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Tsou SJ, Mazurkiewicz-Pawlicka M, Chiou YJ, Lin CK. Effect of Synchrotron X-ray Irradiation Time on the Particle Size and DFAFC Performance of Pd/CNT Catalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:162. [PMID: 38251127 PMCID: PMC10820203 DOI: 10.3390/nano14020162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024]
Abstract
Global energy sources are limited, and energy requirements are ever-increasing due to the demand for developments in human life and technology. The environmentally friendly direct formic acid fuel cell (DFAFC) is an attractive electronic device due to its clean energy. In a DFAFC, an anodic catalyst plays an important role concerning the oxidation pathway and activity. In the present study, palladium (Pd) was synthesized by synchrotron X-ray photoreduction using various irradiation times (0.5-4 min) to control the particle size. An acid-treated carbon nanotube (A-CNT) was used as the template for Pd deposition. The A-CNT and Pd/A-CNT were examined using scanning electron microscopy, X-ray diffraction, Raman spectroscopy, and transmission electron microscopy to reveal the microstructural characteristics. Electrochemical evaluation, electrocatalytic activity, and the DFAFC performance of so-obtained Pd/A-CNT catalysts were investigated. The experiment's results showed that the Pd/A-CNT-2 (i.e., synchrotron photoreduction for 2 min) underwent a direct formic acid oxidation pathway and possessed a high ECSA value of 62.59 m2/gPd and superior electrocatalytic activity of 417.7 mA/mgPd. In a single DFAFC examination, the anodic Pd/A-CNT-2 catalyst had a power density of 106.2 mW/mgPd and a relatively long lifetime of 2.91 h. Pd/A-CNT-2 anodic catalysts synthesized by surfactant-free synchrotron X-ray photoreduction with a rapid processing time (2 min) are potential candidates for DFAFC applications.
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Affiliation(s)
- Sheng-Jung Tsou
- Department of Chemical Engineering and Biotechnology, Tatung University, Taipei 104-327, Taiwan;
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110-301, Taiwan
| | | | - Yuh-Jing Chiou
- Department of Chemical Engineering and Biotechnology, Tatung University, Taipei 104-327, Taiwan;
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110-301, Taiwan
| | - Chung-Kwei Lin
- Research Center of Digital Oral Science and Technology, College of Oral Medicine, Taipei Medical University, Taipei 110-301, Taiwan
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110-301, Taiwan
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2
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Nudelman R, Zuarets S, Lev M, Gavriely S, Meshi L, Zucker I, Richter S. One-pot green bio-assisted synthesis of highly active catalytic palladium nanoparticles in porcine gastric mucin for environmental applications. NANOSCALE ADVANCES 2023; 5:6115-6122. [PMID: 37941943 PMCID: PMC10628991 DOI: 10.1039/d3na00385j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 09/05/2023] [Indexed: 11/10/2023]
Abstract
In this work, palladium nanoparticles were synthesized using one-pot synthesis utilizing porcine gastric mucin glycoproteins as reducing and capping agents. It is shown that the particles exhibited noticeable catalytic activity through both nitrophenol reduction and Suzuki-Miyaura coupling reactions. The catalytic performance was demonstrated with exceptionally high product yield, a fast reaction rate, and low catalyst use. The palladium-mucin composites obtained could be used in particle solution and as hydrogel catalysts to increase their reusability for at least ten reaction cycles with minimum loss in their catalytic effectiveness.
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Affiliation(s)
- Roman Nudelman
- Department of Materials Science and Engineering, University Center for Nanoscience and Nanotechnology, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
| | - Shir Zuarets
- Department of Materials Science and Engineering, University Center for Nanoscience and Nanotechnology, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
| | - Meiron Lev
- Department of Materials Science and Engineering, University Center for Nanoscience and Nanotechnology, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
| | - Shira Gavriely
- Department of Materials Science and Engineering, University Center for Nanoscience and Nanotechnology, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
- School of Mechanical Engineering, The Porter School of Environmental and Earth Sciences, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
| | - Louisa Meshi
- Department of Materials Engineering, Ben-Gurion University of the Negev PO Box 653 Beer-Sheva 84105 Israel
| | - Ines Zucker
- School of Mechanical Engineering, The Porter School of Environmental and Earth Sciences, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
| | - Shachar Richter
- Department of Materials Science and Engineering, University Center for Nanoscience and Nanotechnology, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University 69978 Tel-Aviv Israel
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3
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Ipadeola AK, Abdelgawad A, Salah B, Abdullah AM, Eid K. Interfacial Engineering of Porous Pd/M (M = Au, Cu, Mn) Sponge-like Nanocrystals with a Clean Surface for Enhanced Alkaline Electrochemical Oxidation of Ethanol. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13830-13840. [PMID: 37724885 DOI: 10.1021/acs.langmuir.3c01285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
The interfacial engineering of Pd-based alloys (i.e., PdM with distinct morphologies, compositions, and strain defects) is an efficient way for enhanced catalytic activity; however, it remains a grand challenge to fabricate such alloys in aqueous solutions without heating, organic solvents, and multiple reaction steps. Herein, we present a simple, aqueous-phase, one-step, and ultrafast approach for the interfacial engineering of surfactant-free porous PdM (M = Cu, Au, and Mn) nanocrystals with well-controlled spongy-like morphology and compositions. The electronic interaction in PdM nanocrystals and their effect on the alkaline electrochemical ethanol oxidation reaction (EOR) are investigated using XRD, XPS, and electrochemical tests. Notably, integrating M metals into Pd atoms results in upshifting the d-band center of Pd and subsequently modulating the EOR activity and stability substantially. The EOR mass activity (10.78 A/mgPd (6.93 A/mgPdCu)) of PdCu was 1.83, 3.09, 4.51, and 53.90 times higher than those of AuPd (5.90 A/mgPd (3.27 A/mgAuPd)), PdMn (3.48 A/mgPd (3.19 A/mgPdMn)), Pd (2.39 A/mgPd), and Pd/C (0.20 A/mgPd), respectively, besides substantial durability after 1000 cycles. This is due to the porous two-dimensional morphology, a low synergetic effect, higher interfacial interaction, and greater active surface area of PdCu, besides a high Cu content with more oxophilicity that facilitates activation/dissociation of H2O to generate -OH species needed for quick EOR electrocatalysis. The electrochemical impedance spectroscopy (EIS) reveals better electrolyte/electrode interfacial interaction and lower charge transfer resistance on PdCu. The EOR activity of PdCu porous sponge-like nanocrystals was superior to all previously reported Pd-based alloys for electrochemical EOR. This study indicates that binary Pd-based catalysts with less synergetic effect are preferred for boosting the EOR activity, which could help in manipulating the surface properties of Pd-based alloys to optimize EOR performance.
