1
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Zhang J, Song Y, Liu W, Zheng Q, Liu Y, Wu T, Li T. Enhancing the acidic oxygen evolution reaction performance of RuO 2-TiO 2by a reduction-oxidation process. NANOTECHNOLOGY 2024; 35:345703. [PMID: 38788702 DOI: 10.1088/1361-6528/ad501d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/24/2024] [Indexed: 05/26/2024]
Abstract
As a promising alternative to Ir based acidic oxygen evolution reaction (OER) catalysts, Ru suffers from severe fading issues. Supporting it on robust oxides such as TiO2is a simple and effective way to enhance its lifetime. Here, we find that a simple reduction-oxidation process can further improve both activity and stability of RuO2-TiO2composites at high potentials. In this process, the degree of oxidation was carefully controlled to form Ru/RuO2heterostructure to improve OER activity. Moreover, due to the oxophilicity difference of Ru and Ti, the structure of catalysts was changed from supported to embedded, which enhanced the protective effect of TiO2and mitigated the dissolution of Ru element in acidic electrolyte, making as-prepared Ru/RuO2-TiO2with better durability at all tested potentials.
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Affiliation(s)
- Jianjun Zhang
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yi Song
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Wenwei Liu
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Quan Zheng
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yu Liu
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Tianli Wu
- School of Future Technology, Henan University, Kaifeng 475004, People's Republic of China
| | - Tao Li
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, People's Republic of China
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2
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Zhao S, Hung SF, Deng L, Zeng WJ, Xiao T, Li S, Kuo CH, Chen HY, Hu F, Peng S. Constructing regulable supports via non-stoichiometric engineering to stabilize ruthenium nanoparticles for enhanced pH-universal water splitting. Nat Commun 2024; 15:2728. [PMID: 38553434 PMCID: PMC10980754 DOI: 10.1038/s41467-024-46750-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/06/2024] [Indexed: 04/02/2024] Open
Abstract
Establishing appropriate metal-support interactions is imperative for acquiring efficient and corrosion-resistant catalysts for water splitting. Herein, the interaction mechanism between Ru nanoparticles and a series of titanium oxides, including TiO, Ti4O7 and TiO2, designed via facile non-stoichiometric engineering is systematically studied. Ti4O7, with the unique band structure, high conductivity and chemical stability, endows with ingenious metal-support interaction through interfacial Ti-O-Ru units, which stabilizes Ru species during OER and triggers hydrogen spillover to accelerate HER kinetics. As expected, Ru/Ti4O7 displays ultralow overpotentials of 8 mV and 150 mV for HER and OER with a long operation of 500 h at 10 mA cm-2 in acidic media, which is expanded in pH-universal environments. Benefitting from the excellent bifunctional performance, the proton exchange membrane and anion exchange membrane electrolyzer assembled with Ru/Ti4O7 achieves superior performance and robust operation. The work paves the way for efficient energy conversion devices.
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Affiliation(s)
- Sheng Zhao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Sung-Fu Hung
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Liming Deng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Wen-Jing Zeng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Tian Xiao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Shaoxiong Li
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Chun-Han Kuo
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Han-Yi Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Feng Hu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Shengjie Peng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
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3
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Wei W, Guo F, Wang C, Wang L, Sheng Z, Wu X, Cai B, Eychmüller A. Strain Effects in Ru-Au Bimetallic Aerogels Boost Electrocatalytic Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310603. [PMID: 38279621 DOI: 10.1002/smll.202310603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/27/2023] [Indexed: 01/28/2024]
Abstract
To improve the sluggish kinetics of the hydrogen evolution reaction (HER), a key component in water-splitting applications, there is an urgent desire to develop efficient, cost-effective, and stable electrocatalysts. Strain engineering is proving an efficient strategy for increasing the catalytic activity of electrocatalysts. This work presents the development of Ru-Au bimetallic aerogels by a simple one-step in situ reduction-gelation approach, which exhibits strain effects and electron transfer to create a remarkable HER activity and stability in an alkaline environment. The surface strain induced by the bimetallic segregated structure shifts the d-band center downward, enhancing catalysis by balancing the processes of water dissociation, OH* adsorption, and H* adsorption. Specifically, the optimized catalyst shows low overpotentials of only 24.1 mV at a current density of 10 mA cm-2 in alkaline electrolytes, surpassing commercial Pt/C. This study can contribute to the understanding of strain engineering in bimetallic electrocatalysts for HER at the atomic scale.
