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Riego DA, Sbarato VM, Leani JJ, Sánchez HJ, Carlomagno I, Perez RD. Characterization of copper speciation on waste biomass of phytofiltration systems using energy dispersive Inelastic X-ray scattering. Anal Chim Acta 2024; 1329:343201. [PMID: 39396285 DOI: 10.1016/j.aca.2024.343201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 08/10/2024] [Accepted: 09/03/2024] [Indexed: 10/15/2024]
Abstract
BACKGROUND Remediation of heavy metal-contaminated water using phytoremediation with accumulator aquatic plants is a promising low-cost emerging technology that adapts very well to the surrounding ecosystem. For the system to work efficiently, metal-saturated plants must be replaced, producing a potentially toxic amount of biomass that is usually stored dry to reduce its volume. The speciation of the high metal content in this biomass is crucial to define its final destination. This work explores the application of synchrotron-based EDIXS (Energy Dispersive Inelastic X-ray Scattering) to monitor the speciation of copper in regional aquatic plants from a laboratory-scale phytoremediation system. RESULTS The phytofiltration system utilized Lemna minor L. and Salvinia biloba Raddi species grown under controlled conditions of light and nutrient availability. Both species are known hyperaccumulators of copper and are prevalent in lakes and rivers across South America. The validation of EDIXS was previously carried out by comparing the results of copper standard samples with those obtained by XANES. The findings revealed that both plant species retained copper in chemical complexes exhibiting octahedral coordination with a Cu valence of 2. Notably, differences emerged between the leaves and roots of Lemna minor L., suggesting a more pronounced adsorption of copper in its leaves, a trend that intensified with exposure. In opposite, for Salvinia the differences between leaves and roots suggests the presence of specific protective mechanisms to cope the copper exposure. Surprisingly, no significant dependence on copper concentration of the aqueous media was observed for either species. SIGNIFICANCE AND NOVELTY These promising results endorse the viability of the proposed methodology in identifying the most effective fate of biomass generated in phytoremediation systems. EDIXS provides a valid tool for performing local copper speciation in aquatic plants with sufficient selectivity to identify subtle differences in various biological tissues. The simplicity of this methodology renders it a valuable tool for advancing our comprehension of metal speciation within waste biomass, thereby holding significant implications for the development of environmental remediation strategies.
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Affiliation(s)
- Daniela A Riego
- IFEG (Physics Institute Enrique Gaviola), CONICET (National Research Council Scientific and Technical) Córdoba, Argentina
| | - Viviana M Sbarato
- Faculty of Agronomy. National University of Córdoba. Córdoba, Argentina
| | - Juan José Leani
- IFEG (Physics Institute Enrique Gaviola), CONICET (National Research Council Scientific and Technical) Córdoba, Argentina; Faculty of Mathematics, Physics, Astronomy and Computation. National University of Córdoba. Córdoba, Argentina
| | - Héctor J Sánchez
- IFEG (Physics Institute Enrique Gaviola), CONICET (National Research Council Scientific and Technical) Córdoba, Argentina; Faculty of Mathematics, Physics, Astronomy and Computation. National University of Córdoba. Córdoba, Argentina
| | | | - Roberto Daniel Perez
- IFEG (Physics Institute Enrique Gaviola), CONICET (National Research Council Scientific and Technical) Córdoba, Argentina; Faculty of Mathematics, Physics, Astronomy and Computation. National University of Córdoba. Córdoba, Argentina.
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2
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Morelli MB, Caviglia M, Santini C, Del Gobbo J, Zeppa L, Del Bello F, Giorgioni G, Piergentili A, Quaglia W, Battocchio C, Bertelà F, Amatori S, Meneghini C, Iucci G, Venditti I, Dolmella A, Di Palma M, Pellei M. Copper-Based Complexes with Adamantane Ring-Conjugated bis(3,5-Dimethyl-pyrazol-1-yl)acetate Ligand as Promising Agents for the Treatment of Glioblastoma. J Med Chem 2024; 67:9662-9685. [PMID: 38831692 DOI: 10.1021/acs.jmedchem.4c00821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
The new ligand L2Ad, obtained by conjugating the bifunctional species bis(3,5-dimethylpyrazol-1-yl)-acetate and the drug amantadine, was used as a chelator for the synthesis of new Cu complexes 1-5. Their structures were investigated by synchrotron radiation-induced X-ray photoelectron spectroscopy (SR-XPS), near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, and by combining X-ray absorption fine structure (XAFS) spectroscopy techniques and DFT modeling. The structure of complex 3 was determined by single-crystal X-ray diffraction analysis. Tested on U87, T98, and U251 glioma cells, Cu(II) complex 3 and Cu(I) complex 5 decreased cell viability with IC50 values significantly lower than cisplatin, affecting cell growth, proliferation, and death. Their effects were prevented by treatment with the Cu chelator tetrathiomolybdate, suggesting the involvement of copper in their cytotoxic activity. Both complexes were able to increase ROS production, leading to DNA damage and death. Interestingly, nontoxic doses of 3 or 5 enhanced the chemosensitivity to Temozolomide.
