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R D, Sengupta T, Kumar D, Khanna SN. Effect of Ligand Attachment at Ag 11 for CO Oxidation: A Computational Investigation. J Phys Chem A 2023; 127:10766-10774. [PMID: 38095876 DOI: 10.1021/acs.jpca.3c04675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Heterogeneous CO oxidation is a demanding reaction at room temperature due to the high activation energy required to break the O=O bond. While several metal clusters are reported to oxidize CO successfully, they fall short of their selectivity for the reaction and recyclability. In this regard, there is a need for economic catalysts with high catalytic activity, low activation barrier, and reusability. In this study, we have investigated the catalytic activity of the neutral pristine and ligated Ag11 cluster toward CO oxidation. We investigated the attachment effect of three organic donor ligands: trimethylphosphine, triethylphosphine, and N-ethyl pyrrolidone to the Ag11 cluster. Our results show that including donor ligands on the Ag11 cluster surface can significantly reduce the barrier heights for CO oxidation. The minimum barrier heights with the system coordinated with triethylphosphine showed the lowest activation barrier of 1.06 kcal/mol compared to the high activation barrier of 14.77 kcal/mol recorded for the pristine cluster. Exploration of the reaction mechanism and charge analysis showed that the electron donor ligands activate O2 via charge donation, thereby reducing the barrier heights of CO oxidation.
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Affiliation(s)
- Deeksha R
- Department of Chemistry, Faculty of Mathematical and Physical Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka 560058, India
| | - Turbasu Sengupta
- Physics Department, Virginia Commonwealth University, 701 W. Grace St., Richmond, Virginia 23284-2000, United States
| | - Deepak Kumar
- Department of Chemistry, Faculty of Mathematical and Physical Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka 560058, India
| | - Shiv N Khanna
- Physics Department, Virginia Commonwealth University, 701 W. Grace St., Richmond, Virginia 23284-2000, United States
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2
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Zhu B, Li X, Li Y, Liu J, Zhang X. Boosting the Photocatalysis of Plasmonic Au-Cu Nanocatalyst by AuCu-TiO 2 Interface Derived from O 2 Plasma Treatment. Int J Mol Sci 2023; 24:10487. [PMID: 37445665 DOI: 10.3390/ijms241310487] [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: 05/24/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Plasmonic gold (Au) and Au-based nanocatalysts have received significant attention over the past few decades due to their unique visible light (VL) photocatalytic features for a wide variety of chemical reactions in the fields of environmental protection. However, improving their VL photocatalytic activity via a rational design is prevalently regarded as a grand challenge. Herein we boosted the VL photocatalysis of the TiO2-supported Au-Cu nanocatalyst by applying O2 plasma to treat this bimetallic plasmonic nanocatalyst. We found that O2 plasma treatment led to a strong interaction between the Au and Cu species compared with conventional calcination treatment. This interaction controlled the size of plasmonic metallic nanoparticles and also contributed to the construction of AuCu-TiO2 interfacial sites by forming AuCu alloy nanoparticles, which, thus, enabled the plasmonic Au-Cu nanocatalyst to reduce the Schottky barrier height and create numbers of highly active interfacial sites. The catalyst's characterizations and density functional theory (DFT) calculations demonstrated that boosted VL photocatalytic activity over O2 plasma treated Au-Cu/TiO2 nanocatalyst arose from the favorable transfer of hot electrons and a low barrier for the reaction between CO and O with the construction of large numbers of AuCu-TiO2 interfacial sites. This work provides an efficient approach for the rational design and development of highly active plasmonic Au and Au-based nanocatalysts and deepens our understanding of their role in VL photocatalytic reactions.
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Affiliation(s)
- Bin Zhu
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116024, China
| | - Xue Li
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116024, China
| | - Yecheng Li
- Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Jinglin Liu
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116024, China
| | - Xiaomin Zhang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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3
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Scandura G, Kumari P, Palmisano G, Karanikolos GN, Orwa J, Dumée LF. Nanoporous Dealloyed Metal Materials Processing and Applications─A Review. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Gabriele Scandura
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
| | - Priyanka Kumari
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Membrane and Advanced Water Technology (CMAT), Khalifa University, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
| | - Giovanni Palmisano
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Membrane and Advanced Water Technology (CMAT), Khalifa University, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
| | - Georgios N. Karanikolos
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Membrane and Advanced Water Technology (CMAT), Khalifa University, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Catalysis and Separations (CeCaS), Khalifa University, Abu Dhabi, United Arab Emirates
| | - Julius Orwa
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Ludovic F. Dumée
- Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Membrane and Advanced Water Technology (CMAT), Khalifa University, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
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4
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ZHAO Q, YU H, HU D, LI LL, JIN J, AI MJ, WEI J, SONG K. Recent advances in electrochemical sensors based on palladium nanoparticles. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Bhuskute BD, Ali-Löytty H, Honkanen M, Salminen T, Valden M. Influence of the photodeposition sequence on the photocatalytic activity of plasmonic Ag-Au/TiO 2 nanocomposites. NANOSCALE ADVANCES 2022; 4:4335-4343. [PMID: 36321159 PMCID: PMC9552921 DOI: 10.1039/d2na00440b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Abstract
Bimetallic Ag-Au/TiO2 nanocomposites were synthesized by sequential photodeposition in order to investigate the effect of surface plasmon resonance (SPR) properties on photocatalytic activity for solar water splitting and methylene blue (MB) degradation. The photodeposition times were optimized for monometallic Ag/TiO2 and Au/TiO2 nanocomposites to yield maximum SPR absorption in the visible range. It was found that the photocatalytic activity of bimetallic Ag-Au/TiO2 nanocomposites outperformed monometallic nanocomposites only when Au was photodeposited first on TiO2, which was attributed to Au-core-Ag-shell nanoparticle morphology. In contrast, reversing the photodeposition order resulted in Ag-Au alloy nanoparticle morphology, which was mediated by the galvanic replacement reaction during the second photodeposition. Alloying was not beneficial to the photocatalytic activity. These results demonstrate alloying during sequential photodeposition providing new insights for the synthesis of TiO2-based photocatalysts with plasmon-enhanced absorption in the visible range.
