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Hamad MS, Morciano M, Fasano M. Rocket Dynamics of Capped Nanotubes: A Molecular Dynamics Study. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1134. [PMID: 38998739 PMCID: PMC11243346 DOI: 10.3390/nano14131134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/14/2024]
Abstract
The study of nanoparticle motion has fundamental relevance in a wide range of nanotechnology-based fields. Molecular dynamics simulations offer a powerful tool to elucidate the dynamics of complex systems and derive theoretical models that facilitate the invention and optimization of novel devices. This research contributes to this ongoing effort by investigating the motion of one-end capped carbon nanotubes within an aqueous environment through extensive molecular dynamics simulations. By exposing the carbon nanotubes to localized heating, propelled motion with velocities reaching up to ≈0.08 nm ps-1 was observed. Through systematic exploration of various parameters such as temperature, nanotube diameter, and size, we were able to elucidate the underlying mechanisms driving propulsion. Our findings demonstrate that the propulsive motion predominantly arises from a rocket-like mechanism facilitated by the progressive evaporation of water molecules entrapped within the carbon nanotube. Therefore, this study focuses on the complex interplay between nanoscale geometry, environmental conditions, and propulsion mechanisms in capped nanotubes, providing relevant insights into the design and optimization of nanoscale propulsion systems with various applications in nanotechnology and beyond.
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Affiliation(s)
- Mustafa S Hamad
- Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Matteo Morciano
- Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Matteo Fasano
- Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
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2
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Levshakova A, Kaneva M, Borisov E, Panov M, Shmalko A, Nedelko N, Mereshchenko AS, Skripkin M, Manshina A, Khairullina E. Simultaneous Catechol and Hydroquinone Detection with Laser Fabricated MOF-Derived Cu-CuO@C Composite Electrochemical Sensor. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7225. [PMID: 38005154 PMCID: PMC10673110 DOI: 10.3390/ma16227225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
The conversion of metal-organic frameworks (MOFs) into advanced functional materials offers a promising route for producing unique nanomaterials. MOF-derived systems have the potential to overcome the drawbacks of MOFs, such as low electrical conductivity and poor structural stability, which have hindered their real-world applications in certain cases. In this study, laser scribing was used for pyrolysis of a Cu-based MOF ([Cu4{1,4-C6H4(COO)2}3(4,4'-bipy)2]n) to synthesize a Cu-CuO@C composite on the surface of a screen-printed electrode (SPE). Scanning electron microscopy, X-ray diffractometry, and Energy-dispersive X-ray spectroscopy were used for the investigation of the morphology and composition of the fabricated electrodes. The electrochemical properties of Cu-CuO@C/SPE were studied by cyclic voltammetry and differential pulse voltammetry. The proposed flexible electrochemical Cu-CuO@C/SPE sensor for the simultaneous detection of hydroquinone and catechol exhibited good sensitivity, broad linear range (1-500 μM), and low limits of detection (0.39 μM for HQ and 0.056 μM for CT).
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Affiliation(s)
- Aleksandra Levshakova
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Maria Kaneva
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
- Ioffe Institute, St. Petersburg 194021, Russia
| | - Evgenii Borisov
- Center for Optical and Laser Materials Research, St. Petersburg University, St. Petersburg 199034, Russia;
| | - Maxim Panov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
- Faculty of Pharmaceutical Technology, St. Petersburg State Chemical Pharmaceutical University, Professor Popov Str., 14, Lit. A, St. Petersburg 197022, Russia
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, St. Petersburg 194021, Russia;
| | - Alexandr Shmalko
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, St. Petersburg 194021, Russia;
| | - Nikolai Nedelko
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Andrey S. Mereshchenko
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Mikhail Skripkin
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Alina Manshina
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Evgeniia Khairullina
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russia
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3
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Jo E, Kang Y, Sim S, Lee H, Kim J. High-Temperature-Operable Electromechanical Computing Units Enabled by Aligned Carbon Nanotube Arrays. ACS NANO 2023. [PMID: 37418328 DOI: 10.1021/acsnano.3c01304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
Nano/micro-electromechanical (NEM/MEM) contact switches have great potential as energy-efficient and high-temperature-operable computing units to surmount those limitations of transistors. However, despite recent advances, the high-temperature operation of the mechanical switch is not fully stable nor repetitive due to the melting and softening of the contact material in the mechanical switch. Herein, MEM switches with carbon nanotube (CNT) arrays capable of operating at high temperatures are presented. In addition to the excellent thermal stability of CNT arrays, the absence of a melting point of CNTs allows the proposed switches to operate successfully at up to 550 °C, surpassing the maximum operating temperatures of state-of-the-art mechanical switches. The switches with CNTs also show a highly reliable contact lifetime of over 1 million cycles, even at a high temperature of 550 °C. Moreover, symmetrical pairs of normally open and normally closed MEM switches, whose interfaces are initially in contact and separated, respectively, are introduced. Consequently, the complementary inverters and logic gates operating at high temperatures can be easily configured such as NOT, NOR, and NAND gates. These switches and logic gates reveal the possibility for developing low-power, high-performance integrated circuits for high-temperature operations.
