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Toffoli D, Turco E, Stredansky M, Costantini R, Dell'Angela M, Floreano L, Goldoni A, Morgante A, Kladnik G, Cvetko D, de Oteyza DG, Colazzo L, Mohammed MSG, Sala A, Comelli G, Africh C, Fronzoni G, Balducci G, Stener M, Ustunel H, Cossaro A. Oxygen-Promoted on-Surface Synthesis of Polyboroxine Molecules. Chemistry 2024; 30:e202401565. [PMID: 38864572 DOI: 10.1002/chem.202401565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/09/2024] [Accepted: 06/11/2024] [Indexed: 06/13/2024]
Abstract
We present a protocol for the on-surface synthesis of polyboroxine molecules derived from boroxine molecules precursors. This process is promoted by oxygen species present on the Au(111) surface: oxygen atoms facilitate the detachment of naphthalene units of trinaphthyl-boroxine molecules and bridge two unsaturated boroxine centers to form a boroxine-O-boroxine chemical motif. X-ray spectroscopic characterization shows that, as the synthesis process proceeds, it progressively tunes the electronic properties of the interface, thus providing a promising route to control the electron level alignment.
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Affiliation(s)
- Daniele Toffoli
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Elia Turco
- Department of Physics, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Matus Stredansky
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Roberto Costantini
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
- Department of Physics, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Martina Dell'Angela
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Luca Floreano
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Andrea Goldoni
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Alberto Morgante
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
- Department of Physics, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Gregor Kladnik
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000, Ljubljana, Slovenia
| | - Dean Cvetko
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000, Ljubljana, Slovenia
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Dimas G de Oteyza
- Donostia International Physics Center, Paseo Manuel Lardizabal 4, E-20018, Donostia-San Sebastián, Spain
- Nanomaterials and Nanotechnology Research Center (CINN), CSOC-UNIOVI-PA, 33940, El Entrego, Spain
| | - Luciano Colazzo
- Donostia International Physics Center, Paseo Manuel Lardizabal 4, E-20018, Donostia-San Sebastián, Spain
- Centro de Física de Materiales (CSIC-UPV/EHU) - MPC, Paseo Manuel de Lardizabal, 5, E-20018, Donostia-San Sebastián, Spain
| | - Mohammed S G Mohammed
- Donostia International Physics Center, Paseo Manuel Lardizabal 4, E-20018, Donostia-San Sebastián, Spain
- Centro de Física de Materiales (CSIC-UPV/EHU) - MPC, Paseo Manuel de Lardizabal, 5, E-20018, Donostia-San Sebastián, Spain
| | - Alessandro Sala
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
- Department of Physics, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Giovanni Comelli
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
- Department of Physics, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Cristina Africh
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Giovanna Fronzoni
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
| | - Gabriele Balducci
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
| | - Mauro Stener
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
| | - Hande Ustunel
- Department of Physics, Middle East Technical University, 06800, Ankara, Turkey
| | - Albano Cossaro
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
- CNR - Istituto Officina dei Materiali (IOM), Strada Statale 14 - km 163.5, 34149, Trieste, Italy
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2
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Ye M, Song L, Ye Y, Deng Z. Assembly and Healing: Capacitive and Conductive Plasmonic Interfacing via a Unified and Clean Wet Chemistry Route. J Am Chem Soc 2023; 145:25653-25663. [PMID: 37963330 DOI: 10.1021/jacs.3c07879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Solution-based nanoparticle assembly represents a highly promising way to build functional metastructures based on a wealth of synthetic nanomaterial building blocks with well-controlled morphology and crystallinity. In particular, the involvement of DNA molecular programming in these bottom-up processes gradually helps the ambitious goal of customizable chemical nanofabrication. However, a fundamental challenge is to realize strong interunit coupling in an assembly toward emerging functions and applications. Herein, we present a unified and clean strategy to address this critical issue based on a H2O2-redox-driven "assembly and healing" process. This facile solution route is able to realize both capacitively coupled and conductively bridged colloidal boundaries, simply switchable by the reaction temperature, toward bottom-up nanoplasmonic engineering. In particular, such a "green" process does not cause surface contamination of nanoparticles by exogenous active metal ions or strongly passivating ligands, which, if it occurs, could obscure the intrinsic properties of as-formed structures. Accordingly, previously raised questions regarding the activities of strongly coupled plasmonic structures are clarified. The reported process is adaptable to DNA nanotechnology, offering molecular programmability of interparticle charge conductance. This work represents a new generation of methods to make strongly coupled nanoassemblies, offering great opportunities for functional colloidal technology and even metal self-healing.