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Affiliation(s)
- Adewale K Ipadeola
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar
- Gas Processing Center(GPC), College of Engineering, Qatar University, Doha 2713, Qatar
| | - Ahmed Abdelgawad
- Gas Processing Center(GPC), College of Engineering, Qatar University, Doha 2713, Qatar
| | - Belal Salah
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar
- Gas Processing Center(GPC), College of Engineering, Qatar University, Doha 2713, Qatar
| | | | - Kamel Eid
- Gas Processing Center(GPC), College of Engineering, Qatar University, Doha 2713, Qatar
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Sadjadi S, Heydari A. Palladated Cyclodextrin Nanosponge-Alginate Dual Bead as an Efficient Catalyst for Hydrogenation of Nitroarenes in Aqueous Solution. Polymers (Basel) 2023; 15:3240. [PMID: 37571132 PMCID: PMC10422427 DOI: 10.3390/polym15153240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
In this study, we present a novel composite material consisting of β-cyclodextrin nanosponge and sodium alginate, used as a support for the immobilization of palladium (Pd) nanoparticles. The composite alginate-cyclodextrin nanosponge beads were prepared, taking advantage of the 3D polymeric network and β-cyclodextrin cavity of the nanosponge. These beads exhibited excellent encapsulation capabilities for hydrophobic substrates, allowing their transfer in aqueous media. The cyclodextrin nanosponge served as a stabilizer for Pd nanoparticles and facilitated phase transfer. Additionally, the sodium alginate bead contributed to the robustness of the structure and improved the recovery and recyclability of the composite material. Comparative studies with control catalysts confirmed the beneficial effect of incorporating cyclodextrin nanosponge within alginate beads, particularly for more hydrophobic substrates. Optimization of reaction conditions revealed that employing 0.03 g of catalyst per mmol of nitroarene at 45 °C resulted in the maximum yield within 90 min. Evaluation of the substrate scope demonstrated the hydrogenation capability of various substrates with different electronic properties under the developed protocol. Notably, the nitro group was selectively reduced in substrates featuring competing functionalities. Furthermore, the recyclability and stability of the composite catalyst were confirmed, making it a promising candidate for sustainable catalysis.
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Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, P.O. Box 14975-112, Tehran 14977-13115, Iran
| | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia;
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Salah B, Ipadeola AK, Abdullah AM, Ghanem A, Eid K. Self-Standing Pd-Based Nanostructures for Electrocatalytic CO Oxidation: Do Nanocatalyst Shape and Electrolyte pH Matter? Int J Mol Sci 2023; 24:11832. [PMID: 37511591 PMCID: PMC10380336 DOI: 10.3390/ijms241411832] [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: 05/22/2023] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Tailoring the shape of Pd nanocrystals is one of the main ways to enhance catalytic activity; however, the effect of shapes and electrolyte pH on carbon monoxide oxidation (COOxid) is not highlighted enough. This article presents the controlled fabrication of Pd nanocrystals in different morphologies, including Pd nanosponge via the ice-cooling reduction of the Pd precursor using NaBH4 solution and Pd nanocube via ascorbic acid reduction at 25 °C. Both Pd nanosponge and Pd nanocube are self-standing and have a high surface area, uniform distribution, and clean surface. The electrocatalytic CO oxidation activity and durability of the Pd nanocube were significantly superior to those of Pd nanosponge and commercial Pd/C in only acidic (H2SO4) medium and the best among the three media, due to the multiple adsorption active sites, uniform distribution, and high surface area of the nanocube structure. However, Pd nanosponge had enhanced COOxid activity and stability in both alkaline (KOH) and neutral (NaHCO3) electrolytes than Pd nanocube and Pd/C, attributable to its low Pd-Pd interatomic distance and cleaner surface. The self-standing Pd nanosponge and Pd nanocube were more active than Pd/C in all electrolytes. Mainly, the COOxid current density of Pd nanocube in H2SO4 (5.92 mA/cm2) was nearly 3.6 times that in KOH (1.63 mA/cm2) and 10.3 times that in NaHCO3 (0.578 mA/cm2), owing to the greater charge mobility and better electrolyte-electrode interaction, as evidenced by electrochemical impedance spectroscopy (EIS) analysis. Notably, this study confirmed that acidic electrolytes and Pd nanocube are highly preferred for promoting COOxid and may open new avenues for precluding CO poisoning in alcohol-based fuel cells.
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Affiliation(s)
- Belal Salah
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha 2713, Qatar
| | - Adewale K Ipadeola
- Center for Advanced Materials, Qatar University, Doha 2713, Qatar
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha 2713, Qatar
| | | | - Alaa Ghanem
- PVT-Lab, Production Department, Egyptian Petroleum Research Institute, Cairo 11727, Egypt
| | - Kamel Eid
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha 2713, Qatar
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6
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Ipadeola AK, Salah B, Ghanem A, Ahmadaliev D, Sharaf MA, Abdullah AM, Eid K. Unveiling the effect of shapes and electrolytes on the electrocatalytic ethanol oxidation activity of self-standing Pd nanostructures. Heliyon 2023; 9:e16890. [PMID: 37484255 PMCID: PMC10360946 DOI: 10.1016/j.heliyon.2023.e16890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 07/25/2023] Open
Abstract
Morphologically controlled Pd-based nanocrystals are the most efficient strategies for improving the electrocatalytic ethanol oxidation reaction (EOR) performance; however, their morphological-EOR activity relationship and effect of electrolytes at a wide pH range are still ambiguous. Here, we have synthesized porous self-standing Pd clustered nanospheres (Pd-CNSs) and Pd nanocubes (Pd-NCBs) for the EOR in acidic (H2SO4), alkaline (KOH), and neutral (NaHCO3) electrolytes compared to commercial spherical-like Pd/C catalysts. The fabrication process comprises the ice-cooling reduction of Pd precursor by sodium borohydride (NaBH4) and l-ascorbic acid to form Pd-CNSs and Pd-NCBs, respectively. The EOR activity of Pd-CNSs significantly outperformed those of Pd-NCBs, and Pd/C in all electrolytes, but the EOR activity was better in KOH than in H2SO4 and NaHCO3. This is due to the 3D porous clustered nanospherical morphology that makes Pd active centers more accessible and maximizes their utilization during EOR. The EOR specific/mass activities of Pd-CNSs reached (8.51 mA/cm2/2.39 A/mgPd) in KOH, (2.98 mA/cm2/0.88 A/mgPd) in H2SO4, and (0.061 mA/cm2/0.0083 A/mgPd) in NaHCO3, in addition to stability after 1000 cycles. This study affirms that porous 3D spherical Pd nanostructures are preferred for the EOR than those of 0D spherical-like and multi-dimensional cube-like nanostructures.