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Affiliation(s)
- Maria Beatrice Morelli
- School of Pharmacy, Immunopathology and Molecular Medicine Unit, University of Camerino, via Madonna delle Carceri 9, 62032 Camerino, Italy
| | - Miriam Caviglia
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Jo' Del Gobbo
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Laura Zeppa
- School of Pharmacy, Immunopathology and Molecular Medicine Unit, University of Camerino, via Madonna delle Carceri 9, 62032 Camerino, Italy
| | - Fabio Del Bello
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Gianfabio Giorgioni
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Alessandro Piergentili
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Wilma Quaglia
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Chiara Battocchio
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Federica Bertelà
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Simone Amatori
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Carlo Meneghini
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Giovanna Iucci
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Iole Venditti
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Alessandro Dolmella
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy
| | - Michele Di Palma
- Department of Biomedical Sciences, University of Padova, Viale G. Colombo 3, 35131 Padova, Italy
| | - Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
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3
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Zhao C, Yang C, Lv X, Wang S, Hu C, Zheng G, Han Q. Bipolaronic Motifs Induced Spatially Separated Catalytic Sites for Tunable Syngas Photosynthesis From CO 2. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401004. [PMID: 38520181 DOI: 10.1002/adma.202401004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/07/2024] [Indexed: 03/25/2024]
Abstract
Photocatalytic reduction of CO2 into syngas is a promising way to tackle the energy and environmental challenges; however, it remains a challenge to achieve reaction decoupling of CO2 reduction and water splitting. Therefore, efficient production of syngas with a suitable CO/H2 ratio for Fischer-Tropsch synthesis can hardly be achieved. Herein, bipolaronic motifs including Co(II)-pyridine N motifs and Co(II)-imine N motifs are rationally designed into a crystalline imine-linked 1,10-phenanthroline-5,6-dione-based covalent organic framework (bp-Co-COF) with a triazine core. These featured structures with spatially separated active sites exhibit efficient photocatalytic performance toward CO2-to-syngas conversion with a suitable CO/H2 ratio (1:1-1:3). The bipolaronic motifs enable a highly separated electron-hole state, whereby the Co(II)-pyridine N motifs tend to be the active sites for CO2 activation and accelerate the hydrogenation to form *COOH intermediates; whilst, the Co(II)-imine N motifs increase surface hydrophilicity for H2 evolution. The photocatalytic reductions of CO2 and H2O thus decouple and proceed via a concerted way on the bipolaronic motifs of bp-Co-COF. The optimal bp-Co-COF photocatalyst achieves a high syngas evolution rate of 15.8 mmol g-1 h-1 with CO/H2 ratio of 1:2, outperforming previously reported COF-based photocatalysts.
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Affiliation(s)
- Chengfeng Zhao
- School of Chemistry and Chemical, Beijing Institute of Technology, Beijing, 100081, China
| | - Chao Yang
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Ximeng Lv
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Shengyao Wang
- College of Chemistry, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Cejun Hu
- School of Materials Science and Engineering, Fuzhou University, Fujian, 350108, China
| | - Gengfeng Zheng
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
| | - Qing Han
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Faculty of Chemistry and Materials Science, Fudan University, Shanghai, 200438, China
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4
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Chu YC, Chen KH, Tung CW, Chen HC, Wang J, Kuo TR, Hsu CS, Lin KH, Tsai LD, Chen HM. Dynamic (Sub)surface-Oxygen Enables Highly Efficient Carbonyl-Coupling for Electrochemical Carbon Dioxide Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400640. [PMID: 38621196 DOI: 10.1002/adma.202400640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/03/2024] [Indexed: 04/17/2024]
Abstract
Nowadays, high-valent Cu species (i.e., Cuδ +) are clarified to enhance multi-carbon production in electrochemical CO2 reduction reaction (CO2RR). Nonetheless, the inconsistent average Cu valence states are reported to significantly govern the product profile of CO2RR, which may lead to misunderstanding of the enhanced mechanism for multi-carbon production and results in ambiguous roles of high-valent Cu species. Dynamic Cuδ + during CO2RR leads to erratic valence states and challenges of high-valent species determination. Herein, an alternative descriptor of (sub)surface oxygen, the (sub)surface-oxygenated degree (κ), is proposed to quantify the active high-valent Cu species on the (sub)surface, which regulates the multi-carbon production of CO2RR. The κ validates a strong correlation to the carbonyl (*CO) coupling efficiency and is the critical factor for the multi-carbon enhancement, in which an optimized Cu2O@Pd2.31 achieves the multi-carbon partial current density of ≈330 mA cm-2 with a faradaic efficiency of 83.5%. This work shows a promising way to unveil the role of high-valent species and further achieve carbon neutralization.
