalysts (SACs) can achieve a maximum atom utilization efficiency of 100%, which provides significantly increased active sites compared with traditional catalysts during catalytic reactions. Synchrotron radiation technology is an important characterization method for identifying single-atom catalysts. Several types of internal information, such as the coordination number, bond length and electronic structure of metals, can all be analyzed. This review will focus on the introduction of synchrotron radiation techniques and their applications in SACs. First, the fundamentals of synchrotron radiation and the corresponding techniques applied in characterization of SACs will be briefly introduced, such as X-ray absorption near edge spectroscopy and extended X-ray absorption fine structure spectroscopy and in situ techniques. The detailed information obtained from synchrotron radiation X-ray characterization is described through four routes: 1) the local environment of a specific atom; 2) the oxidation state of SACs; 3) electronic structures at different orbitals; and 4) the in situ structure modification during catalytic reaction. In addition, a systematic summary of synchrotron radiation X-ray characterization on different types of SACs (noble metals and transition metals) will be discussed.
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Affiliation(s)
- Zhongxin Song
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Junjie Li
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Kieran Doyle Davis
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Xifei Li
- Xi'an Key Laboratory of New Energy Materials and Devices, Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Jiujun Zhang
- Institute for New Energy Materials and Engineering/College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Lei Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
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9
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Hong D, Sharma A, Jiang D, Stellino E, Ishiyama T, Postorino P, Placidi E, Kon Y, Koga K. Laser Ablation Nanoarchitectonics of Au-Cu Alloys Deposited on TiO 2 Photocatalyst Films for Switchable Hydrogen Evolution from Formic Acid Dehydrogenation. ACS OMEGA 2022; 7:31260-31270. [PMID: 36092562 PMCID: PMC9453982 DOI: 10.1021/acsomega.2c03509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
The regulation of H2 evolution from formic acid dehydrogenation using recyclable photocatalyst films is an essential approach for on-demand H2 production. We have successfully generated Au-Cu nanoalloys using a laser ablation method and deposited them on TiO2 photocatalyst films (Au x Cu100-x /TiO2). The Au-Cu/TiO2 films were employed as photocatalysts for H2 production from formic acid dehydrogenation under light-emitting diode (LED) irradiation (365 nm). The highest H2 evolution rate for Au20Cu80/TiO2 is archived to 62,500 μmol h-1 g-1 per photocatalyst weight. The remarkable performance of Au20Cu80/TiO2 may account for the formation of Au-rich surfaces and the effect of Au alloying that enables Cu to sustain the metallic form on its surface. The metallic Au-Cu surface on TiO2 is vital to supply the photoexcited electrons of TiO2 to its surface for H2 evolution. The rate-determining step (RDS) is identified as the reaction of a surface-active species with protons. The results establish a practical preparation of metal alloy deposited on photocatalyst films using laser ablation to develop efficient photocatalysts.
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Affiliation(s)
- Dachao Hong
- Interdisciplinary
Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Aditya Sharma
- Interdisciplinary
Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Dianping Jiang
- Nanomaterials
Research Institute, National Institute of
Advanced Industrial Science and Technology, (AIST) 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Elena Stellino
- Physics
and Geology Department, University of Perugia, Via Alessandro Pascoli, 06123 Perugia, Italy
| | - Tomohiro Ishiyama
- Research
Institute for Energy Conservation, National
Institute of Advanced Industrial Science and Technology, (AIST) 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Paolo Postorino
- Physics
Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Ernesto Placidi
- Physics
Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Yoshihiro Kon
- Interdisciplinary
Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Kenji Koga
- Nanomaterials
Research Institute, National Institute of
Advanced Industrial Science and Technology, (AIST) 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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10
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Huang J, Sementa L, Liu Z, Barcaro G, Feng M, Liu E, Jiao L, Xu M, Leshchev D, Lee SJ, Li M, Wan C, Zhu E, Liu Y, Peng B, Duan X, Goddard WA, Fortunelli A, Jia Q, Huang Y. Experimental Sabatier plot for predictive design of active and stable Pt-alloy oxygen reduction reaction catalysts. Nat Catal 2022. [DOI: 10.1038/s41929-022-00797-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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12
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Rodrigues Fiuza TE, Santos Gonçalves D, Zanchet D. The Impact of Ceria Loading on the CuO
x
−CeO
2
Interaction and Performance of AuCu/CeO
2
−SiO
2