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Affiliation(s)
- Adewale K. Ipadeola
- Center for Advanced Materials, Qatar University, Doha, 2713, Qatar
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha, 2713, Qatar
| | - Belal Salah
- Center for Advanced Materials, Qatar University, Doha, 2713, Qatar
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha, 2713, Qatar
| | - Alaa Ghanem
- PVT-Lab, Production Department, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt
| | - Doniyorbek Ahmadaliev
- Department of Chemical & Material Science Engineering of School of Engineering, New Uzbekistan University, Tashkent, 100007, Uzbekistan
| | - Mohammed A. Sharaf
- Department of Maritime Transportation Management Engineering, Istanbul University-Cerrahpasa, 34320, Avcilar/Istanbul, Turkey
- Mericler Inc. Educational Consulting, Esentepe, Yazarlar Sk. No 21, 34381, Sisli/Istanbul, Turkey
| | | | - Kamel Eid
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha, 2713, Qatar
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7
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Martín CDMG, García JIH, Bonardd S, Díaz DD. Lignin-Based Catalysts for C-C Bond-Forming Reactions. Molecules 2023; 28:molecules28083513. [PMID: 37110747 PMCID: PMC10141373 DOI: 10.3390/molecules28083513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Carbon-carbon (C-C) bond formation is the key reaction in organic synthesis to construct the carbon framework of organic molecules. The continuous shift of science and technology toward eco-friendly and sustainable resources and processes has stimulated the development of catalytic processes for C-C bond formation based on the use of renewable resources. In this context, and among other biopolymer-based materials, lignin has attracted scientific attention in the field of catalysis during the last decade, either through its acid form or as a support for metal ions and metal nanoparticles that drive the catalytic activity. Its heterogeneous nature, as well as its facile preparation and low cost, provide competitive advantages over other homogeneous catalysts. In this review, we have summarized a variety of C-C formation reactions, such as condensations, Michael additions of indoles, and Pd-mediated cross-coupling reactions that were successfully carried out in the presence of lignin-based catalysts. These examples also involve the successful recovery and reuse of the catalyst after the reaction.
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Affiliation(s)
- Cristina Del Mar García Martín
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
| | - José Ignacio Hernández García
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain
| | - Sebastián Bonardd
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain
| | - David Díaz Díaz
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain
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Chai K, Shen R, Qi T, Chen J, Su W, Su A. Continuous-Flow Hydrogenation of Nitroaromatics in Microreactor with Mesoporous Pd@SBA-15. Processes (Basel) 2023. [DOI: 10.3390/pr11041074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
The hydrogenation of nitroaromatics to prepare aromatic amines plays a crucial role in the chemical industry. Traditional hydrogenation has the risk of hydrogen leakage from the equipment, and its catalyst has the disadvantage of being easily deactivated and difficult to recover. In this study, we designed an efficient and stable mesoporous catalyst, Pd@SBA-15, which was constructed by impregnating the nanopores of the mesoporous material SBA-15 with palladium nanoparticles. The catalyst was then filled in a micro-packed-bed reactor (MPBR) for continuous flow hydrogenation. The designed continuous flow hydrogenation system has two distinctive features. First, we used mesoporous Pd@SBA-15 instead of the traditional bulk Pd/C as the hydrogenation catalyst, which is more suitable for exposing the active sites of metal Pd and reducing the agglomeration of nanometals. The highly ordered porous structure enhances hydrogen adsorption and thus hydrogenation efficiency. Secondly, the continuous flow system allows for precise detection and control of the reaction process. The highly efficient catalysts do not require complex post-treatment recovery, which continues to operate for 24 h with barely any reduction in activity. Due to the high catalytic activity, the designed mesoporous Pd@SBA-15 showed excellent catalytic performance as a hydrogenation catalyst in a continuous flow system with 99% conversion of nitroaromatics in 1 min. This work provides insights into the rational design of hydrogenation systems in the chemical industry.
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Affiliation(s)
- Kejie Chai
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Runqiu Shen
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tingting Qi
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jianli Chen
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
- College of New Materials Engineering, Jiaxing Nanhu University, Jiaxing 314000, China
| | - Weike Su
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - An Su
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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9
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Aratboni HA, Rafiei N, Allaf MM, Abedini S, Rasheed RN, Seif A, Wang S, Ramirez JRM. Nanotechnology: An outstanding tool for increasing and better exploitation of microalgae valuable compounds. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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10
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Biehler E, Quach Q, Huff C, Abdel-Fattah TM. Organo-Nanocups Assist the Formation of Ultra-Small Palladium Nanoparticle Catalysts for Hydrogen Evolution Reaction. MATERIALS 2022; 15:ma15072692. [PMID: 35408023 PMCID: PMC9000559 DOI: 10.3390/ma15072692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 12/10/2022]
Abstract
Ultra-small palladium nanoparticles were synthesized and applied as catalysts for a hydrogen evolution reaction. The palladium metal precursor was produced via beta-cyclodextrin as organo-nanocup (ONC) capping agent to produce ultra-small nanoparticles used in this study. The produced ~3 nm nanoparticle catalyst was then characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), and Fourier transform infrared spectroscopy (FTIR) to confirm the successful synthesis of ~3 nm palladium nanoparticles. The nanoparticles' catalytic ability was explored via the hydrolysis reaction of sodium borohydride. The palladium nanoparticle catalyst performed best at 303 K at a pH of 7 with 925 μmol of sodium borohydride having an H2 generation rate of 1.431 mL min-1 mLcat-1. The activation energy of the palladium catalyst was calculated to be 58.9 kJ/mol.
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11
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Sevim M, Bayrak C, Menzek A. Chemoselective reduction of α,β-unsaturated carbonyl compounds in the presence of CuPd alloy nanoparticles decorated on mesoporous graphitic carbon nitride as highly efficient catalyst. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Díaz-Vázquez ED, Soria-Castro SM, Della-Cagnoletta I, Martín SE, Oksdath-Mansilla G, Uberman PM. Highly active small Pd nanocatalysts obtained by visible-light-induced photoreduction with citrate and oxalate salts under batch and flow approaches. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00524c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a suitable combination of citrate and oxalate salts as photoinitiators, a visible-light induced Pd NP synthesis was conducted. Depending on the reaction conditions of the catalysis, the ligands may have a great impact on the catalytic activity.