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Affiliation(s)
- Meiyun Ye
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lei Song
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yichen Ye
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhaoxiang Deng
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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3
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Bimetallic TiO 2 Nanoparticles for Lignin-Based Model Compounds Valorization by Integrating an Optocatalytic Flow-Microreactor. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248731. [PMID: 36557862 PMCID: PMC9785458 DOI: 10.3390/molecules27248731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
The challenge of improving the activity of TiO2 by modifying it with metals and using it for targeted applications in microreactor environments is an active area of research. Recently, microreactors have emerged as successful candidates for many photocatalytic reactions, especially for the selective oxidation process. The current work introduces ultrasound-assisted catalyst deposition on the inner walls of a perfluoro-alkoxy alkane (PFA) microtube under mild conditions. We report Cu-Au/TiO2 and Fe-Au/TiO2 nanoparticles synthesized using the sol-gel method. The obtained photocatalysts were thoroughly characterized by UV-Vis diffuse-reflectance spectroscopy (DRS), high-resolution scanning electron microscopy (HR-SEM), high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and N2 physisorption. The photocatalytic activity under UV (375 nm) and visible light (515 nm) was estimated by the oxidation of lignin-based model aromatic alcohols in batch and fluoropolymer-based flow systems. The bimetallic catalyst exhibited improved photocatalytic selective oxidation. Herein, four aromatic alcohols were individually investigated and compared. In our experiments, the alcohols containing hydroxy and methoxy groups (coniferyl and vanillin alcohol) showed high conversion (93% and 52%, respectively) with 8% and 17% selectivity towards their respective aldehydes, with the formation of other side products. The results offer an insight into ligand-to-metal charge transfer (LMCT) complex formation, which was found to be the main reason for the activity of synthesized catalysts under visible light.
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4
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F S Codeço C, Klyushin AY, Carbonio EA, Knop-Gericke A, Schlögl R, Jones T, Rocha TCR. Insights into the electronic structure of hydroxyl on Ag(110) under near ambient conditions. Phys Chem Chem Phys 2022; 24:8832-8838. [PMID: 35353099 DOI: 10.1039/d1cp02929k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorbed hydroxyl is a key intermediate present in many catalytic reactions and electrochemical processes. In particular, hydroxyl adsorbed on noble metal surfaces has attracted attention due to its role in water-gas shift, selective oxidation of hydrocarbons and water splitting. In this work, from a well-defined oxygen covered Ag(110) surface with O-p(2 × 1) reconstruction, we prepared a fully hydroxylated surface phase in equilibrium with water and oxygen in the gas phase under near ambient conditions. In situ soft X-ray spectroscopy combined with density functional theory revealed distinctive modifications in the electronic structure of the adsorbate layer upon hydroxylation. We show that both the core and valence electronic states of OH adsorbates have higher binding energies relative to the Fermi level than the states for the O adsorbate. The OH orbitals interact with the d band of Ag giving rise to hybridized orbitals with bonding and anti-bonding symmetry, with larger energy splitting than the oxygen adsorbate.
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Affiliation(s)
- Camilla F S Codeço
- Instituto de Física, Universidade Federal do Rio de Janeiro, 21941-909, Rio de Janeiro, RJ, Brazil
| | - Alexander Yu Klyushin
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.,Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, BESSY II, Albert-Einstein-Straße 15, 12489, Berlin, Germany
| | - Emilia A Carbonio
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.,Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, BESSY II, Albert-Einstein-Straße 15, 12489, Berlin, Germany
| | - Axel Knop-Gericke
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.,Max Planck Institute for Chemical Energy Conversion, Department of Heterogeneous Reactions, Stiftstrasse 34 - 36, 45470 Mülheim an der Ruhr, Germany
| | - Robert Schlögl
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.,Max Planck Institute for Chemical Energy Conversion, Department of Heterogeneous Reactions, Stiftstrasse 34 - 36, 45470 Mülheim an der Ruhr, Germany
| | - Travis Jones
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Tulio C R Rocha
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research on Energy and Materials (CNPEM), 13083-970, Campinas, SP, Brazil.