Catalysts in CO‐PROX Reaction. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tanna Elyn Rodrigues Fiuza
- Institute of Chemistry University of Campinas 13083-970 Campinas São Paulo Brazil
- Present address: Brazilian Nanotechnology National Laboratory (LNNano) Brazilian Center for Research in Energy and Materials (CNPEM) 13083-100 Campinas São Paulo Brazil
| | | | - Daniela Zanchet
- Institute of Chemistry University of Campinas 13083-970 Campinas São Paulo Brazil
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13
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Timoshenko J, Roldan Cuenya B. In Situ/ Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy. Chem Rev 2021; 121:882-961. [PMID: 32986414 PMCID: PMC7844833 DOI: 10.1021/acs.chemrev.0c00396] [Citation(s) in RCA: 205] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 12/18/2022]
Abstract
During the last decades, X-ray absorption spectroscopy (XAS) has become an indispensable method for probing the structure and composition of heterogeneous catalysts, revealing the nature of the active sites and establishing links between structural motifs in a catalyst, local electronic structure, and catalytic properties. Here we discuss the fundamental principles of the XAS method and describe the progress in the instrumentation and data analysis approaches undertaken for deciphering X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra. Recent usages of XAS in the field of heterogeneous catalysis, with emphasis on examples concerning electrocatalysis, will be presented. The latter is a rapidly developing field with immense industrial applications but also unique challenges in terms of the experimental characterization restrictions and advanced modeling approaches required. This review will highlight the new insight that can be gained with XAS on complex real-world electrocatalysts including their working mechanisms and the dynamic processes taking place in the course of a chemical reaction. More specifically, we will discuss applications of in situ and operando XAS to probe the catalyst's interactions with the environment (support, electrolyte, ligands, adsorbates, reaction products, and intermediates) and its structural, chemical, and electronic transformations as it adapts to the reaction conditions.
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Affiliation(s)
- Janis Timoshenko
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
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14
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Breaking the Linear Scaling Relationship by Compositional and Structural Crafting of Ternary Cu–Au/Ag Nanoframes for Electrocatalytic Ethylene Production. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Xiong L, Zhang X, Yuan H, Wang J, Yuan X, Lian Y, Jin H, Sun H, Deng Z, Wang D, Hu J, Hu H, Choi J, Li J, Chen Y, Zhong J, Guo J, Rümmerli MH, Xu L, Peng Y. Breaking the Linear Scaling Relationship by Compositional and Structural Crafting of Ternary Cu–Au/Ag Nanoframes for Electrocatalytic Ethylene Production. Angew Chem Int Ed Engl 2020; 60:2508-2518. [DOI: 10.1002/anie.202012631] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Indexed: 02/01/2023]
Affiliation(s)
- Likun Xiong
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Xiang Zhang
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Hao Yuan
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou Jiangsu P. R. China
| | - Juan Wang
- Shanghai Synchrotron Radiation Facility Shanghai Advanced, Research Institute Chinese Academy of Sciences P. R. China
| | - Xuzhou Yuan
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Yuebin Lian
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Huidong Jin
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Hao Sun
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Zhao Deng
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Dan Wang
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Jiapeng Hu
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Huimin Hu
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Jinho Choi
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Jiong Li
- Shanghai Synchrotron Radiation Facility Shanghai Advanced, Research Institute Chinese Academy of Sciences P. R. China
| | - Yufeng Chen
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou Jiangsu P. R. China
| | - Jun Zhong
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou Jiangsu P. R. China
| | - Jun Guo
- Analysis and Testing Center Soochow University Suzhou Jiangsu P. R. China
| | - Mark H. Rümmerli
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
| | - Lai Xu
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou Jiangsu P. R. China
| | - Yang Peng
- Soochow Institute for Energy and Material Innovations (SIEMIS) College of Energy Soochow University P. R. China
- Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou Jiangsu P. R. China
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16
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Schade OR, Stein F, Reichenberger S, Gaur A, Saraҫi E, Barcikowski S, Grunwaldt J. Selective Aerobic Oxidation of 5‐(Hydroxymethyl)furfural over Heterogeneous Silver‐Gold Nanoparticle Catalysts. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001003] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Oliver R. Schade
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe Germany 44820