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Affiliation(s)
- You-Chiuan Chu
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan
| | - Kuan-Hsu Chen
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan
| | - Ching-Wei Tung
- Center for Environmental Sustainability and Human Health, Ming Chi University of Technology, New Taipei, 24301, Taiwan
| | - Hsiao-Chien Chen
- Center for Reliability Science and Technologies, Center for Sustainability and Energy Tecnhologies, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Jiali Wang
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
- Precision Medicine and Translational Cancer Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chia-Shuo Hsu
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan
| | - Kuo-Hsin Lin
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Chutung, Hsinchu, 31040, Taiwan
| | - Li Duan Tsai
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Chutung, Hsinchu, 31040, Taiwan
| | - Hao Ming Chen
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
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5
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Tan HY, Lin SC, Wang J, Chen JH, Chang CJ, Hou CH, Shyue JJ, Kuo TR, Chen HM. Reversibly Adapting Configuration in Atomic Catalysts Enables Efficient Oxygen Electroreduction. J Am Chem Soc 2023. [PMID: 38040669 DOI: 10.1021/jacs.3c10707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Single-atom catalysts (SACs) featuring M-N-C moieties have garnered significant attention as efficient electrocatalysts for the oxygen reduction reaction (ORR). However, the role of the dynamic M-N configuration of SACs induced by the derived frameworks under applied ORR potentials remains poorly understood. Herein, we conduct a comprehensive investigation using multiple operando techniques to assess the dynamic configurations of Cu SACs under various microstructural interface (MSI) regulations by anchoring atomic Cu on g-C3N4 and zeolitic imidazolate framework (ZIF) substrates. Cu SACs supported on g-C3N4 exhibit symmetric Cu-N configurations characterized by a reversibly adaptive nature under operational conditions, which leads to their excellent ORR catalytic activity. In contrast, the Cu-N configuration in ZIF-derived Cu SACs undergoes irreversible structural changes during the ORR process, in which the elongated Cu-N pair is unstable and breaks during the ORR, acting as a competing reaction against the ORR and resulting in high overpotential requirements. Crucially, operando time-resolved X-ray absorption spectroscopy (TR-XAS) and Raman results unequivocally reveal the reversibly adapting properties of the local Cu-N configuration in atomic Cu-anchored g-C3N4, which have been overlooked in numerous literatures. All findings provide valuable insights into the potential-driven characteristics of atomic electrocatalysts during target reactions and offer a systematic approach to study atomic electrocatalysts and their corresponding catalytic behaviors.
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Affiliation(s)
- Hui-Ying Tan
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Sheng-Chih Lin
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Jiali Wang
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Jui-Hsien Chen
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Jui Chang
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Hung Hou
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Jing-Jong Shyue
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Hao Ming Chen
- Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
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6
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Buceta D, Huseyinova S, Cuerva M, Lozano H, Giovanetti LJ, Ramallo-López JM, López-Caballero P, Zanchet A, Mitrushchenkov AO, Hauser AW, Barone G, Huck-Iriart C, Escudero C, Hernández-Garrido JC, Calvino JJ, López-Haro M, de Lara-Castells MP, Requejo FG, López-Quintela MA. Stability and Reversible Oxidation of Sub-Nanometric Cu 5 Metal Clusters: Integrated Experimental Study and Theoretical Modeling. Chemistry 2023; 29:e202301517. [PMID: 37204268 PMCID: PMC10946568 DOI: 10.1002/chem.202301517] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/20/2023]
Abstract
Sub-nanometer metal clusters have special physical and chemical properties, significantly different from those of nanoparticles. However, there is a major concern about their thermal stability and susceptibility to oxidation. In situ X-ray Absorption spectroscopy and Near Ambient Pressure X-ray Photoelectron spectroscopy results reveal that supported Cu5 clusters are resistant to irreversible oxidation at least up to 773 K, even in the presence of 0.15 mbar of oxygen. These experimental findings can be formally described by a theoretical model which combines dispersion-corrected DFT and first principles thermochemistry revealing that most of the adsorbed O2 molecules are transformed into superoxo and peroxo species by an interplay of collective charge transfer within the network of Cu atoms and large amplitude "breathing" motions. A chemical phase diagram for Cu oxidation states of the Cu5 -oxygen system is presented, clearly different from the already known bulk and nano-structured chemistry of Cu.
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Affiliation(s)
- David Buceta
- Department of Physical Chemistry, Nanomag Laboratory, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Shahana Huseyinova
- Department of Physical Chemistry, Nanomag Laboratory, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Miguel Cuerva
- Department of Physical Chemistry, Nanomag Laboratory, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Héctor Lozano
- Department of Physical Chemistry, Nanomag Laboratory, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Lisandro J Giovanetti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Dto. de Química, Facultad de Ciencias Exactas, UNLP and CONICET, Diag. 113 y 64., 1900, La Plata, Argentina
| | - José M Ramallo-López
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Dto. de Química, Facultad de Ciencias Exactas, UNLP and CONICET, Diag. 113 y 64., 1900, La Plata, Argentina
| | | | - Alexandre Zanchet
- Instituto de Física Fundamental (AbinitSim Unit), CSIC, Serrano 123, 28006, Madrid, Spain
| | | | - Andreas W Hauser
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010, Graz, Austria
| | - Giampaolo Barone
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, 90128, Palermo, Italy
| | - Cristián Huck-Iriart