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5
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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6
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Wang B, Li X, Liang S, Chu R, Zhang D, Chen H, Wang M, Zhou S, Chen W, Cao X, Feng W. Adsorption and oxidation of SO2 on the surface of TiO2 nanoparticles: the role of terminal hydroxyl and oxygen vacancy–Ti3+ states. Phys Chem Chem Phys 2020; 22:9943-9953. [DOI: 10.1039/d0cp00785d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The absorption and oxidation reactions of SO2 on TiO2 nanoparticles were investigated by using a flow chamber, synchrotron X-ray absorption near-edge structure and high resolution synchrotron X-ray photoelectron spectroscopy techniques.
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Zhang B, Zhang J, Qie M, Bai X, Pan M, Fang G, Wang S. In-situ graft-crosslinked gold nanoparticles with high-density surface defects and coated with a polytaurine membrane for the voltammetric determination of dopamine. Mikrochim Acta 2019; 186:746. [PMID: 31691865 DOI: 10.1007/s00604-019-3884-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/30/2019] [Indexed: 10/25/2022]
Abstract
Well-dispersed and graft-crosslinked gold nanoparticles (AuNPs) were synthesized by the reduction of tetrachloroaurate with hydrazine at room temperature. The AuNPs possess a high density of surface defects which is due to grafting of n-octanoic acid to polyvinylpyrrolidone. The physical and chemical properties of the resulting AuNPs were characterized by UV-vis, XRD, TEM/HRTEM, SAED, and XPS, respectively. The modified AuNPs were placed on a glassy carbon electrode (GCE) in an electropolymerized taurine layer to obtain a sensitive, selective, stable and rapid electrochemical dopamine sensor. The peak current, typically measured at 0.17 V (vs. SCE), increases linearly in the 1.0 to 120 μM dopamine concentration range, and the limit of detection (at S/N = 3) is 0.16 μM with a sensitivity of 2.94 μA·μM-1·cm-2. The sensor was successfully applied to the determination of dopamine in injections and spiked serum samples. The recoveries from spiked serum samples range from 97.5 to 102.4%, with RSDs ranging between 2.8 and 3.4%. Graphical abstract Schematic representation of a glassy carbon electrode modified with in-situ graft-crosslinked gold nanoparticles combined with an electropolymerized polytaurine membrane. The sensor exhibits excellent features towards dopamine determination.
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Affiliation(s)
- Bo Zhang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Jixiang Zhang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Meili Qie
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Xiaoyun Bai
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Mingfei Pan
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Guozhen Fang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China. .,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
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8
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Evans EJ, Li H, Han S, Henkelman G, Mullins CB. Oxidative Cross-Esterification and Related Pathways of Co-Adsorbed Oxygen and Ethanol on Pd–Au. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04820] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Edward James Evans
- McKetta Department of Chemical Engineering and Department of Chemistry, Texas Materials Institute, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712-0231, United States
| | - Hao Li
- Department of Chemistry and the Institute for Computational and Engineering Sciences, Texas Materials Institute, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712, United States
| | - Sungmin Han
- McKetta Department of Chemical Engineering and Department of Chemistry, Texas Materials Institute, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712-0231, United States
| | - Graeme Henkelman
- Department of Chemistry and the Institute for Computational and Engineering Sciences, Texas Materials Institute, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712, United States
| | - C. Buddie Mullins
- McKetta Department of Chemical Engineering and Department of Chemistry, Texas Materials Institute, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712-0231, United States
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9
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Rahman MZ, Mullins CB. Understanding Charge Transport in Carbon Nitride for Enhanced Photocatalytic Solar Fuel Production. Acc Chem Res 2019; 52:248-257. [PMID: 30596234 DOI: 10.1021/acs.accounts.8b00542] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Photocatalytic solar fuel production, for example, production of hydrogen via water-splitting, is an effective means of chemical storage of solar energy and provides a potential option for achieving a zero-emissions energy system. Conveniently, hydrogen can be converted back to electricity either via fuel cells or through combustion in gas turbines, or it can be mixed in low concentrations with natural gas or biogas for combustion in existing power plants. The cornerstone of a practical solar fuel production process is a