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) 76344 Eggenstein-Leopoldshafen Germany
| | - Frederic Stein
- Technical Chemistry I University of Duisburg-Essen 45141 Essen Germany
- Center for Nanointegration Duisburg-Essen (CENIDE) University of Duisburg-Essen 47057 Duisburg Germany
| | - Sven Reichenberger
- Technical Chemistry I University of Duisburg-Essen 45141 Essen Germany
- Center for Nanointegration Duisburg-Essen (CENIDE) University of Duisburg-Essen 47057 Duisburg Germany
| | - Abhijeet Gaur
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe Germany 44820
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) 76344 Eggenstein-Leopoldshafen Germany
| | - Erisa Saraҫi
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe Germany 44820
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) 76344 Eggenstein-Leopoldshafen Germany
| | - Stephan Barcikowski
- Technical Chemistry I University of Duisburg-Essen 45141 Essen Germany
- Center for Nanointegration Duisburg-Essen (CENIDE) University of Duisburg-Essen 47057 Duisburg Germany
| | - Jan‐Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe Germany 44820
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) 76344 Eggenstein-Leopoldshafen Germany
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17
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Kim J, Song JT, Oh J. Facile electrochemical synthesis of dilute AuCu alloy nanostructures for selective and long-term stable CO2 electrolysis. J Chem Phys 2020; 153:054702. [DOI: 10.1063/5.0009340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Jaehoon Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Jun Tae Song
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (I2CNER), Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Jihun Oh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, South Korea
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18
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Li C, Liu Q, Boscoboinik JA, Zhou G. Tuning the surface composition of Cu 3Au binary alloy. Phys Chem Chem Phys 2020; 22:3379-3389. [PMID: 31976989 DOI: 10.1039/c9cp05729c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Using ambient-pressure X-ray photoelectron spectroscopy, here we report the real-time monitoring of dynamic surface composition evolution of Cu3Au(100) in response to the imposed environmental stimuli. Segregation of Au to the pristine surface under ultrahigh vacuum annealing leads to the phase separation with pure Au at the surface and alloyed Au in the subsurface. Upon switching to an oxidizing atmosphere, oxygen adsorption drives the surface segregation of Cu along with inward migration of pure Au to the subsurface. Switching to a H2 atmosphere results in oxygen loss from the oxygenated surface, thereby promoting Au surface segregation and reverting the surface to the pristine state with the Au termination. These measurements demonstrated the tunability of the surface composition of the binary alloy by utilizing the interplay between the tendency of segregating a more noble constituent to the surface and the tendency to segregate the more reactive one with the chemical stimuli.
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Affiliation(s)
- Chaoran Li
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York at Binghamton, Binghamton, New York 13902, USA.
| | - Qianqian Liu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York at Binghamton, Binghamton, New York 13902, USA.
| | | | - Guangwen Zhou
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York at Binghamton, Binghamton, New York 13902, USA.
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19
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Ma X, Shen Y, Yao S, Shu M, Si R, An C. Self-Supported Nanoporous Au 3 Cu Electrode with Enriched Gold on Surface for Efficient Electrochemical Reduction of CO 2. Chemistry 2019; 26:4143-4149. [PMID: 31800117 DOI: 10.1002/chem.201904619] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Indexed: 11/11/2022]
Abstract
The key to the electrochemical conversion of CO2 lies in the development of efficient electrocatalysts with ease of operation, good conductivity, and rich active sites that fulfil the desired reaction direction and selectivity. Herein, an oxidative etching of Au20 Cu80 alloy is used for the synthesis of a nanoporous Au3 Cu alloy, representing a facile strategy for tuning the surface electronic properties and altering the adsorption behavior of the intermediates. HRTEM, XPS, and EXAFS results reveal that the curved surface of the synthesized nanoporous Au3 Cu is rich in gold with unsaturated coordination conditions. It can be used directly as a self-supported electrode for CO2 reduction, and exhibits high Faradaic efficiency (FE) of 98.12 % toward CO at a potential of -0.7 V versus the reversible hydrogen electrode (RHE). The FE is 1.47 times that over the as-made single nanoporous Au. Density functional theory reveals that *CO has a relatively long distance on the surface of nanoporous Au3 Cu, making desorption of CO easier and avoiding CO poisoning. The Hirshfeld charge distribution shows that the Au atoms have a negative charge and the Cu atoms exhibit a positive charge, which separately bond to the C atom and O atom in the *COOH intermediate through a bidentate mode. This affords the lowest *COOH adsorption free energy and low desorption energy for CO molecules.