- Laboratorio de Cristalografía Aplicada, Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín (UNSAM), Campus Miguelete, 25 de Mayo y Francia, 1650, San Martín, Provincia, Buenos Aires, Argentina
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Barcelona, Spain
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Barcelona, Spain
| | - Juan Carlos Hernández-Garrido
- Department of Material Science and Metallurgic Engineering and Inorganic Chemistry, Faculty of Science, University of Cádiz, 11510, Puerto Real, Cádiz, Spain
| | - José Juan Calvino
- Department of Material Science and Metallurgic Engineering and Inorganic Chemistry, Faculty of Science, University of Cádiz, 11510, Puerto Real, Cádiz, Spain
| | - Miguel López-Haro
- Department of Material Science and Metallurgic Engineering and Inorganic Chemistry, Faculty of Science, University of Cádiz, 11510, Puerto Real, Cádiz, Spain
| | | | - Félix G Requejo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Dto. de Química, Facultad de Ciencias Exactas, UNLP and CONICET, Diag. 113 y 64., 1900, La Plata, Argentina
| | - M Arturo López-Quintela
- Department of Physical Chemistry, Nanomag Laboratory, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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7
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Zhang Y, Cao L, Bai G, Lan X. Engineering Single Cu Sites into Covalent Organic Framework for Selective Photocatalytic CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300035. [PMID: 36866454 DOI: 10.1002/smll.202300035] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/16/2023] [Indexed: 06/02/2023]
Abstract
Photocatalytic CO2 conversion into value-added chemicals is a promising route but remains challenging due to poor product selectivity. Covalent organic frameworks (COFs) as an emerging class of porous materials are considered as promising candidates for photocatalysis. Incorporating metallic sites into COF is a successful strategy to realize high photocatalytic activities. Herein, 2,2'-bipyridine-based COF bearing non-noble single Cu sites is fabricated by chelating coordination of dipyridyl units for photocatalytic CO2 reduction. The coordinated single Cu sites not only significantly enhance light harvesting and accelerate electron-hole separation but also provide adsorption and activation sites for CO2 molecules. As a proof of concept, the Cu-Bpy-COF as a representative catalyst exhibits superior photocatalytic activity for reducing CO2 to CO and CH4 without photosensitizer, and impressively, the product selectivity of CO and CH4 can be readily modulated only by changing reaction media. Experimental and theoretical results reveal the crucial role of single Cu sites in promoting photoinduced charge separation and solvent effect in regulating product selectivity, which provides an important sight onto the design of COF photocatalysts for selective CO2 photoreduction.
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Affiliation(s)
- Yize Zhang
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, Hebei, 071002, P. R. China
| | - Lili Cao
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, Hebei, 071002, P. R. China
| | - Guoyi Bai
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, Hebei, 071002, P. R. China
| | - Xingwang Lan
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, Hebei, 071002, P. R. China
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8
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Copper Binding and Redox Activity of α-Synuclein in Membrane-Like Environment. Biomolecules 2023; 13:biom13020287. [PMID: 36830656 PMCID: PMC9953312 DOI: 10.3390/biom13020287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
α-Synuclein (αSyn) constitutes the main protein component of Lewy bodies, which are the pathologic hallmark in Parkinson's disease. αSyn is unstructured in solution but the interaction of αSyn with lipid membrane modulates its conformation by inducing an α-helical structure of the N-terminal region. In addition, the interaction with metal ions can trigger αSyn conformation upon binding and/or through the metal-promoted generation of reactive oxygen species which lead to a cascade of structural alterations. For these reasons, the ternary interaction between αSyn, copper, and membranes needs to be elucidated in detail. Here, we investigated the structural properties of copper-αSyn binding through NMR, EPR, and XAS analyses, with particular emphasis on copper(I) coordination since the reduced state is particularly relevant for oxygen activation chemistry. The analysis was performed in different membrane model systems, such as micellar sodium dodecyl sulfate (SDS) and unilamellar vesicles, comparing the binding of full-length αSyn and N-terminal peptide fragments. The presence of membrane-like environments induced the formation of a copper:αSyn = 1:2 complex where Cu+ was bound to the Met1 and Met5 residues of two helical peptide chains. In this coordination, Cu+ is stabilized and is unreactive in the presence of O2 in catechol substrate oxidation.
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9
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Peng CK, Lin YC, Chiang C, Qian Z, Huang YC, Dong CL, Li J, Chen CT, Hu Z, Chen SY, Lin YG. Zhang-Rice singlets state formed by two-step oxidation for triggering water oxidation under operando conditions. Nat Commun 2023; 14:529. [PMID: 36725864 PMCID: PMC9892518 DOI: 10.1038/s41467-023-36317-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/24/2023] [Indexed: 02/03/2023] Open
Abstract
The production of ecologically compatible fuels by electrochemical water splitting is highly desirable for modern industry. The Zhang-Rice singlet is well known for the superconductivity of high-temperature superconductors cuprate, but is rarely known for an electrochemical catalyst. Herein, we observe two steps of surface reconstruction from initial catalytic inactive Cu1+ in hydrogen treated Cu2O to Cu2+ state and further to catalytic active Zhang-Rice singlet state during the oxygen evolution reaction for water splitting. The hydrogen treated Cu2O catalyst exhibits a superior catalytic activity and stability for water splitting and is an efficient rival of other 3d-transition-metal catalysts. Multiple operando spectroscopies indicate that Zhang-Rice singlet is real active species, since it appears only under oxygen evolution reaction condition. This work provides an insight in developing an electrochemical catalyst from catalytically inactive materials and improves understanding of the mechanism of a Cu-based catalyst for water oxidation.