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Affiliation(s)
- Wei Wei
- School of Chemistry and Chemical Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang, 212013, China
- Physical Chemistry, Technische Universität Dresden, Zellescher Weg 19, 01069, Dresden, Germany
| | - Fei Guo
- School of Chemistry and Chemical Engineering, Public Experiment and Service Center, Jiangsu University, Xuefu Road 301, Zhenjiang, 212013, China
| | - Cui Wang
- Physical Chemistry, Technische Universität Dresden, Zellescher Weg 19, 01069, Dresden, Germany
| | - Lingwei Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Zhizhi Sheng
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xiaodong Wu
- College of Materials Science and Engineering, Nanjing Tech University, Puzhu South Road 30, Nanjing, 210009, China
| | - Bin Cai
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Alexander Eychmüller
- Physical Chemistry, Technische Universität Dresden, Zellescher Weg 19, 01069, Dresden, Germany
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4
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Cao Z, Wang C, Sun Y, Liu M, Li W, Zhang J, Fu Y. A Ru/RuO 2 heterostructure boosting electrochemistry-assisted selective benzoic acid hydrogenation. Chem Sci 2024; 15:1384-1392. [PMID: 38274064 PMCID: PMC10806790 DOI: 10.1039/d3sc05312a] [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: 10/08/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
Electrocatalytic hydrogenation of benzoic acid (BA) to cyclohexanecarboxylic acid (CCA) at ambient temperature and pressure has been recognized as a promising alternative to thermal hydrogenation since water is required as the hydrogen source. So far, only a few Pt-based electrocatalysts have been developed in acidic electrolyte. To overcome the limitations of reactant solubility and catalyst corrosion, herein, carbon fiber-supported Ru electrocatalysts with abundant Ru/RuO2 heterojunctions were fabricated via cyclic electrodeposition between -0.8 and 1.1 V vs. Ag/AgCl. In an alkaline environment, a Ru/RuO2 catalyst achieves an excellent ECH reactivity in terms of high BA conversion (100%) and selectivity towards CCA (100%) within 180 min at a current density of 200/3 mA cm-2, showing exceptional reusability and long-term stability. 1-Cyclohexenecarboxylic acid (CEA) was identified as the reaction intermediate, whose the selectivity is governed by the applied potential. Kinetic studies demonstrate that ECH of BA over Ru/RuO2 follows a Langmuir-Hinshelwood (L-H) mechanism. In situ Raman spectroscopy and theoretical calculations reveal that the Ru/RuO2 interface enhances the adsorption strength of CEA, thereby facilitating the production of fully hydrogenated CCA. This work provides a deep understanding of the ECH pathway of BA in alkaline media, and gives a new methodology to fabricate heterostructure electrocatalysts.
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Affiliation(s)
- Zifan Cao
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
| | - Chenhui Wang
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
| | - Yifan Sun
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
| | - Menghui Liu
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
| | - Wei Li
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
| | - Jinli Zhang
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
| | - Yan Fu
- School of Chemical Engineering & Technology, Tianjin University Tianjin 300350 China
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5
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Ivanova P, Drozd M, Michrowski K, Karoń S, Mazurkiewicz-Pawlicka M, Pietrzak M. Au-X (X=Pt/Ru)-decorated magnetic nanocubes as bifunctional nanozyme labels in colorimetric, magnetically-enhanced, one-step sandwich CRP immunoassay. Biosens Bioelectron 2023; 237:115511. [PMID: 37429147 DOI: 10.1016/j.bios.2023.115511] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/12/2023]
Abstract
Scientific interest in the investigation and application of multifunctional nanomaterials in medical diagnostics has been increasing. The employment of magnetocatalytic immunoconjugates as both analyte-capturing agents and enzyme-like catalytic labels may enable rapid preconcentration and determination of relevant antigens. In this work, we synthesized and comprehensively characterized two types of noble metal-decorated magnetic nanocubes (MDMCs) which were subsequently applied in the one-step, sandwich nanozyme-linked immunosorbent assay (NLISA). Magnetic cores allow for rapid separation from complex samples of biological origin. The catalytically active shell composed of Au-decorated Pt or Ru can effectively mimic the activity of horseradish peroxididase, retaining at the same time the ability to form stable bioconstructs through self-assembly of thiolated ligands. As a result, hybrid multifunctional nanoparticles were synthesized and used to detect C-reactive protein (CRP) in serum samples. We have also paid considerable attention to the mechanistic studies of the formation of sandwich immunocomplexes with nanoparticle labels by means of immunoenzymatic methods and surface plasmon resonance. Analytical parameters of the Pt-MDMCs-labeled NLISA (detection limit LOD = 0.336 ng mL-1, recovery = 98.0%, linear response window covering two logarithmic units) turned out to be superior to the classical, one-step ELISA based on a horseradish peroxidase. In addition, our method offers further possibility of sensitivity adjustment by changing the parameters of magnetic preconcentration, together with good long-term stability of MDMCs conjugates and their good resistance to common interferences. We believe that the proposed simple synthetic protocol will guide a new approach to applying metal-decorated magnetic nanozymes as versatile and multifunctional labels for application in subsequent pre-analytical analyte concentration and immunoassays towards clinical applications.
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Affiliation(s)
- Polina Ivanova
- Department of Medical Diagnostics, Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822, Warsaw, Poland; Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Stanisława Noakowskiego 3, 00-664, Warsaw, Poland; Section of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Warsaw, Ludwika Pasteura 1, 02-093, Warsaw, Poland
| | - Marcin Drozd
- Department of Medical Diagnostics, Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822, Warsaw, Poland; Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Stanisława Noakowskiego 3, 00-664, Warsaw, Poland
| | - Kamil Michrowski
- Department of Medical Diagnostics, Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822, Warsaw, Poland
| | - Sylwia Karoń
- Department of Medical Diagnostics, Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822, Warsaw, Poland; Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Stanisława Noakowskiego 3, 00-664, Warsaw, Poland
| | - Marta Mazurkiewicz-Pawlicka
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Ludwika Waryńskiego 1, 00-645, Warsaw, Poland
| | - Mariusz Pietrzak
- Department of Medical Diagnostics, Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822, Warsaw, Poland; Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Stanisława Noakowskiego 3, 00-664, Warsaw, Poland.