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Affiliation(s)
- Xiaoming Ma
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of, Advanced Functional Porous Materials, Institute for, New Energy Materials & Low-Carbon Technologies, Tianjin University of Technology, Tianjin, 300384, China
| | - Yongli Shen
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of, Advanced Functional Porous Materials, Institute for, New Energy Materials & Low-Carbon Technologies, Tianjin University of Technology, Tianjin, 300384, China
| | - Shuang Yao
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of, Advanced Functional Porous Materials, Institute for, New Energy Materials & Low-Carbon Technologies, Tianjin University of Technology, Tianjin, 300384, China
| | - Miao Shu
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Changhua An
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of, Advanced Functional Porous Materials, Institute for, New Energy Materials & Low-Carbon Technologies, Tianjin University of Technology, Tianjin, 300384, China
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20
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Vasileff A, Zhi X, Xu C, Ge L, Jiao Y, Zheng Y, Qiao SZ. Selectivity Control for Electrochemical CO2 Reduction by Charge Redistribution on the Surface of Copper Alloys. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02312] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anthony Vasileff
- Center for Materials in Energy and Catalysis, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Xing Zhi
- Center for Materials in Energy and Catalysis, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Chaochen Xu
- Center for Materials in Energy and Catalysis, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Lei Ge
- Centre for Future Materials, University of Southern Queensland, Springfield Central, Queensland 4300, Australia
| | - Yan Jiao
- Center for Materials in Energy and Catalysis, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Yao Zheng
- Center for Materials in Energy and Catalysis, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shi-Zhang Qiao
- Center for Materials in Energy and Catalysis, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
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21
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Bukhtiyarov AV, Prosvirin IP, Chetyrin IA, Bukhtiyarov VI. Using Sr-XPS to Study the Preparation Features of M-Au/HOPG Model Catalysts (M = Pd, Ag, Cu). J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619010062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Destro P, Cantaneo DA, Meira DM, dos Santos Honório G, da Costa LS, Bueno JMC, Zanchet D. Formation of Bimetallic Copper–Gold Alloy Nanoparticles Probed by in Situ X‐ray Absorption Fine Structure Spectroscopy. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Priscila Destro
- Institute of Chemistry University of Campinas P.O. Box 6154 13083‐970 Campinas SP Brazil
| | | | - Débora M. Meira
- Department of Chemical Engineering Federal University of São Carlos P.O. Box 676 13565‐905 São Carlos SP Brazil
| | | | - Luelc Souza da Costa
- Institute of Chemistry University of Campinas P.O. Box 6154 13083‐970 Campinas SP Brazil
| | - José Maria C. Bueno
- Department of Chemical Engineering Federal University of São Carlos P.O. Box 676 13565‐905 São Carlos SP Brazil
| | - Daniela Zanchet
- Institute of Chemistry University of Campinas P.O. Box 6154 13083‐970 Campinas SP Brazil
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23
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Structure and Reactivity of Cu-doped Au(111) Surfaces. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2018. [DOI: 10.1380/ejssnt.2018.163] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Sahoo SR, Ramacharyulu PVRK, Ke SC. Impact of Nonideal Nanoparticles on X-ray Photoelectron Spectroscopic Quantitation: An Investigation Using Simulation and Modeling of Gold Nanoparticles. Anal Chem 2018; 90:1621-1627. [PMID: 29332393 DOI: 10.1021/acs.analchem.7b02837] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Quantitative X-ray photoelectron spectroscopic (XPS) analysis combined with spectral modeling of photoelectrons can be valuable while investigating the surface chemistry of nanoparticles (NPs) with different morphologies. Herein, with the use of NIST Simulation of Electron Spectra for Surface Analysis (SESSA), a comparative analysis of experimental and simulated photoelectron peak intensities in gold nanoparticles (AuNPs) of different morphologies is presented. Three sets of supported AuNPs with different morphologies were selected from a series of as synthesized Au-TiO2 catalyst samples. Using transmission electron microscopy (TEM) analyzed morphological information on the AuNPs as input model parameters in SESSA, XPS spectra were generated from the respective input NP morphologies. A degree of greater mismatch between SESSA simulated and experimental XPS spectra was observed while using the TEM obtained average diameter of the nanoparticles. The degree of mismatch lowered when the true nonspherical shape of the nanoparticles as obtained from TEM images was taken into account for the simulation. This demonstrates the impact of surface morphology on the XPS peak intensities which needs to be incorporated to obtain precise quantified information from the supported nanoparticles. This work demonstrates the applicability of SESSA in combination with experimental XPS and TEM measurements for precise quantification of XPS spectra from complex, nonideal shaped nanoparticles. This study can be extended to include a broad range of nanoparticles with ideal or nonideal geometries, thus providing a simple method to utilize quantitative XPS analysis to a wide range of nanomaterials.