stable, efficient, and scalable photocatalyst (a semiconductor material that accommodates photon absorption, charge carrier generation and transport, and catalytic reactions). Therefore, the quest for suitable photocatalyst materials is an ongoing process. Recently, carbon nitride (CN) has attracted widespread interest as a metal-free, earth-abundant, and highly stable photocatalyst. However, the catalytic efficiency of CN is not satisfactory because of its poor charge transport attributes. There is a direct relation between the photocatalytic efficiency and charge transport because the basic principle of light-promoted overall photodecomposition of water into H2 and O2 molecules (or, generally speaking, photoredox reactions) relies on separation and subsequent transfer of excited-state electron-hole pairs to relative redox couples. However, the excited states last for a very short time, typically nanoseconds to microseconds in liquids, and unless they are separated within this time frame, the excited-state electron-hole pairs undergo recombination with release of the captured light energy as heat or photon emission. To utilize light in a form other than heat or emitted photons by avoiding the recombination of excited-state electron-hole pairs, charged excitons must be scavenged before the absorption of subsequent photons to sustain a multielectron photoredox reaction. Otherwise, the extraction of charges becomes more difficult. This imposes a potential efficiency-limiting factor. An enhancement in water to hydrogen conversion efficiency in CN therefore requires the use of precious-metal cocatalysts (e.g., Pt) and sacrificial electron donor/acceptors to facilitate multielectron/multiproton transfers to overcome the high kinetic barriers. The use of Pt and sacrificial agents is not consistent with the notion of low-cost and sustainable hydrogen production from water. CN must overcome this dependence to stand out as a truly scalable photocatalyst. To make progress, the foremost requirement is to attain an in-depth understanding of the fundamental charge transport phenomena needed for the rational design of CN-based photocatalysts. In this Account, therefore, our aim is to provide a synopsis of current understanding and progress regarding charge-transport-related phenomena (e.g., recombination, trapping, transfer of charge carriers, etc.) and to discuss the effects of charge transport in enhancing the apparent quantum yield of hydrogen production in CN. This understanding is necessary to broaden the scope of CN for other catalytic applications, for example, efficient CO2 reduction to methanol or methane, fixation of nitrogen to ammonia, and use as an active material in solar cells. We also identify research gaps and issues to be addressed for a more clear elucidation of charge-transport-related phenomena in CN. Thus, this Account may inspire new research opportunities for tuning the extrinsic/intrinsic photophysicochemical properties of CN by rational design to attain the most favorable properties for improved catalytic efficiency.
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Affiliation(s)
- Mohammad Z. Rahman
- McKetta Department of Chemical Engineering and Department of Chemistry, Texas Materials Institute and Center for Electrochemistry, The University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - C. Buddie Mullins
- McKetta Department of Chemical Engineering and Department of Chemistry, Texas Materials Institute and Center for Electrochemistry, The University of Texas at Austin, Austin, Texas 78712-1589, United States
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10
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Theoretical Studies on the Direct Propylene Epoxidation Using Gold-Based Catalysts: A Mini-Review. Catalysts 2018. [DOI: 10.3390/catal8100421] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Direct propylene epoxidation using Au-based catalysts is an important gas-phase reaction and is clearly a promising route for the future industrial production of propylene oxide (PO). For instance, gold nanoparticles or clusters that consist of a small number of atoms demonstrate unique and even unexpected properties, since the high ratio of surface to bulk atoms can provide new reaction pathways with lower activation barriers. Support materials can have a remarkable effect on Au nanoparticles or clusters due to charge transfer. Moreover, Au (or Au-based alloy, such as Au–Pd) can be loaded on supports to form active interfacial sites (or multiple interfaces). Model studies are needed to help probe the underlying mechanistic aspects and identify key factors controlling the activity and selectivity. The current theoretical/computational progress on this system is reviewed with respect to the molecular- and catalyst-level aspects (e.g., first-principles calculations and kinetic modeling) of propylene epoxidation over Au-based catalysts. This includes an analysis of H2 and O2 adsorption, H2O2 (OOH) species formation, epoxidation of propylene into PO, as well as possible byproduct formation. These studies have provided a better understanding of the nature of the active centers and the dominant reaction mechanisms, and thus, could potentially be used to design novel catalysts with improved efficiency.
