Article
Materials Science, Multidisciplinary
W. M. Moslem, A. S. El-Said, R. E. Tolba, H. Bahlouli
Summary: Ion beam technology is efficiently used to modify the properties of nanomaterials. This study focuses on the structural modifications of carbon nanotubes using highly energetic heavy ions. The irradiation with high ion fluence induces significant topographic changes along the nanotubes. A hydrodynamic fluid model is introduced to explain the observed results by investigating the ion-induced plasma. The calculations show a qualitative coincidence between the evolution of the periodic electric potential and the observed broken nanostructured segments along the nanotube.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Thomas R. Durrant, Al-Moatasem El-Sayed, David Z. Gao, Thomas Rueckes, Gennadi Bersuker, Alexander L. Shluger
Summary: The increase in resistance at carbon nanotube junctions is the bottleneck for charge transport, and models can be used to predict the current transport characteristics of different carbon nanotube junctions.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Chemistry, Physical
Shai R. Vardeny, Alan Phillips, Kira A. Thurman, Z. Valy Vardeny, Jeffrey L. Blackburn
Summary: This article investigates the mid-infrared charge signatures of heavily p-type doped polymer-wrapped single-walled carbon nanotubes (s-SWCNTs). The study finds that hole charge carriers induce strong Fano anti-resonances in mid-infrared transmission spectra and analyzes the relative intensities, energies, and sources of all observed anti-resonances.
Article
Chemistry, Multidisciplinary
Timofei Eremin, Valentina Eremina, Yuri Svirko, Petr Obraztsov
Summary: Covalent functionalization of single-walled carbon nanotubes (SWCNTs) can greatly enhance their photoluminescent (PL) brightness, making them suitable for infrared light emitters.
Article
Chemistry, Physical
Amirmostafa Amirjani, Ted V. Tsoulos, Sayyed Hashem Sajjadi, Alessandra Antonucci, Shang-Jung Wu, Giulia Tagliabue, Davoud Fatmehsari Haghshenas, Ardemis A. Boghossian
Summary: In this study, the plasmonic effects of Ag and Au nanoparticles with different geometries on the fluorescence intensity of single-stranded DNA-wrapped single-walled carbon nanotubes (ssDNA-SWCNTs) were systematically investigated. Chirality-dependent fluorescence enhancement was observed, which varied with nanoparticle shape and material. Au nanorods increased the fluorescence of (7, 5) and (7, 6) chiralities by 80% and 60% respectively, while Ag nano triangles increased the fluorescence of (7, 5) and (6, 5) chiralities by 200% and 240% respectively. Finite element modeling confirmed contributions from a plasmon-induced localized increase in electron density and radiative recombination of dark exciton states from the resulting electromagnetic field.
Review
Energy & Fuels
Jin-Myung Choi, Jiye Han, Tushar Rane, Soyeon Kim, Ick Soo Kim, Il Jeon
Summary: This review discusses the fundamentals of utilizing SWCNTs in PSCs, including their characteristics as electron-transporting layer, hole-transporting layer, photoactive layer, and interfacial materials. It also presents strategies to improve PSCs performance through defect control and enhancement of electrical and morphological properties.
JOURNAL OF PHYSICS-ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yue Yu, Yifan Zhao, Shouheng Li, Chao Zhao, Weiming Liu, Shanshan Wang, Feng Ding, Jin Zhang
Summary: Developing a convenient method to determine the complete structure of single-walled carbon nanotubes (SWNTs) is important for achieving controlled growth of this nanomaterial. This study presents a simple strategy to discriminate chirality and characterize the handedness-selective growth of nanomaterials. By constructing artificially aligned SWNTs/graphene (Gr) vertical heterostructures, the 3D handedness information of SWNTs is transformed to projected 2D space using transmission electron microscopy. The work also explores the interfacial alignment between SWNTs and Gr and its effects on the electronic structures.