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Affiliation(s)
- Eunhwan Jo
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Yunsung Kang
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sangjun Sim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hojoon Lee
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jongbaeg Kim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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4
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Zhang H, Huang Z, Ding M, Wang Q, Feng Y, Li Z, Wang S, Yang L, Chen S, Shang W, Zhang J, Deng T, Xu H, Cui K. A photon-recycling incandescent lighting device. SCIENCE ADVANCES 2023; 9:eadf3737. [PMID: 37043569 PMCID: PMC10096566 DOI: 10.1126/sciadv.adf3737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/10/2023] [Indexed: 06/19/2023]
Abstract
Energy-efficient, healthy lighting is vital for human beings. Incandescent lighting provides high-fidelity color rendering and ergonomic visual comfort yet is phased out owing to low luminous efficacy (15 lumens per watt) and poor lifetime (2000 hours). Here, we propose and experimentally realize a photon-recycling incandescent lighting device (PRILD) with a luminous efficacy of 173.6 lumens per watt (efficiency of 25.4%) at a power density of 277 watts per square centimeter, a color rendering index (CRI) of 96, and a LT70-rated lifetime of >60,000 hours. The PRILD uses a machine learning-designed 637-nm-thick visible-transparent infrared-reflective filter and a Janus carbon nanotube/hexagonal boron nitride filament to recycle 92% of the infrared radiation. The PRILD has higher luminous efficacy, CRI, and lifetime compared with solid-state lighting and thus is promising for high-power density lighting.
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Affiliation(s)
- Heng Zhang
- School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhequn Huang
- Zhiyuan Innovative Research Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Min Ding
- Shanghai HeiYi Materials Technology Co. Ltd., Shanghai 200240, China
| | - Qixiang Wang
- School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yilin Feng
- School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhenghong Li
- Shanghai IdeaOptics Co. Ltd., Shanghai 200433, China
| | - Shan Wang
- Shanghai IdeaOptics Co. Ltd., Shanghai 200433, China
| | - Lei Yang
- Tianjin H-Chip Technology Group Corporation, Tianjin 300467, China
| | - Shuai Chen
- Tianjin H-Chip Technology Group Corporation, Tianjin 300467, China
| | - Wen Shang
- School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jian Zhang
- Research Center for Transparent Ceramics, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Tao Deng
- School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hongxing Xu
- Institute of Advanced Studies, School of Physics and Technology, Wuhan University, Hubei 430072, China
| | - Kehang Cui
- School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China
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Application of nanomaterials for enhanced production of biodiesel, biooil, biogas, bioethanol, and biohydrogen via lignocellulosic biomass transformation. FUEL 2022. [DOI: 10.1016/j.fuel.2021.122840] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Allen CS, Ghamouss F, Boujibar O, Harris PJF. Aberration-corrected transmission electron microscopy of a non-graphitizing carbon. Proc Math Phys Eng Sci 2022. [DOI: 10.1098/rspa.2021.0580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Non-graphitizing carbons (NGCs) are an important class of solid carbons which cannot be converted into graphite by high-temperature heat treatment. They include commercially valuable materials such as activated carbon and glassy carbon. These carbons have been intensively studied for decades, but there is still no agreement about their detailed atomic structure, or the reasons for their resistance to graphitization. The first models for graphitizing and NGCs were proposed by Rosalind Franklin in the early 1950s, and while these are broadly correct, they are incomplete. Many alternative models of NGCs have been put forward since Franklin's time, but none has received universal acceptance. Diffraction and spectroscopic techniques can provide important insights into the nature of these carbons, but only direct microscopic imaging can reveal their true atomic structure. Here, we apply aberration-corrected transmission electron microscopy to an activated carbon prepared from waste biomass and present evidence for the presence of pentagonal and heptagonal carbon rings. This provides support for a model of the structure of NGC made up of curved fragments in which non-hexagonal rings are dispersed randomly throughout hexagonal networks.