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Affiliation(s)
- Bela D Bhuskute
- Surface Science Group, Faculty of Engineering and Natural Sciences, Tampere University P.O. Box 692 FI-33014 Tampere Finland
| | - Harri Ali-Löytty
- Surface Science Group, Faculty of Engineering and Natural Sciences, Tampere University P.O. Box 692 FI-33014 Tampere Finland
| | - Mari Honkanen
- Tampere Microscopy Center, Tampere University P.O. Box 692 FI-33014 Tampere Finland
| | - Turkka Salminen
- Tampere Microscopy Center, Tampere University P.O. Box 692 FI-33014 Tampere Finland
| | - Mika Valden
- Surface Science Group, Faculty of Engineering and Natural Sciences, Tampere University P.O. Box 692 FI-33014 Tampere Finland
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6
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Chen D, He X, Chen X, Wang Z, Wang X. Bimetallic Au-Ag catalysts in HCHO catalytic oxidation: No synergetic effect? Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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7
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El Shahawy A, Mubarak MF, El Shafie M, Abdulla HM. Fe(iii) and Cr(vi) ions' removal using AgNPs/GO/chitosan nanocomposite as an adsorbent for wastewater treatment. RSC Adv 2022; 12:17065-17084. [PMID: 35755594 PMCID: PMC9178443 DOI: 10.1039/d2ra01612e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/02/2022] [Indexed: 12/12/2022] Open
Abstract
Heavy metal ions in water refer to significant risks to the biological system due to their high toxicity. Therefore, the decontamination of water polluted by heavy metal ions attracts significant interest of researchers. Adsorption by nanomaterials has been a widely used technique for removing heavy metal ions from water. Chitosan was extracted from shrimp shellfish and mixed with laboratory-prepared AgNPs/GO in the ratio of 3 : 1. A series of tests evaluates the best condition of pH, amount of adsorbent, retention time, stirring speed, temp, and initial concentration. The research was conducted under various conditions. Langmuir, Freundlich, Tempkin, and Dubinin–Radushkevich isotherms were also tested. Also, the column adsorption experiment was carried out on industrial wastewater at different flow rates and column bed heights. The optimal values of the contact time, pH, and adsorbent dose of Cr(vi) were found to be 80 min, 4, and 0.1 g 100 mL−1, respectively, at room temperature (30 °C), agitation at 150 rpm, and initial concentration of 50 ppm. On the other hand, the optimal value of contact time, pH, and adsorbent dose of Fe(iii) were found to be 30 min, 6, and 0.02 g 100 mL−1, respectively, at room temp (30 °C) with a stirring speed of 250 rpm and an initial concentration of 40 ppm. For Cr(vi) and Fe(iii), equilibrium studies show that the data fit the Freundlich isotherm well (correlation coefficient, R2 = 0.98) (III). A link between the pseudo-second order active model and data fitting the pseudo-first order active models were made. Within the intraparticle diffusion model, there are four stages that the mechanism must go through before it is at equilibrium. The adsorbent was tested in an industrial adsorbent column. This test proves that the nanocomposite's adsorption capacity can be restored by washing it with 0.1 M HCl, as shown by the periodicity test. After four cycles, the amount of Cr(vi) adsorbed on AgNPs/GO/chitosan was just 20%, which is insufficient for further adsorption experiments. Cr(vi) removal rates (%R) decreased slightly. Steps of AgNPs/GO/chitosan nanocomposite preparation.![]()
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Affiliation(s)
- Abeer El Shahawy
- Department of Civil Engineering, Faculty of Engineering, Suez Canal University PO Box 41522 Ismailia Egypt
| | - Mahmoud F Mubarak
- Petroleum Applications Department, Egyptian Petroleum Research Institute (EPRI) Nasr City Cairo 11727 Egypt .,Faculty of Science, Mansoura University Mansoura Egypt
| | - Merna El Shafie
- Department of Civil Engineering, Faculty of Engineering, Suez Canal University PO Box 41522 Ismailia Egypt
| | - Hesham M Abdulla
- Botany Dept., Faculty of Science, Suez Canal University Box 41522 Ismailia Egypt
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8
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Yıldırım H, Göcen T, Garip AK. Melting behavior of Ir-Ag-Au nanoalloys: a molecular dynamic study. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2072839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Tuğba Göcen
- Ahmet Erdoğan Vocational School of Health, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
| | - Ali Kemal Garip
- Department of Physics, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
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9
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Lin L, Shi P, Yao L, Xie K, Tao H, Zhang Z, Wang Y. First-principles study on CO oxidation on CuO(111) surface prefers the Eley-Rideal or Langmuir-Hinshelwood pathway. NANOTECHNOLOGY 2022; 33:205504. [PMID: 35081528 DOI: 10.1088/1361-6528/ac4f19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Using the first-principles approach, we investigated the electronic and chemical properties of cupric oxide CuO (110) and CuO (111) and substantiated their catalytic activity toward CO oxidation. It is found that CuO (111) surface is more stable than the CuO (110) surface. We firstly study that adsorption of CO and O2on perfect, oxygen vacancies and Cu-anchored CuO (111) surface. It is found that adsorption of CO and O2molecules are chemical. Then we selected the most stable adsorption structure of CO/O2to investigated the CO oxidation mechanism on different surface, here we choose to study the Langmuir-Hinshelwood (LH) mechanism and Eley-Rideal (ER) mechanism. The results show that perfect and OvacancyCuO (111) surface is more inclined to LH mechanism, while the Cu-anchored CuO (111) surface is more inclined to ER mechanism. The results show that CuO catalyst is very effective for CO oxidation. Our work provides a deep understanding for the search of economical and reasonable CO oxidation catalysts.
