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Marino M, Molteni E, Achilli S, Onida G, Fratesi G. Ab Initio Electronic, Magnetic, and Optical Properties of Fe Phthalocyanine on Cr 2O 3(0001). Molecules 2024; 29:2889. [PMID: 38930954 PMCID: PMC11206909 DOI: 10.3390/molecules29122889] [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: 05/20/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024] Open
Abstract
The organic molecules adsorbed on antiferromagnetic surfaces can produce interesting interface states, characterized by charge transfer mechanisms, hybridization of molecular-substrate orbitals, as well as magnetic couplings. Here, we apply an ab initio approach to study the adsorption of Fe phthalocyanine on stoichiometric Cr2O3(0001). The molecule binds via a bidentate configuration forming bonds between two opposite imide N atoms and two protruding Cr ones, making this preferred over the various possible adsorption structures. In addition to the local modifications at these sites, the electronic structure of the molecule is weakly influenced. The magnetic structure of the surface Cr atoms shows a moderate influence of molecule adsorption, not limited to the atoms in the close proximity of the molecule. Upon optical excitation at the onset, electron density moves toward the molecule, enhancing the ground state charge transfer. We investigate this movement of charge as a mechanism at the base of light-induced modifications of the magnetic structure at the interface.
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Affiliation(s)
- Marco Marino
- ETSF and Physics Department “Aldo Pontremoli”, University of Milan, Via Celoria 16, 20133 Milan, Italy; (E.M.); (S.A.); (G.O.)
| | | | | | | | - Guido Fratesi
- ETSF and Physics Department “Aldo Pontremoli”, University of Milan, Via Celoria 16, 20133 Milan, Italy; (E.M.); (S.A.); (G.O.)
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Mohamed MA, Arnold S, Janka O, Quade A, Presser V, Kickelbick G. Self-Activation of Inorganic-Organic Hybrids Derived through Continuous Synthesis of Polyoxomolybdate and para-Phenylenediamine Enables Very High Lithium-Ion Storage Capacity. CHEMSUSCHEM 2023; 16:e202202213. [PMID: 36542465 DOI: 10.1002/cssc.202202213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Inorganic-organic hybrid materials with redox-active components were prepared by an aqueous precipitation reaction of ammonium heptamolybdate (AHM) with para-phenylenediamine (PPD). A scalable and low-energy continuous wet chemical synthesis process, known as the microjet process, was used to prepare particles with large surface area in the submicrometer range with high purity and reproducibility on a large scale. Two different crystalline hybrid products were formed depending on the ratio of molybdate to organic ligand and pH. A ratio of para-phenylenediamine to ammonium heptamolybdate from 1 : 1 to 5 : 1 resulted in the compound [C6 H10 N2 ]2 [Mo8 O26 ] ⋅ 6 H2 O, while higher PPD ratios from 9 : 1 to 30 : 1 yielded a composition of [C6 H9 N2 ]4 [NH4 ]2 [Mo7 O24 ] ⋅ 3 H2 O. The electrochemical behavior of the two products was tested in a battery cell environment. Only the second of the two hybrid materials showed an exceptionally high capacity of 1084 mAh g-1 at 100 mA g-1 after 150 cycles. The maximum capacity was reached after an induction phase, which can be explained by a combination of a conversion reaction with lithium to Li2 MoO4 and an additional in situ polymerization of PPD. The final hybrid material is a promising material for lithium-ion battery (LIB) applications.
