Searched for: subject%3A%22nanotubes%22
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Belardinelli, P. (author), Lenci, S. (author), Alijani, F. (author)
Through molecular dynamics simulations, we demonstrate the possibility of internal resonances in single-walled carbon nanotubes. The resonant condition is engineered with a lack of symmetry in the boundary condition and activated by increasing the energy exchange with a coupled thermal bath. The critical temperature threshold for initiating...
journal article 2024
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Kostaras, Christos (author), Pavlou, C. (author), Galiotis, Costas (author), Dassios, Konstantinos G. (author)
As an emerging class of materials, nanocarbons have attracted significant interest for practical applications due to their remarkable mechanical, electrical and thermal properties coupled with high surface areas and tunable surface chemistry. However, challenges like high aspect ratios and poor dispersibility in polymer matrices hinder their...
review 2024
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Nguyen, Ngoc Quang (author), Jeong, Younhee (author), Abelmann, L. (author), Ryu, Jungju (author), Sohn, Daewon (author)
Halloysite nanotubes (HNTs) have been extensively investigated for potential utilization due to their unique structure and properties as a type of natural, eco-friendly clay. The synthesis and modification of magnetic halloysite nanotubes was studied using several experimental techniques including SEM, TEM, FT-IR, Raman spectroscopy, UV-Vis...
journal article 2024
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Santos, Janaina S. (author), Fereidooni, Mohammad (author), Márquez, Victor (author), Paz-López, Christian V. (author), Villanueva, Martin S. (author), Buijnsters, J.G. (author), Praserthdam, Supareak (author), Praserthdam, Piyasan (author)
This study assessed the photoactivity of amorphous and crystalline TiO<sub>2</sub> nanotube arrays (TNA) films in gas phase CO<sub>2</sub> reduction. The TNA photocatalysts were fabricated by titanium anodization and submitted to an annealing treatment for crystallization and/or cathodic reduction to introduce Ti<sup>3+</sup> and oxygen...
journal article 2024
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Doust Mohammadi, Mohsen (author), Abdullah, Hewa Y. (author), Biskos, G. (author), Bhowmick, Somnath (author)
The density functional theory (DFT) framework was used to investigate the intermolecular interactions between cyanogen chloride (CNCl) pollutant gas molecule with pristine boron nitride nanotubes (BNNT), Al-doped boron nitride nanotubes (BNAlNT), and carbon boron nitride nanotubes (BC<sub>2</sub>NNT). The geometric structures of the resulting...
journal article 2023
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Li, Hongyan (author), Li, Z. (author), Qiu, Liangsheng (author), Dong, Sufen (author), Ouyang, Jian (author), Dong, Xufeng (author), Han, Baoguo (author)
This study aims to understand the effects and mechanisms of length, diameter, and functional group of carbon nanotubes (CNTs) on rheological behaviors of cementitious composites. The experimental results show that the addition of CNTs decreases the flow index and increases the critical shear rate of cementitious composites. CNTs with a sub...
journal article 2023
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Sacco, L.N. (author), Vollebregt, S. (author)
The fabrication and design of carbon-based hierarchical structures with tailored nano-architectures have attracted the enormous attention of the materials science community due to their exceptional chemical and physical properties. The collective control of nano-objects, in terms of their dimensionality, orientation and size, is of paramount...
review 2023
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Subramanian, N. (author), Bisagni, C. (author)
The effectiveness of carbonaceous nanoparticles in arresting and delaying damage in nanocomposites has been attributed to multiscale toughening mechanisms. To explore their application in joined interfaces of composites, this study investigates the use of carbon nanotube (CNT) interleaved films for co-cured joining of composite parts and their...
conference paper 2022
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Wang, H. (author), Tao, Jie (author), Jin, Kai (author), Wang, Xiaoyue (author), Dong, Ying (author)
A flexible sensor with excellent pressure, temperature, and bending sensitivity is fabricated based on the conductive skeleton material with hierarchical porous structure. The conductive skeleton material is composed of carbon fibres (CFs) and multiwalled carbon nanotubes (MWCNTs), in which lay perpendicular to each other CFs are used as...
journal article 2022
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Akram, Naveed (author), Hosseini, M. (author), Sadri, Rad (author), Kazi, S.N. (author), Kasaeian, Alibakhsh (author), Yarmand, H. (author), Hooman, K. (author), Ahmad, Roslina (author)
In the present research, the synthesis of highly stable multiwalled carbon nanotubes in aqueous media is developed using a one-pot, covalent and green functionalization technique to improve the heat transfer and hydrodynamic behavior of a horizontal stainless-steel tube subjected to a uniform heat flow at its outer surface. Instead of using...