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6
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Stabilization of unprecedented crystal phases of metal nanomaterials. TRENDS IN CHEMISTRY 2023. [DOI: 10.1016/j.trechm.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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7
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Ahn H, Cho S, Park JT, Jang H. Sequential galvanic replacement mediated Pd-doped hollow Ru-Te nanorods for enhanced hydrogen evolution reaction mass activity in alkaline media. NANOSCALE 2022; 14:14913-14920. [PMID: 36193715 DOI: 10.1039/d2nr04285a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
High catalytic activity, long-term stability, and economical Pt-free catalysts for the hydrogen evolution reaction (HER) are required for the conversion of renewable energy systems. Noble nanomaterial Pt is a superior electrolysis catalyst for water splitting under typical experimental conditions with a relatively low overpotential. However, the use of Pt is limited by its high cost and activity degradation over time. Among several prospective alternatives, Ru has emerged as a promising alkaline electrolysis catalyst because of its significant catalytic activity and reduced cost compared to Pt. We designed and suggested Pd-doped hollow Ru-Te nanorods (PdRuTeNRs) via successive galvanic replacement reactions of sacrificial Te nanotemplates to further boost efficiency. The Pd/partially oxidized RuO2/Ru/Te hetero-interfaced composition exhibited an HER mass activity of 11.3 A g-1 Ru, twice that of Pt. In addition, the present PdRuTeNRs sufficiently maintained the activity from the 2000-cycle continuous test, greatly reducing the required cost by a quarter.
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Affiliation(s)
- Hojung Ahn
- Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea.
| | - Sanghyuk Cho
- Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Jung Tae Park
- Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea.
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8
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Meischein M, Garzón-Manjón A, Hammerschmidt T, Xiao B, Zhang S, Abdellaoui L, Scheu C, Ludwig A. Elemental (im-)miscibility determines phase formation of multinary nanoparticles co-sputtered in ionic liquids. NANOSCALE ADVANCES 2022; 4:3855-3869. [PMID: 36133350 PMCID: PMC9470033 DOI: 10.1039/d2na00363e] [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: 06/09/2022] [Accepted: 08/11/2022] [Indexed: 06/16/2023]
Abstract
Non-equilibrium synthesis methods allow the alloying of bulk-immiscible elements into multinary nanoparticles, which broadens the design space for new materials. Whereas sputtering onto solid substrates can combine immiscible elements into thin film solid solutions, this is not clear for sputtering of nanoparticles in ionic liquids. Thus, the suitability of sputtering in ionic liquids for producing nanoparticles of immiscible elements is investigated by co-sputtering the systems Au-Cu (miscible), Au-Ru and Cu-Ru (both immiscible), and Au-Cu-Ru on the surface of the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [Bmim][(Tf)2N]. The sputtered nanoparticles were analyzed to obtain (i) knowledge concerning the general formation process of nanoparticles when sputtering onto ionic liquid surfaces and (ii) information, if alloy nanoparticles of immiscible elements can be synthesized as well as (iii) evidence if the Hume-Rothery rules for solid solubility are valid for sputtered nanoparticles. Nanoparticle characteristics were found to depend on elemental miscibility: (1) nanoparticles from immiscible elemental combinations showed bigger mean diameters ranging from (3.3 ± 1.4) nm to (5.0 ± 1.7) nm in contrast to mean diameters of nanoparticles from elemental combinations with at least one miscible element pair ((1.7 ± 0.7) nm to (1.8 ± 0.6) nm). (2) Nanoparticles from immiscible combinations showed compositions with one element strongly dominating the ratio and very narrow differences between the highest and lowest fraction of the dominating element (Cu94Ru6 to Cu100Ru0; Au96Ru4 to Au99Ru1) in contrast to the other compositions (Au64Cu36 to Au81Cu19; Au83Cu13Ru4/Au75Cu22Ru3 to Au87Cu11Ru2). Accompanying atomistic simulations using density-functional theory for clusters of different size and ordering confirm that the miscibility of Au-Cu and the immiscibility of Au-Ru and Cu-Ru govern the thermodynamic stability of the nanoparticles. Based on the matching experimental and theoretical results for the NP/IL-systems concerning NP stability, a formation model of multinary NPs in ILs was developed.