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Affiliation(s)
- Chun-Kuo Peng
- grid.260539.b0000 0001 2059 7017Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Yu-Chang Lin
- grid.260539.b0000 0001 2059 7017Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010 Taiwan ,grid.410766.20000 0001 0749 1496National Synchrotron Radiation Research Center, Hsinchu, 30076 Taiwan
| | - Chao‐Lung Chiang
- grid.410766.20000 0001 0749 1496National Synchrotron Radiation Research Center, Hsinchu, 30076 Taiwan
| | - Zhengxin Qian
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, 361005 Xiamen, China
| | - Yu-Cheng Huang
- grid.264580.d0000 0004 1937 1055Department of Physics, Tamkang University, New Taipei City, 25137 Taiwan
| | - Chung-Li Dong
- grid.264580.d0000 0004 1937 1055Department of Physics, Tamkang University, New Taipei City, 25137 Taiwan
| | - Jian‐Feng Li
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, 361005 Xiamen, China
| | - Chien-Te Chen
- grid.410766.20000 0001 0749 1496National Synchrotron Radiation Research Center, Hsinchu, 30076 Taiwan
| | - Zhiwei Hu
- grid.419507.e0000 0004 0491 351XMax-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, Dresden, 01187 Germany
| | - San-Yuan Chen
- grid.260539.b0000 0001 2059 7017Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010 Taiwan
| | - Yan-Gu Lin
- grid.410766.20000 0001 0749 1496National Synchrotron Radiation Research Center, Hsinchu, 30076 Taiwan
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10
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Sarma BB, Maurer F, Doronkin DE, Grunwaldt JD. Design of Single-Atom Catalysts and Tracking Their Fate Using Operando and Advanced X-ray Spectroscopic Tools. Chem Rev 2023; 123:379-444. [PMID: 36418229 PMCID: PMC9837826 DOI: 10.1021/acs.chemrev.2c00495] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Indexed: 11/25/2022]
Abstract
The potential of operando X-ray techniques for following the structure, fate, and active site of single-atom catalysts (SACs) is highlighted with emphasis on a synergetic approach of both topics. X-ray absorption spectroscopy (XAS) and related X-ray techniques have become fascinating tools to characterize solids and they can be applied to almost all the transition metals deriving information about the symmetry, oxidation state, local coordination, and many more structural and electronic properties. SACs, a newly coined concept, recently gained much attention in the field of heterogeneous catalysis. In this way, one can achieve a minimum use of the metal, theoretically highest efficiency, and the design of only one active site-so-called single site catalysts. While single sites are not easy to characterize especially under operating conditions, XAS as local probe together with complementary methods (infrared spectroscopy, electron microscopy) is ideal in this research area to prove the structure of these sites and the dynamic changes during reaction. In this review, starting from their fundamentals, various techniques related to conventional XAS and X-ray photon in/out techniques applied to single sites are discussed with detailed mechanistic and in situ/operando studies. We systematically summarize the design strategies of SACs and outline their exploration with XAS supported by density functional theory (DFT) calculations and recent machine learning tools.
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Affiliation(s)
- Bidyut Bikash Sarma
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
| | - Florian Maurer
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
| | - Dmitry E. Doronkin
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
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11
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Mondal P, Viswanatha R. Insights into the Oxidation State of Cu Dopants in II-VI Semiconductor Nanocrystals. J Phys Chem Lett 2022; 13:1952-1961. [PMID: 35188398 DOI: 10.1021/acs.jpclett.1c04076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Luminescent Cu-doped semiconductor nanocrystals have played a pivotal role in the emergence of lighting and display applications for a long time. However, consensus regarding the Cu oxidation state and hence their emission mechanism has not been attained. Distinction between seemingly simple optically and magnetically active Cu2+ and inactive Cu1+ has surprisingly been the subject matter of debate in the literature for more than a decade. In this Perspective, we first discuss the fundamental quantum mechanical phenomenon explaining the optical properties of the monovalent and divalent Cu dopants. We then focus down on various techniques used to differentiate between these two fundamental mechanisms, their benefits, and their pitfalls arising in large part because of the lack of spatial separation. Hence, to obtain a cohesive story consistent with all the observations, we discuss recent results from single-molecule spectroscopy to understand the optical properties and hence the oxidation state of internally doped Cu in doped nanocrystals.