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Affiliation(s)
- Smruti R Sahoo
- Department of Physics, National Dong Hwa University , Hualien 97401, Taiwan
| | | | - Shyue-Chu Ke
- Department of Physics, National Dong Hwa University , Hualien 97401, Taiwan
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25
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Destro P, Kokumai TM, Scarpellini A, Pasquale L, Manna L, Colombo M, Zanchet D. The Crucial Role of the Support in the Transformations of Bimetallic Nanoparticles and Catalytic Performance. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03685] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Priscila Destro
- Institute
of Chemistry, University of Campinas, P.O. Box 6154, Campinas-SP 13083-970, Brazil
| | - Tathiana M. Kokumai
- Institute
of Chemistry, University of Campinas, P.O. Box 6154, Campinas-SP 13083-970, Brazil
| | | | - Lea Pasquale
- Dipartimento
di Chimica e Chimica Industriale, Università di Genova, Via Dodecaneso
31, Genova 16146 Italy
| | | | | | - Daniela Zanchet
- Institute
of Chemistry, University of Campinas, P.O. Box 6154, Campinas-SP 13083-970, Brazil
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26
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Ishida R, Hayashi S, Yamazoe S, Kato K, Tsukuda T. Hydrogen-Mediated Electron Doping of Gold Clusters As Revealed by In Situ X-ray and UV-vis Absorption Spectroscopy. J Phys Chem Lett 2017; 8:2368-2372. [PMID: 28459582 DOI: 10.1021/acs.jpclett.7b00722] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We previously reported that small (∼1.2 nm) gold clusters stabilized by poly(N-vinyl-2-pyrrolidone) (Au:PVP) exhibited a localized surface plasmon resonance (LSPR) band at ∼520 nm in the presence of NaBH4. To reveal the mechanism of this phenomenon, the electronic structure of Au:PVP during the reaction with NaBH4 in air was examined by means of in situ X-ray absorption spectroscopy at Au L3-edge and UV-vis spectroscopy. These measurements indicated that the appearance of the LSPR band is not associated with the growth in size but is ascribed to electron doping to the Au sp band by the adsorbed H atoms.
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Affiliation(s)
- Ryo Ishida
- Department of Chemistry, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shun Hayashi
- Department of Chemistry, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Seiji Yamazoe
- Department of Chemistry, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University , Katsura, Kyoto 615-8520, Japan
| | - Kazuo Kato
- Japan Synchrotron Radiation Research Institute , SPring-8, 1-1-1 Koto, Sayo, Hyogo 679-5198, Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University , Katsura, Kyoto 615-8520, Japan
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27
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Mistry H, Reske R, Strasser P, Roldan Cuenya B. Size-dependent reactivity of gold-copper bimetallic nanoparticles during CO2 electroreduction. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.09.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Najafishirtari S, Kokumai TM, Marras S, Destro P, Prato M, Scarpellini A, Brescia R, Lak A, Pellegrino T, Zanchet D, Manna L, Colombo M. Dumbbell-like Au 0.5Cu 0.5@Fe 3O 4 Nanocrystals: Synthesis, Characterization, and Catalytic Activity in CO Oxidation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28624-28632. [PMID: 27723286 DOI: 10.1021/acsami.6b09813] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We report the colloidal synthesis of dumbbell-like Au0.5Cu0.5@Fe3O4 nanocrystals (AuCu@FeOx NCs) and the study of their properties in the CO oxidation reaction. To this aim, the as-prepared NCs were deposited on γ-alumina and pretreated in an oxidizing environment to remove the organic ligands. A comparison of these NCs with bulk Fe3O4-supported AuCu NCs showed that the nanosized support was far more effective in preventing the sintering of the metal domains, leading thus to a superior catalytic activity. Nanosizing of the support could be thus an effective, general strategy to improve the thermal stability of metallic NCs. On the other hand, the support size did not affect the chemical transformations experienced by the AuCu NCs during the activation step. Independently from the support size, we observed indeed the segregation of Cu from the alloy phase under oxidative conditions as well as the possible incorporation of the Cu atoms in the iron oxide domain.
