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Ren J, Li Q, Zhu Z, Qiu Y, Yu F, Zhou T, Yang X, Ye K, Wang Y, Ma J, Zhao J. Highly Selective Recovery of Gold by In Situ Magnetic Field-Assisted Fe/Co-MOF@PDA/NdFeB Double Network Gel. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404241. [PMID: 39206614 DOI: 10.1002/smll.202404241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 08/01/2024] [Indexed: 09/04/2024]
Abstract
There are enormous economic benefits to conveniently increasing the selective recovery capacity of gold. Fe/Co-MOF@PDA/NdFeB double-network organogel (Fe/Co-MOF@PDA NH) is synthesized by aggregation assembly strategy. The package of PDA provides a large number of nitrogen-containing functional groups that can serve as adsorption sites for gold ions, resulting in a 21.8% increase in the ability of the material to recover gold. Fe/Co-MOF@PDA NH possesses high gold recovery capacity (1478.87 mg g-1) and excellent gold selectivity (Kd = 5.71 mL g-1). With the assistance of an in situ magnetic field, the gold recovery capacity of Fe/Co-MOF@PDA NH is increased from 1217.93 to 1478.87 mg g-1, and the recovery rate increased by 24.7%. The above excellent performance is attributed to the efficient reduction of gold by FDC/FC+, Co2+/Co3+ double reducing couple, and the optimization of the reduction reaction by the magnetic field. After the samples are calcined, high-purity gold (95.6%, 22K gold) is recovered by magnetic separation. This study proposes a forward-looking in situ energy field-assisted strategy to enhance precious metal recovery, which has a guiding role in the development of low-carbon industries.
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Affiliation(s)
- Jianran Ren
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qiang Li
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Zhiliang Zhu
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Yanling Qiu
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Fei Yu
- College of Oceanography and Ecological Science, Shanghai Ocean University, No 999, Huchenghuan Road, Shanghai, 201306, P. R. China
| | - Tao Zhou
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Xue Yang
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
| | - Kang Ye
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
| | - Yabo Wang
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
| | - Jie Ma
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Jianfu Zhao
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
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Serrano-Jiménez J, de la Osa A, Sánchez P, Romero A, de Lucas-Consuegra A. Boosting the Electrolysis of Monosaccharide-Based Streams in an Anion-Exchange Membrane Cell. ENERGY & FUELS : AN AMERICAN CHEMICAL SOCIETY JOURNAL 2024; 38:10038-10049. [PMID: 38863685 PMCID: PMC11164063 DOI: 10.1021/acs.energyfuels.4c00136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/24/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024]
Abstract
A systematic study on the electrochemical reforming of monosaccharides (fructose, glucose, and xylose) using Pt-based anodic electrocatalysts is here presented for the first time to completely optimize the anodic catalyst and electrolyzer operating conditions. First, the electro-oxidation of each molecule was studied using a monometallic (Pt) and two bimetallic (PtNi and PtCo) anodic electrocatalysts supported on graphene nanoplatelets (GNPs). Tests in a three-electrode cell showed superior electrochemical activity and durability of PtNi/GNPs, especially at potentials higher than 1.2 V vs RHE, with the highest electrocatalytic activity in d-xylose electro-oxidation. Then, monometallic (Pt and Ni) and bimetallic electrocatalysts with different Pt:Ni mass ratios (1:1 and 2:1) were studied for d-xylose electro-oxidation, with the 2:1 mass ratio presenting the best results. This electrocatalyst was selected as the most suitable for scale-up to an anion-exchange membrane electrolyzer, where the optimal operating potential was determined. Additionally, stable operating conditions of the electrolyzer were achieved by cyclic H2 production and cathodic regeneration polarization steps. This led to suitable and reproducible H2 production rates throughout the production cycles for renewable hydrogen production from biomass-derived streams.