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Affiliation(s)
- Long Lin
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
- School of Mathematics and Informatics, Henan Polytechnic University, Jiaozuo 454000, People's Republic of China
| | - Pei Shi
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
| | - Linwei Yao
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Kun Xie
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
| | - Hualong Tao
- Liaoning Key Materials Laboratory for Railway, School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning Province, People's Republic of China
| | - Zhanying Zhang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
| | - Yanfang Wang
- School of Mathematics and Informatics, Henan Polytechnic University, Jiaozuo 454000, People's Republic of China
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10
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Malik AS, Liu T, Rittiruam M, Saelee T, Da Silva JLF, Praserthdam S, Praserthdam P. On a high photocatalytic activity of high-noble alloys Au-Ag/TiO 2 catalysts during oxygen evolution reaction of water oxidation. Sci Rep 2022; 12:2604. [PMID: 35173262 PMCID: PMC8850597 DOI: 10.1038/s41598-022-06608-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/31/2022] [Indexed: 11/29/2022] Open
Abstract
The analysis via density functional theory was employed to understand high photocatalytic activity found on the Au–Ag high-noble alloys catalysts supported on rutile TiO2 during the oxygen evolution of water oxidation reaction (OER). It was indicated that the most thermodynamically stable location of the Au–Ag bimetal-support interface is the bridging row oxygen vacancy site. On the active region of the Au–Ag catalyst, the Au site is the most active for OER catalyzing the reaction with an overpotential of 0.60 V. Whereas the photocatalytic activity of other active sites follows the trend of Au > Ag > Ti. This finding evident from the projected density of states revealed the formation of the trap state that reduces the band gap of the catalyst promoting activity. In addition, the Bader charge analysis revealed the electron relocation from Ag to Au to be the reason behind the activity of the bimetallic that exceeds its monometallic counterparts.
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Affiliation(s)
- Anum Shahid Malik
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand.,Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Taifeng Liu
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Meena Rittiruam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand.,Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand.,Rittiruam Research Group, Bangkok, 10330, Thailand
| | - Tinnakorn Saelee
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand.,Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand.,Saelee Research Group, Bangkok, 10330, Thailand
| | - Juarez L F Da Silva
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, São Carlos, SP, 13560-970, Brazil
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand. .,Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
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11
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Brindle J, Sufyan SA, Nigra MM. Support, composition, and ligand effects in partial oxidation of benzyl alcohol using gold–copper clusters. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00137c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The effect of metallic composition, support, and ligands on catalytic performance using AuCu clusters in benzyl alcohol oxidation is investigated.
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Affiliation(s)
- Joseph Brindle
- Department of Chemical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Sayed Abu Sufyan
- Department of Chemical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Michael M. Nigra
- Department of Chemical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
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12
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Ćwieka K, Czelej K, Colmenares JC, Jabłczyńska K, Werner Ł, Gradoń L. Supported Plasmonic Nanocatalysts for Hydrogen Production by Wet and Dry Photoreforming of Biomass and Biogas Derived Compounds: Recent Progress and Future Perspectives. ChemCatChem 2021. [DOI: 10.1002/cctc.202101006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karol Ćwieka
- Faculty of Chemical and Process Engineering Warsaw University of Technology L. Warynskiego 1 00645 Warsaw Poland
- Faculty of Materials Science and Engineering Warsaw University of Technology Woloska 141 02507 Warsaw Poland
| | - Kamil Czelej
- Department of Complex System Modeling Institute of Theoretical Physics Faculty of Physics University of Warsaw Pasteura 5 02093 Warszawa Poland
| | - Juan Carlos Colmenares
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44/52 01224 Warsaw Poland
| | - Katarzyna Jabłczyńska
- Faculty of Chemical and Process Engineering Warsaw University of Technology L. Warynskiego 1 00645 Warsaw Poland
| | - Łukasz Werner
- Faculty of Chemical and Process Engineering Warsaw University of Technology L. Warynskiego 1 00645 Warsaw Poland
| | - Leon Gradoń
- Faculty of Chemical and Process Engineering Warsaw University of Technology L. Warynskiego 1 00645 Warsaw Poland
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Activity of Ag/CeZrO2, Ag+K/CeZrO2, and Ag-Au+K/CeZrO2 Systems for Lean Burn Exhaust Clean-Up. Catalysts 2021. [DOI: 10.3390/catal11091041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Herein, the activity of Ag and bimetallic Au-Ag catalysts, supported over Ce0.85Zr0.15O2 (CZ), was investigated in a complex stream, whose components included CO, C3H8, NO, O2, and, optionally, an injection of water vapor. In such a stream, three of the possible reactions that can occur are CO oxidation, propane combustion, and NO oxidation. The aim of these studies was to explore whether silver, due to its strong affinity to oxygen, will counteract the stabilization of oxygen by potassium. The effect of the presence of potassium ions on the activity of the monometallic silver catalysts is beneficial in the complex stream without water vapor in all three studied reactions, although it is negligible in the model CO stream. It has been shown that water vapor strongly suppresses the activity of the Ag+K/CZ catalyst, much more so than that of the Ag/CZ catalyst. The second purpose of the work was to determine whether the negative effect of potassium ions on the activity of nanogold catalyst can be countered by the addition of silver. Studies in a model stream for CO oxidation have shown that, for a catalyst preloaded with gold, the effect of potassium is nulled by silver, and the activity of AuAg + 0.15 at%K/CZ and AuAg + 0.30 at%K/CZ is the same as that of the monometallic Au catalyst. Conversely, when the reaction is carried out in a complex stream, containing CO, C3H8, NO, O2, and water vapor, the presence of water vapor leads to higher CO conversion as well as increased NO2 formation and slightly suppresses the C3H8 combustion.
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14
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Sequential electrodeposition of Cu-Pt bimetallic nanocatalysts on boron-doped diamond electrodes for the simple and rapid detection of methanol. Sci Rep 2021; 11:14354. [PMID: 34257317 PMCID: PMC8277777 DOI: 10.1038/s41598-021-92769-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 06/09/2021] [Indexed: 11/08/2022] Open
Abstract
In this work, a novel electrochemical sensor for methanol determination was established by developing a bimetallic catalyst with superiority to a monometallic catalyst. A Cu–Pt nanocatalyst was proposed and easily synthesized by sequential electrodeposition onto a boron-doped diamond (BDD) electrode. The successful deposition of this nanocatalyst was then verified by scanning electron microscopy and energy dispersive spectroscopy. The electrodeposition technique and sequence of metal deposition significantly affected the surface morphology and electrocatalytic properties of the Cu–Pt nanocatalyst. The presence of Cu atoms reduced the adsorption of other species on the Pt surface, consequently enhancing the long-term stability and poisoning tolerance of Pt nanocatalysts during the methanol oxidation process. This advanced sensor was also integrated with sequential injection analysis to achieve automated and high-throughput analysis. This combination can significantly improve the detection limit of the developed sensor by approximately 100 times compared with that of the cyclic voltammetric technique. The limit of detection of this sensor was 83 µM (S/N = 3), and wide linearity of the standard curve for methanol concentrations ranging from 0.1 to 1000 mM was achieved. Finally, this proposed sensor was successfully applied to detect methanol in fruit and vegetable beverage samples.