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Affiliation(s)
- Michael Meischein
- Chair for Materials Discovery and Interfaces, Institute for Materials, Faculty of Mechanical Engineering, Ruhr University Bochum Universitätsstr. 150 D-44780 Bochum Germany
| | - Alba Garzón-Manjón
- Max-Planck-Institut für Eisenforschung GmbH Max-Planck-Straße 1 D-0237 Düsseldorf Germany
| | - Thomas Hammerschmidt
- Chair of Atomistic Modelling and Simulation, Interdisciplinary Centre for Advanced Materials Simulation (ICAMS), Ruhr University Bochum Universitätsstr. 150 D-44780 Bochum Germany
| | - Bin Xiao
- Chair for Materials Discovery and Interfaces, Institute for Materials, Faculty of Mechanical Engineering, Ruhr University Bochum Universitätsstr. 150 D-44780 Bochum Germany
| | - Siyuan Zhang
- Max-Planck-Institut für Eisenforschung GmbH Max-Planck-Straße 1 D-0237 Düsseldorf Germany
| | - Lamya Abdellaoui
- Max-Planck-Institut für Eisenforschung GmbH Max-Planck-Straße 1 D-0237 Düsseldorf Germany
| | - Christina Scheu
- Max-Planck-Institut für Eisenforschung GmbH Max-Planck-Straße 1 D-0237 Düsseldorf Germany
| | - Alfred Ludwig
- Chair for Materials Discovery and Interfaces, Institute for Materials, Faculty of Mechanical Engineering, Ruhr University Bochum Universitätsstr. 150 D-44780 Bochum Germany
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9
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Jensen M, Gonano B, Kierulf-Vieira W, Kooyman PJ, Sjåstad AO. Innovative approach to controlled Pt-Rh bimetallic nanoparticle synthesis. RSC Adv 2022; 12:19717-19725. [PMID: 35865203 PMCID: PMC9258337 DOI: 10.1039/d2ra03373a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/21/2022] [Indexed: 11/27/2022] Open
Abstract
Precise control of the elemental composition and distribution in bimetallic nanoparticles is of great interest for both fundamental studies and applications, e.g. in catalysis. We present a new innovative and facile synthesis strategy for the production of true solid solution Pt1−xRhx nanoparticles. This constitutes a development of the established heat-up method, where undesired shell formation is fully suppressed, despite utilizing metal precursors with different reaction rates. The concept is demonstrated through synthesis of selected Pt1−xRhx solid solution compositions via the polyalcohol reduction approach. In addition, we provide modified procedures, using the same surface stabilizing agent/metal precursors reaction matrix yielding controlled model Rh(core)–Pt(shell) and Pt(core)–Rh(shell) nanoparticles. Tunable bimetallic solid solution and core–shell nanoparticles with the same capping agent are of key importance in systematic fundamental studies, as functional materials properties may be altered by modifying the surface termination. In this work, we establish an innovative protocol for the production of Pt–Rh solid solution/core–shell nanoparticles with excellent control of element distribution and composition, built upon the well-established heat-up method.![]()
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Affiliation(s)
- M Jensen
- Center for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P.O. Box 1033 Blindern N-0315 Oslo Norway
| | - B Gonano
- Center for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P.O. Box 1033 Blindern N-0315 Oslo Norway
| | - W Kierulf-Vieira
- Center for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P.O. Box 1033 Blindern N-0315 Oslo Norway
| | - P J Kooyman
- Department of Chemical Engineering, University of Cape Town Private Bag X3, Rondebosch 7701 South Africa
| | - A O Sjåstad
- Center for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo P.O. Box 1033 Blindern N-0315 Oslo Norway
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10
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Tan Z, Haneda M, Kitagawa H, Huang B. Slow Synthesis Methodology-Directed Immiscible Octahedral Pd x Rh 1-x Dual-Atom-Site Catalysts for Superior Three-Way Catalytic Activities over Rh. Angew Chem Int Ed Engl 2022; 61:e202202588. [PMID: 35302275 DOI: 10.1002/anie.202202588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Indexed: 11/10/2022]
Abstract
This study provided an effective strategy to construct dual-atom sites by solid-solution alloying. A slow synthesis methodology was established for the solid-solution preparations as dual-atom-site catalysts. The atomic-level homogeneous Pdx Rh1-x dual-atom-site catalysts were successfully synthesized over the whole composition range, as evidenced by X-ray powder diffraction and scanning transmission electron microscope energy-dispersive X-ray spectroscopy mapping measurements. The challenging morphology formation in the immiscible alloys was achieved by an energy-controlling process as the octahedral Rh-rich alloys. The Pd0.3 Rh0.7 dual-atom-site catalyst had unique surface states to activate the key reactants of CO and NO in the complex three-way catalytic reactions, and it performed significantly better than pure Rh.
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Affiliation(s)
- Zhe Tan
- Institute of Chemical Engineering and Technology, Xi'an Jiaotong University, Innovation Harbour, Xi-xian New District, Xi'an, 712-000, China
| | - Masaaki Haneda
- Advanced Ceramics Research Centre, Nagoya Institute of Technology, 10-6-29 Asahigaoka, Tajimi, Gifu, 507-0071, Japan.,Frontier Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 465-8555, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Bo Huang
- Institute of Chemical Engineering and Technology, Xi'an Jiaotong University, Innovation Harbour, Xi-xian New District, Xi'an, 712-000, China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350-002, China
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11
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Maruta Y, Kusada K, Wu D, Yamamoto T, Toriyama T, Matsumura S, Seo O, Yasuno S, Kawaguchi S, Sakata O, Kubota Y, Kitagawa H. Compositional dependence of structures and hydrogen evolution reaction activity of platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles. Chem Commun (Camb) 2022; 58:6421-6424. [PMID: 35546308 DOI: 10.1039/d2cc01866g] [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
Platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles were synthesised with compositions slightly away from equimolar, and their crystal and electronic structures were investigated. Their lattice constant changed linearly with composition, while the d-band centre changed nonlinearly. Their catalytic activities for the hydrogen evolution reaction were not correlated with their d-band centre.