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12
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Wang H, Jia J, Liu S, Chen H, Wei Y, Wang Z, Zheng L, Wang Z, Zhang R. Highly Efficient NO Abatement over Cu-ZSM-5 with Special Nanosheet Features. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:5422-5434. [PMID: 33720690 DOI: 10.1021/acs.est.0c08684] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Conventional Cu-ZSM-5 and special Cu-ZSM-5 catalysts with diverse morphologies (nanoparticles, nanosheets, hollow spheres) were synthesized and comparatively investigated for their performances in the selective catalytic reduction (SCR) of NO to N2 with ammonia. Significant differences in SCR behavior were observed, and nanosheet-like Cu-ZSM-5 showed the best SCR performance with the lowest T50 of 130 °C and nearly complete conversion in the temperature range of 200-400 °C. It was found that Cu-ZSM-5 nanosheets [mainly exposed (0 1 0) crystal plane] with abundant mesopores and framework Al species were favorable for the formation of high external surface areas and Al pairs, which influenced the local environment of Cu. This motivated the preferential formation of active copper species and the rapid switch between Cu2+ and Cu+ species during NH3-SCR, thus exhibiting the highest NO conversion. In situ diffused reflectance infrared Fourier transform spectroscopy (DRIFTS) results indicated that the Cu-ZSM-5 nanosheets were dominated by the Eley-Rideal (E-R) mechanism and the labile nitrite species (NH4NO2) were the crucial intermediates during the NH3-SCR process, while the inert nitrates were more prone to generate on Cu-ZSM-5 nanoparticles and conventional one. The combined density functional theory (DFT) calculations revealed that the decomposition energy barrier of nitrosamide species (NH2NO) on the (0 1 0) crystal plane of Cu-ZSM-5 was lower than those on (0 0 1) and (1 0 0) crystal planes. This study provides a strategy for the design of NH3-SCR zeolite catalysts.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jingbo Jia
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shanshan Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hongxia Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Ying Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zhoujun Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zichun Wang
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Runduo Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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13
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Lee H, Song I, Jeon SW, Kim DH. Mobility of Cu Ions in Cu-SSZ-13 Determines the Reactivity of Selective Catalytic Reduction of NO x with NH 3. J Phys Chem Lett 2021; 12:3210-3216. [PMID: 33761261 DOI: 10.1021/acs.jpclett.1c00181] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Selective catalytic reduction of NOx with NH3 (NH3-SCR) in Cu-SSZ-13 has been proposed to have a unique homogeneous-like mechanism governed by the spatial proximity of mobile Cu ions. Among factors that determine the proximity, the effect of ion density on the SCR reaction is well established; however, it has not been verified how the different mobility of the Cu ion influences the SCR reaction. Herein, we try to reveal the mobility-dependent SCR reaction by controlling the Cu species with different ion mobilities in Cu-SSZ-13. Since the reaction kinetics is governed by the diffusion of Cu ions, the Cu ion mobility determines the reactivity of the Cu-SSZ-13. In terms of this correlation, enhanced ion mobility leads to improved NH3-SCR activity. These findings help understand the behavior of Cu ions in Cu-SSZ-13 under a catalytic reaction and provide insights to design rational catalysts by tuning the ion mobility.
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Affiliation(s)
- Hwangho Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Inhak Song
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Se Won Jeon
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Do Heui Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
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14
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Liu C, Kubota H, Amada T, Toyao T, Maeno Z, Ogura M, Nakazawa N, Inagaki S, Kubota Y, Shimizu KI. Selective catalytic reduction of NO over Cu-AFX zeolites: mechanistic insights from in situ/ operando spectroscopic and DFT studies. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00282a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ/operando spectroscopic experiments and DFT calculations unravel the redox mechanism of NH3-SCR over Cu-AFX zeolites.
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Affiliation(s)
- Chong Liu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Hiroe Kubota
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Takehiro Amada
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Takashi Toyao
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
- Elements Strategy Initiative for Catalysts and Batteries
| | - Zen Maeno
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Masaru Ogura
- Elements Strategy Initiative for Catalysts and Batteries
- Kyoto University
- Kyoto 615-8520
- Japan
- Institute of Industrial Science
| | - Naoto Nakazawa
- Division of Materials Science and Chemical Engineering
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Satoshi Inagaki
- Division of Materials Science and Chemical Engineering
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Yoshihiro Kubota
- Division of Materials Science and Chemical Engineering
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
- Elements Strategy Initiative for Catalysts and Batteries
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15
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Becher J, Sanchez DF, Doronkin DE, Zengel D, Meira DM, Pascarelli S, Grunwaldt JD, Sheppard TL. Chemical gradients in automotive Cu-SSZ-13 catalysts for NOx removal revealed by operando X-ray spectrotomography. Nat Catal 2020. [DOI: 10.1038/s41929-020-00552-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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16
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Oda A, Shionoya H, Hotta Y, Takewaki T, Sawabe K, Satsuma A. Spectroscopic Evidence of Efficient Generation of Dicopper Intermediate in Selective Catalytic Reduction of NO over Cu-Ion-Exchanged Zeolites. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03425] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Akira Oda
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
| | - Hitomi Shionoya
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Yuusuke Hotta
- Science & Innovation Center, Inorganic Materials Laboratory, Mitsubishi Chemical Corporation, Yokohama 227-8502, Japan
| | - Takahiko Takewaki
- Science & Innovation Center, Inorganic Materials Laboratory, Mitsubishi Chemical Corporation, Yokohama 227-8502, Japan
| | - Kyoichi Sawabe
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Atsushi Satsuma
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
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17
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Yilmaz M, Handoko AD, Parkin IP, Sankar G. Probing the electronic and geometric structures of photoactive electrodeposited Cu2O films by X-ray absorption spectroscopy. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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A nature-inspired hydrogen-bonded supramolecular complex for selective copper ion removal from water. Nat Commun 2020; 11:3947. [PMID: 32769977 PMCID: PMC7415137 DOI: 10.1038/s41467-020-17757-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 07/16/2020] [Indexed: 01/08/2023] Open
Abstract
Herein, we present a scalable approach for the synthesis of a hydrogen-bonded organic–inorganic framework via coordination-driven supramolecular chemistry, for efficient remediation of trace heavy metal ions from water. In particular, using copper as our model ion of interest and inspired by nature’s use of histidine residues within the active sites of various copper binding proteins, we design a framework featuring pendant imidazole rings and copper-chelating salicylaldoxime, known as zinc imidazole salicylaldoxime supramolecule. This material is water-stable and exhibits unprecedented adsorption kinetics, up to 50 times faster than state-of-the-art materials for selective copper ion capture from water. Furthermore, selective copper removal is achieved using this material in a pH range that was proven ineffective with previously reported metal–organic frameworks. Molecular dynamics simulations show that this supramolecule can reversibly breathe water through lattice expansion and contraction, and that water is initially transported into the lattice through hopping between hydrogen-bond sites. Heavy metals and metalloids pose major threats to health and environmental ecosystems, thus systems for low-cost remediation are needed. Here the authors report the scalable design of a hydrogen-bonded organic–inorganic framework for selective removal of trace heavy metal ions from water.
