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Gerasimenko AY, Kuksin AV, Shaman YP, Kitsyuk EP, Fedorova YO, Murashko DT, Shamanaev AA, Eganova EM, Sysa AV, Savelyev MS, Telyshev DV, Pavlov AA, Glukhova OE. Hybrid Carbon Nanotubes-Graphene Nanostructures: Modeling, Formation, Characterization. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162812. [PMID: 36014677 PMCID: PMC9412346 DOI: 10.3390/nano12162812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 06/06/2023]
Abstract
A technology for the formation and bonding with a substrate of hybrid carbon nanostructures from single-walled carbon nanotubes (SWCNT) and reduced graphene oxide (rGO) by laser radiation is proposed. Molecular dynamics modeling by the real-time time-dependent density functional tight-binding (TD-DFTB) method made it possible to reveal the mechanism of field emission centers formation in carbon nanostructures layers. Laser radiation stimulates the formation of graphene-nanotube covalent contacts and also induces a dipole moment of hybrid nanostructures, which ensures their orientation along the force lines of the radiation field. The main mechanical and emission characteristics of the formed hybrid nanostructures were determined. By Raman spectroscopy, the effect of laser radiation energy on the defectiveness of all types of layers formed from nanostructures was determined. Laser exposure increased the hardness of all samples more than twice. Maximum hardness was obtained for hybrid nanostructure with a buffer layer (bl) of rGO and the main layer of SWCNT-rGO(bl)-SWCNT and was 54.4 GPa. In addition, the adhesion of rGO to the substrate and electron transport between the substrate and rGO(bl)-SWCNT increased. The rGO(bl)-SWCNT cathode with an area of ~1 mm2 showed a field emission current density of 562 mA/cm2 and stability for 9 h at a current of 1 mA. The developed technology for the formation of hybrid nanostructures can be used both to create high-performance and stable field emission cathodes and in other applications where nanomaterials coating with good adhesion, strength, and electrical conductivity is required.
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Affiliation(s)
- Alexander Yu. Gerasimenko
- Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, 124498 Moscow, Russia
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
| | - Artem V. Kuksin
- Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, 124498 Moscow, Russia
| | - Yury P. Shaman
- Scientific-Manufacturing Complex “Technological Centre”, Shokin Square 1, bld. 7 off. 7237, 124498 Moscow, Russia
- Institute of Nanotechnology of Microelectronics of the Russian Academy of Sciences, Leninsky Prospekt 32A, 119991 Moscow, Russia
| | - Evgeny P. Kitsyuk
- Scientific-Manufacturing Complex “Technological Centre”, Shokin Square 1, bld. 7 off. 7237, 124498 Moscow, Russia
| | - Yulia O. Fedorova
- Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, 124498 Moscow, Russia
- Scientific-Manufacturing Complex “Technological Centre”, Shokin Square 1, bld. 7 off. 7237, 124498 Moscow, Russia
| | - Denis T. Murashko
- Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, 124498 Moscow, Russia
| | - Artemiy A. Shamanaev
- Scientific-Manufacturing Complex “Technological Centre”, Shokin Square 1, bld. 7 off. 7237, 124498 Moscow, Russia
| | - Elena M. Eganova
- Institute of Nanotechnology of Microelectronics of the Russian Academy of Sciences, Leninsky Prospekt 32A, 119991 Moscow, Russia
| | - Artem V. Sysa
- Scientific-Manufacturing Complex “Technological Centre”, Shokin Square 1, bld. 7 off. 7237, 124498 Moscow, Russia
| | - Mikhail S. Savelyev
- Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, 124498 Moscow, Russia
- Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
| | - Dmitry V. Telyshev
- Institute of Biomedical Systems, National Research University of Electronic Technology MIET, Shokin Square 1, 124498 Moscow, Russia
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
| | - Alexander A. Pavlov
- Institute of Nanotechnology of Microelectronics of the Russian Academy of Sciences, Leninsky Prospekt 32A, 119991 Moscow, Russia
| | - Olga E. Glukhova
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
- Department of Physics, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia
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Optimization of Thermal and Mechanical Properties of Polypropylene-Wollastonite Composite Drawn Fibers Based on Surface Response Analysis. Polymers (Basel) 2022; 14:polym14050924. [PMID: 35267749 PMCID: PMC8912407 DOI: 10.3390/polym14050924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/15/2022] [Accepted: 02/22/2022] [Indexed: 11/17/2022] Open
Abstract
The thermal and mechanical properties of polypropylene-wollastonite composite drawn fibers were optimized via experiments selected with the Box-Behnken approach. The drawing ratio, the filler and the compatibilizer content were chosen as design variables, while the tensile strength, the melting enthalpy and the onset decomposition temperature were set as response variables. Drawn fibers with tensile strength up to 535 MPa were obtained. Results revealed that the drawing ratio is the most important factor for the enhancement of tensile strength, followed by the filler content. All the design variables slightly affected the melting temperature and the crystallinity of the matrix. Also, it was found that the addition of polypropylene grafted with maleic anhydride as compatibilizer has a multiple effect on the final properties, i.e., it induces the dispersion of both the antioxidant and the filler, tending to increase thermal stability and tensile strength, while, on the same time, deteriorates mechanical and thermal properties due to its lower molecular weight and thermal stability. Such behavior does not allow for simultaneous maximization of thermal stability and tensile strength. Optimization based on a compromise, i.e., targeting maximization of tensile strength and onset decomposition temperature higher than 300 °C, yields high desirability values and predictions in excellent agreement with verification experiments.