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Affiliation(s)
- Sharif Najafishirtari
- Dipartimento di Chimica e Chimica Industriale, Università di Genova , via Dodecaneso 31-I, 16146 Genova, Italy
| | - Tathiana Midori Kokumai
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, São Paulo, Brazil
| | | | - Priscila Destro
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, São Paulo, Brazil
| | | | | | | | | | | | - Daniela Zanchet
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, São Paulo, Brazil
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29
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Wang X, Zhang L, Gong H, Zhu Y, Zhao H, Fu Y. Dealloyed PtAuCu electrocatalyst to improve the activity and stability towards both oxygen reduction and methanol oxidation reactions. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.07.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Wang D, Liu S, Wang J, Lin R, Kawasaki M, Rus E, Silberstein KE, Lowe MA, Lin F, Nordlund D, Liu H, Muller DA, Xin HL, Abruña HD. Spontaneous incorporation of gold in palladium-based ternary nanoparticles makes durable electrocatalysts for oxygen reduction reaction. Nat Commun 2016; 7:11941. [PMID: 27336795 PMCID: PMC4931015 DOI: 10.1038/ncomms11941] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 05/13/2016] [Indexed: 12/22/2022] Open
Abstract
Replacing platinum by a less precious metal such as palladium, is highly desirable for lowering the cost of fuel-cell electrocatalysts. However, the instability of palladium in the harsh environment of fuel-cell cathodes renders its commercial future bleak. Here we show that by incorporating trace amounts of gold in palladium-based ternary (Pd6CoCu) nanocatalysts, the durability of the catalysts improves markedly. Using aberration-corrected analytical transmission electron microscopy in conjunction with synchrotron X-ray absorption spectroscopy, we show that gold not only galvanically replaces cobalt and copper on the surface, but also penetrates through the Pd–Co–Cu lattice and distributes uniformly within the particles. The uniform incorporation of Au provides a stability boost to the entire host particle, from the surface to the interior. The spontaneous replacement method we have developed is scalable and commercially viable. This work may provide new insight for the large-scale production of non-platinum electrocatalysts for fuel-cell applications. Replacement of platinum is important for lowering the cost of fuel-cell electrocatalysts, but less precious alternatives such as palladium are hindered by lower durability. Here, the authors show that incorporation of trace amounts of gold improves the durability of palladium based oxygen reduction catalysts.
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Affiliation(s)
- Deli Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Sufen Liu
- Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jie Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ruoqian Lin
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | | | - Eric Rus
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Katharine E Silberstein
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Michael A Lowe
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
| | - Feng Lin
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Hongfang Liu
- Key laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - David A Muller
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.,Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York 14853, USA
| | - Huolin L Xin
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Héctor D Abruña
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA
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31
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Chenakin SP, Kruse N. Au 4f spin–orbit coupling effects in supported gold nanoparticles. Phys Chem Chem Phys 2016; 18:22778-82. [DOI: 10.1039/c6cp03362h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We reveal that the ratio of spin–orbit components in X-ray photoelectron Au 4f spectra of titania-supported gold nanoparticles deviates from the statistical ratio 4 : 3 and demonstrates an appreciable dependence on the concentration of Au atoms on the surface of TiO2 support and size of Au nanoparticles.
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Affiliation(s)
- Sergey P. Chenakin
- Chimie-Physique des Matériaux
- Université Libre de Bruxelles (ULB)
- Bruxelles
- Belgium
- G.V. Kurdyumov Institute for Metal Physics NASU
| | - Norbert Kruse
- Chimie-Physique des Matériaux
- Université Libre de Bruxelles (ULB)
- Bruxelles
- Belgium
- Voiland School of Chemical Engineering and Bioengineering
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32
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Miao YX, Shi L, Sun Q, Li WC. A highly efficient potassium-treated Au–Cu/Al2O3 catalyst for the preferential oxidation of carbon monoxide. RSC Adv 2016. [DOI: 10.1039/c5ra21119k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel potassium-treated Au–Cu bimetallic nanoparticles as a highly active and selective catalyst for CO-PROX.
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Affiliation(s)
- Yu-Xin Miao
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Lei Shi
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Qiang Sun
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Wen-Cui Li
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
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33
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Zhang N, Chen X, Lu Y, An L, Li X, Xia D, Zhang Z, Li J. Nano-intermetallic AuCu₃ catalyst for oxygen reduction reaction: performance and mechanism. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:2662-2669. [PMID: 24678060 DOI: 10.1002/smll.201400068] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 02/12/2014] [Indexed: 06/03/2023]
Abstract
This paper introduces a new approach for catalyst design using the non-precious metal Cu as one of the catalytic active centers. This differs from previous studies that considered precious metals to be responsible for the catalytic reaction in precious alloys. Intermetallic AuCu3/C nanoparticles with a diameter of 3 nm were developed for the first time, with uniform dispersion and a narrow size distribution. The ca. 3 nm as-synthesised AuCu3/C showed superior catalytic performance for oxygen reduction reactions (ORR) in alkaline solutions, with comparable half-wave potential and 1.5 times mass current density of commercial Pt/C at 0.80 V (vs. reversible hydrogen electrode (RHE)). The advanced catalytic activities are mainly attributed to the synergetic effects of electro-active atomic Au and Cu on the particle surface, in which Cu helps to activate the O2 molecule and Au benefits OH(-) desorption. The excellent durability and methanol tolerance exhibited in alkaline solutions provide another advantage for AuCu3/C to be considered as a potential alternative cathode catalyst in alkaline fuel cells.