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19
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Balogh RK, Gyurcsik B, Jensen M, Thulstrup PW, Köster U, Christensen NJ, Mørch FJ, Jensen ML, Jancsó A, Hemmingsen L. Flexibility of the CueR Metal Site Probed by Instantaneous Change of Element and Oxidation State from Ag I to Cd II. Chemistry 2020; 26:7451-7457. [PMID: 32045037 PMCID: PMC7317920 DOI: 10.1002/chem.202000132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Indexed: 02/06/2023]
Abstract
Selectivity for monovalent metal ions is an important facet of the function of the metalloregulatory protein CueR. 111Ag perturbed angular correlation of γ‐rays (PAC) spectroscopy probes the metal site structure and the relaxation accompanying the instantaneous change from AgI to CdII upon 111Ag radioactive decay. That is, a change from AgI, which activates transcription, to CdII, which does not. In the frozen state (−196 °C) two nuclear quadrupole interactions (NQIs) are observed; one (NQI1) agrees well with two coordinating thiolates and an additional longer contact to the S77 backbone carbonyl, and the other (NQI2) reflects that CdII has attracted additional ligand(s). At 1 °C only NQI2 is observed, demonstrating that relaxation to this structure occurs within ≈10 ns of the decay of 111Ag. Thus, transformation from AgI to CdII rapidly disrupts the functional linear bis(thiolato)AgI metal site structure. This inherent metal site flexibility may be central to CueR function, leading to remodelling into a non‐functional structure upon binding of non‐cognate metal ions. In a broader perspective, 111Ag PAC spectroscopy may be applied to probe the flexibility of protein metal sites.
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Affiliation(s)
- Ria K Balogh
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, 6720, Szeged, Hungary
| | - Béla Gyurcsik
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, 6720, Szeged, Hungary
| | - Mikael Jensen
- Hevesy Laboratory, DTU-Health, Technical University of Denmark, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Peter W Thulstrup
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Ulli Köster
- Institut Laue-Langevin, 71 avenue des Martyrs, 38042, Grenoble, France
| | - Niels Johan Christensen
- Department of Chemistry, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1, 871, Frederiksberg C, Denmark
| | - Frederik J Mørch
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Marianne L Jensen
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Attila Jancsó
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, 6720, Szeged, Hungary
| | - Lars Hemmingsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
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20
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Yang Y, Tan M, Garcia A, Zhang Z, Lin J, Wan S, McEwen JS, Wang S, Wang Y. Controlling the Oxidation State of Fe-Based Catalysts through Nitrogen Doping toward the Hydrodeoxygenation of m-Cresol. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00626] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanling Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingwu Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Aidan Garcia
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
| | - Zhaoxia Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jingdong Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shaolong Wan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jean-Sabin McEwen
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
- Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164, United States
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Biological Systems Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Shuai Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yong Wang
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
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21
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Liu C, Kubota H, Amada T, Kon K, Toyao T, Maeno Z, Ueda K, Ohyama J, Satsuma A, Tanigawa T, Tsunoji N, Sano T, Shimizu K. In Situ
Spectroscopic Studies on the Redox Cycle of NH
3
−SCR over Cu−CHA Zeolites. ChemCatChem 2020. [DOI: 10.1002/cctc.202000024] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chong Liu
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Hiroe Kubota
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Takehiro Amada
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Kenichi Kon
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Takashi Toyao
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
- Elements Strategy Initiative for Catalysts and BatteriesKyoto University Katsura, Kyoto 615-8520 Japan
| | - Zen Maeno
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Kakuya Ueda
- Department of Materials Chemistry, Graduate School of EngineeringNagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan
| | - Junya Ohyama
- Elements Strategy Initiative for Catalysts and BatteriesKyoto University Katsura, Kyoto 615-8520 Japan
- Faculty of Advanced Science and TechnologyKumamoto University 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555 Japan
| | - Atsushi Satsuma
- Elements Strategy Initiative for Catalysts and BatteriesKyoto University Katsura, Kyoto 615-8520 Japan
- Department of Materials Chemistry, Graduate School of EngineeringNagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan
| | - Takuya Tanigawa
- Department of Applied Chemistry, Graduate School of EngineeringHiroshima University Higashi-Hiroshima 739-8527 Japan
| | - Nao Tsunoji
- Department of Applied Chemistry, Graduate School of EngineeringHiroshima University Higashi-Hiroshima 739-8527 Japan
| | - Tsuneji Sano
- Department of Applied Chemistry, Graduate School of EngineeringHiroshima University Higashi-Hiroshima 739-8527 Japan
| | - Ken‐ichi Shimizu
- Institute for CatalysisHokkaido University N-21, W-10 Sapporo 001-0021 Japan
- Elements Strategy Initiative for Catalysts and BatteriesKyoto University Katsura, Kyoto 615-8520 Japan
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22
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Pankin IA, Martini A, Lomachenko KA, Soldatov AV, Bordiga S, Borfecchia E. Identifying Cu-oxo species in Cu-zeolites by XAS: A theoretical survey by DFT-assisted XANES simulation and EXAFS wavelet transform. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.09.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Liu C, Kubota H, Toyao T, Maeno Z, Shimizu KI. Mechanistic insights into the oxidation of copper(i) species during NH3-SCR over Cu-CHA zeolites: a DFT study. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00379d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
DFT calculations suggest that Cu(i) oxidation with O2 as the sole oxidant plays a major role in the oxidation half cycle of standard NH3-SCR over Cu-CHA zeolites.