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Affiliation(s)
- Yuto Maruta
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan. .,The HAKUBI Centre for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.,JST-PRESTO, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan
| | - Dongshuang Wu
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Tomokazu Yamamoto
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Syo Matsumura
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.,Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Okkyun Seo
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Satoshi Yasuno
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Shogo Kawaguchi
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Osami Sakata
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Yoshiki Kubota
- Department of Physics, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
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12
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Tan Z, Haneda M, Kitagawa H, HUANG B. Slow Synthesis Methodology‐Directed Immiscible Octahedral PdxRh1‐x Dual‐Atom‐Site Catalysts for Superior Three‐Way Catalytic Activities over Rh. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhe Tan
- Xi'an Jiaotong University Institute of Chemical Engineering and Technology CHINA
| | - Masaaki Haneda
- Nagoya Institute of Technology: Nagoya Kogyo Daigaku Advanced Ceramics research Center JAPAN
| | - Hiroshi Kitagawa
- Kyoto University: Kyoto Daigaku Division of Chemistry, Graduate School of Science JAPAN
| | - Bo HUANG
- Xi'an Jiaotong University Department of Chemical Engineering Department of Chemical EngineeringSchool of Chemical Engineering and TechnologyXi’an Jiaotong UniversityBeilin ward 710049 Xi’an CHINA
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13
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Zhang Q, Kusada K, Wu D, Yamamoto T, Toriyama T, Matsumura S, Kawaguchi S, Kubota Y, Kitagawa H. Crystal Structure Control of Binary and Ternary Solid-Solution Alloy Nanoparticles with a Face-Centered Cubic or Hexagonal Close-Packed Phase. J Am Chem Soc 2022; 144:4224-4232. [PMID: 35196005 DOI: 10.1021/jacs.2c00583] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The crystal structure significantly affects the physical and chemical properties of solids. However, the crystal structure-dependent properties of alloys are rarely studied because controlling the crystal structure of an alloy at the same composition is extremely difficult. Here, for the first time, we successfully demonstrate the synthesis of binary Ru-Pt (Ru/Pt = 7:3) and Ru-Ir (Ru/Ir = 7:3) and ternary Ru-Ir-Pt (Ru/Ir/Pt = 7:1.5:1.5) solid-solution alloy nanoparticles (NPs) with well-controlled hexagonal close-packed (hcp) and face-centered cubic (fcc) phases, through the chemical reduction method. The crystal structure control is realized by precisely tunning the reduction speeds of the metal precursors. The effect of the crystal structure on the catalytic performance of solid-solution alloy NPs is systematically investigated. Impressively, all the hcp alloy NPs show superior electrocatalytic activities for the hydrogen evolution reaction in alkaline solution compared with the fcc alloy NPs. In particular, hcp-RuIrPt exhibits extremely high intrinsic (mass) activity, which is 3.1 (3.2) and 6.7 (6.9) times enhanced compared to that of fcc-RuIrPt and commercial Pt/C.
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Affiliation(s)
- Quan Zhang
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Dongshuang Wu
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tomokazu Yamamoto
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Syo Matsumura
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.,Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Insitute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Yoshiki Kubota
- Department of Physical Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
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14
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Kusada K, Kitagawa H. Continuous-flow syntheses of alloy nanoparticles. MATERIALS HORIZONS 2022; 9:547-558. [PMID: 34812460 DOI: 10.1039/d1mh01413g] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Alloy nanoparticles (NPs), including core-shell, segregated and solid-solution types, show a variety of attractive properties such as catalytic and optical properties and are used in a wide range of applications. Precise control and good reproducibility in the syntheses of alloy NPs are highly demanded because these properties are tunable by controlling alloy structures, compositions, particle sizes, and so on. To improve the efficiency and reproducibility of their syntheses, continuous-flow syntheses with various types of reactors have recently been developed instead of the current mainstream approach, batch syntheses. In this review, we focus on the continuous-flow syntheses of alloy NPs and first overview the flow syntheses of NPs, especially of alloy NPs. Subsequently, the details of flow reactors and their chemistry to synthesize core-shell, segregated, solid-solution types of alloy NPs, and high-entropy alloy NPs are introduced. Finally, the challenges and future perspectives in this field are discussed.
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Affiliation(s)
- Kohei Kusada
- The Hakubi Centre for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
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15
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Nguyen MT, Deng L, Yonezawa T. Control of nanoparticles synthesized via vacuum sputter deposition onto liquids: a review. SOFT MATTER 2021; 18:19-47. [PMID: 34901989 DOI: 10.1039/d1sm01002f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Sputter deposition onto a low volatile liquid matrix is a recently developed green synthesis method for metal/metal oxide nanoparticles (NPs). In this review, we introduce the synthesis method and highlight its unique features emerging from the combination of the sputter deposition and the ability of the liquid matrix to regulate particle growth. Then, manipulating the synthesis parameters to control the particle size, composition, morphology, and crystal structure of NPs is presented. Subsequently, we evaluate the key experimental factors governing the particle characteristics and the formation of monometallic and alloy NPs to provide overall directions and insights into the preparation of NPs with desired properties. Following that, the current understanding of the growth and formation mechanism of sputtered particles in liquid media, in particular, ionic liquids and liquid polymers, during and after sputtering is emphasized. Finally, we discuss the challenges that remain and share our perspectives on the future prospects of the synthesis method and the obtained NPs.