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Affiliation(s)
- E. Daniela Díaz-Vázquez
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
| | - Silvia M. Soria-Castro
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
| | - Irina Della-Cagnoletta
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
| | - Sandra E. Martín
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
| | - Gabriela Oksdath-Mansilla
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
| | - Paula M. Uberman
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende. Edificio Ciencias 2. Ciudad Universitaria X5000HUA, Córdoba, Argentina
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13
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García-Guzmán JJ, López-Iglesias D, Cubillana-Aguilera L, Bellido-Milla D, Palacios-Santander JM, Marin M, Grigorescu SD, Lete C, Lupu S. Silver nanostructures - poly(3,4-ethylenedioxythiophene) sensing material prepared by sinusoidal voltage procedure for detection of antioxidants. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Isaeva EI, Gorbunova VV, Nazarova AM. Photolysis of Solutions of Palladium(II) Complex Compounds with Organic Acids. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363220120129] [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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15
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Han HS, Park W, Hwang SW, Kim H, Sim Y, Surendran S, Sim U, Cho IS. (0 2 0)-Textured tungsten trioxide nanostructure with enhanced photoelectrochemical activity. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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16
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Precipitator concentration-dependent opto-structural properties of MgO nanoparticles fabricated using natural brine. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2645-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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17
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Ahmad MS, Cheng CK, Kumar R, Singh S, Saeed KA, Ong HR, Abdullah H, Khan MR. Pd/CNT Catalysts for Glycerol Electro‐oxidation: Effect of Pd Loading on Production of Valuable Chemical Products. ELECTROANAL 2020. [DOI: 10.1002/elan.201900611] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Muhammad Sheraz Ahmad
- Faculty of Chemical and Natural Resources EngineeringUniversiti Malaysia Pahang, Lebuhraya Tun Razak 26300 Gambang, Pahang Malaysia
| | - Chin Kui Cheng
- Faculty of Chemical and Natural Resources EngineeringUniversiti Malaysia Pahang, Lebuhraya Tun Razak 26300 Gambang, Pahang Malaysia
| | - Ravinder Kumar
- Department of Earth and Environmental Sciences, Faculty of Science and EngineeringMacquarie University Sydney NSW 2109 Australia
| | - Sharanjit Singh
- Innovative catalysis program, key laboratory of organic optoelectronics and molecular engineeringTsinghua University Beijing 100084 China
| | - Khater Ahmed Saeed
- Faculty of Chemical and Natural Resources EngineeringUniversiti Malaysia Pahang, Lebuhraya Tun Razak 26300 Gambang, Pahang Malaysia
| | - Huei Ruey Ong
- Faculty of Engineering and TechnologyDRB-HICOM University of Automotive Malaysia 26607 Pekan, Pahang Malaysia
| | - Hamidah Abdullah
- Faculty of Chemical and Natural Resources EngineeringUniversiti Malaysia Pahang, Lebuhraya Tun Razak 26300 Gambang, Pahang Malaysia
| | - Maksudur Rahman Khan
- Faculty of Chemical and Natural Resources EngineeringUniversiti Malaysia Pahang, Lebuhraya Tun Razak 26300 Gambang, Pahang Malaysia
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18
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Mahmoodi A, Ensafi AA, Rezaei B. Fabrication of Electrochemical Sensor Based on CeO
2
−SnO
2
Nanocomposite Loaded on Pd Support for Determination of Nitrite at Trace Levels. ELECTROANAL 2020. [DOI: 10.1002/elan.201900598] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Aram Mahmoodi
- Department of Chemistry Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Ali A. Ensafi
- Department of Chemistry Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Behzad Rezaei
- Department of Chemistry Isfahan University of Technology Isfahan 84156-83111 Iran
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19
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Abbas G, Kumar N, Kumar D, Pandey G. Effect of Reaction Temperature on Shape Evolution of Palladium Nanoparticles and Their Cytotoxicity against A-549 Lung Cancer Cells. ACS OMEGA 2019; 4:21839-21847. [PMID: 31891061 PMCID: PMC6933587 DOI: 10.1021/acsomega.9b02776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/28/2019] [Indexed: 05/06/2023]
Abstract
Palladium nanoparticles (Pd NPs) of different shapes and sizes have been synthesized by reducing potassium tetrachloropalladinate(II) by l-ascorbic acid (AA) in an aqueous solution phase in the presence of an amphiphilic nonionic surfactant poly ethylene glycol (PEG) via a sonochemical method. Materials have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray soectrscopy (EDX), Fourier transform infrared (FTIR), surface-enhanced Raman spectroscopy (SERS), particle distribution, and zeta potential studies. Truncated octahedron/fivefold twinned pentagonal rods are formed at room temperature (RT) (25 °C) while hexagonal/trigonal plates are formed at 65 °C. XRD results show evolution of anisotropically grown, phase-pure, and well crystalline face-centered cubic Pd NPs at both temperatures. FTIR and SERS studies revealed adsorption of ascorbic acid (AA) and PEG at NP's surface. Particle's size distribution graph indicates formation of particles having wide size distribution while the zeta potential particle surface is negatively charged and stable. The truncated octahedron/fivefold twinned pentagonal rod-shaped Pd NPs, formed at RT, while thermally stable and kinetically controlled hexagonal/trigonal plate-like Pd NPs, evolved at higher temperature 65 °C. The obtained Pd NPs have a high surface area and narrow pore size distribution. To predict protein reactivity of the Pd cluster, docking has been done with DNA and lung cancer-effective proteins. The cytotoxicity of the Pd NPs has been screened on human lung cancer cells A-549 at 37 °C. The biological adaptability exhibited by Pd NPs has opened a pathway in biochemical applications.
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Affiliation(s)
- Gulam Abbas
- Department
of Chemistry and Department of Physics, Babasaheb Bhimrao
Ambedkar University, Lucknow 226025, India
| | - Narinder Kumar
- Department
of Chemistry and Department of Physics, Babasaheb Bhimrao
Ambedkar University, Lucknow 226025, India
| | - Devesh Kumar
- Department
of Chemistry and Department of Physics, Babasaheb Bhimrao
Ambedkar University, Lucknow 226025, India
| | - Gajanan Pandey
- Department
of Chemistry and Department of Physics, Babasaheb Bhimrao
Ambedkar University, Lucknow 226025, India
- E-mail:
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20
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Chen T, Ellis I, Hooper TJN, Liberti E, Ye L, Lo BTW, O'Leary C, Sheader AA, Martinez GT, Jones L, Ho PL, Zhao P, Cookson J, Bishop PT, Chater P, Hanna JV, Nellist P, Tsang SCE. Interstitial Boron Atoms in the Palladium Lattice of an Industrial Type of Nanocatalyst: Properties and Structural Modifications. J Am Chem Soc 2019; 141:19616-19624. [PMID: 31747756 DOI: 10.1021/jacs.9b06120] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
It is well-established that the inclusion of small atomic species such as boron (B) in powder metal catalysts can subtly modify catalytic properties, and the associated changes in the metal lattice imply that the B atoms are located in the interstitial sites. However, there is no compelling evidence for the occurrence of interstitial B atoms, and there is a concomitant lack of detailed structural information describing the nature of this occupancy and its effects on the metal host. In this work, we use an innovative combination of high-resolution 11B magic-angle-spinning (MAS) and 105Pd static solid-state NMR nuclear magnetic resonance (NMR), synchrotron X-ray diffraction (SXRD), in situ X-ray pair distribution function (XPDF), scanning transmission electron microscopy-annular dark field imaging (STEM-ADF), electron ptychography, and electron energy loss spectroscopy (EELS) to investigate the B atom positions, properties, and structural modifications to the palladium lattice of an industrial type interstitial boron doped palladium nanoparticle catalyst system (Pd-intB/C NPs). In this study, we report that upon B incorporation into the Pd lattice, the overall face centered cubic (FCC) lattice is maintained; however, short-range disorder is introduced. The 105Pd static solid-state NMR illustrates how different types (and levels) of structural strain and disorder are introduced in the nanoparticle history. These structural distortions can lead to the appearance of small amounts of local hexagonal close packed (HCP) structured material in localized regions. The short-range lattice tailoring of the Pd framework to accommodate interstitial B dopants in the octahedral sites of the distorted FCC structure can be imaged by electron ptychography. This study describes new toolsets that enable the characterization of industrial metal nanocatalysts across length scales from macro- to microanalysis, which gives important guidance to the structure-activity relationship of the system.