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15
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Effect of the Metal Deposition Order on Structural, Electronic and Catalytic Properties of TiO2-Supported Bimetallic Au-Ag Catalysts in 1-Octanol Selective Oxidation. Catalysts 2021. [DOI: 10.3390/catal11070799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Au and Ag were deposited on TiO2 modified with Ce, La, Fe or Mg in order to obtain bimetallic catalysts to be used for liquid-phase oxidation of 1-octanol. The effects of the deposition order of gold and silver, and the nature of the support modifying additives and redox pretreatments on the catalytic properties of the bimetallic Au-Ag catalysts were studied. Catalysts were characterized by low-temperature nitrogen adsorption–desorption, energy dispersive spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy and ultraviolet-visible diffuse reflectance spectroscopy. It was found that pretreatments with hydrogen and oxygen at 300 °C significantly decreased the activity of AuAg catalysts (silver was deposited first) and had little effect on the catalytic properties of AgAu samples (gold was deposited first). The density functional theory method demonstrated that the adsorption energy of 1-octanol increased for all positively charged AuxAgyq (x + y = 10, with a charge of q = 0 or +1) clusters compared with the neutral counterparts. Lanthanum oxide was a very effective promoter for both monometallic and bimetallic gold and silver catalysts in the studied process.
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Park H, Masud MK, Na J, Lim H, Phan HP, Kaneti YV, Alothman AA, Salomon C, Nguyen NT, Hossain MSA, Yamauchi Y. Mesoporous gold-silver alloy films towards amplification-free ultra-sensitive microRNA detection. J Mater Chem B 2021; 8:9512-9523. [PMID: 32996976 DOI: 10.1039/d0tb02003f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Herein, we report the preparation of mesoporous gold (Au)-silver (Ag) alloy films through the electrochemical micelle assembly process and their applications as microRNA (miRNA) sensors. Following electrochemical deposition and subsequent removal of the templates, the polymeric micelles can create uniformly sized mesoporous architectures with high surface areas. The resulting mesoporous Au-Ag alloy films show high current densities (electrocatalytic activities) towards the redox reaction between potassium ferrocyanide and potassium ferricyanide. Following magnetic isolation and purification, the target miRNA is adsorbed directly on the mesoporous Au-Ag film. Electrochemical detection is then enabled by differential pulse voltammetry (DPV) using the [Fe(CN)6]3-/4- redox system (the faradaic current for the miRNA-adsorbed Au-Ag film decreases compared to the bare film). The films demonstrate great advantages towards miRNA sensing platforms to enhance the detection limit down to attomolar levels of miR-21 (limit of detection (LOD) = 100 aM, s/n = 3). The developed enzymatic amplification-free miniaturized analytical sensor has promising potential for RNA-based diagnosis of diseases.
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Affiliation(s)
- Hyeongyu Park
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Mostafa Kamal Masud
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia. and Department of Biochemistry and Molecular Biology, School of Life Sciences, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh
| | - Jongbeom Na
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Hyunsoo Lim
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Hoang-Phuong Phan
- Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, Queensland 4111, Australia
| | - Yusuf Valentino Kaneti
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Asma A Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane, Queensland, Australia and Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
| | - Nam-Trung Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, Queensland 4111, Australia
| | - Md Shahriar A Hossain
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia. and School of Mechanical and Mining Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia. and School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, Brisbane, QLD 4072, Australia
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17
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Thangaswamy SJK, Mir MA, Muthu A. Green synthesis of mono and bimetallic alloy nanoparticles of gold and silver using aqueous extract of Chlorella acidophile for potential applications in sensors. Prep Biochem Biotechnol 2021; 51:1026-1035. [PMID: 33687315 DOI: 10.1080/10826068.2021.1894441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Bimetallic or alloy nanoparticles (NPs) have improved properties compared to their monometallic forms. Microalgae being rich in biocompatible reductants and being ecofriendly are potential sources to synthesize fuctionalized NPs. In this study, biosynthesis of silver, gold, and bimetallic NPs was carried out via bioreduction using aqueous extract of algal isolate Chlorella acidophile, inhabitant of non-arable land. C. acidophile is known to contain highly bioactive functional moieties, which can serve as nanobiofactories for metallic NPs. Various characterization techniques viz, UV-visible spectrophotometer, X-ray diffraction analysis, X-ray photo-electron spectroscopy, and Raman spectroscopy were employed to determine their composition, structure, and crystal phase. The monometallic and bimetallic particles were found to be crystalline state and generally in a spherical shape. Their size ranged from 5 to 45 nm and the corresponding FTIR spectra indicated that the specific organic functional groups from algal extract were involved in the bio-reduction. Furthermore, the core-shell in the case of Au-Ag NPs was formed due to the simultaneous reduction of gold and silver ions. An enhanced and more pronounced Raman spectra of Au-Ag NP compared to individual Au NP indicated the improved properties of bimetallic NPs, the latter having been of immense potential to be used as sensors in industries.