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Affiliation(s)
- Nanlin Zhang
- College of Engineering, Peking University, Beijing, 100871, China
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34
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Yamauchi M, Okubo K, Tsukuda T, Kato K, Takata M, Takeda S. Hydrogen-induced structural transformation of AuCu nanoalloys probed by synchrotron X-ray diffraction techniques. NANOSCALE 2014; 6:4067-4071. [PMID: 24608274 DOI: 10.1039/c3nr06327e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In situ X-ray diffraction measurements reveal that the transformation of a AuCu nanoalloy from a face-centered-cubic to an L10 structure is accelerated under a hydrogen atmosphere. The structural transformation rate for the AuCu nanoalloy under hydrogen above 433 K was found to be 100 times faster than that in a vacuum, which is the first quantitative observation of hydrogen-induced ordering of nanoalloys.
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Affiliation(s)
- M Yamauchi
- WPI-I2CNER, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
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35
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Yao H, Kobayashi R. Chiral monolayer-protected Au–Pd bimetallic nanoclusters: Effect of palladium doping on their chiroptical responses. J Colloid Interface Sci 2014; 419:1-8. [DOI: 10.1016/j.jcis.2013.12.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/18/2013] [Accepted: 12/19/2013] [Indexed: 11/16/2022]
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36
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Zhou C, Jiang X, Yang L, Yin Y, Jin M. Low-temperature carbon monoxide oxidation with Au-Cu meatball-like cages prepared by galvanic replacement. CHEMSUSCHEM 2013; 6:1883-1887. [PMID: 24000238 DOI: 10.1002/cssc.201300401] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 06/27/2013] [Indexed: 06/02/2023]
Affiliation(s)
- Changjiang Zhou
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131
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37
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Sun S, Zhang G, Gauquelin N, Chen N, Zhou J, Yang S, Chen W, Meng X, Geng D, Banis MN, Li R, Ye S, Knights S, Botton GA, Sham TK, Sun X. Single-atom Catalysis Using Pt/Graphene Achieved through Atomic Layer Deposition. Sci Rep 2013. [PMCID: PMC3642722 DOI: 10.1038/srep01775] [Citation(s) in RCA: 387] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Platinum-nanoparticle-based catalysts are widely used in many important chemical processes and automobile industries. Downsizing catalyst nanoparticles to single atoms is highly desirable to maximize their use efficiency, however, very challenging. Here we report a practical synthesis for isolated single Pt atoms anchored to graphene nanosheet using the atomic layer deposition (ALD) technique. ALD offers the capability of precise control of catalyst size span from single atom, subnanometer cluster to nanoparticle. The single-atom catalysts exhibit significantly improved catalytic activity (up to 10 times) over that of the state-of-the-art commercial Pt/C catalyst. X-ray absorption fine structure (XAFS) analyses reveal that the low-coordination and partially unoccupied densities of states of 5d orbital of Pt atoms are responsible for the excellent performance. This work is anticipated to form the basis for the exploration of a next generation of highly efficient single-atom catalysts for various applications.
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38
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Wang GS, Delczeg-Czirjak EK, Hu QM, Kokko K, Johansson B, Vitos L. The effect of long-range order on the elastic properties of Cu3Au. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2013; 25:085401. [PMID: 23360774 DOI: 10.1088/0953-8984/25/8/085401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Ab initio calculations, based on the exact muffin-tin orbitals method are used to determine the elastic properties of Cu-Au alloys with Au/Cu ratio 1/3. The compositional disorder is treated within the coherent potential approximation. The lattice parameters and single-crystal elastic constants are calculated for different partially ordered structures ranging from the fully ordered L1(2) to the random face centered cubic lattice. It is shown that the theoretical elastic constants follow a clear trend with the degree of chemical order: namely, C(11) and C(12) decrease, whereas C(44) remains nearly constant with increasing disorder. The present results are in line with the experimental findings that the impact of the chemical ordering on the fundamental elastic parameters is close to the resolution of the available experimental and theoretical tools.
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Affiliation(s)
- Gui-Sheng Wang
- Applied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology, Stockholm SE-100 44, Sweden.