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Affiliation(s)
- Tianyi Chen
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom.,Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Ieuan Ellis
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom.,Johnson Matthey , Blount's Court, Sonning Common , Reading RG4 9NH , United Kingdom
| | - Thomas J N Hooper
- Department of Physics , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Emanuela Liberti
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Lin Ye
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
| | - Benedict T W Lo
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
| | - Colum O'Leary
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Alexandra A Sheader
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Gerardo T Martinez
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Lewys Jones
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Ping-Luen Ho
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom.,Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Pu Zhao
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
| | - James Cookson
- Johnson Matthey , Blount's Court, Sonning Common , Reading RG4 9NH , United Kingdom
| | - Peter T Bishop
- Johnson Matthey , Blount's Court, Sonning Common , Reading RG4 9NH , United Kingdom
| | - Philip Chater
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE , United Kingdom
| | - John V Hanna
- Department of Physics , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Peter Nellist
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Shik Chi Edman Tsang
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
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21
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Chakraborty T, Sarkar A, Chattopadhyay T. Pd(0) immobilized on Fe3O4@AHBA: an efficient magnetically separable heterogeneous nanocatalyst for C–C coupling reactions. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1687890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Abani Sarkar
- Department of Chemistry, University of Calcutta, Kolkata, India
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22
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Yoshii T, Umemoto D, Kuwahara Y, Mori K, Yamashita H. Engineering of Surface Environment of Pd Nanoparticle Catalysts on Carbon Support with Pyrene-Thiol Ligands for Semihydrogenation of Alkynes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37708-37719. [PMID: 31538475 DOI: 10.1021/acsami.9b12470] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A new type of pyrene-thiol derivative-modified Pd nanoparticle (NP) catalyst on a carbon black support for the efficient semihydrogenation of alkynes to alkenes is reported herein. Colloidal Pd NPs surrounded by pyrene-thiol modifiers were prepared using the two-phase Brust method followed by impregnation of carbon black materials. Based on the structural characterization of the prepared catalyst (PyC12S-Pd/VC) by NMR, UV-vis, FT-IR, TEM, HAADF-STEM, Pd K-edge XAFS, XRD, N2 adsorption, and XPS, we show that highly dispersed Pd NPs are immobilized on the catalysts via π-π interaction between pyrene groups bound to the Pd NPs and carbon black supports. PyC12S-Pd/VC efficiently catalyzes the alkyne semihydrogenation reaction while maintaining high alkene selectivity; an alkene selectivity of 94% is attained at 98% conversion after 5 h of reaction, and the selectivity was retained around 80% in 10 h of reaction. This performance is superior to that of a catalyst without pyrene groups and that of a commercial Lindlar catalyst. The steric hindrance of pyrene groups restricts access of the substrates to Pd NP surfaces, suppressing the unfavorable overhydrogenation of alkenes to alkanes, which is revealed by the solvent and substrate dependency on the catalytic performance and a DFT calculation study. Furthermore, the high selectivity and stability of PyC12S-Pd/VC are caused by the strong interaction between pyrene groups and carbon supports, which prevents the separation of pyrene modifiers and the leaching or sintering of Pd NPs during the catalytic reaction. It is demonstrated that the combination of Pd NPs, pyrene-thiol modifiers, and carbon supports offers high activity, alkene selectivity, and stability in the semihydrogenation reaction.
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Affiliation(s)
- Takeharu Yoshii
- Division of Materials and Manufacturing Science, Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
| | - Daiki Umemoto
- Division of Materials and Manufacturing Science, Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
| | - Yasutaka Kuwahara
- Division of Materials and Manufacturing Science, Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
- Elements Strategy Initiative for Catalysts & Batteries Kyoto University (ESICB) , Kyoto University , Katsura, Kyoto 615-8520 , Japan
| | - Kohsuke Mori
- Division of Materials and Manufacturing Science, Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
- Elements Strategy Initiative for Catalysts & Batteries Kyoto University (ESICB) , Kyoto University , Katsura, Kyoto 615-8520 , Japan
| | - Hiromi Yamashita
- Division of Materials and Manufacturing Science, Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
- Elements Strategy Initiative for Catalysts & Batteries Kyoto University (ESICB) , Kyoto University , Katsura, Kyoto 615-8520 , Japan
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23
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Topuz F, Uyar T. Atomic layer deposition of palladium nanoparticles on a functional electrospun poly-cyclodextrin nanoweb as a flexible and reusable heterogeneous nanocatalyst for the reduction of nitroaromatic compounds. NANOSCALE ADVANCES 2019; 1:4082-4089. [PMID: 36132109 PMCID: PMC9419093 DOI: 10.1039/c9na00368a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/08/2019] [Indexed: 06/13/2023]
Abstract
We here show a rational approach for the fabrication of a flexible, insoluble catalytic electrospun nanoweb of cross-linked cyclodextrin (CD) for the reduction of nitroaromatics. CD nanofibers were produced by electrospinning an aqueous HP-β-CD solution containing a multifunctional cross-linker (i.e., 1,2,3,4-butanetetracarboxylic acid, BTCA) and were subsequently cross-linked by heat treatment, which led to an insoluble electrospun poly-CD nanoweb. The poly-CD nanoweb was decorated with Pd nanoparticles (Pd-NPs) by atomic layer deposition (ALD) technique over 20 cycles to give rise to a catalytic electrospun nanoweb (i.e., Pd@poly-CD). The formation of the Pd-NPs on the poly-CD nanofiber surface was clearly evidenced by TEM and STEM imaging, which displayed the homogeneously distributed Pd-NPs with a mean size of 4.34 nm. ICP-MS analysis revealed that the Pd content on the Pd@poly-CD nanoweb was 0.039 mg per mg of nanoweb. The catalytic performance of the Pd@poly-CD nanoweb was tested for the reduction of a nitroaromatic compound (i.e., 4-nitrophenol (4-NP)), and high catalytic performance of the Pd@poly-CD nanoweb was observed with a corresponding TOF value of 0.0316 min-1. XPS was used to explore the oxidation state of Pd atoms before and after the catalytic reduction of 4-NP, and no significant change was observed after catalytic reactions. In brief, the Pd@poly-CD nanoweb having handy, flexible, structural stability and reusability can be effectively used in environmental applications as a heterogeneous nanocatalyst for the reduction of toxic nitroaromatics.