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11
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Molecular Orientations Change Reaction Kinetics and Mechanism: A Review on Catalytic Alcohol Oxidation in Gas Phase and Liquid Phase on Size-Controlled Pt Nanoparticles. Catalysts 2018. [DOI: 10.3390/catal8060226] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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12
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Wang D, Pan Y, Xu L, Li Z. PdAu@MIL-100(Fe) cooperatively catalyze tandem reactions between amines and alcohols for efficient N-alkyl amines syntheses under visible light. J Catal 2018. [DOI: 10.1016/j.jcat.2018.02.033] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Sensoy MG, Toffoli D, Ustunel H. Structural and electronic properties of bulk and low-index surfaces of zincblende PtC. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:125002. [PMID: 28067635 DOI: 10.1088/1361-648x/aa57e3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Transition metal carbides have been extensively used in diverse applications over the past decade. Their versatility is in part thanks to their unique bonding, which displays a mixture of ionic, metallic and covalent character. While the bulk structure of zincblende (ZB) PtC has been investigated several times, a detailed understanding of the electronic and structural properties of its low-index surfaces is lacking. In this work, we present an ab initio investigation of the properties of five crystallographic ZB PtC surfaces (Pt/C-terminated PtC(1 0 0), PtC(1 1 0) and Pt/C-terminated PtC(1 1 1)). Upon geometry optimization, both polar and nonpolar surfaces undergo a mild interlayer relaxation, without extensive reconstructions. Calculated vacancy formation energies indicate facile C removal on the (1 1 1) surface while Pt-vacancy formation is endothermic. Finally, atomic O adsorption energies on all surfaces reveal a high affinity of the C-terminated surfaces towards this species.
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Affiliation(s)
- Mehmet Gokhan Sensoy
- Department of Physics, Middle East Technical University, Dumlupinar Blv 1, 06800, Ankara, Turkey
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14
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Jafari M, Zimmerman PM. Reliable and efficient reaction path and transition state finding for surface reactions with the growing string method. J Comput Chem 2017; 38:645-658. [PMID: 28130776 DOI: 10.1002/jcc.24720] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/20/2016] [Accepted: 12/10/2016] [Indexed: 11/08/2022]
Abstract
The computational challenge of fast and reliable transition state and reaction path optimization requires new methodological strategies to maintain low cost, high accuracy, and systematic searching capabilities. The growing string method using internal coordinates has proven to be highly effective for the study of molecular, gas phase reactions, but difficulties in choosing a suitable coordinate system for periodic systems has prevented its use for surface chemistry. New developments are therefore needed, and presented herein, to handle surface reactions which include atoms with large coordination numbers that cannot be treated using standard internal coordinates. The double-ended and single-ended growing string methods are implemented using a hybrid coordinate system, then benchmarked for a test set of 43 elementary reactions occurring on surfaces. These results show that the growing string method is at least 45% faster than the widely used climbing image-nudged elastic band method, which also fails to converge in several of the test cases. Additionally, the surface growing string method has a unique single-ended search method which can move outward from an initial structure to find the intermediates, transition states, and reaction paths simultaneously. This powerful explorative feature of single ended-growing string method is demonstrated to uncover, for the first time, the mechanism for atomic layer deposition of TiN on Cu(111) surface. This reaction is found to proceed through multiple hydrogen-transfer and ligand-exchange events, while formation of H-bonds stabilizes intermediates of the reaction. Purging gaseous products out of the reaction environment is the driving force for these reactions. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Mina Jafari
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, Michigan, 48109
| | - Paul M Zimmerman
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, Michigan, 48109
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15
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Mullen GM, Evans EJ, Sabzevari I, Long BE, Alhazmi K, Chandler BD, Mullins CB. Water Influences the Activity and Selectivity of Ceria-Supported Gold Catalysts for Oxidative Dehydrogenation and Esterification of Ethanol. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02960] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Brittany E. Long
- Department
of Chemistry, Trinity University, San Antonio, Texas 78212, United States
| | | | - Bert D. Chandler
- Department
of Chemistry, Trinity University, San Antonio, Texas 78212, United States
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16
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Huang W, Sun G, Cao T. Surface chemistry of group IB metals and related oxides. Chem Soc Rev 2017; 46:1977-2000. [DOI: 10.1039/c6cs00828c] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic surface chemistry of IB metals are reviewed with an attempt to bridge model catalysts and powder catalysts.
