Article
Materials Science, Multidisciplinary
Le N. M. Dinh, Bich Ngoc Tran, Vipul Agarwal, Per B. Zetterlund
Summary: This study explores the effects of different preparation methods on polymer nanocomposite materials, and finds that the stability and physical properties of the nanocomposite films are greatly influenced by the preparation method and compositional details.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Coatings & Films
S. Ariharan, Rita Maurya
Summary: An efficient Al2O3-based nanocomposite coating was developed for the top thermally insulative layer of thermal barrier coatings (TBCs), showing higher scratch coefficient and decent scratch resistance compared to monolithic Al2O3. However, the addition of carbon nanotubes (CNT) in the nanocomposite coatings did not significantly improve the scratch toughness. On the other hand, the mere addition of 8YSZ and 3YSZ in the Al2O3 matrix showed an increment in scratch toughness compared to that of monolithic Al2O3 coating.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Composites
Nasim Jan Mohammadi Dashtaki, Amir Hossein Nassajpour-Esfahani, Morteza Bayareh, Pouya Rezai, Ali Doostmohammadi
Summary: The study found that the properties of nanocomposites were dependent on the concentration of CNTs. Nanocomposites fabricated in a quasi-AC electric field showed more uniform and non-agglomerated characteristics. With 1 wt% of CNT, the nanocomposite exhibited suitable electrical conductivity and mechanical properties for microfluidic devices.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Chemistry, Physical
Enxiang Jiao, Ziru Sun, Hangzhen Zhang, Yifei Wu, Yuanbiao Liu, Kai Guo, Haijun Zhang
Summary: The development of thermal interface materials (TIMs) with excellent mechanical properties and efficient heat dissipation capability has become necessary for the next generation of integrated electronics and flexible devices. In this study, a covalently cross-linked cellulose nanofiber/MXene/single-walled carbon nanotube (CNF/MXene/SWCNT-KH550, K-CMC) nanocomposite film was successfully fabricated. This unique cross-linked ternary nanocomposite film greatly promoted load transfer and energy dissipation between components, thereby improving its mechanical properties.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Abbas Bahrami, Ali Mohammadnejad, Mahnaz Sajadi
Summary: This paper investigates the concept and possibility of synthesizing high entropy alloy (HEA)/carbon nanotube (CNT) nanocomposites. AlCoFeMnNi was chosen as the matrix with added 1 wt% CNT as reinforcement. The study shows that CNT addition significantly enhances the maximum shear strength of the alloy, and discusses the implications for mechanical properties and microstructure of HEA/CNT nanocomposites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Takumi Watanabe, Akira Itoh, Tomohisa Watanabe, Takeshi Kizaki, Masayasu Inaguma, Atushi Hosoi, Hiroyuki Kawada
Summary: By conducting post-synthesis treatments such as polymer solution impregnation, graphitization, and iodinemonochloride/dichloromethane doping, the electrical properties of CNT yarns can be significantly enhanced. The two-step treatment of GT and ICl/DCM doping shows the most significant improvement in the conductivity and current capacity of the CNT yarns. The purification of the crystalline structure through these treatments is crucial in increasing the electron carrier density and improving the electrical properties.
Article
Chemistry, Physical
Yu Cai, Huitao Yu, Can Chen, Yiyu Feng, Mengmeng Qin, Wei Feng
Summary: Vertically aligned carbon nanotube (VACNT) arrays have superior vertical thermal conductivity but suffer from weak interaction between adjacent carbon nanotubes (CNT) during polymer infiltration. This study introduces a novel three-dimensional CNT (3DCNT) network structure, where VACNT is crosslinked by secondary CNT, to provide in-plane phonon paths and maintain structural stability. Results show that the 3DCNT20/P composite has significantly higher vertical and horizontal thermal conductivity compared to the IVACNT/P composite.
Article
Materials Science, Multidisciplinary
Arsalan Dadgar, Afsaneh Maleki, Leila Mahdavian, Fereydoon Khazali
Summary: This study investigates the electronic structure and thermodynamic parameters of titanium doping at different positions on carbon nanotubes. The results show that titanium is more stable and leads to better structural stability and thermodynamic parameters when located near the vertex of the nanotube sidewall and at the central axis. Additionally, the study identifies the most stable and active structure for carbon monoxide adsorption on titanium-doped nanotubes.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
W. Yu, X. Zhao, P. Jiang, C. Liu, R. Yang
Summary: The alignment of super-aligned CNT films plays a crucial role in tuning their thermal transport properties, with different alignment configurations affecting thermal conductivity and anisotropic ratio. This study provides an efficient method for designing thermally anisotropic films for thermal management by manipulating alignment.
MATERIALS TODAY PHYSICS
(2021)
Article
Polymer Science
Stepan Lomov, Nikita A. Gudkov, Sergey G. Abaimov
Summary: This study analyzes the electrical conductivity and piezoresistivity of carbon nanotube nanocomposites, and finds that the uncertainty in CNT electrical properties leads to a higher level of uncertainty in homogenized conductivity. The influence of tunneling barrier energy on homogenized conductivity and gauge factor is weak for defect-prone nanotubes, but becomes stronger for CNTs with higher intrinsic conductivity.
Article
Chemistry, Multidisciplinary
Min Han, Yunpeng Ding, Jinbiao Hu, Zhiai Shi, Sijia Jiao, Xiaoqin Guo, Hanying Wang, Linan An
Summary: The study investigated the effect of hot oscillatory pressing (HOP) on the preparation of carbon nanotube reinforced copper matrix nanocomposites, finding that HOP resulted in higher density and hardness. With decreasing sintering temperature in HOP, the amount of deformation defect gradually increased, playing a key role in increasing hardness.
Article
Chemistry, Physical
Chul-Jun Yoon, Sung-Hyun Lee, Yoo-Bin Kwon, Kyoungsoo Kim, Kun-Hong Lee, Seung Min Kim, Young-Kwan Kim
Summary: Incorporation of TiO2 nanoparticles onto carbon nanotube fibers enhances their thermal stability and structural integrity, resulting in sustainable mechanical and electrical properties as well as high photocatalytic activity under UV exposure. This demonstrates that the incorporation of TiO2 NPs is an efficient strategy to improve the long-term stability and applicability of CNTFs.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Mohammad Nankali, Norouz Mohammad Nouri, Nima Geran Malek, Morteza Amjadi
Summary: This study presents a temperature-dependent 3D percolation model for predicting the sensory response of stretchable strain sensors in complex environmental conditions. Experimental results validate the model's effectiveness for assessing the dynamic response characteristics of strain sensors.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Green & Sustainable Science & Technology
Mostafa Ghasemi, Mehdi Sedighi, Yie Hua Tan
Summary: In this study, CNT/Pt nanocomposites were synthesized as a cathode catalyst for MFCs, showing improved efficiency in wastewater treatment and energy production. The nanocomposite with a concentration of 0.3 mg/cm² exhibited the best performance in terms of CE, internal resistance, COD removal, and power generation, highlighting its potential for sustainable clean energy production.
Article
Nanoscience & Nanotechnology
Haohui Liu, Siyu Wang, Ling Long, Jianbo Jia, Minchao Liu
Summary: Designing Co,N-codoped carbon nanocomposites can enhance the efficiency and stability of oxygen reduction reaction, thanks to the increased active sites exposure and improved conductivity and mass transport.
