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Beck RA, Huang Y, Petrone A, Abbott JW, Pauzauskie PJ, Li X. Electronic Structures and Spectroscopic Signatures of Noble-Gas-Doped Nanodiamonds. ACS PHYSICAL CHEMISTRY AU 2023; 3:299-310. [PMID: 37249932 PMCID: PMC10214509 DOI: 10.1021/acsphyschemau.2c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 05/31/2023]
Abstract
Fluorescent nanodiamonds, that is, those containing optically active defects, have attracted interest for their ability to be used as qubits; for in vivo imaging; and as sensors for spin, stress, and temperature. One of the most commonly studied nanodiamond color centers is the nitrogen vacancy. However, there is strong interest in discovering other impurity centers that provide localized midband gap transitions. Noble gas atoms have garnered attention since they have been discovered within nanodiamonds produced through high-pressure-high-temperature laser-heated diamond anvil cell synthesis methods, where they are commonly used as hydrostatic pressure media. Noble gas atoms that exist in macrosized natural or synthetic diamonds have been shown to be able to form color centers. This research uses ab initio density functional theory and cluster models to systematically study the localized electronic structure for group VIII impurities of nanodiamond, including helium, neon, argon, krypton, and xenon. An in-depth examination of the interaction between the noble gas atom and diamond lattice has been carried out. The changes to the vibrational and UV/vis absorption spectra have been analyzed. It was determined that the energetically preferred geometry is dependent on the atom size. Most noble gas defects are stabilized within the nanodiamond lattice and exist in tetrahedral interstitial positions, except for the largest noble gas studied in this work, Xe, which was determined to prefer a substitutional configuration. Both Kr and Xe are expected to be able to manifest visible/near-IR optical responses when included in the diamond lattice.
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Affiliation(s)
- Ryan A. Beck
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Yue Huang
- Department
of Materials Science and Engineering, University
of Washington, Seattle, Washington 98195, United States
| | - Alessio Petrone
- Dipartimento
di Scienze Chimiche Angelo, via Cintia, I-80126 Napoli, Italy
| | - Joseph W. Abbott
- Laboratory
of Computational Science and Modeling, Institute of Materials, École Polytechnique Fédérale
de Lausanne,1015 Lausanne, Switzerland
| | - Peter J. Pauzauskie
- Department
of Materials Science and Engineering, University
of Washington, Seattle, Washington 98195, United States
| | - Xiaosong Li
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
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Pedrielli A, Dapor M, Gkagkas K, Taioli S, Pugno NM. Mechanical Properties of Twisted Carbon Nanotube Bundles with Carbon Linkers from Molecular Dynamics Simulations. Int J Mol Sci 2023; 24:ijms24032473. [PMID: 36768799 PMCID: PMC9917038 DOI: 10.3390/ijms24032473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
The manufacturing of high-modulus, high-strength fibers is of paramount importance for real-world, high-end applications. In this respect, carbon nanotubes represent the ideal candidates for realizing such fibers. However, their remarkable mechanical performance is difficult to bring up to the macroscale, due to the low load transfer within the fiber. A strategy to increase such load transfer is the introduction of chemical linkers connecting the units, which can be obtained, for example, using carbon ion-beam irradiation. In this work, we investigate, via molecular dynamics simulations, the mechanical properties of twisted nanotube bundles in which the linkers are composed of interstitial single carbon atoms. We find a significant interplay between the twist and the percentage of linkers. Finally, we evaluate the suitability of two different force fields for the description of these systems: the dihedral-angle-corrected registry-dependent potential, which we couple for non-bonded interaction with either the AIREBO potential or the screened potential ReboScr2. We show that both of these potentials show some shortcomings in the investigation of the mechanical properties of bundles with carbon linkers.
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Affiliation(s)
- Andrea Pedrielli
- Fondazione Bruno Kessler, Via Sommarive 18, Povo, 38123 Trento, Italy
| | - Maurizio Dapor
- European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Fondazione Bruno Kessler, Strada delle Tabarelle 286, Villazzano, 38123 Trento, Italy
- Trento Institute for Fundamental Physics and Applications (TIFPA-INFN), Via Sommarive 14, Povo, 38123 Trento, Italy
| | - Konstantinos Gkagkas
- Advanced Material Research Division, Toyota Motor Europe NV/SA, Hoge Wei 33B, 1930 Zaventem, Belgium
| | - Simone Taioli
- European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Fondazione Bruno Kessler, Strada delle Tabarelle 286, Villazzano, 38123 Trento, Italy
- Trento Institute for Fundamental Physics and Applications (TIFPA-INFN), Via Sommarive 14, Povo, 38123 Trento, Italy
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233 Gdańsk, Poland
| | - Nicola Maria Pugno
- Laboratory for Bioinspired, Bionic, Nano, Meta Materials & Mechanics, Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
- Correspondence:
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Shiryaev AA, Trigub AL, Voronina EN, Kvashnina KO, Bukhovets VL. Behavior of implanted Xe, Kr and Ar in nanodiamonds and thin graphene stacks: experiment and modeling. Phys Chem Chem Phys 2021; 23:21729-21737. [PMID: 34550143 DOI: 10.1039/d1cp02600c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Implantation and subsequent behaviour of heavy noble gases (Ar, Kr, and Xe) in few-layer graphene sheets and in nanodiamonds are studied both using computational methods and experimentally using X-ray absorption spectroscopy. X-ray absorption spectroscopy provides substantial support for Xe-vacancy (Xe-V) defects as main sites for Xe in nanodiamonds. It is shown that noble gases in thin graphene stacks distort the layers, forming bulges. The energy of an ion placed in between flat graphene sheets is notably lower than that in domains with high curvature. However, if the ion is trapped in the curved domain, considerable additional energy is required to displace it. This phenomenon is likely responsible for strong binding of noble gases implanted into disordered carbonaceous phase in meteorites (the Q-component).