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Ma L, Liu Q, Wu R, Meng Z, Patil A, Yu R, Yang Y, Zhu S, Fan X, Hou C, Li Y, Qiu W, Huang L, Wang J, Lin N, Wan Y, Hu J, Liu XY. From Molecular Reconstruction of Mesoscopic Functional Conductive Silk Fibrous Materials to Remote Respiration Monitoring. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000203. [PMID: 32452630 DOI: 10.1002/smll.202000203] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 04/05/2020] [Accepted: 04/16/2020] [Indexed: 05/28/2023]
Abstract
Turning insulating silk fibroin materials into conductive ones turns out to be the essential step toward achieving active silk flexible electronics. This work aims to acquire electrically conductive biocompatible fibers of regenerated Bombyx mori silk fibroin (SF) materials based on carbon nanotubes (CNTs) templated nucleation reconstruction of silk fibroin networks. The electronical conductivity of the reconstructed mesoscopic functional fibers can be tuned by the density of the incorporated CNTs. It follows that the hybrid fibers experience an abrupt increase in conductivity when exceeding the percolation threshold of CNTs >35 wt%, which leads to the highest conductivity of 638.9 S m-1 among organic-carbon-based hybrid fibers, and 8 times higher than the best available materials of the similar types. In addition, the silk-CNT mesoscopic hybrid materials achieve some new functionalities, i.e., humidity-responsive conductivity, which is attributed to the coupling of the humidity inducing cyclic contraction of SFs and the conductivity of CNTs. The silk-CNT materials, as a type of biocompatible electronic functional fibrous material for pressure and electric response humidity sensing, are further fabricated into a smart facial mask to implement respiration condition monitoring for remote diagnosis and medication.
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Affiliation(s)
- Liyun Ma
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
- College of Textile and Clothing, Xinjiang University, Urumqi, 830000, P. R. China
| | - Qiang Liu
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
- Institute of Advanced Materials, East China JiaoTong University, Nanchang, 330013, P. R. China
| | - Ronghui Wu
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
- Department of Physics, Faculty of Science, National University of Singapore, Singapore, 117542, Singapore
| | - Zhaohui Meng
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Aniruddha Patil
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Rui Yu
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Yun Yang
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Shuihong Zhu
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Xuwei Fan
- Department of Information and Communication Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Chen Hou
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Yanran Li
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Wu Qiu
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Lianfen Huang
- Department of Information and Communication Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Jun Wang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Naibo Lin
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
| | - Yizao Wan
- Institute of Advanced Materials, East China JiaoTong University, Nanchang, 330013, P. R. China
| | - Jian Hu
- Institute of Advanced Materials, East China JiaoTong University, Nanchang, 330013, P. R. China
| | - Xiang Yang Liu
- Research Institution for Biomimetics and Soft Matter, College of Physical Science and Technology, College of Materials, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, Xiamen University, Xiamen, 361005, P. R. China
- Institute of Advanced Materials, East China JiaoTong University, Nanchang, 330013, P. R. China
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Firestone G, Huang H, Bochinski JR, Clarke LI. Photothermally-driven thermo-oxidative degradation of low density polyethylene: heterogeneous heating plus a complex reaction leads to homogeneous chemistry. NANOTECHNOLOGY 2019; 30:475706. [PMID: 31416060 DOI: 10.1088/1361-6528/ab3bc0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photothermal heating from embedded nanoparticles, a process whereby visible light is converted into heat resulting in a high temperature in each particle's immediate vicinity, was utilized to degrade low density polyethylene (LDPE) via thermo-oxidation. The spatially-varying steady-state photothermal temperature field is a potential mechanism by which ambient light (e.g. sunlight) could be used to drive chemical reactions within solid materials and may result in a non-uniform pattern of products, an advantage or disadvantage depending on application. Novel approaches to control polymer degradation are of interest because of the goal of remediating plastic waste, including autonomous means to minimize its effect when unconfined in the environment. For thermoplastic auto-oxidation, heterogeneous degradation would likely enhance deleterious micro-fragmentation however, the multi-step, multi-site nature of the reaction mitigated the temperature non-uniformity. A photothermally-heated LDPE nanocomposite with silver nanoparticle and cobalt-stearate additives showed degradation, characterized by ultraviolet-visible and Fourier-transform infrared absorption spectroscopy, electron microscopy, and mechanical testing, nearly identical to that resulting from uniform conventional treatment at the same average temperature.
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Affiliation(s)
- Gabriel Firestone
- Department of Physics, North Carolina State University, Raleigh, NC 27695, United States of America
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Bu X, Lu Y, Zhang Z, Liu F, Liu J, Huai X. Hierarchical Carbon Nanotube@SiO 2-TiO 2 Reinforced Polyurethane Composites: Thermal, Mechanical and Abrasion Resistance Properties. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1471711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Xiaohai Bu
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing, China
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, China
| | - Yi Lu
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, China
| | - Zewu Zhang
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing, China
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, China
| | - Feiyou Liu
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, China
| | - Jinghan Liu
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, China
| | - Xu Huai
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing, China
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, China
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