Article
Chemistry, Multidisciplinary
Quan Sha, Dongwei Cao, Jiaxin Wang, Hanbin Hu, Jiaxin Li, Wei Chen, Lei He, Graham N. Newton, Yu-Fei Song
Summary: Host-guest interaction can alter the properties of composite materials. This study reveals the effect of the host on the electronic structure of guest molecules. Encapsulating polyoxometalates (POMs) in single-walled carbon nanotubes (SWNT) leads to structural changes and electron reconfiguration in POMs, which enhances charge density and accelerates electron and ion transport. This improves the electrochemical performance for sodium ion storage.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Maya D. D. Lambreva, Parveen Akhtar, Gabor Sipka, Andrea Margonelli, Petar H. H. Lambrev
Summary: The distinct properties of single-walled carbon nanotubes (SWCNTs) have attracted research interest in their utilization in photosynthetic biohybrid setups. By studying the effects of SWCNTs on various photosynthetic components, we found that they induce quenching of chlorophyll fluorescence in thylakoid membranes, without affecting membrane integrity. However, no direct excitation energy exchange was observed between SWCNTs and pigment-protein complexes. The observed interactions could potentially be exploited to enhance the efficiency of solar energy conversion in natural biohybrid systems.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Karolina Z. Milowska, Maciej Krzywiecki, Mike C. Payne, Dawid Janas
Summary: Carbon nanomaterials such as graphene and carbon nanotubes have attracted significant interest due to their extraordinary properties, with the potential to play a key role in future applications. The sensitivity of carbon nanostructures to chemical stimuli allows for enhanced charge propagation capabilities, as seen in the impact of bromine addition on the electrical and thermoelectric properties of single-walled carbon nanotube films. Experimental results show a two orders of magnitude enhancement in thermoelectric capabilities through sonication-assisted introduction of Br2 into the SWCNT network, with computational analyses revealing the dopant's influence on electronic and charge transport properties.
MATERIALS & DESIGN
(2022)
Article
Mathematics, Interdisciplinary Applications
Zhen Wang, Weipeng Hu
Summary: This paper investigates the resonance behavior of carbon nanotube sensors under various perturbations, exploring the dynamic stability and complex behavior of nonlinear systems in nanotube devices. Theoretical analysis and numerical simulations are used to verify the research results.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Multidisciplinary Sciences
Mazin A. Zamzami, Gulam Rabbani, Abrar Ahmad, Ahmad A. Basalah, Wesam H. Al-Sabban, Saeyoung Nate Ahn, Hani Choudhry
Summary: In this work, the fabrication and characterization of a carbon nanotube field-effect transistor (CNT-FET) sensor were reported. CNTs were used as the sensing layer between the source-drain electrodes. The CNT-FETs were fabricated using conventional photolithography and lift-off techniques. The structural morphology of the deposited CNT was confirmed through scanning electron microscopy (SEM) imaging. The transfer curves and the characteristics of the source-drain current (IDS) versus gate voltage (VGS) were analyzed to evaluate the performance of the fabricated CNT-FET devices. The results showed that CNT-FET-based sensors have the advantages of low cost fabrication, quick response, increased sensitivity, small size, and high flexibility, making them suitable for a wide range of biosensing applications.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Min-Ken Li, Adnan Riaz, Martina Wederhake, Karin Fink, Avishek Saha, Simone Dehm, Xiaowei He, Friedrich Schoeppler, Manfred M. Kappes, Han Htoon, Valentin N. Popov, Stephen K. Doom, Tobias Hertel, Frank Hennrich, Ralph Krupke
Summary: This work demonstrates that electroluminescence excitation is selective towards neutral defect-state configurations with the lowest transition energy, which, combined with gate control, leads to high spectral purity.
Article
Engineering, Environmental
Qianru Wu, Lu Qiu, Lili Zhang, Huaping Liu, Ruixue Ma, Piao Xie, Runluan Liu, Pengxiang Hou, Feng Ding, Chang Liu, Maoshuai He
Summary: A newly developed Co-MgO catalyst was found to enable the growth of specific types of carbon nanotubes by forming stabilized Co nanoparticles at high temperatures. The selective growth was found to be temperature-dependent and correlated with the relative thermodynamic stability of the carbon nanotube nuclei at different temperatures.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Physical
Marianna Kharlamova, Maria G. Burdanova, Maksim Paukov, Christian Kramberger
Summary: This review focuses on the importance of synthesizing high-quality chirality-pure single-walled carbon nanotubes, as well as research directions such as chirality-selective synthesis, sorting of SWCNTs, and applications of separated SWCNTs in various fields.