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Affiliation(s)
- Sujin Jeba Kumar Thangaswamy
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), Council of Scientific and Industrial Research (CSIR), Trivandrum, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR, Ghaziabad, India
| | - Mushtaq A Mir
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Arumugam Muthu
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), Council of Scientific and Industrial Research (CSIR), Trivandrum, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR, Ghaziabad, India
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18
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Zhu B, Zhang LY, Liu JL, Zhang XM, Li XS, Zhu AM. TiO 2-supported Au-Ag plasmonic nanocatalysts achieved by plasma restructuring and activation. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123508. [PMID: 32721641 DOI: 10.1016/j.jhazmat.2020.123508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/29/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Plasmonic Au-Ag/TiO2 bimetallic nanocatalyst is regarded as a promising visible-light (VL) photocatalyst due to its wide light absorption and potentially enhanced activity. For its preparation, Au precursors usually contain Cl and co-impregnation/co-deposition suffers from AgCl precipitation, and consequently Au and Ag have to be sequentially supported. However, Au and Ag species of the sequential preparation are individually isolated and difficult to be homogeneously mixed. Here we report an Au-Ag plasmonic nanocatalyst achieved by plasma restructuring and activation from the sequential preparation. The isolated cationic Au and Ag species on the sequentially-prepared Au-Ag/TiO2 sample are restructured to be homogeneously mixed and highly activated by O2 plasma, which can be partially auto-reduced to Au-Ag bimetallic nanoparticles within the induction period of a few minutes in VL photocatalytic oxidation of CO. The Au-Ag plasmonic nanocatalyst exhibits a strongly enhanced activity in the VL photocatalytic reaction. The contribution of O2 plasma treatment and the enhancement mechanism for the Au-Ag plasmonic nanocatalyst are disclosed.
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Affiliation(s)
- Bin Zhu
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Lu-Yao Zhang
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Jing-Lin Liu
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian, 116026, China; Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Xiao-Min Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiao-Song Li
- Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Ai-Min Zhu
- Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian, 116024, China.
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19
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Zhao G, Zou J, Zhang T, Li C, Zhou S, Jiao F. Recent progress on removal of indoor air pollutants by catalytic oxidation. REVIEWS ON ENVIRONMENTAL HEALTH 2020; 35:311-321. [PMID: 32598323 DOI: 10.1515/reveh-2019-0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Indoor air pollutant is a serious problem due to its wide diversity and variability. The harmful substances from construction materials and decorative materials may make the indoor air pollution become more and more serious and cause serious health problems. In this paper, the review summarizes the advanced technologies for the removal of indoor air pollutants and the development in the treatment of indoor air pollution by catalytic oxidation technologies. Meanwhile, some catalytic oxidation mechanisms of indoor air pollutants are proposed in detail, and suggestions for the indoor air pollution treatment are also presented, in order to provide some reference for subsequent research.
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Affiliation(s)
- Guoqing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Jiao Zou
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Taiheng Zhang
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Caifeng Li
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Shu Zhou
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Feipeng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
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20
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Adamczyk Z, Sadowska M, Żeliszewska P. Applicability of QCM-D for Quantitative Measurements of Nano- and Microparticle Deposition Kinetics: Theoretical Modeling and Experiments. Anal Chem 2020; 92:15087-15095. [PMID: 32957771 PMCID: PMC7675609 DOI: 10.1021/acs.analchem.0c03115] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
![]()
A new theoretical model is formulated
for the quantitative analysis
of quartz crystal microbalance (QCM) response for heterogeneous loads
consisting of nano- and microparticles. The influence of particle
coverage and structure is described using a universal correction function
in an ab initio manner. Explicit analytical expressions
for the frequency and dissipation shifts are derived for the entire
range of particle size under the rigid contact regime. The solvent
coupling functions are also calculated to determine the dry coverage
using the QCM measurements. These expressions furnish the upper limit
of the QCM signal, which can be attained for a sensor providing perfect
adhesion of particles. Correction functions accounting for the finite
adhesion strength (soft contact regime) are also derived. The theoretical
results are confronted with QCM and atomic force microscopy measurements
of positively charged polymer particle deposition on silica sensors.
The main features of the theoretical model are confirmed, especially
the abrupt decrease in the QCM wet mass with the particle coverage
and the overtone number. The latter effect is especially pronounced
for microparticles under the soft contact regime, where the higher-number
overtones produce a negligible QCM signal. These results represent
a useful reference data for the interpretation of protein and bioparticles,
for example, virus and bacteria attachment processes to various substrates.
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Affiliation(s)
- Zbigniew Adamczyk
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Marta Sadowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Paulina Żeliszewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
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21
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Mayet N, Servat K, Kokoh KB, Napporn TW. Electrochemical Oxidation of Carbon Monoxide on Unsupported Gold Nanospheres in Alkaline Medium. Electrocatalysis (N Y) 2020. [DOI: 10.1007/s12678-020-00626-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Kaskow I, Sobczak I, Yang CM, Ziolek M. Bimetallic gold-silver catalysts based on ZnO and Zn/SBA-15 – The effect of various treatments on surface and catalytic properties. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Kaskow I, Wojtaszek-Gurdak A, Sobczak I. Methanol oxidation on AuAg-Zn/MCM-36 – The effect of catalyst components and pretreatment. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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One-step chemical synthesis of Ag–Au alloy nanoparticles for modulating the catalytic hydrogenation reaction. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01523-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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25
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Meng X, Yan R, Zuo S, Zhang Y, Li Z, Wang H. Synthesis of Bimetallic Au-Ag/CMK-3 Catalysts and Their Catalytic Activity for the Oxidation of Amino Alcohol. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangzhan Meng
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Ruiyi Yan
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Shouwei Zuo
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yongqiang Zhang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Zengxi Li
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hui Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P.R. China
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26
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A novel modification method via in-situ reduction of AuAg bimetallic nanoparticles by polydopamine on carbon fiber microelectrode for H2O2 detection. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104595] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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27
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Xu C, Zhang X, Yang Z. Efficient metal overlayer catalysts on the Nb 2C monolayer for CO oxidation from first-principles screening. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:175201. [PMID: 31918420 DOI: 10.1088/1361-648x/ab69a0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Based on the first-principles calculation, the configurations of different metal overlayers on the monolayer Nb2C (MXene) (MML/Nb2C) (M = Rh, Ir, Pd, Pt, Ag, Au) were studied aiming to find a kind of complex system with high CO-tolerance and high CO conversion efficiency. Combined with the stability of the composite systems and their adsorption properties on small gas molecules, AgML/Nb2C was screened out and further tested for CO oxidation reaction. By comparing the energy barriers of different reaction pathways, we concluded that CO oxidation reaction could be carried out on AgML/Nb2C var the LH mechanism with a small energy barrier of 0.35 eV. The rate-determining step was the oxidation of CO by the adsorbed oxygen atom. The AgML/Nb2C showed good activity for CO oxidation, which would provide a theoretical basis for designing the electrode material for the proton exchange membrane fuel cells (PEMFCs).
