Article
Engineering, Mechanical
Xuan Ye, Mengxiong Liu, Xide Li, Xiaoming Liu
Summary: This study proposes a lateral loading method to measure the interwall interaction force of ultra-long carbon nanotubes (CNTs) and predicts the force by using a theoretical model and finite element simulations. The length of CNTs is found to be a critical factor that affects the pull-out force.
EXTREME MECHANICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xiangyang Wang, Huibo Qi, Xueye Chen, Zhongyu Sun, Huawei Zhou, Junying Bi, Lifen Hu
Summary: This paper applies the DCM method to predict the buckling of inner tubes of DWNTs, showing that the lengths and radii of outer tubes influence the buckling patterns of inner tubes. The inner tubes of DWNTs with an interlayer spacing of 0.2034 nm have the strongest buckling resistance, and the local critical axial compression ratio of inner tubes increases with the lengths of inner and outer tubes when the interlayer spacing of DWNTs is less than 0.34 nm.
MECHANICS OF MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zakaria Saadi, Simon G. King, Jose Anguita, Vlad Stolojan, S. Ravi P. Silva
Summary: Thermoelectric materials offer a promising solution for recovering wasted energy, but their efficiency is low and the best materials are brittle, toxic, and expensive. This study demonstrates that flexible films of double-walled carbon nanotubes can achieve low thermal conductivity and high electrical conductivity, leading to the development of flexible, cheaper, and more efficient thermoelectric generators.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Ayse Nihan Basmaci
Summary: This study investigates the behaviors of electromagnetic wave propagation in a double-walled carbon nanotube, discussing the effects of material property parameters and the interaction between the inner and outer tubes. Nonlocal effects of the DWCNT on electromagnetic wave propagation and the specific frequencies of propagation are examined, with results showing convergence of frequencies at higher wavenumbers and decreasing frequencies with increasing nonlocal and material parameters.
Article
Acoustics
Sneha Singh
Summary: This article examines the effect of diameter, length, and chirality on the fundamental coupled torsional-radial vibration frequency of single-walled carbon nanotube. Through molecular-structural-mechanics-approach and finite element analysis, a mathematical form for this frequency is derived, which accurately predicts the frequencies of single-walled carbon nanotubes. The study finds that the vibration frequency is independent of diameter and inversely proportional to length, and the behavior of single-walled carbon nanotubes in these vibrations is similar to thin shells.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Nanoscience & Nanotechnology
Jake Dudley Mehew, Marina Y. Timmermans, David Saleta Reig, Stefanie Sergeant, Marianna Sledzinska, Emigdio Chavez-Angel, Emily Gallagher, Clivia M. Sotomayor Torres, Cedric Huyghebaert, Klaas-Jan Tielrooij
Summary: Nanomaterials, particularly carbon nanotubes (CNTs), are promising candidates for applications requiring high thermal conductivity. In this study, the thermal conductivity of free-standing double-walled CNT films was measured using all-optical Raman thermometry, showing significantly enhanced thermal conduction compared to single-walled CNT films. This research contributes to a better understanding of these nanomaterials and their suitability for extreme ultraviolet (EUV) lithography.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jun Gao, Yaxin Jiang, Sibo Chen, Hongjie Yue, He Ren, Zhenxing Zhu, Fei Wei
Summary: This study demonstrates that molecular evolution is a characteristic of the preparation of ultralong carbon nanotubes, where chiral assembly is achieved through template auto-catalysis growth, and environmental factors affect the evolutionary growth.
Article
Chemistry, Physical
Bin-Hao Chen
Summary: The adsorption properties of hydrogen molecules in twisted double-walled carbon nanotubes were investigated, and it was found that the amount of stored hydrogen and the kinetic diameter of hydrogen molecules are influenced by the degree of twisting. Additionally, the adsorption heat was found to depend on the extent of twisting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Tomitsugu Taguchi, Shunya Yamamoto, Hironori Ohba
Summary: The study successfully synthesized double-thick-walled (DTW) silicon carbide (SiC) nanotubes with unique structures and properties. Experimental results showed that DTW SiC nanotubes with perfect structures can only be synthesized with an MWCNT wall thickness of at least 50 nm.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Afshin Zamani Zakaria
Summary: In this research, multiscale modeling of wall separation for various double-walled carbon nanotube pairs has been conducted. The effects of end atom VDWs and overlapping region on the pullout force vary depending on the type of DWCNT pairs. Proper finite element coding is used to separate and analyze the effects of different segments during pullout process.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Fabrizio Perrachione, Pablo R. Dalmasso, Fabiana A. Gutierrez, Gustavo A. Rivas
Summary: This study presents an electrochemical sensor using double-walled carbon nanotubes modified with garlic extract for the selective and sensitive quantification of lead(II) in environmental water samples. The sensor showed high sensitivity, reproducibility, and selectivity even in the presence of other ecotoxicologically relevant cations. It was successfully applied for the quantification of lead(II) in river and lagoon water.