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Affiliation(s)
- Christopher S. Allen
- Electron Physical Science Imaging Centre, Diamond Light Source Ltd., OX11 0DE, UK
- Department of Materials, University of Oxford, OX1 3PH, UK
| | - Fouad Ghamouss
- PCM2E, EA 6299 Université de Tours, Parc de Grandmont, 37200 Tours, France
- Materials Science and Nano-Engineering Department, Mohammed VI Polytechnic University, Hay Moulay Rachid, 43150 Ben Guerir, Morocco
| | - Ouassim Boujibar
- PCM2E, EA 6299 Université de Tours, Parc de Grandmont, 37200 Tours, France
| | - Peter J. F. Harris
- Electron Microscopy Laboratory, University of Reading, JJ Thomson Building, Whiteknights, Reading RG6 6AF, UK
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7
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Wang C, Barba D, Zhao H, Tong X, Wang Z, Rosei F. Epitaxial growth and defect repair of heterostructured CuInSe xS 2-x/CdSeS/CdS quantum dots. NANOSCALE 2019; 11:19529-19535. [PMID: 31573586 DOI: 10.1039/c9nr06110j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Heterostructured quantum dots (hetero-QDs) have outstanding optical properties and chemical/photostability, which make them promising building blocks for use in various optoelectronic devices. Here, CuInSexS2-x/CdSeS/CdS hetero-QDs were synthesized through a facile two-step method. Their particle size, three-dimensional (3D) shapes and the epitaxial relationship between the CuInSexS2-x/CdSeS core and CdS shell were investigated by high-resolution transmission electron microscopy (HRTEM). Our investigation proves that the as-synthesized hetero-QDs have a regular tetrahedron 3D shape with four {111} crystal facets. The epitaxial relationship between the CuInSexS2-x/CdSeS core and CdS shell is determined to be [110]core//[110]shell, {112}core//{111}shell. In situ HRTEM observations show that the screw dislocation inside the hetero-QDs can be efficiently repaired using e-beam irradiation. These results may help in designing hetero-QDs with high-quality interfaces and identifying the strategies for synthesizing defect-free hetero-QDs.
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Affiliation(s)
- Chao Wang
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec J3X 1S2, Canada.
| | - David Barba
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec J3X 1S2, Canada.
| | - Haiguang Zhao
- State Key Laboratory of Bo-Fibers and Eco-Textiles and College of Physics, Qingdao University, Qingdao, PR China
| | - Xin Tong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, PR China
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, PR China
| | - Federico Rosei
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec J3X 1S2, Canada.
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8
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Flame Spraying of Aluminum Coatings Reinforced with Particles of Carbonaceous Materials as an Alternative for Laser Cladding Technologies. MATERIALS 2019; 12:ma12213467. [PMID: 31652697 PMCID: PMC6861937 DOI: 10.3390/ma12213467] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/10/2019] [Accepted: 10/20/2019] [Indexed: 11/17/2022]
Abstract
The article presents results of the preliminary research of mechanical properties of flame-sprayed aluminum coatings reinforced with carbon materials made on the construction steel S235J0 substrate. For reinforcement the following carbon materials were used: carbon nanotubes Nanocyl NC 7000 (0.5 wt.% and 1 wt.%) and carburite (0.5 wt.%). The properties evaluation was made using metallographic macroscope and microscope, chemical composition, microhardness, abrasion and erosion resistance studies. The obtained results were compared with aluminum powder coatings (EN AW 1000 series). It was proved that the flame spraying of aluminum coatings reinforced with particles of carbonaceous materials can be an effective alternative for laser cladding technology. The preliminary test results will be successively extended by further experiments to contribute in the near future to develop innovative technologies, that can be implemented in the automotive industry for production of components with high strength, wear resistance, good thermal conductivity and low density, such as brake shoes, cylinder liners, piston rings and gears.
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9
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Reliability Investigation of a Carbon Nanotube Array Thermal Interface Material. ENERGIES 2019. [DOI: 10.3390/en12112080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
As feature density increases within microelectronics, so does the dissipated power density, which puts an increased demand on thermal management. Thermal interface materials (TIMs) are used at the interface between contacting surfaces to reduce the thermal resistance, and is a critical component within many electronics systems. Arrays of carbon nanotubes (CNTs) have gained significant interest for application as TIMs, due to the high thermal conductivity, no internal thermal contact resistances and an excellent conformability. While studies show excellent thermal performance, there has to date been no investigation into the reliability of CNT array TIMs. In this study, CNT array TIMs bonded with polymer to close a Si-Cu interface were subjected to thermal cycling. Thermal interface resistance measurements showed a large degradation of the thermal performance of the interface within the first 100 cycles. More detailed thermal investigation of the interface components showed that the connection between CNTs and catalyst substrate degrades during thermal cycling even in the absence of thermal expansion mismatch, and the nature of this degradation was further analyzed using X-ray photoelectron spectroscopy. This study indicates that the reliability will be an important consideration for further development and commercialization of CNT array TIMs.