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Affiliation(s)
- Fuat Topuz
- Institute of Materials Science & Nanotechnology, Bilkent University Ankara 06800 Turkey
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology, Bilkent University Ankara 06800 Turkey
- Department of Fiber Science & Apparel Design, College of Human Ecology, Cornell University Ithaca NY 14853 USA
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24
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Watson IC, Schumann A, Yu H, Davy EC, McDonald R, Ferguson MJ, Hering‐Junghans C, Rivard E. N‐Heterocyclic Olefin‐Ligated Palladium(II) Complexes as Pre‐Catalysts for Buchwald–Hartwig Aminations. Chemistry 2019; 25:9678-9690. [DOI: 10.1002/chem.201901376] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Ian C. Watson
- Department of ChemistryUniversity of Alberta 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Canada
| | - André Schumann
- Leibniz Institute for CatalysisUniversity of Rostock Albert Einstein Strasse 29a 18059 Rostock Germany
| | - Haoyang Yu
- Department of ChemistryUniversity of Alberta 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Canada
| | - Emma C. Davy
- Department of Physical SciencesQuest University 3200 University Boulevard Squamish British Columbia V8B 0N8 Canada
| | - Robert McDonald
- Department of ChemistryUniversity of Alberta 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Canada
| | - Michael J. Ferguson
- Department of ChemistryUniversity of Alberta 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Canada
| | - Christian Hering‐Junghans
- Leibniz Institute for CatalysisUniversity of Rostock Albert Einstein Strasse 29a 18059 Rostock Germany
| | - Eric Rivard
- Department of ChemistryUniversity of Alberta 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Canada
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25
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Soğukömeroğulları HG, Karataş Y, Celebi M, Gülcan M, Sönmez M, Zahmakiran M. Palladium nanoparticles decorated on amine functionalized graphene nanosheets as excellent nanocatalyst for the hydrogenation of nitrophenols to aminophenol counterparts. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:96-107. [PMID: 30776607 DOI: 10.1016/j.jhazmat.2019.02.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/04/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
We reported the improved catalytic property of Pd (0) nanoparticles decorated on amine-functionalized graphene nanosheets (Pd/GNS-NH2) for the hydrogenation of nitrophenol derivatives in the presence of NaBH4 at moderate conditions. Pd/GNS-NH2 nanocatalyst was synthesized by the deposition-reduction method. Sundry techniques such as ICP-OES, P-XRD, XPS, TEM, HR-TEM and EDX have been applied to explain the structure and morphology of the Pd/GNS-NH2 nanocatalyst. The results show that the Pd (0) nanoparticles are perfectly dispersed on the surface of the GNS-NH2 support material (dmean = 1.38-2.63 nm). The catalytic activity of the Pd/GNS-NH2 nanocatalyst was tested in the hydrogenation of nitrophenol derivatives in water in the presence of NaBH4 as reductant and the excellent activity of nanocatalyst have been detected against 2-nitrophenol, 4-nitrophenol, 2,4-dinitrophenol and 2,4,6-trinitrophenol derivatives with 116.8, 65.9, 42.8 and 11.4 min-1 initial TOF values, respectively. Another important point is that the nanocatalyst has very high reusability performance (at 5th reuse between 71.5 and 91.5%) for the hydrogenation of nitrophenols. Finally, catalytic studies have been carried out at various temperatures to calculate the Ea, ΔH≠ and ΔS≠.
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Affiliation(s)
| | - Yaşar Karataş
- Department of Chemistry, Van Yüzüncü Yıl University, Van, 65080, Turkey
| | - Metin Celebi
- Department of Chemistry, Van Yüzüncü Yıl University, Van, 65080, Turkey
| | - Mehmet Gülcan
- Department of Chemistry, Van Yüzüncü Yıl University, Van, 65080, Turkey.
| | - Mehmet Sönmez
- Department of Chemistry, Gaziantep University, Gaziantep, 27310, Turkey
| | - Mehmet Zahmakiran
- Department of Chemistry, Van Yüzüncü Yıl University, Van, 65080, Turkey
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26
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Karakhanov E, Maximov A, Zolotukhina A. Selective semi-hydrogenation of phenyl acetylene by Pd nanocatalysts encapsulated into dendrimer networks. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Bentonite clay as an efficient substrate for the synthesis of the super stable and recoverable magnetic nanocomposite of palladium (Fe3O4/Bentonite-Pd). Polyhedron 2019. [DOI: 10.1016/j.poly.2019.01.054] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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28
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Efficient heterogenization of palladium by citric acid on the magnetite nanoparticles surface (Nano-Fe3O4@CA-Pd), and its catalytic application in C-C coupling reactions. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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29
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Al-Khodir FAI, Abumelha HMA, Al-Warhi T, Al-Issa SA. New Platinum(IV) and Palladium(II) Transition Metal Complexes of s-Triazine Derivative: Synthesis, Spectral, and Anticancer Agents Studies. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9835745. [PMID: 30906785 PMCID: PMC6398043 DOI: 10.1155/2019/9835745] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/01/2019] [Accepted: 01/31/2019] [Indexed: 11/17/2022]
Abstract
New Pd(II) and Pt(IV) triazine complexes [Pt3(L 1 )2(Cl)9(H2O)3].3Cl.3H2O (1), [Pt3(L 2 )2(Cl)9(H2O)3].3Cl (2), [Pt3(L 3 )2(Cl)9(H2O)3].3Cl (3), [Pt2(L 4 )2(Cl)6(H2O)2] .2Cl.4H2O (4), [Pd3(L 1 )2(H2O)6] .3Cl2 (5), [Pd3(L 2 )2(H2O)6].3Cl2 (6), [Pd3(L 3 )2(H2O)6].3Cl2 (7), and [Pd2(L 4 )2(H2O)4].2Cl2 (8) were synthesized and well characterized using elemental analyses, molar conductance, IR, UV-Vis, magnetic susceptibility, 1H, 13C-NMR spectra, and thermal analyses. These analyses deduced that the L 1 , L 2 , and L 3 ligands act as tridentate forming octahedral geometry with Pt(IV) metal ions and square planar geometry in case of Pd(II) complexes but the L 4 ligand acts as bidentate chelate. The molar conductance values refer to the fact that all the prepared s-triazine complexes have electrolyte properties which are investigated in DMSO solvent. Surface morphology behaviors of prepared complexes have been scanned using TEM. The crystalline behavior of triazine complexes has been checked based on X-ray powder diffraction patterns. The antimicrobial activity of the free ligands and their platinum(IV) and palladium(II) complexes against the species Staphylococcus aureus (G+), Escherichia coli (G-), Aspergillus flavus, and Candida albicans has been carried out and compared with the standard one. The coordination of ligands towards metal ions makes them stronger bacteriostatic agents, thus inhibiting the growth of bacteria and fungi more than the free ligands. The cytotoxic assessment IC50 of the free ligands and its platinum(IV) complexes in vitro against human colon and lung cancer cell lines introduced a promising efficiency.
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Affiliation(s)
- Fatima A. I. Al-Khodir
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Saudi Arabia
| | - Hana M. A. Abumelha
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Saudi Arabia
| | - Tarfah Al-Warhi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Saudi Arabia
| | - S. A. Al-Issa
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Saudi Arabia
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30
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Nazari R, Rajić L, Ciblak A, Hernández S, Mousa IE, Zhou W, Bhattacharyya D, Alshawabkeh AN. Immobilized palladium-catalyzed electro-Fenton's degradation of chlorobenzene in groundwater. CHEMOSPHERE 2019; 216:556-563. [PMID: 30390586 PMCID: PMC6293191 DOI: 10.1016/j.chemosphere.2018.10.143] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 05/23/2023]
Abstract
This study investigates the effect of palladium (Pd) form on the electrochemical degradation of chlorobenzene in groundwater by palladium-catalyzed electro-Fenton (EF) reaction. In batch and flow-through column reactors, EF was initiated via in-situ electrochemical formation of hydrogen peroxide (H2O2) supported by Pd on alumina powder or by palladized polyacrylic acid (PAA) in a polyvinylidene fluoride (PVDF) membrane (Pd-PVDF/PAA). In a mixed batch reactor containing 10 mg L-1 Fe2+, 2 g L-1 of catalyst in powder form (1% Pd, 20 mg L-1 of Pd) and an initial pH of 3, chlorobenzene was degraded under 120 mA current following a first-order decay rate showing 96% removal within 60 min. Under the same conditions, a rotating Pd-PVDF/PAA disk produced 88% of chlorobenzene degradation. In the column experiment with automatic pH adjustment, 71% of chlorobenzene was removed within 120 min with 10 mg L-1 Fe2+, and 2 g L-1 catalyst in pellet form (0.5% Pd, 10 mg L-1 of Pd) under 60 mA. The EF reaction can be achieved under flow, without external pH adjustment and H2O2 addition, and can be applied for in-situ groundwater treatment. Furthermore, the rotating PVDF-PAA membrane with immobilized Pd-catalyst showed an effective and low maintenance option for employing Pd catalyst for water treatment.