MICROCHEMICAL JOURNAL
(2021)
Article
Physics, Multidisciplinary
Yi Ding, Lei-Mei Sheng
Summary: This study explores the controllable band gap of single-walled carbon nanotubes through torsional manipulation, presenting a novel torsional model and providing valuable contributions to the development of nanoelectronic devices and microintegrated circuits from a theoretical perspective.
ACTA PHYSICA SINICA
(2023)
Article
Engineering, Environmental
Shulan Hao, Liu Qian, Qianru Wu, Dong Li, Fangqian Han, Lihu Feng, Liantao Xin, Tao Yang, Shiying Wang, Jin Zhang, Maoshuai He
Summary: This study successfully synthesized high-quality single-walled carbon nanotubes (SWNTs) on layered double hydroxides (LDHs) containing Fe and FeCo using CO chemical vapor deposition (CVD). The effects of temperature and catalyst composition on the diameter and chirality distributions of SWNTs were investigated. It was found that subnanometer SWNTs were produced by both catalysts at low temperatures. The (6, 5) SWNTs were synthesized from LDHs containing bimetallic FeCo at 600 degrees C, and the chirality distribution was further narrowed by a two-phase extraction method.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
You Li, Wenhao Li, Dandan Liu, Tianxiao Chen, Shijie Jia, Fengchun Yang, Xin Zhang
Summary: The design and development of high-performance electrocatalysts for oxygen evolution reaction (OER) have a considerable impact on research. Significant progress has been made recently in the preparation of effective carbon-based OER catalysts, but the research focus on double-walled carbon nanotubes (DWNTs) for OER catalysis is limited. This study successfully obtains carboxyl functionalized DWNTs using plasma etching strategy and elucidates the catalytic mechanism of carboxyl groups in the OER process.
ELECTROCHIMICA ACTA
(2022)
Article
Mathematics, Applied
Xinlei Li, Jianfei Wang
Summary: This paper investigates the axial buckling behavior of multi-walled carbon nanotubes (MWCNTs), taking into account the effects of wall number, initial pressure, and aspect ratio. The results expand the scope of buckling analysis and provide theoretical support for the application of carbon nanotubes.
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
(2022)
Article
Engineering, Multidisciplinary
Bin Bao, Quan Wang, Nan Wu, Shaoyi Zhou
Summary: This research introduces a hand-held piezoelectric energy-harvesting structure for portable human-motion energy harvesting, and analyzes the dynamic changes of electric and magnetic fields during rotation through simulation and treadmill experiments. The results demonstrate that the device can generate a certain voltage at specific speeds and charge a capacitor accordingly.
Article
Materials Science, Multidisciplinary
Bin Bao, Mickael Lallart, Quan Wang
Summary: This research explores the bandgap coupling effects between nonlinear synchronized switch damping and two-order linear resonant bandgaps in a piezoelectric meta-structure. The results show that bandgap coupling can achieve a balance between the advantages of both nonlinear and two-order linear resonant bandgaps, providing a new method to manipulate elastic waves in a diversified way. Through theoretical modeling, band structure and vibration transmittance performance of the proposed structure were investigated in detail.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2022)
Review
Chemistry, Analytical
Weijian Ding, Yuqing Liu, Tomoki Shiotani, Quan Wang, Ningxu Han, Feng Xing
Summary: This review paper provides a comprehensive overview of recent advances in cement-based piezoelectric composites in infrastructural health monitoring, highlighting their durability, sensitivity, and compatibility. It addresses the critical issues of materials and fabrication process on the final performance, while also emphasizing the need for further research in experimental and simulation, materials, fabrication technique, and application.
Article
Thermodynamics
Bin Bao, Shaoyi Zhou, Quan Wang
Summary: The proposed structure demonstrated positive coupling effects between internal resonance and nonlinearity, resulting in a three times wider internal resonance bandwidth for energy harvesting in the x-direction compared to traditional systems. Additionally, the structure achieved an additional internal resonant frequency range (3.4 Hz-4.3 Hz) for enhancing energy harvesting performance in the z-direction. Experimental results showed a maximum power output of 0.64 mW at 7.5 Hz in the investigated frequency domain.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Materials Science, Multidisciplinary
Weijian Ding, Weiwei Xu, Zhijun Dong, Yuqing Liu, Quan Wang, Tomoki Shiotani
Summary: In this study, the piezoelectric properties and microstructure of cement-based piezoelectric ceramic composites (CPCs) were investigated. The hydration capacity of the cement matrix was found to have an impact on the piezoelectric properties, with the piezoelectric strain factor of hydrated cement-based composites showing a decreasing trend with age. The morphology and product structure of the composites after curing and polarization were significantly different, with the interfacial transition zone of the fresh cement-based composite differing from the hydrated cement-based composite due to insufficient binding between CSH and PZT.