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10
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Munir KS, Wen C, Li Y. Carbon Nanotubes and Graphene as Nanoreinforcements in Metallic Biomaterials: a Review. ACTA ACUST UNITED AC 2019; 3:e1800212. [PMID: 32627403 DOI: 10.1002/adbi.201800212] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 01/22/2019] [Indexed: 12/13/2022]
Abstract
Current challenges in existing metallic biomaterials encourage undertaking research in the development of novel materials for biomedical applications. This paper critically reviews the potential of carbon nanotubes (CNT) and graphene as nanoreinforcements in metallic biomaterials for bone tissue engineering. Unique and remarkable mechanical, electrical, and biological properties of these carbon nanomaterials allow their use as secondary-phase reinforcements in monolithic biomaterials. The nanoscale dimensions and extraordinarily large surface areas of CNT and graphene make them suitable materials for purposeful reaction with living organisms. However, the cytocompatibility of CNT and graphene is still a controversial issue that impedes advances in utilizing these promising materials in clinical orthopedic applications. The interaction of CNT and graphene with biological systems including proteins, nucleic acids, and human cells is critically reviewed to assess their cytocompatibity in vitro and in vivo. It is revealed that composites reinforced with CNT and graphene show enhanced adhesion of osteoblast cells, which subsequently promotes bone tissue formation in vivo. This potential is expected to pave the way for developing ground-breaking technologies in regenerative medicine and bone tissue engineering. In addition, current progress and future research directions are highlighted for the development of CNT and graphene reinforced implants for bone tissue engineering.
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Affiliation(s)
- Khurram S Munir
- School of Engineering, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Cuie Wen
- School of Engineering, RMIT University, Bundoora, Victoria, 3083, Australia
| | - Yuncang Li
- School of Engineering, RMIT University, Bundoora, Victoria, 3083, Australia
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11
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Sandin C, Talukdar TK, Abelson JR, Tawfick S. Bottom-Up Synthesis and Mechanical Behavior of Refractory Coatings Made of Carbon Nanotube-Hafnium Diboride Composites. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1487-1495. [PMID: 30543416 DOI: 10.1021/acsami.8b18840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We use aligned carbon nanotube (CNT) forests as scaffolds to deposit hafnium diboride (HfB2) and fabricate millimeter-thick ultrahigh-temperature composite coating. HfB2 has a melting temperature of 3250 °C, which makes it an attractive candidate for applications requiring operation in extreme environments. Compared to typical refractory HfB2 processing, which requires temperatures exceeding 1500 °C, we use conformal HfB2 chemical vapor deposition (CVD) to coat CNT forests at a low temperature of 200 °C. During this process, nanometer-thin HfB2 films grow on the CNT surface and uniformly fill tall CNT forests, thus transforming nanometer film deposition to a scalable HfB2 coating technology. The conformal HfB2 coating process uses static (S-) CVD, where the precursor is fed into a closed system, enabling highly conformal coating and economically efficient utilization of the HfB2 precursor reaching 85%. The modulus and compressive strength of the composites are measured using flat-punch indentation of micropillars having various coating thickness. Filling the CNTs with HfB2 strengthens their node morphology and effectively enhances the mechanical properties. We study the nonlinear behavior of the material to extract a unique modulus value that describes the stress-strain response at any applied compression. At the highest HfB2 coating thickness of 45 nm, the solid fraction is increased from 2% for the bare CNTs to 36% for the composite; the modulus and strength reach 107 and 1.5 GPa, respectively. An analytical model is used to explain the mechanism of the measured structure-mechanical property scaling. Finally, the process is used to fabricate CNT-HfB2 films having 1.7 mm height, a centimeter square area, and only 5.8 × 10-6 nm/nm thickness gradient to demonstrate the potential for scalability.