Article
Engineering, Mechanical
Elias A. Toubia, Sadra Emami, Donald Klosterman
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2019)
Article
Chemistry, Applied
Evan M. Forman, Amineh Baniani, Lei Fan, Kirk J. Ziegler, Erkang Zhou, Fengyi Zhang, Ryan P. Lively, Sergey Vasenkov
MICROPOROUS AND MESOPOROUS MATERIALS
(2019)
Review
Materials Science, Composites
James Magato, Donald Klosterman
JOURNAL OF COMPOSITE MATERIALS
(2020)
Article
Engineering, Multidisciplinary
Alexander B. Morgan, Vladimir Benin, Donald A. Klosterman, Abdulhamid Bin Sulayman, Mustafa Mukhtar, Mary L. Galaska
JOURNAL OF FIRE SCIENCES
(2020)
Article
Engineering, Chemical
Evan M. Forman, Amineh Baniani, Lei Fan, Kirk J. Ziegler, Erkang Zhou, Fengyi Zhang, Ryan P. Lively, Sergey Vasenkov
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Materials Science, Composites
Donald Klosterman, Charles Browning, Issa Hakim, Kyle Lach
Summary: This study aimed to revisit the effect of porosity in fiberglass composites and tried different methods to create controlled voids. The water spray method proved to produce significantly different levels of porosity, but required drying after curing. Voids influenced the horizontal propagation of cracks between layers, but did not act as initiation sites for failure.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Chemistry, Physical
Gibson P. Scisco, Katherine Haynes, Kevin S. Jones, Kirk J. Ziegler
JOURNAL OF POWER SOURCES
(2020)
Article
Electrochemistry
Gibson P. Scisco, Mark E. Orazem, Kirk J. Ziegler, Kevin S. Jones
Summary: Ordered carbon nanotube arrays were used as electrodes for supercapacitors with neat ionic liquid electrolyte, and uncatalyzed chemical vapor deposition may lead to blocked CNTs and reduced active area. The increased resistivity of the electrolyte within the pores may be due to hydrophilic surface functionalities on the surface of the CNTs.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Sarathy K. Gopalakrishnan, Akash Ganesh, Chun-Chieh Wang, Matthew Mango, Kirk J. Ziegler, Ranga Narayanan
Summary: Small disturbances at an interface can lead to well-defined patterns, but nonlinear interactions can obscure the dominant wavelength in diffusion-limited system instabilities. A microfluidic cell design is presented to mitigate nonlinear effects, enabling enhanced diffusional effects and quasi-1D electrodeposition of patterns. An automated image analysis routine converts instability patterns into height profiles and objectively extracts wavelengths, with a custom filter used to identify noise and select dominant wavelengths. The results show that the dominant wavelengths in nearly all experiments were within 5% of theoretical values, with two-thirds within 1%.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Civil
Elias A. Toubia, Abdalla Alomari, Alexander B. Morgan, Donald Klosterman
Summary: This experimental study evaluates the residual strengths and failure mechanisms of bolted double lap pultruded joints in regions of low-to-moderate heat induced exposure, finding that plate thickness and load direction are key parameters influencing the residual strength and failure modes of thermally degraded pultruded joints.
THIN-WALLED STRUCTURES
(2021)
Article
Chemistry, Physical
Gibson P. Scisco, Mark E. Orazem, Kirk J. Ziegler, Kevin S. Jones
Summary: The capacitances of electrochemical systems determined from cyclic voltammetry (CV) are affected by the constant-phase element (CPE) behavior, which can be illustrated by simulated circuits. The capacitance extracted from CV follows a power law relationship with sweep rate, and a critical sweep rate can be defined by comparing CV-obtained capacitance with that from electrochemical impedance spectroscopy (EIS) data, allowing for an effective time constant formulation for the circuits. Sweep rates at least two orders of magnitude below the critical rate should be used in CV to mitigate the influence of the system's time constant on the measured capacitance. Reporting CPE parameters R, Q, and alpha is recommended for more accurate comparisons of supercapacitors rather than capacitance vs. sweep rate data from CV measurements.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Nicholas Schwartz, Jason Harrington, Kirk J. Ziegler, Philip Cox
Summary: The effects of gas diffusion layer and electrode microstructure on the performance of a membrane electrode assembly were evaluated. Different GDL materials were characterized and the diffusion of reactants through the GDL materials was measured. Increasing the thickness of the MPL and hydrophobicity within the GDL improved the performance of the assembly.
Article
Nanoscience & Nanotechnology
Gregory Chester, Anna Skinner, Anthony Villa-Garcia, Kirk J. Ziegler, Justin J. Hill
Summary: A simple, scalable, and reproducible method is used to decorate carbon nanotubes (CNTs) with metal nanoparticles (NPs), leading to significant improvements in high-cycle fatigue strength in metal matrix composites (MMCs). An inverse correlation between CNT loading and tensile strength was observed, showing potential for further enhancing MMC strength.
Article
Materials Science, Multidisciplinary
Bruce E. Brinson, Varun Shenoy Gangoli, Anjli Kumar, Robert H. Hauge, W. Wade Adams, Andrew R. Barron
C-JOURNAL OF CARBON RESEARCH
(2019)
Article
Chemistry, Multidisciplinary
Muhammad Anas, Yang Zhao, Mohammad A. Saed, Kirk J. Ziegler, Micah J. Green
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.