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Affiliation(s)
- Chong Liu
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Hiroe Kubota
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Takashi Toyao
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
- Elements Strategy Initiative for Catalysts and Batteries
| | - Zen Maeno
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis
- Hokkaido University
- Sapporo 001-0021
- Japan
- Elements Strategy Initiative for Catalysts and Batteries
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24
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Wang M, Árnadóttir L, Xu ZJ, Feng Z. In Situ X-ray Absorption Spectroscopy Studies of Nanoscale Electrocatalysts. NANO-MICRO LETTERS 2019; 11:47. [PMID: 34138000 PMCID: PMC7770664 DOI: 10.1007/s40820-019-0277-x] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/13/2019] [Indexed: 05/06/2023]
Abstract
Nanoscale electrocatalysts have exhibited promising activity and stability, improving the kinetics of numerous electrochemical reactions in renewable energy systems such as electrolyzers, fuel cells, and metal-air batteries. Due to the size effect, nano particles with extreme small size have high surface areas, complicated morphology, and various surface terminations, which make them different from their bulk phases and often undergo restructuring during the reactions. These restructured materials are hard to probe by conventional ex-situ characterizations, thus leaving the true reaction centers and/or active sites difficult to determine. Nowadays, in situ techniques, particularly X-ray absorption spectroscopy (XAS), have become an important tool to obtain oxidation states, electronic structure, and local bonding environments, which are critical to investigate the electrocatalysts under real reaction conditions. In this review, we go over the basic principles of XAS and highlight recent applications of in situ XAS in studies of nanoscale electrocatalysts.
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Affiliation(s)
- Maoyu Wang
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA
| | - Líney Árnadóttir
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA
| | - Zhichuan J Xu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zhenxing Feng
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA.
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25
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Petitjean H, Chizallet C, Berthomieu D. Modeling Ammonia and Water Co-Adsorption in CuI-SSZ-13 Zeolite Using DFT Calculations. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03821] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hugo Petitjean
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM, Montpellier, France
| | - Céline Chizallet
- IFP Energies Nouvelles, Rond-point de l’échangeur de Solaize, BP3, 69360 Solaize, France
| | - Dorothée Berthomieu
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM, Montpellier, France
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26
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Zhang R, Anderst E, Groden K, McEwen JS. Modeling the Adsorption of NO and NH3 on Fe-SSZ-13 from First-Principles: A DFT Study. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03643] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Renqin Zhang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
| | - Emily Anderst
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
| | - Kyle Groden
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
| | - Jean-Sabin McEwen
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
- Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164, United States
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Biological Systems Engineering, Washington State University, Pullman, Washington 99164, United States
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27
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Rudolph J, Jacob CR. Revisiting the Dependence of Cu K-Edge X-ray Absorption Spectra on Oxidation State and Coordination Environment. Inorg Chem 2018; 57:10591-10607. [PMID: 30113840 DOI: 10.1021/acs.inorgchem.8b01219] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
X-ray absorption spectroscopy (XAS) at the Cu K-edge is an important tool for probing the properties of copper centers in transition-metal chemistry and catalysis. However, the interpretation of experimental XAS spectra requires a detailed understanding of the dependence of spectroscopic features on the local geometric and electronic structure, which can be established by theoretical X-ray spectroscopy. Here, we present a systematic computational study of the Cu K-edge XAS spectra of selected Cu complexes based on time-dependent density-functional theory in combination with a molecular orbital analysis of the relevant transitions. For a series of Cu ammine model complexes as well as a comprehensive test set of 12 Cu(I) and 5 Cu(II) complexes, we revisit the dependence of the pre-edge region in Cu K-edge XAS spectra on oxidation state and coordination geometry. While our calculations confirm earlier experimental assignments, we can also reveal additional signatures of the ligand orbitals and identify the underlying orbital interactions. The comprehensive picture revealed by this study will provide a reliable basis for the interpretation of in situ Cu K-edge XAS spectra of catalytic intermediates.
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Affiliation(s)
- Julian Rudolph
- Institute of Physical and Theoretical Chemistry , TU Braunschweig , Gaußstraße 17 , 38106 Braunschweig , Germany
| | - Christoph R Jacob
- Institute of Physical and Theoretical Chemistry , TU Braunschweig , Gaußstraße 17 , 38106 Braunschweig , Germany
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