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Affiliation(s)
- Mai Thanh Nguyen
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
| | - Lianlian Deng
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
| | - Tetsu Yonezawa
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
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16
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Yu F, Ying Q, Ni S, Li C, Xue D, Yang Y. Enhanced activity towards oxygen electrocatalysis for rechargeable Zn-air batteries by alloying Fe and Co in N-doped carbon. Dalton Trans 2021; 50:16185-16190. [PMID: 34723297 DOI: 10.1039/d1dt02787e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Large-scale application of rechargeable Zn-air batteries requires low-cost electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) as alternatives to noble metals. Herein, FeCo nanoparticles embedded in N-doped carbon (FeCo/N-C) were prepared by a two-step pyrolysis route. FeCo/N-C exhibits excellent activities toward both the ORR (half-wave potential of 0.84 V) and OER (overpotential of 345 mV at 10 mA cm-2), which are comparable to those of commercial Pt/C and RuO2, and by far exceeding their counterparts Fe/N-C and Co/N-C. Furthermore, the FeCo/N-C catalyst was evaluated in a rechargeable Zn-air battery for the full-cell test. The FeCo/N-C based battery is more durable with a smaller round-trip overpotential after 800 cycles than the battery using an expensive Pt/C + RuO2 mixture catalyst.
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Affiliation(s)
- Fengjiao Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Qi Ying
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Shaofeng Ni
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Chenxue Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Daxiang Xue
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Yang Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
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17
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Pu Z, Liu T, Zhang G, Ranganathan H, Chen Z, Sun S. Electrocatalytic Oxygen Evolution Reaction in Acidic Conditions: Recent Progress and Perspectives. CHEMSUSCHEM 2021; 14:4636-4657. [PMID: 34411443 DOI: 10.1002/cssc.202101461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/12/2021] [Indexed: 06/13/2023]
Abstract
The electrochemical oxygen evolution reaction (OER) is an important half-cell reaction in many renewable energy conversion and storage technologies, including electrolyzers, nitrogen fixation, CO2 reduction, metal-air batteries, and regenerative fuel cells. Among them, proton exchange membrane (PEM)-based devices exhibit a series of advantages, such as excellent proton conductivity, high durability, and good mechanical strength, and have attracted global interest as a green energy device for transport and stationary sectors. Nevertheless, with a view to rapid commercialization, it is urgent to develop highly active and acid-stable OER catalysts for PEM-based devices. In this Review, based on the recent advances in theoretical calculation and in situ/operando characterization, the OER mechanism in acidic conditions is first discussed in detail. Subsequently, recent advances in the development of several types of acid-stable OER catalysts, including noble metals, non-noble metals, and even metal-free OER materials, are systematically summarized. Finally, the current key issues and future challenges for materials used as acidic OER catalysis are identified and potential future directions are proposed.
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Affiliation(s)
- Zonghua Pu
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1S2, Canada
| | - Tingting Liu
- Institute for Clean Energy & Advanced Materials, School of Materials & Energy, Southwest University, Chongqing, 400715, P. R. China
| | - Gaixia Zhang
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1S2, Canada
| | - Hariprasad Ranganathan
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1S2, Canada
| | - Zhangxing Chen
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Shuhui Sun
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1S2, Canada
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18
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Zhang Q, Kusada K, Kitagawa H. Phase Control of Noble Monometallic and Alloy Nanomaterials by Chemical Reduction Methods. Chempluschem 2021; 86:504-519. [PMID: 33764700 DOI: 10.1002/cplu.202000782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/15/2021] [Indexed: 12/28/2022]
Abstract
In recent years, the phase control of monometallic and alloy nanomaterials has attracted great attention because of the potential to tune the physical and chemical properties of these species. In this Review, an overview of the latest research progress in phase-controlled monometallic and alloy nanomaterials is first given. Then, the phase-controlled synthesis using a chemical reduction method are discussed, and the formation mechanisms of these nanomaterials are specifically highlighted. Lastly, the challenges and future perspectives in this new research field are discussed.
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Affiliation(s)
- Quan Zhang
- Department of Chemistry, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kohei Kusada
- Department of Chemistry, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hiroshi Kitagawa
- Department of Chemistry, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
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19
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Kang Q, Lai D, Tang W, Lu Q, Gao F. Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction. Chem Sci 2021; 12:3818-3835. [PMID: 34163652 PMCID: PMC8179442 DOI: 10.1039/d0sc06716d] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
NiFe alloy catalysts have received increasing attention due to their low cost, easy availability, and excellent oxygen evolution reaction (OER) catalytic activity. Although it is considered that the co-existence of Ni and Fe is essential for the high catalytic activity, the identification of active sites and the mechanism of OER in NiFe alloy catalysts have been controversial for a long time. This review focuses on the catalytic centers of NiFe alloys and the related mechanism in the alkaline water oxidation process from the perspective of crystal structure/composition modulation and structural design. Briefly, amorphous structures, metastable phases, heteroatom doping and in situ formation of oxyhydroxides are encouraged to optimize the chemical configurations of active sites toward intrinsically boosted OER kinetics. Furthermore, the construction of dual-metal single atoms, specific nanostructures, carbon material supports and composite structures are introduced to increase the abundance of active sites and promote mass transportation. Finally, a perspective on the future development of NiFe alloy electrocatalysts is offered. The overall aim of this review is to shed light on the exploration of novel electrocatalysts in the field of energy.