MATERIALS CHARACTERIZATION
(2021)
Article
Thermodynamics
Xiangdong Xie, Heng Liao, Jinfeng Zhang, Guofeng Du, Quan Wang, Yong Hao
Summary: A theoretical model is developed for a piezoelectric coupled torsional beam to utilize the positive effect of the piezoelectric material. A corresponding cylinder harvester is presented, made of a series of paired PCTBs and excitation teeth, successfully inducing torsional shear to the piezoelectric bimorphs leading to energy harvesting. The research results show that the RMS of the electric power can reach up to 8.426 KW for a cylinder harvester structure with a radius of 0.5 m.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Nanoscience & Nanotechnology
Qingxian Liu, Yuan Liu, Junli Shi, Zhiguang Liu, Quan Wang, Chuan Fei Guo
Summary: This study presents a simple strategy to fabricate an iontronic pressure sensor using open-cell polyurethane foams with high porosity as a continuous three-dimensional network skeleton loaded with ionic liquid. The resulting pressure sensor exhibits super high sensitivity, high pressure resolution, and remarkable mechanical stability. This research provides a simple, cost-effective, and scalable method for manufacturing highly sensitive pressure sensors.
NANO-MICRO LETTERS
(2022)
Article
Multidisciplinary Sciences
Yuqing Liu, Ge Guan, Yinghao Li, Ju Tan, Panke Cheng, Mingcan Yang, Bingyun Li, Quan Wang, Wen Zhong, Kibret Mequanint, Chuhong Zhu, Malcolm Xing
Summary: This study proposes a hydrophobic adhesive UIHA that can perform in the presence of body fluids. The gelation of the hydrophobic fluid enables strong bonding to tissues and exceptional water resistance.
Article
Nanoscience & Nanotechnology
Peng Dong, Jingyi Liu, Huiru Wang, Hongyan Yuan, Quan Wang
Summary: This study demonstrates the potential of using the alkali-activation method to recycle hazardous municipal solid waste incineration fly ash into construction materials with ecological safety and high performance.
NANOTECHNOLOGIES IN CONSTRUCTION-A SCIENTIFIC INTERNET-JOURNAL
(2022)
Article
Engineering, Civil
Shihao Cui, Pooneh Maghoul, Xihui Liang, Nan Wu, Quan Wang
Summary: This paper presents a new method for localizing breathing cracks in engineering structures based on spatially distributed wavelet entropy. The proposed method was validated through numerical analysis and laboratory experiments, proving its effectiveness in crack localization.
ENGINEERING STRUCTURES
(2022)
Article
Multidisciplinary Sciences
Yuqing Liu, Yinghao Li, Haitao Shang, Wen Zhong, Quan Wang, Kibret Mequanint, Chuhong Zhu, Malcolm Xing, Hong Wei
Summary: This study reports a biological adhesive from Andrias davidianus skin secretion that exhibits strong adhesion in wet environments. The adhesive self-assembles into a hydrophobic hydrogel upon contact with water, bonding to wet substrates within seconds. It demonstrates higher shear adhesion and impressive underwater adhesion strength, and shows excellent wet adhesion and hemostasis performance in vivo.
Review
Energy & Fuels
Jiatong Chen, Bin Bao, Jinlong Liu, Yufei Wu, Quan Wang
Summary: This study provides a comprehensive review of research progress in pendulum-type energy harvesting, including single- and double-pendulum energy harvesters, improvement techniques, and design schemes. The dynamic characteristics and optimization methods for enhancing the performance of these energy harvesters are explored. Several potential research directions and applications are also proposed.
Article
Thermodynamics
Bin Bao, Jixiao Tao, Jinlong Liu, Jiatong Chen, Yufei Wu, Quan Wang
Summary: The mechanisms and potential benefits of multi-phase flow-induced vibration energy harvesting have been investigated, and a piezoelectric energy harvester utilizing air-water two-phase flow conditions has been proposed. Experimental results demonstrate that the structure can function as a smart water bottle, collecting energy from human motion and powering wireless IoT nodes.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Engineering, Mechanical
Jinlong Liu, Bin Bao, Jiatong Chen, Yufei Wu, Quan Wang
Summary: This paper proposes a passively adaptive piezoelectric wind energy harvester with a double-airfoil bluff body to enhance performance subjected to time-varying wind velocity. The associated aero-electromechanical model is developed to investigate the influence of attack angle on energy harvesting performance. Numerical results show three working modes that appear under different attack angles: vortex-induced vibration, galloping, and vibration suppression. Experimental validation shows that the proposed harvester outperforms conventional harvesters.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Multidisciplinary Sciences
Yi Zhou, Lunan Yang, Zhen Liu, Yang Sun, Junfei Huang, Bingcheng Liu, Quan Wang, Leyu Wang, Yong Miao, Malcolm Xing, Zhiqi Hu
Summary: We developed a switchable hydrogel film adhesive with pattern-tunable wrinkles to control adhesion, addressing the challenges of on-demand adherence and detachment from tissue surfaces. The generated compressive stress from the bilayer system leads to self-similar wrinkling patterns at different wavelengths, regulating interfacial adhesion. We demonstrated the application of our adhesive in a random skin flap model, showing its potential for tissue sealing, neovascularization promotion, and gradual detachment through dynamic wrinkling pattern transition.
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