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Affiliation(s)
- Mana Abdirahman Mohamed
- Inorganic Solid-State Chemistry, Saarland University, Campus C4 1, 66123, Saarbrücken, Germany
| | - Stefanie Arnold
- INM-Leibniz Institute for New Materials, 66123, Saarbrücken, Germany
- Department of Materials Science and Engineering, Saarland University, 66123, Saarbrücken, Germany
| | - Oliver Janka
- Inorganic Solid-State Chemistry, Saarland University, Campus C4 1, 66123, Saarbrücken, Germany
| | - Antje Quade
- Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Straße 2, 17489, Greifswald, Germany
| | - Volker Presser
- INM-Leibniz Institute for New Materials, 66123, Saarbrücken, Germany
- Department of Materials Science and Engineering, Saarland University, 66123, Saarbrücken, Germany
- Saarene-Saarland Center for Energy Materials and Sustainability, 66123, Saarbrücken, Germany
| | - Guido Kickelbick
- Inorganic Solid-State Chemistry, Saarland University, Campus C4 1, 66123, Saarbrücken, Germany
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Wu G, Liu Q, Ma L, Tian L, Ran J, Pan Y, Han J, Xing W. The promoted organic pollutant and visible-light-driven photocatalytic degradation efficiency of MIL-101(Fe)/Bi2WO6 Z-scheme heterojunction assisting and mechanism. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gao Z, Cai L, Miao C, Hui T, Wang Q, Li D, Feng J. Electronic Metal−Support Interaction Strengthened Pt/CoAl‐LDHs Catalyst for Selective Cinnamaldehyde Hydrogenation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhexi Gao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Luoyu Cai
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Chenglin Miao
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Tianli Hui
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Qian Wang
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Dianqing Li
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering CHINA
| | - Junting Feng
- Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering 98#, No.15, Beisanhuan East Road 100029 Beijing CHINA
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Zhang Y, Park SJ. Phosphorization-derived MoP@MoO3-x nanowires for selective photocatalytic oxidation of benzyl alcohol to benzaldehyde. J Catal 2021. [DOI: 10.1016/j.jcat.2020.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Wang L, Liu X, Cao L, Zhang W, Chen T, Lin Y, Wang H, Wang Y, Yao T. Active Sites of Single-Atom Iron Catalyst for Electrochemical Hydrogen Evolution. J Phys Chem Lett 2020; 11:6691-6696. [PMID: 32787221 DOI: 10.1021/acs.jpclett.0c01943] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrochemical water splitting in alkaline media is an attractive way to produce the clear and renewable hydrogen fuel H2. In this work, we report a single-atom Fe1/NC catalyst, where the Fe-Nx moiety works as the active site, for high-efficiency alkaline hydrogen evolution reaction (HER). The Fe1/NC electrocatalyst exhibits a low overpotential of 111 mV at the current density of 10 mA cm-2, with a Tafel slope of 86.1 mV dec-1 in 1 M KOH solution. Operando X-ray absorption spectroscopy reveals that, under the working states, the Fe-support interaction weakened as the Fe-N coordination number and Fe oxidation state decreased. As such, the evolved single-atom Fe site with more d electrons provides a favorable structure for boosting HER performance. This work gives insight into the structural evolution of the active site under the alkaline HER and provides a strategy for the design of non-noble metal electrocatalysts.
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Affiliation(s)
- Lan Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
- School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010, P.R. China
| | - Xiaokang Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Linlin Cao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Wei Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Tao Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
- School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010, P.R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Huijuan Wang
- Experimental Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Yi Wang
- Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Tao Yao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China
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Witkowski N, Lüder J, Bidermane I, Farronato M, Prévot G, Bouvet M, Puglia C, Brena B. Grafting, self-organization and reactivity of double-decker rare-earth phthalocyanine. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Unveiling the interplay of semiconducting organic molecules with their environment, such as inorganic materials or atmospheric gas, is the first step to designing hybrid devices with tailored optical, electronic or magnetic properties. The present article focuses on a double-decker lutetium phthalocyanine known as an intrinsic semiconducting molecule, holding a Lu ion in its center, sandwiched between two phthalocyanine rings. Carrying out experimental investigations by means of electron spectroscopies, X-ray diffraction and scanning probe microscopies together with advanced ab initio computations, allows us to unveil how this molecule interacts with weakly or highly reactive surfaces. Our studies reveal that a molecule–surface interaction is evidenced when molecules are deposited on bare silicon or on gold surfaces together with a charge transferred from the substrate to the molecule, affecting to a higher extent the lower ring of the molecule. A new packing of the molecules on gold surfaces is proposed: an eclipse configuration in which molecules are flat and parallel to the surface, even for thick films of several hundreds of nanometers. Surprisingly, a robust tolerance of the double-decker phthalocyanine toward oxygen molecules is demonstrated, leading to weak chemisorption of oxygen below 100 K.