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Affiliation(s)
- J. Serrano-Jiménez
- Department
of Chemical Engineering, School of Chemical Sciences and Technologies, University of Castilla-La Mancha, Avda. Camilo José Cela 12, E-13071 Ciudad Real, Spain
| | - A.R. de la Osa
- Department
of Chemical Engineering, School of Chemical Sciences and Technologies, University of Castilla-La Mancha, Avda. Camilo José Cela 12, E-13071 Ciudad Real, Spain
| | - P. Sánchez
- Department
of Chemical Engineering, School of Chemical Sciences and Technologies, University of Castilla-La Mancha, Avda. Camilo José Cela 12, E-13071 Ciudad Real, Spain
| | - A. Romero
- Department
of Chemical Engineering, Higher Technical School of Agronomical Engineers, University of Castilla-La Mancha, Ronda de Calatrava 7, E-13071 Ciudad Real, Spain
| | - A. de Lucas-Consuegra
- Department
of Chemical Engineering, School of Chemical Sciences and Technologies, University of Castilla-La Mancha, Avda. Camilo José Cela 12, E-13071 Ciudad Real, Spain
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Okon IB, Onate CA, Horchani R, Popoola OO, Omugbe E, William ES, Okorie US, Inyang EP, Isonguyo CN, Udoh ME, Antia AD, Chen WL, Eyube ES, Araujo JP, Ikot AN. Thermomagnetic properties and its effects on Fisher entropy with Schioberg plus Manning-Rosen potential (SPMRP) using Nikiforov-Uvarov functional analysis (NUFA) and supersymmetric quantum mechanics (SUSYQM) methods. Sci Rep 2023; 13:8193. [PMID: 37210425 DOI: 10.1038/s41598-023-34521-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/03/2023] [Indexed: 05/22/2023] Open
Abstract
Thermomagnetic properties, and its effects on Fisher information entropy with Schioberg plus Manning-Rosen potential are studied using NUFA and SUSYQM methods in the presence of the Greene-Aldrich approximation scheme to the centrifugal term. The wave function obtained was used to study Fisher information both in position and momentum spaces for different quantum states by the gamma function and digamma polynomials. The energy equation obtained in a closed form was used to deduce numerical energy spectra, partition function, and other thermomagnetic properties. The results show that with an application of AB and magnetic fields, the numerical energy eigenvalues for different magnetic quantum spins decrease as the quantum state increases and completely removes the degeneracy of the energy spectra. Also, the numerical computation of Fisher information satisfies Fisher information inequality products, indicating that the particles are more localized in the presence of external fields than in their absence, and the trend shows complete localization of quantum mechanical particles in all quantum states. Our potential reduces to Schioberg and Manning-Rosen potentials as special cases. Our potential reduces to Schioberg and Manning-Rosen potentials as special cases. The energy equations obtained from the NUFA and SUSYQM were the same, demonstrating a high level of mathematical precision.
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Affiliation(s)
- I B Okon
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - C A Onate
- Department of Physics, Kogi State University, Anyigba, Nigeria
| | - R Horchani
- Department of Physics, College of Science, Sultan Qaboos University, Muscat, Sultanate of Oman.
| | - O O Popoola
- Department of Physics, University of Ibadan, Ibadan, Nigeria
| | - E Omugbe
- Department of Physics, University of Agriculture and Environmental Sciences, Umuagwo, P.M.B. 1038, Imo State, Nigeria
| | - E S William
- Department of Physics, Federal University of Technology, Ikot Abasi, Nigeria
| | - U S Okorie
- Department of Physics, Akwa Ibom State University, Mkpat-Enin, Nigeria
| | - E P Inyang
- Department of Physics, National Open University of Nigeria, Jabi-Abuja, Nigeria
| | - C N Isonguyo
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - M E Udoh
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - A D Antia
- Theoretical Physics Group, Department of Physics, University of Uyo, Uyo, Nigeria
| | - W L Chen
- School of Intelligent Science and Information Engineering, Xi'an Peihua University, Xi'an, 710125, China
| | - E S Eyube
- Department of Physics, Faculty of Physical Sciences, Modibbo Adama University, P.M.B. 2076, Yola, Adamawa State, Nigeria
| | - J P Araujo
- Department of Mathematics, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais, Juiz de Fora, Brazil
| | - A N Ikot
- Theoretical Physics Group, Department of Physics, University of Port Harcourt, Port Harcourt, Nigeria
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Biz C, Gracia J, Fianchini M. Review on Magnetism in Catalysis: From Theory to PEMFC Applications of 3d Metal Pt-Based Alloys. Int J Mol Sci 2022; 23:14768. [PMID: 36499096 PMCID: PMC9739051 DOI: 10.3390/ijms232314768] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
The relationship between magnetism and catalysis has been an important topic since the mid-20th century. At present time, the scientific community is well aware that a full comprehension of this relationship is required to face modern challenges, such as the need for clean energy technology. The successful use of (para-)magnetic materials has already been corroborated in catalytic processes, such as hydrogenation, Fenton reaction and ammonia synthesis. These catalysts typically contain transition metals from the first to the third row and are affected by the presence of an external magnetic field. Nowadays, it appears that the most promising approach to reach the goal of a more sustainable future is via ferromagnetic conducting catalysts containing open-shell metals (i.e., Fe, Co and Ni) with extra stabilization coming from the presence of an external magnetic field. However, understanding how intrinsic and extrinsic magnetic features are related to catalysis is still a complex task, especially when catalytic performances are improved by these magnetic phenomena. In the present review, we introduce the relationship between magnetism and catalysis and outline its importance in the production of clean energy, by describing the representative case of 3d metal Pt-based alloys, which are extensively investigated and exploited in PEM fuel cells.