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Affiliation(s)
- Andrey A Shiryaev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, Leninsky pr. 31 korp. 4, 119071, Moscow, Russia.
| | - Alexander L Trigub
- National Research Center «Kurchatov Institute», Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | | | - Kristina O Kvashnina
- The Rossendorf Beamline at ESRF - The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, France.,Helmholtz Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, PO Box 510119, 01314 Dresden, Germany.,Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Valentin L Bukhovets
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, Leninsky pr. 31 korp. 4, 119071, Moscow, Russia.
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Plutonium-Doped Monazite and Other Orthophosphates—Thermodynamics and Experimental Data on Long-Term Behavior. SUSTAINABILITY 2021. [DOI: 10.3390/su13031203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The paper consists of two main parts: a microscopic and spectroscopic investigation of the single crystal of 17-year-old 238Pu-doped Eu-monazite, and a theoretical calculation of the properties of several structural types of orthophosphates. It is shown that actinide-doped monazite is prone to the formation of mechanically weak, poorly crystalline crust, presumably consisting of rhabdophane. Its formation is likely promoted by the formation of peroxides and, potentially, acidic compounds, due to the radiolysis of atmospheric moisture. The calculations of mixing the enthalpies and Gibbs energies of binary solid solutions of Pu and rare earth element (REE) phosphates that were performed for the principal structural types—monazite, xenotime, rhabdophane—show that, in the case of light REEs, the plutonium admixture is preferentially redistributed into the rhabdophane. This process strongly affects the behavior of actinides, leached from a monazite-based waste form. The applications of these results for the development of actinide waste forms are discussed. The current data on the behavior of real actinide-doped monazite suggest that this type of ceramic waste form is not very resistant, even in relatively short time periods.
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Nanocomposites for Enhanced Osseointegration of Dental and Orthopedic Implants Revisited: Surface Functionalization by Carbon Nanomaterial Coatings. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5010023] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Over the past few decades, carbon nanomaterials, including carbon nanofibers, nanocrystalline diamonds, fullerenes, carbon nanotubes, carbon nanodots, and graphene and its derivatives, have gained the attention of bioengineers and medical researchers as they possess extraordinary physicochemical, mechanical, thermal, and electrical properties. Recently, surface functionalization with carbon nanomaterials in dental and orthopedic implants has emerged as a novel strategy for reinforcement and as a bioactive cue due to their potential for osseointegration. Numerous developments in fabrication and biological studies of carbon nanostructures have provided various novel opportunities to expand their application to hard tissue regeneration and restoration. In this minireview, the recent research trends in surface functionalization of orthopedic and dental implants with coating carbon nanomaterials are summarized. In addition, some seminal methodologies for physicomechanical and electrochemical coatings are discussed. In conclusion, it is shown that further development of surface functionalization with carbon nanomaterials may provide innovative results with clinical potential for improved osseointegration after implantation.
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Shiryaev AA, Polyakov VB, Rols S, Rivera A, Shenderova O. Inelastic neutron scattering: a novel approach towards determination of equilibrium isotopic fractionation factors. Size effects on heat capacity and beta-factor of diamond. Phys Chem Chem Phys 2020; 22:13261-13270. [PMID: 32500891 DOI: 10.1039/d0cp02032j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new experimental method for the determination of equilibrium isotopic properties of substances based on inelastic neutron scattering (INS) is proposed. We present a mathematical formalism, which allows the calculation of the beta-factor of single-element solids based on INS-derived Phonon Density of States (PDOS). PDOS data for nanodiamonds of widely different sizes and of macroscopic diamond were determined from inelastic neutron scattering experiments. This allowed the determination of heat capacities and, for the first time, β-factors of the diamond nanoparticles. We demonstrate a considerable size-dependent increase of the heat capacities and decrease of the beta-factors for nanodiamonds relative to bulk diamond. Contributions of surface impurities/phases and phonon confinement to the size effects are evaluated. Applications in the formation of diamond nanoparticles in nature are briefly discussed.
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Affiliation(s)
- Andrey A Shiryaev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, Leninsky pr. 31 korp. 4, 119071, Moscow, Russia.
