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Soares WLS, Feitosa LF, Moreira CR, Bertella F, Lopes CW, de Farias AMD, Fraga MA. Tailoring Cu-SiO 2 Interaction through Nanocatalyst Architecture to Assemble Surface Sites for Furfural Aqueous-Phase Hydrogenation to Cycloketones. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39075825 DOI: 10.1021/acsami.4c05266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
In this contribution, nanocatalysts with rather diverse architectures were designed to promote different intimacy degrees between Cu and SiO2 and consequently tune distinct Cu-SiO2 interactions. Previously synthesized copper nanoparticles were deposited onto SiO2 (NPCu/SiO2) in contrast to ordinarily prepared supported Cu/SiO2. NPCu@SiO2 and SiO2@Cu core-shell nanocatalysts were also synthesized, and they were all bulk and surface characterized by XRD, TGA, TEM/HRTEM, H2-TPR, XANES, and XPS. It was found that Cu0 is the main copper phase in NPCu/SiO2 while Cu2+ rules the ordinary Cu/SiO2 catalyst, and Cu0 and electron-deficient Cuδ+ species coexist in the core-shell nanocatalysts as a consequence of a deeper metal-support interaction. Catalytic performance could not be associated with the physical properties of the nanocatalysts derived from their architectures but was associated with the more refined chemical characteristics tuned by their design. Cu/SiO2 and NPCu/SiO2 catalysts led to the formation of furfuryl alcohol, evidencing that catalysts holding weak or no metal-support interaction have no significant impact on product distribution even in the aqueous phase. The establishment of such interactions through advanced catalyst architecture, allowing the formation of electron-deficient Cuδ+ moieties, particularly Cu2+ and Cu+ as unveiled by spectroscopic investigations, is critical to promoting the hydrogenation-ring rearrangement cascade mechanism leading to cycloketones.
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Affiliation(s)
- Welington L S Soares
- Instituto Militar de Engenharia, Praça Gen. Tibúrcio 80, Urca, Rio de Janeiro, Rio de Janeiro 22290-270, Brazil
| | - Leon F Feitosa
- Laboratório de Catálise, Instituto Nacional de Tecnologia─INT, Avenida Venezuela, 82/518, Saúde, Rio de Janeiro, Rio de Janeiro 20081-312, Brazil
| | - Carla R Moreira
- Laboratório de Catálise, Instituto Nacional de Tecnologia─INT, Avenida Venezuela, 82/518, Saúde, Rio de Janeiro, Rio de Janeiro 20081-312, Brazil
| | - Francine Bertella
- Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, Paraná 81531-990, Brazil
| | - Christian Wittee Lopes
- Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, Paraná 81531-990, Brazil
| | - Andréa M Duarte de Farias
- Laboratório de Catálise, Instituto Nacional de Tecnologia─INT, Avenida Venezuela, 82/518, Saúde, Rio de Janeiro, Rio de Janeiro 20081-312, Brazil
| | - Marco A Fraga
- Instituto Militar de Engenharia, Praça Gen. Tibúrcio 80, Urca, Rio de Janeiro, Rio de Janeiro 22290-270, Brazil
- Laboratório de Catálise, Instituto Nacional de Tecnologia─INT, Avenida Venezuela, 82/518, Saúde, Rio de Janeiro, Rio de Janeiro 20081-312, Brazil
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Naikwadi DR, Bankar BD, Kachgunde HG, Biradar A. Highly Active and Efficient Cu@SiO2 Catalyst: Enabled Nucleophilic and Electrophilic Activation of Active Methylene Compounds. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dhanaji R. Naikwadi
- Central Salt and Marine Chemicals Research Institute CSIR Inorganic Materials and catalysis 364002 INDIA
| | - Balasaheb D. Bankar
- Central Salt and Marine Chemicals Research Institute CSIR Inorganic Materials and catalysis 364002 Bhavnagar INDIA
| | - Hanuman G. Kachgunde
- Central Salt and Marine Chemicals Research Institute CSIR Inorganic materials and catalysis 364002 Bhavnagar INDIA
| | - Ankush Biradar
- Central Salt and Marine Chemicals Research Institute CSIR Inorganic materials and Catalysis G B Marg 364002 Bhavnagar INDIA
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Gioria E, Ingale P, Pohl F, Naumann d'Alnoncourt R, Thomas A, Rosowski F. Boosting the performance of Ni/Al2O3 for the reverse water gas shift reaction through formation of CuNi nanoalloys. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01585k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adding Cu to Ni/Al2O3 is an excellent strategy to suppress methane formation and enhance carbon monoxide yield through formation of alloyed nanoparticles.
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Affiliation(s)
- Esteban Gioria
- BasCat – UniCat BASF JointLab, Technische Universität Berlin, Berlin 10623, Germany
| | - Piyush Ingale
- BasCat – UniCat BASF JointLab, Technische Universität Berlin, Berlin 10623, Germany
| | - Felix Pohl
- BasCat – UniCat BASF JointLab, Technische Universität Berlin, Berlin 10623, Germany
| | | | - Arne Thomas
- Functional Materials, Department of Chemistry, Technische Universität Berlin, Berlin 10623, Germany
| | - Frank Rosowski
- BasCat – UniCat BASF JointLab, Technische Universität Berlin, Berlin 10623, Germany
- BASF SE, Process Research and Chemical Engineering, Ludwigshafen 67056, Germany
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Gioria E, Duarte-Correa L, Bashiri N, Hetaba W, Schomaecker R, Thomas A. Rational design of tandem catalysts using a core-shell structure approach. NANOSCALE ADVANCES 2021; 3:3454-3459. [PMID: 36133711 PMCID: PMC9419585 DOI: 10.1039/d1na00310k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 06/16/2023]
Abstract
A facile and rational approach to synthesize bimetallic heterogeneous tandem catalysts is presented. Using core-shell structures, it is possible to create spatially controlled ensembles of different nanoparticles and investigate coupled chemocatalytic reactions. The CO2 hydrogenation to methane and light olefins was tested, achieving a tandem process successfully.