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Affiliation(s)
- Chiara Biz
- MagnetoCat SL, General Polavieja 9 3I, 03012 Alicante, Spain
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Vicente Sos Baynat s/n, 12071 Castellón de la Plana, Spain
| | - José Gracia
- MagnetoCat SL, General Polavieja 9 3I, 03012 Alicante, Spain
| | - Mauro Fianchini
- MagnetoCat SL, General Polavieja 9 3I, 03012 Alicante, Spain
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5
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Magnetic-Field-Induced Strain Enhances Electrocatalysis of FeCo Alloys on Anode Catalysts for Water Splitting. METALS 2022. [DOI: 10.3390/met12050800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In water splitting, the oxygen evolution reaction (OER) performance of transition metal alloy catalysts needs to be further improved. To solve this problem, the method of an external magnetic field was used to improve the OER catalytic performance of the alloy catalyst. In this paper, FeCo alloys with different composition ratios were prepared by an arc melting method, and OER catalysts with different compositions were obtained by annealing treatment. Under the action of a magnetic field, all three groups of catalysts showed a better catalytic performance than those without a magnetic field. The overpotentials of Fe35Co65, Fe22Co78 and Fe15Co85 at a current density of 20 mA cm−2 were reduced by 12 mV, 6 mV and 2 mV, respectively. It is found that, due to the magnetostrictive properties of FeCo alloys, the catalyst itself will generate strain under the action of a magnetic field, and the existence of strain may be the main reason for the enhanced OER performance of the magnetic field. Therefore, this work provides a new idea for the development of magnetic material catalysts and a magnetic field to improve the performance of catalysts.
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Sengupta R, Raghavendra, Pooja RG, Gupta SK, Kumar B, Joshi RS. Magnetic Surfaces for Photo-Isomerization of Azobenzene Based Polymer Probed Using Magneto Optical Method. Top Catal 2022. [DOI: 10.1007/s11244-022-01594-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Influence of Magnetic Fields Assisted for Preparation of Ferromagnetic Mono- and Bi-Metallic Co and Co–V SHS Catalysts on Their Activity in Deep Oxidation and Hydrogenation of CO2. METALS 2022. [DOI: 10.3390/met12010166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Co–Al and Co–V–Al intermetallics produced by centrifugal self-propagating high-temperature synthesis (SHS) were used as precursors for preparation of catalysts for deep oxidation and hydrogenation of CO2. Leaching in NaOH solution and stabilization with H2O2 solution of precursors were carried out in permanent magnetic field (MF) (0.24 Т) and alternating magnetic field (0.13 Т, 50 Hz). Prepared Co и Co–V (95Co–5V, 90Co–10V) granular catalysts with size of 100–300 µm were characterized by XRD, SEM, EDS, and BET method and revealed to have a scaly surface structure. It was shown that the type of MF affects phase composition and surface morphology, as well as specific surface and activity in deep oxidation of CO and hydrocarbons as an important part of the neutralization of gas emissions, and hydrogenation of CO2, the processing of which would reduce atmospheric pollution with this greenhouse gas. Catalysts obtained in alternating MF was found to possess higher activity in the process of deep oxidation.
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8
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Serov A, Kovnir K, Shatruk M, Kolen’ko YV. Critical Review of Platinum Group Metal-Free Materials for Water Electrolysis: Transition from the Laboratory to the Market : Earth-abundant borides and phosphides as catalysts for sustainable hydrogen production. JOHNSON MATTHEY TECHNOLOGY REVIEW 2021. [DOI: 10.1595/205651321x16067419458185] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To combat the global problem of carbon dioxide emissions, hydrogen is the desired energy vector for the transition to environmentally benign fuel cell power. Water electrolysis (WE) is the major technology for sustainable hydrogen production. Despite the use of renewable solar and wind
power as sources of electricity, one of the main barriers for the widespread implementation of WE is the scarcity and high cost of platinum group metals (pgms) that are used to catalyse the cathodic hydrogen evolution reaction (HER) and the anodic oxygen evolution reaction (OER). Hence, the
critical pgm-based catalysts must be replaced with more sustainable alternatives for WE technologies to become commercially viable. This critical review describes the state-of-the-art pgm-free materials used in the WE application, with a major focus on phosphides and borides. Several emerging
classes of HER and OER catalysts are reviewed and detailed structure‐property correlations are comprehensively summarised. The influence of the crystallographic and electronic structures, morphology and bulk and surface chemistry of the catalysts on the activity towards OER and HER
is discussed.