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Shiryaev AA, Burakov BE, Nickolsky MS, Yapaskurt VO, Pavlushin AD, Grigoriev MS, Vlasova IE. Surface features on aged 238Pu-doped Eu-monazite. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Several 238Pu-doped Eu monazite single crystals stored at ambient conditions are monitored for 15 years using Scanning and Transmission electron microscopy, spectroscopy, diffraction and optical microscopy. Despite preservation of high crystalline quality, mechanical cracking and formation of small flakes is observed. After several month of aging, a new phase appeared on surfaces of the crystals, which later formed a continuous shell of most crystallographic faces. Electron diffraction indicated that the shell consists of submicron Pu-containing rhabdophanes. Its formation likely occurs due to combined action of atmospheric moisture and recrystallisation of radiation damage in monazite domains adjacent to external and internal surfaces. Extent of the rhabdophane formation appears to be influenced by crystallography and Pu content of corresponding growth sectors of the parent monazite. Whereas macroscopic rhabdophanes and monazites are relatively stable against irradiation, formation of sub-microscopic particles is a point of concern for development of monazite-based ceramic forms for actinide immobilization.
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Affiliation(s)
- Andrey A. Shiryaev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS , Leninsky pr. 31 korp. 4 , Moscow , 119071 , Russia
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry RAS , Staromonetny per, 35 , Moscow , 119017 , Russia
- Department of Chemistry , Lomonosov Moscow State University , Leninskie gory, 1 bld.3 , Moscow , 119991 , Russia , E-mail:
| | - Boris E. Burakov
- V.G. Khlopin Radium Institute , 2-nd Murinskiy Ave. 28 , St. Petersburg , 194021 , Russia
| | - Maximillian S. Nickolsky
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS , Leninsky pr. 31 korp. 4 , Moscow , 119071 , Russia
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry RAS , Staromonetny per, 35 , Moscow , 119017 , Russia
| | - Vasily O. Yapaskurt
- Department of Geology , Lomonosov Moscow State University , Moscow , 119991 , Russia
| | - Anton D. Pavlushin
- Diamond and Precious Metal Geology Institute SB RAS , Pr. Lenina 39 , Yakutsk , 677891 , Russia
| | - Mikhail S. Grigoriev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS , Leninsky pr. 31 korp. 4 , Moscow , 119071 , Russia
| | - Irina E. Vlasova
- Department of Chemistry , Lomonosov Moscow State University , Leninskie gory, 1 bld.3 , Moscow , 119991 , Russia
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Zubekhina BY, Shiryaev AA, Burakov BE, Vlasova IE, Averin AA, Yapaskurt VO, Petrov VG. Chemical alteration of 238Pu-loaded borosilicate glass under saturated leaching conditions. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-3097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Highly radioactive 238Pu-doped and non-radioactive samples of borosilicate glass with chemical compositions and synthesis routine similar to SON68 glass were studied under static saturated leaching conditions in distilled water at 90 °C. Dramatic differences in behavior of the radioactive and model glasses were observed. On time scale of 4 months the radioactive glass is fully covered by mechanically unstable alteration layer, possibly consisting of aluminum hydroxides with small fraction of a separate secondary Pu bearing phase. The model glass remains virtually pristine. Addition of Eu3+ into the glass allowed examination of the glass radio- and photoluminescence and to assess changes or REE3+ impurity local environment during self-irradiation and leaching. Photoluminescence spectra suggest more ordered local environment of europium ions in the alteration “gel” than in the bulk glass. Peculiar behavior of the photoluminescence spectra excited at different laser power is observed for the alteration layer and is ascribed to optical bleaching of color centers.
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Affiliation(s)
| | - Andrei A. Shiryaev
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS , Moscow 119071 , Russia
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
| | | | - Irina E. Vlasova
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
| | - Alexey A. Averin
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS , Moscow 119071 , Russia
| | - Vasily O. Yapaskurt
- Department of Geology , Lomonosov Moscow State University , Moscow 119991 , Russia
| | - Vladimir G. Petrov
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory, 1 bld. 3 , Moscow 119991 , Russia
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Top-down fabrication of high-uniformity nanodiamonds by self-assembled block copolymer masks. Sci Rep 2019; 9:6914. [PMID: 31061512 PMCID: PMC6502864 DOI: 10.1038/s41598-019-43304-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 03/29/2019] [Indexed: 12/01/2022] Open
Abstract
Nanodiamonds hosting colour centres are a promising material platform for various quantum technologies. The fabrication of non-aggregated and uniformly-sized nanodiamonds with systematic integration of single quantum emitters has so far been lacking. Here, we present a top-down fabrication method to produce 30.0 ± 5.4 nm uniformly-sized single-crystal nanodiamonds by block copolymer self-assembled nanomask patterning together with directional and isotropic reactive ion etching. We show detected emission from bright single nitrogen vacancy centres hosted in the fabricated nanodiamonds. The lithographically precise patterning of large areas of diamond by self-assembled masks and their release into uniformly sized nanodiamonds open up new possibilities for quantum information processing and sensing.
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