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Affiliation(s)
- Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale
- Key Laboratory of Materials for Energy Conversion of Chinese Academy of Sciences
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
| | - Guanghui Sun
- Hefei National Laboratory for Physical Sciences at the Microscale
- Key Laboratory of Materials for Energy Conversion of Chinese Academy of Sciences
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
| | - Tian Cao
- Hefei National Laboratory for Physical Sciences at the Microscale
- Key Laboratory of Materials for Energy Conversion of Chinese Academy of Sciences
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei 230026
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17
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Personick ML, Madix RJ, Friend CM. Selective Oxygen-Assisted Reactions of Alcohols and Amines Catalyzed by Metallic Gold: Paradigms for the Design of Catalytic Processes. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02693] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michelle L. Personick
- Department
of Chemistry, Wesleyan University, Middletown, Connecticut 06459, United States
| | - Robert J. Madix
- Harvard
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Cynthia M. Friend
- Harvard
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
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18
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Duan S, Tian G, Luo Y. Theory for Modeling of High Resolution Resonant and Nonresonant Raman Images. J Chem Theory Comput 2016; 12:4986-4995. [DOI: 10.1021/acs.jctc.6b00592] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sai Duan
- Department
of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Guangjun Tian
- College
of Science, Yanshan University, Qinhuangdao 066004, China
| | - Yi Luo
- Department
of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
- Hefei
National Laboratory for Physical Science at the Microscale, Department
of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026 Anhui, China
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19
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Noschese A, Buonerba A, Canton P, Milione S, Capacchione C, Grassi A. Highly efficient and selective reduction of nitroarenes into anilines catalyzed by gold nanoparticles incarcerated in a nanoporous polymer matrix: Role of the polymeric support and insight into the reaction mechanism. J Catal 2016. [DOI: 10.1016/j.jcat.2016.05.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Davies PR. On the Role of Water in Heterogeneous Catalysis: A Tribute to Professor M. Wyn Roberts. Top Catal 2016. [DOI: 10.1007/s11244-016-0539-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Zugic B, Karakalos S, Stowers KJ, Biener MM, Biener J, Madix RJ, Friend CM. Continuous Catalytic Production of Methyl Acrylates from Unsaturated Alcohols by Gold: The Strong Effect of C═C Unsaturation on Reaction Selectivity. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02902] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Monika M. Biener
- Nanoscale
Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Juergen Biener
- Nanoscale
Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
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22
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Sharma AS, Kaur H, Shah D. Selective oxidation of alcohols by supported gold nanoparticles: recent advances. RSC Adv 2016. [DOI: 10.1039/c5ra25646a] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The review presents a commercially important field of alcohol oxidation using gold nanoparticles. It systematically discusses scope and limitation of various supports on the activity and selectivity of catalyst.