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Affiliation(s)
- Alexey Serov
- Pajarito Powder LLC, Albuquerque, New Mexico 87109 USA
| | - Kirill Kovnir
- Department of Chemistry, Iowa State University Ames, Iowa 50011 USA
| | - Michael Shatruk
- Department of Chemistry and Biochemistry, Florida State University Tallahassee, Florida 32306 USA
| | - Yury V. Kolen’ko
- International Iberian Nanotechnology Laboratory Braga 4715-330 Portugal
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9
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Wang Q, Cai C, Dai M, Fu J, Zhang X, Li H, Zhang H, Chen K, Lin Y, Li H, Hu J, Miyauchi M, Liu M. Recent Advances in Strategies for Improving the Performance of CO
2
Reduction Reaction on Single Atom Catalysts. SMALL SCIENCE 2020. [DOI: 10.1002/smsc.202000028] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Qiyou Wang
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Chao Cai
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Minyang Dai
- College of Materials Science and Engineering Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Changsha 410082 Hunan P. R. China
| | - Junwei Fu
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Xiaodong Zhang
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Huangjingwei Li
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Hang Zhang
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Kejun Chen
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Yiyang Lin
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Hongmei Li
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
| | - Junhua Hu
- School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 Hunan P. R. China
| | - Masahiro Miyauchi
- Department of Materials Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology Tokyo 152‐8503 Japan
| | - Min Liu
- Shenzhen Research Institute School of Physics and Electronics Central South University Changsha 410083 Hunan P. R. China
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10
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Biz C, Fianchini M, Polo V, Gracia J. Magnetism and Heterogeneous Catalysis: In Depth on the Quantum Spin-Exchange Interactions in Pt 3M (M = V, Cr, Mn, Fe, Co, Ni, and Y)(111) Alloys. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50484-50494. [PMID: 33124822 DOI: 10.1021/acsami.0c15353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Bimetallic Pt-based alloys have drawn considerable attention in the last decades as catalysts in proton-exchange membrane fuel cells (PEMFCs) because they closely fulfill the two major requirements of high performance and good stability under operating conditions. Pt3Fe, Pt3Co, and Pt3Ni stand out as major candidates, given their good activity toward the challenging oxygen reduction reaction (ORR). The common feature across catalysts based on 3d-transition metals and their alloys is magnetism. Ferromagnetic spin-electron interactions, quantum spin-exchange interactions (QSEIs), are one of the most important energetic contributions in allowing milder chemisorption of reactants onto magnetic catalysts, in addition to spin-selective electron transport. The understanding of the role played by QSEIs in the properties of magnetic 3d-metal-based alloys is important to design and develop novel and effective electrocatalysts based on abundant and cheap metals. We present a detailed theoretical study (via density functional theory) on the most experimentally explored bimetallic alloys Pt3M (M = V, Cr, Mn, Fe, Co, Ni, and Y)(111). The investigation starts with a thorough structural study on the composition of the layers, followed by a comprehensive physicochemical description of their resistance toward segregation and their chemisorption capabilities toward hydrogen and oxygen atoms. Our study demonstrates that Pt3Fe(111), Pt3Co(111), and Pt3Ni(111) possess the same preferential multilayered structural organization, known for exhibiting specific magnetic properties. The specific role of QSEIs in their catalytic behavior is justified via comparison between spin-polarized and non-spin-polarized calculations.
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Affiliation(s)
- Chiara Biz
- Universitat Jaume I, Av. Vicente Sos Baynat s/n, E-12071 Castellón de la Plana, Spain
| | - Mauro Fianchini
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Technology, Avgda Països Catalans 16, 43007 Tarragona, Spain
| | - Victor Polo
- Departamento de Química Física and Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Jose Gracia
- MagnetoCat SL, General Polavieja 9 3I, 03012 Alicante, Spain
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