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Affiliation(s)
- Chang Xu
- School of Physics, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
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28
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Zhu W, Guo X, Wu L, Yang H. Simulation of the Light Transmittance in Macroporous Silica. MATERIALS 2020; 13:ma13071635. [PMID: 32244830 PMCID: PMC7178299 DOI: 10.3390/ma13071635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 11/16/2022]
Abstract
This paper focuses on the light transmittance of macroporous silica as a photocatalyst carrier. In addition to the characteristics of photocatalysts, the structure of porous bulk is also important since it affects the propagation of light. Realistic porous structures are generated by a Voronoi-based approach. Four morphological parameters are highly controlled during generating, that is, porosity, coefficient of variation, diameter ratio and normalized curvature. Finite element method (FEM) is used to simulate the propagation of light in the porous models in the visible light range. The intensity shows a quadratic decrease with the increase of the depth of light propagation. The influences of the morphological parameters on the light transmittance are analysed. It turns out that the porosity has a great influence on the light transmittance while the coefficient of variation and the diameter ratio have small ones. Moreover, the influence of the normalized curvature is little. Besides, the effect of the wavelength of visible light can not be ignored. With the simulation, the depth of visible light entering the porous silica can be estimated, which is challenging to access experimentally.
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Affiliation(s)
- Wenqi Zhu
- Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China; (W.Z.); (L.W.)
| | - Xingzhong Guo
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;
| | - Lan Wu
- Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China; (W.Z.); (L.W.)
| | - Hui Yang
- Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310058, China; (W.Z.); (L.W.)
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;
- Research Institute of Zhejiang University-Taizhou, Taizhou 318000, China
- Correspondence: ; Tel.: +86-0571-8697-1539
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29
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Yao D, Xu T, Yuan J, Tao Y, He G, Chen H. Graphene Based Copper‐Nickel Bimetal Nanocomposite: Magnetically Separable Catalyst for Reducing Hexavalent Chromium. ChemistrySelect 2020. [DOI: 10.1002/slct.201904931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dachuan Yao
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou UniversityKey Laboratory of Advanced Catalytic Materials and TechnologyAdvanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou University Changzhou Jiangsu Province 213164 China
| | - Tingting Xu
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou UniversityKey Laboratory of Advanced Catalytic Materials and TechnologyAdvanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou University Changzhou Jiangsu Province 213164 China
| | - Jingjing Yuan
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou UniversityKey Laboratory of Advanced Catalytic Materials and TechnologyAdvanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou University Changzhou Jiangsu Province 213164 China
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing Jiangsu 210094 China
| | - Yingrui Tao
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou UniversityKey Laboratory of Advanced Catalytic Materials and TechnologyAdvanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou University Changzhou Jiangsu Province 213164 China
| | - Guangyu He
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou UniversityKey Laboratory of Advanced Catalytic Materials and TechnologyAdvanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou University Changzhou Jiangsu Province 213164 China
| | - Haiqun Chen
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou UniversityKey Laboratory of Advanced Catalytic Materials and TechnologyAdvanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou University Changzhou Jiangsu Province 213164 China
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30
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Kavyani S, Baharfar R. Design and characterization of Fe
3
O
4
/GO/Au‐Ag nanocomposite as an efficient catalyst for the green synthesis of spirooxindole‐dihydropyridines. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5560] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sara Kavyani
- Faculty of ChemistryUniversity of Mazandaran 4741695447 Babolsar Iran
| | - Robabeh Baharfar
- Faculty of ChemistryUniversity of Mazandaran 4741695447 Babolsar Iran
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31
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Smirnov MY, Kalinkin AV, Bukhtiyarov VI. XPS Analysis of the Spacial Distribution of Metals in Au-Ag Bimetallic Particles Considering the Effect of Particle Size Distribution. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Luo M, Liang Z, Chen M, Peera SG, Liu C, Yang H, Qi X, Liu J, Liang T. Catalytic oxidation mechanisms of carbon monoxide over single- and double-vacancy Mn-embedded graphene. NEW J CHEM 2020. [DOI: 10.1039/d0nj01500h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
CO oxidation on MnC3 and MnC4 has fast kinetics and a low energy barrier.
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Affiliation(s)
- Mingming Luo
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Zhao Liang
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Mingwei Chen
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Shaik Gouse Peera
- Department of Environmental Science and Engineering
- Keimyung University
- Daegu 42601
- Republic of South Korea
| | - Chao Liu
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
| | - Hui Yang
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Xiaopeng Qi
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Juan Liu
- Department of Mining and Materials Engineering
- McGill University
- Montreal
- Canada
| | - Tongxiang Liang
- Engineering Research Center for Hydrogen Energy Materials and Devices, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology
- Ganzhou 341000
- China
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33
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Smirnov MY, Kalinkin AV, Klembovsky IO, Bukhtiyarov VI. Changes in the Spatial Distribution of Metals Under the Influence of Reaction Medium in the System Formed by a Gold Film Supported on the Surface of a Silver Foil. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619110106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Li N, Chen W, Shen J, Chen S, Liu X. Synthesis of graphene quantum dots stabilized bimetallic AgRh nanoparticles and their applications. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.119031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Zhang L, Pan J, Long Y, Li J, Li W, Song S, Shi Z, Zhang H. CeO 2 -Encapsulated Hollow Ag-Au Nanocage Hybrid Nanostructures as High-Performance Catalysts for Cascade Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903182. [PMID: 31490623 DOI: 10.1002/smll.201903182] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/28/2019] [Indexed: 06/10/2023]
Abstract
Inspired by bio-enzymes, multistep cascade reactions are highly attractive in catalysis. Despite extensive research in recent years, it remains a challenge to promote the stability and activity of catalysts. Here, well-defined core-shell structured Ag-Au nanocage@CeO2 (Ag-Au NC@CeO2 ) are designed by a simple and facile self-assembly method. The results indicate that the Ag-Au NC@CeO2 has glucose oxidase-like activity and intrinsic peroxidase-like activity at the same time. As expected, Ag-Au NC@CeO2 hybrid nanomaterials exhibit cascade reactions activity. Moreover, the hybrid materials are promising to detect glucose without bio-enzymes. This research has potential applications in biomedicine and biomimetic catalysis.