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39
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Altass H, Carley AF, Davies PR, Davies RJ. Enhancing surface reactivity with a noble metal. Chem Commun (Camb) 2013; 49:8223-5. [DOI: 10.1039/c3cc43567a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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40
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Albonetti S, Pasini T, Lolli A, Blosi M, Piccinini M, Dimitratos N, Lopez-Sanchez JA, Morgan DJ, Carley AF, Hutchings GJ, Cavani F. Selective oxidation of 5-hydroxymethyl-2-furfural over TiO2-supported gold–copper catalysts prepared from preformed nanoparticles: Effect of Au/Cu ratio. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.05.039] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Maenosono S, Lee J, Dao ATN, Mott D. Peak shape analysis of Ag 3d core-level X-ray photoelectron spectra of Au@Ag core-shell nanoparticles using an asymmetric Gaussian-Lorentzian mixed function. SURF INTERFACE ANAL 2012. [DOI: 10.1002/sia.5078] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shinya Maenosono
- School of Materials Science; Japan Advanced Institute of Science and Technology (JAIST); 1-1 Asahidai, Nomi; Ishikawa; 923-1292; Japan
| | - JaeDong Lee
- School of Materials Science; Japan Advanced Institute of Science and Technology (JAIST); 1-1 Asahidai, Nomi; Ishikawa; 923-1292; Japan
| | - Anh Thi Ngoc Dao
- School of Materials Science; Japan Advanced Institute of Science and Technology (JAIST); 1-1 Asahidai, Nomi; Ishikawa; 923-1292; Japan
| | - Derrick Mott
- School of Materials Science; Japan Advanced Institute of Science and Technology (JAIST); 1-1 Asahidai, Nomi; Ishikawa; 923-1292; Japan
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42
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Suzuki M, Kawamura N, Miyagawa H, Garitaonandia JS, Yamamoto Y, Hori H. Measurement of a pauli and orbital paramagnetic state in bulk gold using x-ray magnetic circular dichroism spectroscopy. PHYSICAL REVIEW LETTERS 2012; 108:047201. [PMID: 22400883 DOI: 10.1103/physrevlett.108.047201] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Indexed: 05/31/2023]
Abstract
We show that bulk gold (Au) exhibits temperature-independent paramagnetism in an external magnetic field by x-ray magnetic circular dichroism spectroscopy at the Au L(2) and L(3) edges. Using the sum-rule analysis, we obtained a magnetic moment of 1.3 × 10(-4) μB/atom in an external magnetic field of 10 T and a paramagnetic susceptibility of 8.9 × 10(-6) for the 5d orbit. The induced paramagnetism in bulk Au is characterized by a large (≈ 30%) orbital contribution. This orbital component was retained even when Au atoms formed nanoparticles, playing an important role in stabilizing the spontaneous spin polarization in the Au nanoparticles.
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Affiliation(s)
- Motohiro Suzuki
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan.
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43
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Anomalous Oxidation Resistance of “Core-Only” Copper Nanoparticles Electrochemically Grown on Gold Nanoislands Prefunctionalized by 1,4-phenylene Diisocyanide. ACTA ACUST UNITED AC 2012. [DOI: 10.1149/2.006205esl] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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44
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The Study of Chiral Adsorption Systems Using Synchrotron-Based Structural and Spectroscopic Techniques: Stereospecific Adsorption of Serine on Au-Modified Chiral Cu{531} Surfaces. Top Catal 2011. [DOI: 10.1007/s11244-011-9757-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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45
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Bauer JC, Mullins D, Li M, Wu Z, Payzant EA, Overbury SH, Dai S. Synthesis of silica supported AuCu nanoparticle catalysts and the effects of pretreatment conditions for the CO oxidation reaction. Phys Chem Chem Phys 2011; 13:2571-81. [DOI: 10.1039/c0cp01859g] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Wu X, Cai W, Shao X. Optimization of bimetallic Cu-Au and Ag-Au clusters by using a modified adaptive immune optimization algorithm. J Comput Chem 2009; 30:1992-2000. [DOI: 10.1002/jcc.21197] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Lim DC, Lopez-Salido I, Dietsche R, Bubek M, Kim YD. Electronic and chemical properties of supported Au nanoparticles. Chem Phys 2006. [DOI: 10.1016/j.chemphys.2006.09.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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Rogalev A, Wilhelm F, Jaouen N, Goulon J, Kappler JP. X-ray Magnetic Circular Dichroism: Historical Perspective and Recent Highlights. MAGNETISM: A SYNCHROTRON RADIATION APPROACH 2006. [DOI: 10.1007/3-540-33242-1_4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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49
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Nabika H, Mizuhata M, Kajinami A, Deki S, Akamatsu K. Preparation and characterization of Au/Co nano-alloys. J Electroanal Chem (Lausanne) 2003. [DOI: 10.1016/s0022-0728(03)00054-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Magagnin L, Maboudian R, Carraro C. Gold Deposition by Galvanic Displacement on Semiconductor Surfaces: Effect of Substrate on Adhesion. J Phys Chem B 2001. [DOI: 10.1021/jp013396p] [Citation(s) in RCA: 132] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Magagnin
- Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| | - R. Maboudian
- Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
| | - C. Carraro
- Department of Chemical Engineering, University of California, Berkeley, California 94720-1462
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