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Affiliation(s)
- Anuj S. Sharma
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
| | - Harjinder Kaur
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
| | - Dipen Shah
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
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23
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Leroux YR, Bergamini JF, Ababou S, Le Breton JC, Hapiot P. Synthesis of functionalized few-layer graphene through fast electrochemical expansion of graphite. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.06.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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25
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Jiang T, Jia C, Zhang L, He S, Sang Y, Li H, Li Y, Xu X, Liu H. Gold and gold-palladium alloy nanoparticles on heterostructured TiO2 nanobelts as plasmonic photocatalysts for benzyl alcohol oxidation. NANOSCALE 2015; 7:209-217. [PMID: 25406968 DOI: 10.1039/c4nr05905k] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Plasmonic photocatalysts composed of Au and bimetallic Au-Pd alloy nanoparticles (NPs) on one-dimensional TiO2 nanobelts (TiO2-NBs) were used for the aerobic oxidation of benzyl alcohol under visible light irradiation. Remarkable light-promoted activity was observed for the as-synthesized M/TiO2-NB (M = Au, Au-Pd) nanostructures based on the TiO2(B)/anatase heterostructured nanobelt. The difference in band structure and the well matched interface between the TiO2(B) and anatase phases, coupled with the one-dimensional nanostructure, enable an enhanced charge transfer within the heterostructured nanobelt. This inter-phase charge transfer greatly facilitates the flow of hot electrons from the metal NPs to TiO2 and promotes benzyl alcohol oxidation. This efficient electron transfer was identified by the much higher photocurrent response measured for the Au/TiO2-NB nanostructure with the TiO2(B)/anatase heterojunction than those with either of the single phases under visible light irradiation. Alloying Au with Pd in Au-Pd/TiO2-NB results in a significant improvement in the visible light-promoted activity compared to the monometallic Au/TiO2-NB sample. It is supposed that the plasmon-mediated charge distribution within the alloy NPs is mainly responsible for the enhanced photocatalytic activity of the bimetallic nanostructures.
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Affiliation(s)
- Tongtong Jiang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 27 Shandanan Road, Jinan 250100, China.
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26
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Leus K, Concepcion P, Vandichel M, Meledina M, Grirrane A, Esquivel D, Turner S, Poelman D, Waroquier M, Van Speybroeck V, Van Tendeloo G, García H, Van Der Voort P. Au@UiO-66: a base free oxidation catalyst. RSC Adv 2015. [DOI: 10.1039/c4ra16800c] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present the in situ synthesis of Au nanoparticles within the Zr based Metal Organic Framework, UiO-66.
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27
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Mullen GM, Zhang L, Evans EJ, Yan T, Henkelman G, Mullins CB. Control of selectivity in allylic alcohol oxidation on gold surfaces: the role of oxygen adatoms and hydroxyl species. Phys Chem Chem Phys 2015; 17:4730-8. [DOI: 10.1039/c4cp04739g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold catalysts display high activity and good selectivity for partial oxidation of a number of alcohol species.
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Affiliation(s)
- Gregory M. Mullen
- McKetta Department of Chemical Engineering
- University of Texas at Austin
- Austin
- USA
| | - Liang Zhang
- Department of Chemistry
- University of Texas at Austin
- Austin
- USA
| | - Edward J. Evans
- Department of Chemistry
- University of Texas at Austin
- Austin
- USA
| | - Ting Yan
- Department of Chemistry
- University of Texas at Austin
- Austin
- USA
| | | | - C. Buddie Mullins
- McKetta Department of Chemical Engineering
- University of Texas at Austin
- Austin
- USA
- Department of Chemistry
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28
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Sugioka D, Kameyama T, Kuwabata S, Torimoto T. Single-step preparation of two-dimensionally organized gold particles via ionic liquid/metal sputter deposition. Phys Chem Chem Phys 2015; 17:13150-9. [DOI: 10.1039/c5cp01602a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sputter deposition of Au onto an ionic liquid with a hydroxyl-functionalized cation produces a uniform monoparticle film on the liquid surface. The size of nanoparticles is controlled by the sputtering conditions.
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Affiliation(s)
- Daisuke Sugioka
- Graduate School of Engineering
- Nagoya University
- Furo-cho
- Chikusa-ku
- Japan
| | - Tatsuya Kameyama
- Graduate School of Engineering
- Nagoya University
- Furo-cho
- Chikusa-ku
- Japan
| | | | - Tsukasa Torimoto
- Graduate School of Engineering
- Nagoya University
- Furo-cho
- Chikusa-ku
- Japan
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