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Affiliation(s)
- Lingling Zhang
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Jing Pan
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yan Long
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Jian Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Wei Li
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- Department of Gastric and Colorectal Surgery, The First Hospital of Jilin University, Jilin University, Changchun, 130021, P. R. China
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Zhan Shi
- College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
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36
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Xu J, Luo F, Li J, Yang K, Li H. Poly (amic acid) Salt‐stabilized Au‐Ag Alloy Nanoparticles as Efficient and Recyclable Quasi‐homogeneous Catalysts for the Imines Synthesis from Alcohols and Amines in Water. ChemistrySelect 2019. [DOI: 10.1002/slct.201902475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiali Xu
- School of Materials Science and EngineeringCentral South University 932 South Lushan Road Changsha 410083 China
| | - Faguo Luo
- School of Materials Science and EngineeringCentral South University 932 South Lushan Road Changsha 410083 China
| | - Jun Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and ChemistryHunan University of Technology 88 Taishan Road Zhuzhou 412007 China
| | - Ke Yang
- School of Materials Science and EngineeringCentral South University 932 South Lushan Road Changsha 410083 China
| | - Hengfeng Li
- School of Materials Science and EngineeringCentral South University 932 South Lushan Road Changsha 410083 China
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37
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Stucchi M, Jouve A, Villa A, Nagy G, Németh M, Evangelisti C, Zanella R, Prati L. Gold‐Silver Catalysts: Ruling Factors for Establishing Synergism. ChemCatChem 2019. [DOI: 10.1002/cctc.201900591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marta Stucchi
- Università degli Studi di MilanoDipartimento di Chimica via C. Golgi 19 20133 Milano Italy
| | - Andrea Jouve
- Università degli Studi di MilanoDipartimento di Chimica via C. Golgi 19 20133 Milano Italy
| | - Alberto Villa
- Università degli Studi di MilanoDipartimento di Chimica via C. Golgi 19 20133 Milano Italy
| | - Gergely Nagy
- Centre for Energy ResearchSurface Chemistry and Catalysis Department PO Box 49 H-1525 Budapest Hungary
| | - Miklòs Németh
- Centre for Energy ResearchSurface Chemistry and Catalysis Department PO Box 49 H-1525 Budapest Hungary
| | - Claudio Evangelisti
- CNR, Istituto di Scienze e Tecnologie Molecolari (ISTM) via G. Fantoli 16/15, 20138 Milano Italy
| | - Rodolfo Zanella
- Instituto de Ciencias Aplicadas y TecnologíaUniversidad Nacional Autónoma de México Circuito Exterior S/N, C. U. 04510 Mexico City Mexico
| | - Laura Prati
- Università degli Studi di MilanoDipartimento di Chimica via C. Golgi 19 20133 Milano Italy
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38
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Ismail AM, Csapó E, Janáky C. Correlation between the work function of Au–Ag nanoalloys and their electrocatalytic activity in carbon dioxide reduction. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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39
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Enhancement of Single Molecule Raman Scattering using Sprouted Potato Shaped Bimetallic Nanoparticles. Sci Rep 2019; 9:10771. [PMID: 31341207 PMCID: PMC6656737 DOI: 10.1038/s41598-019-47179-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/05/2019] [Indexed: 02/07/2023] Open
Abstract
Herein, for the first time, we report the single molecule surface enhanced resonance Raman scattering (SERRS) and surface enhanced Raman scattering (SERS) spectra with high signal to noise ratio (S/N) using plasmon-active substrates fabricated by sprouted potato shaped Au-Ag bimetallic nanoparticles, prepared using a new one-step synthesis method. This particular shape of the nanoparticles has been obtained by fixing the amount of Au and carefully adjusting the amount of Ag. These nanoparticles have been characterized using scanning electron microscopy, extinction spectroscopy, and glancing angle X-ray diffraction. The single molecule sensitivity of SERS substrates has been tested with two different molecular Raman probes. The origin of the electromagnetic enhancement of single molecule Raman scattering in the presence of sprouted shape nanoparticles has been explained using quasi-static theory as well as finite element method (FEM) simulations. Moreover, the role of (i) methods for binding Raman probe molecules to the substrate, (ii) concentration of molecules, and (iii) Au-Ag ratio on the spectra of molecules has been studied in detail.
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40
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Synthesis and Characterization of Te Nanotubes Decorated with Pt Nanoparticles for a Fuel Cell Anode/Cathode Working at a Neutral pH. Catalysts 2019. [DOI: 10.3390/catal9040328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In fuel-cell technology development, one of the most important objectives is to minimize the amount of Pt, the most employed material as an oxygen reduction and methanol oxidation electro-catalyst. In this paper, we report the synthesis and characterization of Te nanotubes (TeNTs) decorated with Pt nanoparticles, readily prepared from stirred aqueous solutions of PtCl2 containing a suspension of TeNTs, and ethanol acting as a reducing agent, avoiding the use of any hydrophobic surfactants such as capping stabilizing substance. The obtained TeNTs decorated with Pt nanoparticles (TeNTs/PtNPs) have been fully characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area diffraction patterns (SAD), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV). We demonstrated that the new material can be successfully employed in fuel cells, either as an anodic (for methanol oxidation reaction) or a cathodic (for oxygen reduction reaction) electrode, with high efficiency in terms of related mass activities and on-set improvement. Remarkably, the cell operates in aqueous electrolyte buffered at pH 7.0, thus, avoiding acidic or alkaline conditions that might lead to, for example, Pt dissolution (at low pH), and paving the way for the development of biocompatible devices and on-chip fuel cells.