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Affiliation(s)
- Qiaoling Kang
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Dawei Lai
- Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University Nanjing 210093 P. R. China
| | - Wenyin Tang
- Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University Nanjing 210093 P. R. China
| | - Qingyi Lu
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Feng Gao
- Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University Nanjing 210093 P. R. China
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20
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Zhai C, Ming R, Chen H, Tan L, Cong N, Han J, Zhou X, Yang X, Ren Z, Zhu Y. AuIr alloy with arbitrarily adjustable lattice parameters as a highly efficient electrocatalyst for the oxygen reduction reaction. Chem Commun (Camb) 2020; 56:15028-15031. [PMID: 33188378 DOI: 10.1039/d0cc05088a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AuIr alloy nanoparticles were successfully prepared without using surfactants for the first time despite Au and Ir being immiscible according to phase diagrams. The lattice parameters of the AuIr alloy can be adjusted arbitrarily. The oxygen reduction reaction (ORR) activity of Au5Ir5 alloy is better than that of Au or Ir, and the oxygen evolution reaction (OER) activity of the Au5Ir5 alloy is as good as that of Ir in alkaline solution.
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Affiliation(s)
- Conghui Zhai
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China.
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21
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Okazoe S, Kusada K, Wu D, Yamamoto T, Toriyama T, Matsumura S, Kawaguchi S, Kubota Y, Kitagawa H. Synthesis of Mo and Ru solid-solution alloy NPs and their hydrogen evolution reaction activity. Chem Commun (Camb) 2020; 56:14475-14478. [PMID: 33150336 DOI: 10.1039/d0cc05958g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We report the synthesis of MoRu solid-solution alloy nanoparticles using carbonyl complexes as a precursor through thermal decomposition. Alloying Ru with an early transition metal, Mo, leads to an electronic structure change, resulting in an enhancement of the catalytic activity for the hydrogen evolution reaction, which overtook that of the Pt catalyst.
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Affiliation(s)
- Shinya Okazoe
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
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22
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Huang B, Kobayashi H, Yamamoto T, Matsumura S, Nishida Y, Sato K, Nagaoka K, Haneda M, Kawaguchi S, Kubota Y, Kitagawa H. Coreduction methodology for immiscible alloys of CuRu solid-solution nanoparticles with high thermal stability and versatile exhaust purification ability. Chem Sci 2020; 11:11413-11418. [PMID: 34094383 PMCID: PMC8162931 DOI: 10.1039/d0sc03373a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
This study provides a coreduction methodology for solid solution formation in immiscible systems, with an example of a whole-region immiscible Cu–Ru system. Although the binary Cu–Ru alloy system is very unstable in the bulk state, the atomic-level well-mixed CuRu solid solution nanoparticles were found to have high thermal stability up to at least 773 K in a vacuum. The exhaust purification activity of the CuRu solid solution was comparable to that of face-centred cubic Ru nanoparticles. According to in situ infrared measurements, stronger NO adsorption and higher intrinsic reactivity of the Ru site on the CuRu surface than that of a pure Ru surface were found, affected by atomic-level Cu substitution. Furthermore, CuRu solid solution was a versatile catalyst for purification of all exhaust gases at a stoichiometric oxygen concentration. This study provides a coreduction methodology for solid solution formation in immiscible systems, with an example of a whole-region immiscible Cu–Ru system.![]()
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Affiliation(s)
- Bo Huang
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
| | - Hirokazu Kobayashi
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan .,JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Tomokazu Yamamoto
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan.,The Ultramicroscopy Research Centre, Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Syo Matsumura
- The Ultramicroscopy Research Centre, Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan.,Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan.,INAMORI Frontier Research Centre, Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Yoshihide Nishida
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Katsutoshi Sato
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan.,Elements Strategy Initiative for Catalysts and Batteries, Kyoto University 1-30 Goryo-Ohara, Nishikyo-ku Kyoto 615-8245 Japan
| | - Katsutoshi Nagaoka
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Masaaki Haneda
- Advanced Ceramics Research Centre, Nagoya Institute of Technology 10-6-29 Asahigaoka, Tajimi Gifu 507-0071 Japan.,Frontier Research Institute for Materials Science, Nagoya Institute of Technology Gokiso-cho, Showa-ku Nagoya 465-8555 Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun Hyogo 679-5198 Japan
| | - Yoshiki Kubota
- Department of Physical Science, Graduate School of Science, Osaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan .,INAMORI Frontier Research Centre, Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan.,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
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23
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Moreira Da Silva C, Girard A, Dufond M, Fossard F, Andrieux-Ledier A, Huc V, Loiseau A. Nickel platinum (Ni x Pt 1-x ) nanoalloy monodisperse particles without the core-shell structure by colloidal synthesis. NANOSCALE ADVANCES 2020; 2:3882-3889. [PMID: 36132757 PMCID: PMC9417886 DOI: 10.1039/d0na00450b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/09/2020] [Indexed: 06/15/2023]
Abstract
We report a new and versatile colloidal route towards the synthesis of nanoalloys with controlled size and chemical composition in the solid solution phase (without phase segregation such as core-shell structure or Janus structure) or chemical ordering. The principle of the procedure is based on the correlation between the oxidation-reduction potential of metal cations present in the precursors and the required synthesis temperature to nucleate particles without phase segregation. The procedure is demonstrated via the synthesis of Face Centered Cubic (FCC) Ni x Pt1-x nanoparticles, which was elaborated by the co-reduction of nickel(ii) acetylacetonate and platinum(ii) acetylacetonate with 1,2-hexadecanediol in benzyl ether, using oleylamine and oleic acid as surfactants. The chemical composition and solid solution FCC structure of the nanoalloy are demonstrated by crosslinking imaging and chemical analysis using transmission electron microscopy and X-ray diffraction techniques. Whatever the chemical composition inspected, a systematic expansion of the lattice parameters is measured in relation to the respective bulk counterpart.