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Affiliation(s)
- Roya Nazari
- Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering, 360 Huntington Avenue, Boston, MA, 02115, USA
| | - Ljiljana Rajić
- Pioneer Valley Coral and Natural Science Institute, 1 Mill Valley Road, Hadley, MA, 01035, USA
| | - Ali Ciblak
- Geosyntec Consultants, 1255 Roberts Boulevard, suite 200, Kennesaw, GA, 30144, USA
| | - Sebastián Hernández
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
| | - Ibrahim E Mousa
- Department of Environmental Biotechnology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Menoufia, 22857, Egypt
| | - Wei Zhou
- Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering, 360 Huntington Avenue, Boston, MA, 02115, USA; Department of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Dibakar Bhattacharyya
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
| | - Akram N Alshawabkeh
- Department of Civil and Environmental Engineering, Northeastern University, 400 Snell Engineering, 360 Huntington Avenue, Boston, MA, 02115, USA.
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31
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Celebioglu A, Topuz F, Uyar T. Facile and green synthesis of palladium nanoparticles loaded into cyclodextrin nanofibers and their catalytic application in nitroarene hydrogenation. NEW J CHEM 2019. [DOI: 10.1039/c8nj05133j] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile and green synthesis of Pd nanoparticles using cyclodextrin and their electrospinning into polymer-free nanofibers were reported.
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Affiliation(s)
- Asli Celebioglu
- Institute of Materials Science & Nanotechnology
- Bilkent University
- 06800 Ankara
- Turkey
| | - Fuat Topuz
- Institute of Materials Science & Nanotechnology
- Bilkent University
- 06800 Ankara
- Turkey
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology
- Bilkent University
- 06800 Ankara
- Turkey
- Department of Fiber Science and Apparel Design
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32
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Ghonchepour E, Islami MR, Bananezhad B, Mostafavi H, Tikdari AM. Synthesis of recoverable palladium composite as an efficient catalyst for the reduction of nitroarene compounds and Suzuki cross-coupling reactions using sepiolite clay and magnetic nanoparticles (Fe3O4@sepiolite-Pd2+). CR CHIM 2019. [DOI: 10.1016/j.crci.2018.07.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Xu Z, Wang P, Chen Q, Cai M. A practical synthesis of unsymmetrical triarylphosphines by heterogeneous palladium(0)-catalyzed cross-coupling of aryl iodides with diphenylphosphine. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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34
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Nikoorazm M, Ghorbani F, Ghorbani-Choghamarani A, Erfani Z. Pd(0)- S-propyl-2-aminobenzothioate immobilized onto functionalized magnetic nanoporous MCM-41 as efficient and recyclable nanocatalyst for the Suzuki, Stille and Heck cross coupling reactions. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4282] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mohsen Nikoorazm
- Department of Chemistry, Faculty of Science; Ilam University; P. O. Box 69315516 Ilam Iran
| | - Farshid Ghorbani
- Department of Environment, Faculty of Natural Resource; University of Kurdistan; 66177-15177 Sanandaj Iran
| | | | - Zahra Erfani
- Department of Chemistry, Faculty of Science; Ilam University; P. O. Box 69315516 Ilam Iran
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35
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Radoń A, Łukowiec D. Silver nanoparticles synthesized by UV-irradiation method using chloramine T as modifier: structure, formation mechanism and catalytic activity. CrystEngComm 2018. [DOI: 10.1039/c8ce01379a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two different formation mechanisms of Ag NPs by UV-irradiation method in the presence of chloramine T were identified.
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Affiliation(s)
- Adrian Radoń
- Faculty of Mechanical Engineering
- Silesian University of Technology
- 44-100 Gliwice
- Poland
| | - Dariusz Łukowiec
- Faculty of Mechanical Engineering
- Silesian University of Technology
- 44-100 Gliwice
- Poland
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36
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Mahdavi H, Heidari AA. Chelated palladium nanoparticles on the surface of plasma-treated polyethersulfone membrane for an efficient catalytic reduction of p-nitrophenol. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4211] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hossein Mahdavi
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
| | - Ali Akbar Heidari
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
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37
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Bhanja P, Liu X, Modak A. Pt and Pd Nanoparticles Immobilized on Amine-Functionalized Hypercrosslinked Porous Polymer Nanotubes as Selective Hydrogenation Catalyst for α,β-Unsaturated Aldehydes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701761] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Piyali Bhanja
- Department of Materials science; Indian Association for the Cultivation of Science, Jadavpur; Kolkata-700032 India
| | - Xiao Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education; School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 P.R. China
| | - Arindam Modak
- Department of Materials science; Indian Association for the Cultivation of Science, Jadavpur; Kolkata-700032 India
- Key Laboratory for Green Chemical Technology of Ministry of Education; School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 P.R. China
- S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake; Kolkata 700106 India
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38
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Yoshii T, Nakatsuka K, Kuwahara Y, Mori K, Hiromi Yamashita HY. Synthesis of carbon-supported Pd–Co bimetallic catalysts templated by Co nanoparticles using the galvanic replacement method for selective hydrogenation. RSC Adv 2017. [DOI: 10.1039/c7ra03846a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Carbon-supported Pd–Co catalysts prepared by galvanic replacement were proven to be active for the selective hydrogenation of phenylacetylene.
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Affiliation(s)
- Takeharu Yoshii
- Division of Materials and Manufacturing Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Kazuki Nakatsuka
- Division of Materials and Manufacturing Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Yasutaka Kuwahara
- Division of Materials and Manufacturing Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Kohsuke Mori
- Division of Materials and Manufacturing Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
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39
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Hossain AMS, Balbín A, Erami RS, Prashar S, Fajardo M, Gómez-Ruiz S. Synthesis and study of the catalytic applications in C–C coupling reactions of hybrid nanosystems based on alumina and palladium nanoparticles. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.04.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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40
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Vats T, Dutt S, Kumar R, Siril PF. Facile synthesis of pristine graphene-palladium nanocomposites with extraordinary catalytic activities using swollen liquid crystals. Sci Rep 2016; 6:33053. [PMID: 27619321 PMCID: PMC5020490 DOI: 10.1038/srep33053] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 08/18/2016] [Indexed: 11/28/2022] Open
Abstract
Amazing conductivity, perfect honeycomb sp2 arrangement and the high theoretical surface area make pristine graphene as one of the best materials suited for application as catalyst supports. Unfortunately, the low reactivity of the material makes the formation of nanocomposite with inorganic materials difficult. Here we report an easy approach to synthesize nanocomposites of pristine graphene with palladium (Pd-G) using swollen liquid crystals (SLCs) as a soft template. The SLC template gives the control to deposit very small Pd particles of uniform size on G as well as RGO. The synthesized nanocomposite (Pd-G) exhibited exceptionally better catalytic activity compared with Pd-RGO nanocomposite in the hydrogenation of nitrophenols and microwave assisted C-C coupling reactions. The catalytic activity of Pd-G nanocomposite during nitrophenol reduction reaction was sixteen times higher than Pd nanoparticles and more than double than Pd-RGO nanocomposite. The exceptionally high activity of pristine graphene supported catalysts in the organic reactions is explained on the basis of its better pi interacting property compared to partially reduced RGO. The Pd-G nanocomposite showed exceptional stability under the reaction conditions as it could be recycled upto a minimum of 15 cycles for the C-C coupling reactions without any loss in activity.