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Affiliation(s)
- Nadine Witkowski
- Sorbonne Université, UMR CNRS 7588, Institut des Nanosciences de Paris, 4 Pl. Jussieu, F-75005 Paris, France
| | - Johann Lüder
- Department of Physics and Astronomy, Uppsala University, BOX 516, SE-75120 Uppsala, Sweden
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Ieva Bidermane
- Sorbonne Université, UMR CNRS 7588, Institut des Nanosciences de Paris, 4 Pl. Jussieu, F-75005 Paris, France
- Department of Physics and Astronomy, Uppsala University, BOX 516, SE-75120 Uppsala, Sweden
| | - Mattia Farronato
- Sorbonne Université, UMR CNRS 7588, Institut des Nanosciences de Paris, 4 Pl. Jussieu, F-75005 Paris, France
| | - Geoffroy Prévot
- Sorbonne Université, UMR CNRS 7588, Institut des Nanosciences de Paris, 4 Pl. Jussieu, F-75005 Paris, France
| | - Marcel Bouvet
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB),CNRS UMR 6302, Université Bourgogne Franche-Comté, F-21078 Dijon, France
| | - Carla Puglia
- Department of Physics and Astronomy, Uppsala University, BOX 516, SE-75120 Uppsala, Sweden
| | - Barbara Brena
- Department of Physics and Astronomy, Uppsala University, BOX 516, SE-75120 Uppsala, Sweden
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Qian D, Su Y, Huang Y, Chu H, Zhou X, Zhang Y. Simultaneous molybdate (Mo(VI)) recovery and hazardous ions immobilization via nanoscale zerovalent iron. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:698-706. [PMID: 29154095 DOI: 10.1016/j.jhazmat.2017.10.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 10/10/2017] [Accepted: 10/18/2017] [Indexed: 06/07/2023]
Abstract
Nanoscale zerovalent iron (nZVI) shows great promise in valuable metal recovery from wastewater due to its high removal capacity. However, nZVI-based processes mainly focus on the sequestration step, ignoring the desorption step, which is crucial for recovery. In this study, a novel method for simultaneous Mo(VI) recovery and hazardous metal ions immobilization by nZVI was developed and the reaction mechanism was further investigated. Results shown that removal capacity of nZVI was significantly influenced by surface charge and the number of active adsorption sites. X-ray photoelectron spectroscopy analysis demonstrated that Mo(VI) reduction occurred in the inner Fe(0) core. K-edge X-ray Absorption Near Edge Structure analysis further confirmed that 5.4% and 18.0% of Mo(VI) are reduced to Mo(IV) at pH 6 and 9, respectively, suggesting that high pH favors for Mo(VI) reduction and H+ is responsible for the hollow-out structure at pH 6. Through adjusting the pH of wastewater from 3 to 12, over 80% of adsorbed Mo(VI) could be recovered while other metal ions remained immobilized and limited influence with common ions/anions. Overall, the proposed mechanism was significant to the research of metal reduction and competition for proton of nZVI, and the developed method had great prospects in valuable anions recovery.
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Affiliation(s)
- Dongxu Qian
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
| | - Yiming Su
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China; College of Civil Engineering, Tongji University, Shanghai 200092, China
| | - Yuxiong Huang
- Bren School of Environmental Science and Management, University of California, Santa Barbara, United States
| | - Huaqiang Chu
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
| | - Xuefei Zhou
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
| | - Yalei Zhang
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China.
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Han Z, Han X, Zhao X, Yu J, Xu H. Iron phthalocyanine supported on amidoximated PAN fiber as effective catalyst for controllable hydrogen peroxide activation in oxidizing organic dyes. JOURNAL OF HAZARDOUS MATERIALS 2016; 320:27-35. [PMID: 27505291 DOI: 10.1016/j.jhazmat.2016.08.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/01/2016] [Accepted: 08/02/2016] [Indexed: 05/16/2023]
Abstract
Iron(II) phthalocyanine was immobilized onto amidoximated polyacrylonitrile fiber to construct a bioinspired catalytic system for oxidizing organic dyes by H2O2 activation. The amidoxime groups greatly helped to anchor Iron(II) phthalocyanine molecules onto the fiber through coordination interaction, which has been confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectroscopy analyses. Electron spin resonance studies indicate that the catalytic process of physically anchored Iron(II) phthalocyanine performed via a hydroxyl radical pathway, while the catalyst bonded Iron(II) phthalocyanine through coordination effect could selectively catalyze the H2O2 decomposition to generate high-valent iron-oxo species. This may result from the amidoxime groups functioning as the axial fifth ligands to favor the heterolytic cleavage of the peroxide OO bond. This feature also enables the catalyst to only degrade the dyes adjacent to the catalytic active centers and enhances the efficient utilization of H2O2. In addition, this catalyst could effectively catalyze the mineralization of organic dyes and can be easily recycled without any loss of activity.
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Affiliation(s)
- Zhenbang Han
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; Key Laboratory of Advanced Textile Composite Materials, Ministry of Education of China, Tianjin 300387, China.
| | - Xu Han
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Xiaoming Zhao
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China; Key Laboratory of Advanced Textile Composite Materials, Ministry of Education of China, Tianjin 300387, China.
| | - Jiantao Yu
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Hang Xu
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
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