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Castillo-Castro D, Correa F, Aparicio E, Amigo N, Prada A, Figueroa J, González RI, Bringa E, Valencia FJ. Nanoporous Amorphous Carbon with Exceptional Ultra-High Strength. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1429. [PMID: 37111014 PMCID: PMC10142945 DOI: 10.3390/nano13081429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Nanoporous materials show a promising combination of mechanical properties in terms of their relative density; while there are numerous studies based on metallic nanoporous materials, here we focus on amorphous carbon with a bicontinuous nanoporous structure as an alternative to control the mechanical properties for the function of filament composition.Using atomistic simulations, we study the mechanical response of nanoporous amorphous carbon with 50% porosity, with sp3 content ranging from 10% to 50%. Our results show an unusually high strength between 10 and 20 GPa as a function of the %sp3 content. We present an analytical analysis derived from the Gibson-Ashby model for porous solids, and from the He and Thorpe theory for covalent solids to describe Young's modulus and yield strength scaling laws extremely well, revealing also that the high strength is mainly due to the presence of sp3 bonding. Alternatively, we also find two distinct fracture modes: for low %sp3 samples, we observe a ductile-type behavior, while high %sp3 leads to brittle-type behavior due to high high shear strain clusters driving the carbon bond breaking that finally promotes the filament fracture. All in all, nanoporous amorphous carbon with bicontinuous structure is presented as a lightweight material with a tunable elasto-plastic response in terms of porosity and sp3 bonding, resulting in a material with a broad range of possible combinations of mechanical properties.
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Affiliation(s)
- Daniel Castillo-Castro
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 7500994, Chile
| | - Felipe Correa
- Escuela de Ingeniería en Computación e Informatica, Facultad de Ciencias, Universidad Mayor, Santiago 7500994, Chile
| | | | - Nicolás Amigo
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago 8420524, Chile
| | - Alejandro Prada
- Departamento de Computación e Industrias, Facultad de Ciencias de la Ingeniería, Universidad Católica del Maule, Talca 3480112, Chile
| | - Juan Figueroa
- Departamento de Computación e Industrias, Facultad de Ciencias de la Ingeniería, Universidad Católica del Maule, Talca 3480112, Chile
| | - Rafael I González
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 7500994, Chile
- Centro Para el Desarrollo de la Nanociencia y Nanotectonolgía, CEDENNA, Estación Centtral 917022, Chile
| | - Eduardo Bringa
- CONICET and Universidad de Mendoza, Mendoza 5500, Argentina
| | - Felipe J Valencia
- Departamento de Computación e Industrias, Facultad de Ciencias de la Ingeniería, Universidad Católica del Maule, Talca 3480112, Chile
- Centro Para el Desarrollo de la Nanociencia y Nanotectonolgía, CEDENNA, Estación Centtral 917022, Chile
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Long NT, Tuan TQ, Thuy DNA, Ho QD, Huy HA. Molecular dynamics study of the finite-size effect in 2D nanoribbon silicene. MOLECULAR SIMULATION 2023. [DOI: 10.1080/08927022.2023.2184182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Affiliation(s)
- Nguyen Truong Long
- Department of Physics, School of Education, Can Tho University, Can Tho, Viet Nam
| | - Truong Quoc Tuan
- Department of Physics, College of Natural Science, Can Tho University, Can Tho, Viet Nam
| | - Do Ngoc Anh Thuy
- Department of Physics, College of Natural Science, Can Tho University, Can Tho, Viet Nam
| | - Quoc Duy Ho
- High-Performance Computing Lab (HPC Lab), Information Technology Center, Thu Dau Mot University, Binh Duong, Viet Nam
| | - Huynh Anh Huy
- Department of Physics, School of Education, Can Tho University, Can Tho, Viet Nam
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3
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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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4
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Flores E, Mella JD, Aparicio E, Gonzalez RI, Parra C, Bringa EM, Munoz F. Inducing a topological transition in graphene nanoribbon superlattices by external strain. Phys Chem Chem Phys 2022; 24:7134-7143. [PMID: 35262146 DOI: 10.1039/d2cp00038e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Armchair graphene nanoribbons, when forming a superlattice, can be classified into different topological phases, with or without edge states. By means of tight-binding and classical molecular dynamics (MD) simulations, we studied the electronic and mechanical properties of some of these superlattices. MD shows that fracture in modulated superlattices is brittle, as for unmodulated ribbons, and occurs at the thinner regions, with staggered superlattices achieving a larger fracture strain than inline superlattices. We found a general mechanism to induce a topological transition with strain, related to the electronic properties of each segment of the superlattice, and by studying the sublattice polarization we were able to characterize the transition and the response of these states to the strain. For the cases studied in detail here, the topological transition occurred at ∼3-5% strain, well below the fracture strain. The topological states of the superlattice - if present - are robust to strain even close to fracture. The topological transition was characterized by means of the sublattice polarization of the states.
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Affiliation(s)
- E Flores
- Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
| | - José D Mella
- Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
| | - E Aparicio
- CONICET and Universidad de Mendoza, Mendoza, 5500, Argentina
| | - R I Gonzalez
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago, Chile. .,Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Santiago, Chile
| | - C Parra
- Laboratorio de Nanobiomateriales, Departamento de Física, Universidad Técnica Federico Santa María, Valparaiso, Chile.
| | - E M Bringa
- CONICET and Universidad de Mendoza, Mendoza, 5500, Argentina.,Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.
| | - F Munoz
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Santiago, Chile.,Departamento de Física, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Luo S, Chen X, He Y, Gu Y, Zhu C, Yang GH, Qu LL. Recent advances in graphene nanoribbons for biosensing and biomedicine. J Mater Chem B 2021; 9:6129-6143. [PMID: 34291262 DOI: 10.1039/d1tb00871d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In recent years, a new type of quasi-one-dimensional graphene-based material, graphene nanoribbons (GNRs), has attracted increasing attention. The limited domain width and rich edge configurations of GNRs endow them with unique properties and wide applications in comparison to two-dimensional graphene. This review article mainly focuses on the electrical, chemical and other properties of GNRs, and further introduces the typical preparation methods of GNRs, including top-down and bottom-up strategies. Then, their biosensing and biomedical applications are highlighted in detail, such as biosensors, photothermal therapy, drug delivery, etc. Finally, the challenges and future prospects in the synthesis and application of functionalized GNRs are discussed. It is expected that GNRs will have significant practical use in biomedical applications in the future.
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Affiliation(s)
- Siyu Luo
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China.
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