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Affiliation(s)
- T Vats
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, India
| | - S Dutt
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, India
| | - R Kumar
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, India
| | - P F Siril
- School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, India
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41
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Synthesis of Water-Dispersible Pd Nanoparticles Using a Novel Oxacalixarene Derivative and their Catalytic Application in C–C Coupling Reactions. Catal Letters 2016. [DOI: 10.1007/s10562-016-1781-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Nikoorazm M, Ghorbani-Choghamarani A, Noori N, Tahmasbi B. Palladium 2-mercapto-N-propylacetamide complex anchored onto MCM-41 as efficient and reusable nanocatalyst for Suzuki, Stille and Heck reactions and amination of aryl halides. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3512] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mohsen Nikoorazm
- Department of Chemistry; Faculty of Science, Ilam University; PO Box 69315516 Ilam Iran
| | | | - Nourolah Noori
- Department of Chemistry; Faculty of Science, Ilam University; PO Box 69315516 Ilam Iran
| | - Bahman Tahmasbi
- Department of Chemistry; Faculty of Science, Ilam University; PO Box 69315516 Ilam Iran
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43
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Nikoorazm M, Ghorbani-Choghamarani A, Khanmoradi M. Application of Pd-2A3HP-MCM-41 to the Suzuki, Heck and Stille coupling reactions and synthesis of 5-substituted 1H-tetrazoles. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3494] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mohsen Nikoorazm
- Department of Chemistry, Faculty of Science; Ilam University; PO Box 69315516 Ilam Iran
| | | | - Maryam Khanmoradi
- Department of Chemistry, Faculty of Science; Ilam University; PO Box 69315516 Ilam Iran
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44
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Panchal U, Modi K, Panchal M, Mehta V, Jain VK. Catalytic activity of recyclable resorcinarene-protected antibacterial Pd nanoparticles in C-C coupling reactions. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)61021-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Raguzin I, Stamm M, Ionov L. Conductive Nanowires Templated by Molecular Brushes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23305-23309. [PMID: 26418290 DOI: 10.1021/acsami.5b07793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, we report the fabrication of conductive nanowires using polymer bottle brushes as templates. In our approach, we synthesized poly(2-dimethylamino)ethyl methacrylate methyl iodide quaternary salt brushes by two-step atom transfer radical polymerization, loaded them with palladium salt, and reduced them in order to form metallic nanowires with average lengths and widths of 300 and 20 nm, respectively. The obtained nanowires were deposited between conductive gold pads and were connected to them by sputtering of additional pads to form an electric circuit. We connected the nanowires in an electric circuit and demonstrated that the conductivity of these nanowires is around 100 S·m(-1).
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Affiliation(s)
- Ivan Raguzin
- Leibniz Institute of Polymer Research e.V. Dresden , Hohe Str. 6, D-01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
| | - Manfred Stamm
- Leibniz Institute of Polymer Research e.V. Dresden , Hohe Str. 6, D-01069 Dresden, Germany
- Technische Universität Dresden , Fakultät Mathematik und Naturwissenschaften, 01062 Dresden, Germany
| | - Leonid Ionov
- Leibniz Institute of Polymer Research e.V. Dresden , Hohe Str. 6, D-01069 Dresden, Germany
- University of Georgia , Athens, Georgia 30602, United States
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46
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Keerthiga G, Viswanathan B, Chetty R. Electrochemical reduction of CO2 on electrodeposited Cu electrodes crystalline phase sensitivity on selectivity. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.08.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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47
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Sreeremya TS, Krishnan A, Remani KC, Patil KR, Brougham DF, Ghosh S. Shape-selective oriented cerium oxide nanocrystals permit assessment of the effect of the exposed facets on catalytic activity and oxygen storage capacity. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8545-8555. [PMID: 25831073 DOI: 10.1021/acsami.5b00298] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The catalytic performance of a range of nanocrystalline CeO2 samples, prepared to have different morphologies, was measured using two accepted indicators; oxygen storage and diesel soot combustion. The same powders were characterized in detail by HR-TEM, XRD, XPS, and Raman methods. The study demonstrates that activity is determined by the relative fraction of the active crystallographic planes, not by the specific surface area of the powders. The physical study is a step toward quantitative evaluation of the relative contribution to activity of the different facets. The synthetic protocol permits fabrication of CeO2 nanostructures with preferentially grown active planes, and therefore has potential in developing catalytic applications and in nanocompositing.
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Affiliation(s)
| | | | | | | | - Dermot F Brougham
- §National Institute for Cellular Biotechnology, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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48
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Kumar Rao G, Kumar A, Saleem F, Singh MP, Kumar S, Kumar B, Mukherjee G, Singh AK. Palladium(ii)-1-phenylthio-2-arylchalcogenoethane complexes: palladium phosphide nano-peanut and ribbon formation controlled by chalcogen and Suzuki coupling activation. Dalton Trans 2015; 44:6600-12. [DOI: 10.1039/c4dt03471f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Suzuki coupling (cocktail pathway) by complexes of S/Se-ligand/PdP2 NPs prepared from Pd-complexes in TOP (temperature ≥ 280 °C) is efficient.
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Affiliation(s)
- Gyandshwar Kumar Rao
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Arun Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Fariha Saleem
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Mahabir P. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Satyendra Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Bharat Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Goutam Mukherjee
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Ajai K. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
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49
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Dutt S, Kumar R, Siril PF. Green synthesis of a palladium–polyaniline nanocomposite for green Suzuki–Miyaura coupling reactions. RSC Adv 2015. [DOI: 10.1039/c5ra05007c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One pot synthesis of the pd–polyaniline nanocomposite and its catalytic activity in Suzuki–Miyaura coupling reaction in water.
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Affiliation(s)
- Sunil Dutt
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
| | - Raj Kumar
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
| | - Prem Felix Siril
- School of Basic Sciences
- Indian Institute of Technology Mandi
- Mandi-175005
- India
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50
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Di Pietrantonio K, Coccia F, Tonucci L, d'Alessandro N, Bressan M. Hydrogenation of allyl alcohols catalyzed by aqueous palladium and platinum nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra13840j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrogenations of allyl alcohols in aqueous media, at room temperature and pressure, were performed in presence of Pd or Pt lignin nanoparticles as catalysts to obtain saturated alcohols.
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Affiliation(s)
| | - Francesca Coccia
- Department of Engineering and Geology
- G. d'Annunzio University of Chieti-Pescara
- Italy
| | - Lucia Tonucci
- Department of Philosophical
- Educational and Economic Sciences
- G. d'Annunzio University of Chieti-Pescara
- Italy
| | - Nicola d'Alessandro
- Department of Engineering and Geology
- G. d'Annunzio University of Chieti-Pescara
- Italy
| | - Mario Bressan
- Department of Engineering and Geology
- G. d'Annunzio University of Chieti-Pescara
- Italy
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