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Affiliation(s)
- Esteban Gioria
- Technische Universität Berlin, Fakultät II, Institut für Chemie: Funktionsmaterialen, Sekretariat BA2 Hardenbergstraße 40 10623 Berlin Germany
- Institute of Research on Catalysis and Petrochemistry, INCAPE, UNL-CONICET Santiago del Estero 2829 3000 Santa Fe Argentina
| | - Liseth Duarte-Correa
- Fritz Haber Institute of the Max Planck Society, Department of Inorganic Chemistry Faradayweg 4-6 14195 Berlin Germany
| | - Najmeh Bashiri
- Technische Universität Berlin, Fakultät II, Institut für Chemie: Funktionsmaterialen, Sekretariat BA2 Hardenbergstraße 40 10623 Berlin Germany
- Technische Universität Berlin, Fakultät II, Institut für Chemie Sekretariat TC 8 Straße des 17. Juni 124 10623 Berlin Germany
| | - Walid Hetaba
- Fritz Haber Institute of the Max Planck Society, Department of Inorganic Chemistry Faradayweg 4-6 14195 Berlin Germany
- Max Planck Institute for Chemical Energy Conversion, Department of Heterogeneous Reactions Stiftstraße 34-36 45470 Mülheim an der Ruhr Germany
| | - Reinhard Schomaecker
- Technische Universität Berlin, Fakultät II, Institut für Chemie Sekretariat TC 8 Straße des 17. Juni 124 10623 Berlin Germany
| | - Arne Thomas
- Technische Universität Berlin, Fakultät II, Institut für Chemie: Funktionsmaterialen, Sekretariat BA2 Hardenbergstraße 40 10623 Berlin Germany
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Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite. COATINGS 2020. [DOI: 10.3390/coatings10121200] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Statistics show that more than 700 thousand tons of dye are produced annually across the globe. Around 10–20% of this is used in industrial processes such as printing and dyeing, while about 50% of the dye produced is discharged into the environment without proper physicochemical treatment. Even trace amounts of dye in water can reduce oxygen solubility and have carcinogenic, mutagenic, and toxic effects on aquatic organisms. Therefore, before dye-containing wastewater is discharged into the environment, it must be properly treated. The present study investigates the green synthesis of nickel ferrite NiFe2O4 (NIFE) spinel magnetic nanoparticles (MNPs) via chemical coprecipitation of a solution of Ni2+/Fe3+ in the presence of a biopolymer blend of chitosan (CT) and ascorbic acid (AS). The magnetic nanomaterial was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy–energy dispersive X-ray analysis (SEM-EDX), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), differential scanning calorimetry (DSC), and vibrating-sample magnetometry (VSM). The material was further explored as a catalyst for the photocatalytic degradation of malachite green (MG) under visible light irradiation coupled with ultrasonic waves. The combination of 90 min of visible solar light irradiation with 6.35 W·mL−1 ultrasonic power at pH 8 resulted in 99% of the photocatalytic efficiency of chitosan-ascorbic acid@NIFE (CTAS@NIFE) catalyst for 70 mg·L−1 MG. The quenching of the photocatalytic efficiency from 98% to 64% in the presence of isopropyl alcohol (IPA) suggested the involvement of hydroxy (•OH) radicals in the mineralization process of MG. The high regression coefficients (R2) of 0.99 for 35, 55, and 70 mg·L−1 MG indicated the sonophotocatalysis of MG by CTAS@NIFE was best defined by a pseudo first-order kinetic model. The mechanism involves the adsorption of MG on the catalyst surface in the first step and thereby mineralization of the MG by the generated hydroxyl radicals (•OH) under the influence of visible radiation coupled with 6.34 W·mL−1 ultrasonic power. In the present study the application of photodegradation process with sonochemistry results in 99% of MG mineralization without effecting the material structure unlike happens in the case adsorption process. So, the secondary pollution (generally happens in case of adsorption) can be avoided by reusing the spent material for another application instead of disposing it. Thus, the ecofriendly synthesis protocol, ease in design of experimentation like use of solar irradiation instead of electric power lamps, reusability and high efficiency of the material suggested the study to be potentially economical for industrial development at pilot scale towards wastewater remediation.
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Patel VK, Sharma S. Supports materialization of Pd based catalysts for NO
x
removal by hydrogen assisted selective catalytic reduction in the presence of oxygen. ChemCatChem 2020. [DOI: 10.1002/cctc.202000756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vivek Kumar Patel
- Department of Chemical Engineering & Technology Indian Institute Of Technology Banaras Hindu University Varanasi 221005 Uttar Pradesh India
| | - Sweta Sharma
- Department of Chemical Engineering & Technology Indian Institute Of Technology Banaras Hindu University Varanasi 221005 Uttar Pradesh India
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Taşaltın N, Taşaltın C, Karakuş S, Kilislioğlu A. Cu core shell nanosphere based electrochemical non-enzymatic sensing of glucose. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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