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41
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Tailoring the Size and Shape of Colloidal Noble Metal Nanocrystals as a Valuable Tool in Catalysis. CATALYSIS SURVEYS FROM ASIA 2019. [DOI: 10.1007/s10563-019-09271-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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42
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A comparative study of graphite and CNT supported Au-Ag, Au-Pd, Au-Pt and Au-Rh nanoalloys using MD simulation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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43
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Smirnov MY, Kalinkin AV, Bukhtiyarov VI. Using Xps Data for Determining Spatial Distribution of Metals in Bimetallic Particles Supported on a Flat Surface. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476618080139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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45
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Huang B, Kobayashi H, Yamamoto T, Toriyama T, Matsumura S, Nishida Y, Sato K, Nagaoka K, Haneda M, Xie W, Nanba Y, Koyama M, Wang F, Kawaguchi S, Kubota Y, Kitagawa H. A CO Adsorption Site Change Induced by Copper Substitution in a Ruthenium Catalyst for Enhanced CO Oxidation Activity. Angew Chem Int Ed Engl 2018; 58:2230-2235. [PMID: 30517769 DOI: 10.1002/anie.201812325] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Indexed: 01/08/2023]
Abstract
Ru is an important catalyst in many types of reactions. Specifically, Ru is well known as the best monometallic catalyst for oxidation of carbon monoxide (CO) and has been practically used in residential fuel cell systems. However, Ru is a minor metal, and the supply risk often causes violent fluctuations in the price of Ru. Performance-improved and cost-reduced solid-solution alloy nanoparticles of the Cu-Ru system for CO oxidation are now presented. Over the whole composition range, all of the Cux Ru1-x nanoparticles exhibit significantly enhanced CO oxidation activities, even at 70 at % of inexpensive Cu, compared to Ru nanoparticles. Only 5 at % replacement of Ru with Cu provided much better CO oxidation activity, and the maximum activity was achieved by 20 at % replacement of Ru by Cu. The origin of the high catalytic performance was found as CO site change by Cu substitution, which was investigated using in situ Fourier transform infrared spectra and theoretical calculations.
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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 Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,The Ultramicroscopy Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yoshihide Nishida
- Department of Integrated Science and Technology, Faculty of Science and Technology, Oita University, 700 Danno-haru, Oita, 870-1192, Japan
| | - Katsutoshi Sato
- Department of Integrated Science and Technology, Faculty of Science and Technology, Oita University, 700 Danno-haru, Oita, 870-1192, Japan.,Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto, 615-8245, Japan
| | - Katsutoshi Nagaoka
- Department of Integrated Science and Technology, Faculty of Science and Technology, Oita University, 700 Danno-haru, Oita, 870-1192, Japan
| | - Masaaki Haneda
- Advanced Ceramics Research Center, 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
| | - Wei Xie
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yusuke Nanba
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,Global Research Center for Environment and Energy Based on Nanomaterials Science, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,Global Research Center for Environment and Energy Based on Nanomaterials Science, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Fenglong Wang
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Current address: School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - 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 Center, 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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46
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Huang B, Kobayashi H, Yamamoto T, Toriyama T, Matsumura S, Nishida Y, Sato K, Nagaoka K, Haneda M, Xie W, Nanba Y, Koyama M, Wang F, Kawaguchi S, Kubota Y, Kitagawa H. A CO Adsorption Site Change Induced by Copper Substitution in a Ruthenium Catalyst for Enhanced CO Oxidation Activity. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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 Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
- The Ultramicroscopy Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
- INAMORI Frontier Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
| | - Yoshihide Nishida
- Department of Integrated Science and Technology Faculty of Science and Technology Oita University 700 Danno-haru Oita 870-1192 Japan
| | - Katsutoshi Sato
- Department of Integrated Science and Technology Faculty of Science and Technology Oita University 700 Danno-haru Oita 870-1192 Japan
- Elements Strategy Initiative for Catalysts and Batteries Kyoto University 1–30 Goryo-Ohara, Nishikyo-ku Kyoto 615-8245 Japan
| | - Katsutoshi Nagaoka
- Department of Integrated Science and Technology Faculty of Science and Technology Oita University 700 Danno-haru Oita 870-1192 Japan
| | - Masaaki Haneda
- Advanced Ceramics Research Center 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
| | - Wei Xie
- INAMORI Frontier Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
| | - Yusuke Nanba
- INAMORI Frontier Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
- Global Research Center for Environment and Energy Based on Nanomaterials Science National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
- Global Research Center for Environment and Energy Based on Nanomaterials Science National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Fenglong Wang
- Division of Chemistry Graduate School of Science Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
- Current address: School of Materials Science and Engineering Shandong University Jinan 250061 China
| | - 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 Center 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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47
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A Review of Dendrimer-Encapsulated Metal Nanocatalysts Applied in the Fine Chemical Transformations. Catal Letters 2018. [DOI: 10.1007/s10562-018-2584-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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48
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Guo M, Peng J, Yang Q, Li C. Highly Active and Selective RuPd Bimetallic NPs for the Cleavage of the Diphenyl Ether C–O Bond. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03253] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miao Guo
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Juan Peng
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Qihua Yang
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Can Li
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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49
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Mandal R, Baranwal A, Srivastava A, Chandra P. Evolving trends in bio/chemical sensor fabrication incorporating bimetallic nanoparticles. Biosens Bioelectron 2018; 117:546-561. [DOI: 10.1016/j.bios.2018.06.039] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/16/2018] [Accepted: 06/20/2018] [Indexed: 01/28/2023]
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50
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Hassanin HAM, Koko M, Abdalla M, Mu W, Jiang B. Detarium microcarpum: A novel source of nutrition and medicine: A review. Food Chem 2018; 274:900-906. [PMID: 30373026 DOI: 10.1016/j.foodchem.2018.09.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 08/09/2018] [Accepted: 09/11/2018] [Indexed: 12/22/2022]
Abstract
Detarium microcarpum is a plant indigenous to Africa, which occurs naturally in many African countries, particularly in savannah regions. Its leaves and fruits are used mainly as food and as folk medicine. It has anti-diabetic, antioxidant, and hepatitis C inhibitor properties and has been traditionally utilised in cancer treatment. This review examines published work on the nutritional, pharmacological, and traditional uses of Detarium microcarpum. This plant may become valuable if the fruit, stems, roots, and leaves are extracted for nutraceutical purposes.
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Affiliation(s)
- Hinawi A M Hassanin
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Marwa Koko
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Mohammed Abdalla
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Bo Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China.
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