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Affiliation(s)
- Cora Moreira Da Silva
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay Châtillon 92322 France
| | - Armelle Girard
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay Châtillon 92322 France
- Université Versailles Saint-Quentin, U. Paris-Saclay Versailles 78035 France
| | - Maxime Dufond
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay Châtillon 92322 France
| | - Frédéric Fossard
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay Châtillon 92322 France
| | - Amandine Andrieux-Ledier
- Département Physique, Instrumentation, Environnement, Espace, ONERA, U. Paris-Saclay Châtillon 92322 France
| | - Vincent Huc
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS, Paris Sud, U. Paris-Saclay Orsay 91045 France
| | - Annick Loiseau
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay Châtillon 92322 France
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24
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Dittrich S, Kohsakowski S, Wittek B, Hengst C, Gökce B, Barcikowski S, Reichenberger S. Increasing the Size-Selectivity in Laser-Based g/h Liquid Flow Synthesis of Pt and PtPd Nanoparticles for CO and NO Oxidation in Industrial Automotive Exhaust Gas Treatment Benchmarking. NANOMATERIALS 2020; 10:nano10081582. [PMID: 32806535 PMCID: PMC7466608 DOI: 10.3390/nano10081582] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 02/06/2023]
Abstract
PtPd catalysts are state-of-the-art for automotive diesel exhaust gas treatment. Although wet-chemical preparation of PtPd nanoparticles below 3 nm and kg-scale synthesis of supported PtPd/Al2O3 are already established, the partial segregation of the bimetallic nanoparticles remains an issue that adversely affects catalytic performance. As a promising alternative, laser-based catalyst preparation allows the continuous synthesis of surfactant-free, solid-solution alloy nanoparticles at the g/h-scale. However, the required productivity of the catalytically relevant size fraction <10 nm has yet to be met. In this work, by optimization of ablation and fragmentation conditions, the continuous flow synthesis of nanoparticles with a productivity of the catalytically relevant size fraction <10 nm of >1 g/h is presented via an in-process size tuning strategy. After the laser-based preparation of hectoliters of colloid and more than 2 kg of PtPd/Al2O3 wash coat, the laser-generated catalysts were benchmarked against an industry-relevant reference catalyst. The conversion of CO by laser-generated catalysts was found to be equivalent to the reference, while improved activity during NO oxidation was achieved. Finally, the present study validates that laser-generated catalysts meet the size and productivity requirements for industrial standard operating procedures. Hence, laser-based catalyst synthesis appears to be a promising alternative to chemical-based preparation of alloy nanoparticles for developing industrial catalysts, such as those needed in the treatment of exhaust gases.
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Affiliation(s)
- S. Dittrich
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, D-45141 Essen, Germany; (S.D.); (S.K.); (B.G.); (S.R.)
| | - S. Kohsakowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, D-45141 Essen, Germany; (S.D.); (S.K.); (B.G.); (S.R.)
- ZBT GmbH Zentrum für Brennstoffzellen Technik, Carl-Benz-Strasse 201, D-47057 Duisburg, Germany
| | - B. Wittek
- Umicore AG & Co. KG, Rodenbacher Chaussee 4, D-63457 Hanau, Germany; (B.W.); (C.H.)
| | - C. Hengst
- Umicore AG & Co. KG, Rodenbacher Chaussee 4, D-63457 Hanau, Germany; (B.W.); (C.H.)
| | - B. Gökce
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, D-45141 Essen, Germany; (S.D.); (S.K.); (B.G.); (S.R.)
| | - S. Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, D-45141 Essen, Germany; (S.D.); (S.K.); (B.G.); (S.R.)
- Correspondence:
| | - S. Reichenberger
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, D-45141 Essen, Germany; (S.D.); (S.K.); (B.G.); (S.R.)
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25
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Nagy G, Gál T, Srankó D, Sáfrán G, Maróti B, Sajó I, Schmidt FP, Beck A. Selective aerobic oxidation of benzyl alcohol on alumina supported Au-Ru and Au-Ir catalysts. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110917] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Kusada K, Wu D, Kitagawa H. New Aspects of Platinum Group Metal‐Based Solid‐Solution Alloy Nanoparticles: Binary to High‐Entropy Alloys. Chemistry 2020; 26:5105-5130. [DOI: 10.1002/chem.201903928] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/18/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Kohei Kusada
- Division of Chemistry Graduate School of Science Kyoto University 606-8502 Kyoto Japan
| | - Dongshuang Wu
- Division of Chemistry Graduate School of Science Kyoto University 606-8502 Kyoto Japan
| | - Hiroshi Kitagawa
- Division of Chemistry Graduate School of Science Kyoto University 606-8502 Kyoto Japan
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