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Affiliation(s)
- Carly Sandin
- Mechanical Science and Engineering , University of Illinois Urbana-Champaign , 1206 W. Green St. , Urbana , Illinois 61801 , United States
| | - Tushar K Talukdar
- Mechanical Science and Engineering , University of Illinois Urbana-Champaign , 1206 W. Green St. , Urbana , Illinois 61801 , United States
| | - John R Abelson
- Materials Science and Engineering , University of Illinois Urbana-Champaign , 1304 W. Green St. , Urbana , Illinois 61801 , United States
| | - Sameh Tawfick
- Mechanical Science and Engineering , University of Illinois Urbana-Champaign , 1206 W. Green St. , Urbana , Illinois 61801 , United States
- The Beckman Institute for Advanced Science and Technologies , University of Illinois Urbana-Champaign , 405 N. Matthews St. , Urbana , Illinois 61801 , United States
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12
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Zhang L, Wu W, Zhou Y, Ren H, Dong J, Li H. Electronic transport properties of ultra-thin Ni and Ni-C nanowires. Phys Chem Chem Phys 2016; 18:5336-43. [PMID: 26818090 DOI: 10.1039/c5cp07641b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The structures and electronic transport properties of ultra-thin Ni and Ni-C nanowires obtained from carbon nanotube (CNT) templates are theoretically investigated. C atoms tend to locate at the central positions of nanowires and are surrounded by Ni atoms. Spin polarization at the Fermi level is not responsible for the spin filtration of these nanowires. Increasing C concentration can improve the resistance of nanowires by abating the number of electronic transmission channels and the coupling of electron orbitals between Ni atoms. Moreover, with the increase of diameter, the conductance of these nanowires increases as well. This study is helpful for guiding the synthesis of nanowires with desired applications.
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Affiliation(s)
- Leining Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, People's Republic of China.
| | - Weikang Wu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, People's Republic of China.
| | - Yi Zhou
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, People's Republic of China.
| | - Hongru Ren
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, People's Republic of China.
| | - Jichen Dong
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China
| | - Hui Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, People's Republic of China.
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Belousova IM, Videnichev DA, Volynkin VM, Evstropiev SK, Kislyakov IM, Murav'ova TD, Rakov EG. Nonlinear optical limiters of pulsed laser radiation based on carbon-containing nanostructures in viscous and solid matrices. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3343] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- I. M. Belousova
- JSC Vavilov State Optical Institute; 199053, Kadetskaya line, 5-2 Saint-Petersburg Russia
| | - D. A. Videnichev
- JSC Vavilov State Optical Institute; 199053, Kadetskaya line, 5-2 Saint-Petersburg Russia
| | - V. M. Volynkin
- JSC Vavilov State Optical Institute; 199053, Kadetskaya line, 5-2 Saint-Petersburg Russia
| | - S. K. Evstropiev
- JSC Vavilov State Optical Institute; 199053, Kadetskaya line, 5-2 Saint-Petersburg Russia
| | - I. M. Kislyakov
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics; 197101, Kronverksky pr., 49 Saint-Petersburg Russia
| | - T. D. Murav'ova
- JSC Vavilov State Optical Institute; 199053, Kadetskaya line, 5-2 Saint-Petersburg Russia
| | - E. G. Rakov
- Mendeleyev University of Chemical Technology of Russia; 125047, Miusskaya sq., 9 Moscow Russia
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14
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Golberg D, Costa PMFJ, Wang MS, Wei X, Tang DM, Xu Z, Huang Y, Gautam UK, Liu B, Zeng H, Kawamoto N, Zhi C, Mitome M, Bando Y. Nanomaterial engineering and property studies in a transmission electron microscope. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:177-194. [PMID: 21997341 DOI: 10.1002/adma.201102579] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Indexed: 05/31/2023]
Abstract
Modern methods of in situ transmission electron microscopy (TEM) allow one to not only manipulate with a nanoscale object at the nanometer-range precision but also to get deep insights into its physical and chemical statuses. Dedicated TEM holders combining the capabilities of a conventional high-resolution TEM instrument and atomic force -, and/or scanning tunneling microscopy probes become the powerful tools in nanomaterials analysis. This progress report highlights the past, present and future of these exciting methods based on the extensive authors endeavors over the last five years. The objects of interest are diverse. They include carbon, boron nitride and other inorganic one- and two-dimensional nanoscale materials, e.g., nanotubes, nanowires and nanosheets. The key point of all experiments discussed is that the mechanical and electrical transport data are acquired on an individual nanostructure level under ultimately high spatial, temporal and energy resolution achievable in TEM, and thus can directly be linked to morphological, structural and chemical peculiarities of a given nanomaterial.
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Affiliation(s)
- Dmitri Golberg
- Nanotube Unit, International Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan.
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