journal article 2022
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Doust Mohammadi, Mohsen (author), Abdullah, Hewa Y. (author), Bhowmick, Somnath (author), Biskos, G. (author)
The ability of carbon- and silicon-based nanotubes, including pure carbon, silicon carbide, and Ge-doped silicon carbide nanotubes (CNT, SiCNT, SiCGeNT, respectively), for sensing highly toxic dichlorosilane (H2SiCl2) are investigated using quantum chemistry calculations. The intermolecular interactions between the sensing material and the gas...
journal article 2022
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Mohammadi, Mohsen Doust (author), Abdullah, Hewa Y. (author), Biskos, G. (author), Bhowmick, Somnath (author)
We have investigated the possibility of utilizing various single-walled pristine and doped carbon nanotubes as adsorbents for the 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) gaseous molecule. Three candidates, including pristine carbon nanotube (CNT), silicon carbide nanotube (SiCNT) and germanium-doped SiCNT (SiCGeNT) are identified and...
journal article 2021
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Kurupath, Vishnu Prasad (author), Kannam, Sridhar Kumar (author), Hartkamp, Remco (author), Sathian, Sarith P. (author)
Biological nanopores such as aquaporins combine the opposing functions of high water permeation and total ion exclusion in part by the virtue of their hourglass shape. Here, we perform molecular dynamics simulations to examine water and ion conduction through hourglass shaped nanopores created from carbon nanotubes (CNTs) of chirality (6,6), ...
journal article 2021
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Imanian Ghazanlou, Siavash (author), Eghbali, Baitallah (author), Petrov, R.H. (author)
The effects of the post-deformation annealing on the microstructural evolution of hot rolled Al7075 matrix composites reinforced with CNTs and GNPs were investigated. The multi-pass hot rolling was applied on the stir cast samples. Annealing was then applied to the composites at 450 °C for 4 h. Microstructural evolution was examined by SEM,...
journal article 2021
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Staal, Jeroen (author), Caglar, Baris (author), Hank, Travis (author), Wardle, Brian L. (author), Gorbatikh, Larissa (author), Lomov, Stepan V. (author), Michaud, Véronique (author)
In-plane permeability of small area (100 × 50 mm) alumina fiber woven fabrics grafted with aligned carbon nanotubes (CNT) was quantified by placing them in series with a glass mat of known permeability during a flow experiment. The methodology was first validated on a reference woven textile. Permeability values matched those obtained by a...
journal article 2021
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Mohammadi, Mohsen Doust (author), Abdullah, Hewa Y. (author), Biskos, G. (author), Bhowmick, Somnath (author)
There is a compelling reason to design cost-effective sensors to detect and measure harmful molecules such as dichlorosilane (H<sub>2</sub>SiCl<sub>2</sub>) in the air. In this work, density functional theory (DFT) has been used to study the nature of the intermolecular interactions between the H<sub>2</sub>SiCl<sub>2</sub> gas molecule with...
journal article 2021
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Quan, D. (author), Moloney, Peter (author), Carolan, Declan (author), Abourayana, Hisham (author), Ralph, Calvin (author), Ivankovic, Alojz (author), Dowling, Denis (author), Murphy, Neal (author)
This work studied the effects of adding short basalt fibers (BFs) and multi-walled carbon nanotubes (MWCNTs), both separately and in combination, on the mechanical properties, fracture toughness, and electrical conductivity of an epoxy polymer. The surfaces of the short BFs were either treated using a silane coupling agent or further...
journal article 2021
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Santos, Luis F.P. (author), Ribeiro, Bruno (author), Hein, Luis R.O. (author), Alderliesten, R.C. (author), Zarouchas, D. (author), Botelho, Edson C. (author), Costa, Michelle L. (author)
This work concerns the fatigue behavior at three different temperature conditions (−40, 20, and 80°C) and the addition of multiwalled carbon nanotube (MWCNT) into a carbon-fiber reinforced poly(ether-imide) composite. The incorporation of MWCNT into the composite increased the tensile strength and Young's modulus by up 5 and 2%, respectively....
journal article 2020
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Shooshtari, M. (author), Salehi, Alireza (author), Vollebregt, S. (author)
Carbon nanotubes (CNTs) have shown promising results for gas sensing due to their high surface area. Since humidity has a great impact on the electrical conductivity of resistive CNT gas sensors, we have investigated the change of humidity on their sensing properties. In this study, we fabricated vertically aligned CNT-based gas sensors for the...
journal article 2020
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Remes, Adriana (author), Manea, Florica (author), Motoc, Sorina (author), Baciu, Anamaria (author), Szerb, Elisabeta I. (author), Gascon, Jorge (author), Gug, Georgiana (author)
A novel electrochemical glucose sensor was developed, based on a multiwall carbon nanotubes (MWCNTs)-copper-1,3,5-benzenetricarboxylic acid (CuBTC)-epoxy composite electrode, named MWCNT-CuBTC. The electrode nanocomposite was prepared by a two-roll mill procedure and characterized morphostructurally by scanning electron microscopy (SEM). The...
journal article 2020
Searched for: subject%3A%22nanotubes%22
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