Article
Engineering, Chemical
Timothy MacLucas, Philipp Leonhard-Trautmann, Sebastian Suarez, Frank Muecklich
Summary: The lubricity of coatings made from different types of carbon nanoparticles was investigated. It was found that carbon nanotubes could maintain lubricity against both counter body materials, while carbon onions and carbon nanohorns could only sustain lubricity against one counter body material.
Article
Chemistry, Physical
Shaoqing Rao, Ruizhe Wu, Zhu Zhu, Jinsong Wu, Yao Ding, Liqiang Mai
Summary: Compared with traditional lithium-ion batteries and Li-other group VIA elements batteries, Li-Te batteries have high specific volumetric capacity and superior electrical conductivity, making them important for portable electronics and electric vehicles. However, their Achilles’ heel is the huge volume change and dissolution of polytellurides during cycling. In this research, a cathode material based on Te-filled CNTs was synthesized, which showed improved reaction kinetics and electrochemical reversibility. The use of nanoscale cavities in the CNTs stabilized the polytellurides and enhanced the utilization and cycling stability of the cathodes in Li-Te batteries.
Article
Engineering, Environmental
Julia C. Diel, Dison S. P. Franco, Isaac dos S. Nunes, Hercules A. Pereira, Kelly S. Moreira, Thiago A. de L. Burgo, Edson L. Foletto, Guilherme L. Dotto
Summary: The multi-walled carbon nanotubes modified with metal nanoparticles through green synthesis successfully removed the herbicide glyphosate from water through adsorption. The adsorption process showed high removal efficiency and capacity. Thermodynamic behavior indicated the process is spontaneous and favorable.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Reeya Garg, Mohit Jaiswal, Kaustubh Kumar, Komalpreet Kaur, Bhawna Rawat, Kamalakannan Kailasam, Ujjal K. Gautam
Summary: This study investigates an efficient composite material based on carbon nanostructures and non-noble metals, which exhibits high half-wave potential and electrocatalytic performance. The enhanced activity is attributed to the synergistic effect of high conductivity of carbon nanotubes and active Fe sites. In situ growth of CNTs prevents mass loss during catalyst material synthesis.
Article
Chemistry, Multidisciplinary
Reeya Garg, Mohit Jaiswal, Kaustubh Kumar, Komalpreet Kaur, Bhawna Rawat, Kamalakannan Kailasam, Ujjal K. Gautam
Summary: Achieving high electrocatalytic performance using a composite material of carbon nanotubes and non-noble metals can minimize metal loss and retain a high metal content, leading to efficient electrocatalysis.
Article
Chemistry, Physical
Umedjon Khalilov, Erik C. Neyts
Summary: The study examines the confinement effects inside a carbon nanotube and the competition mechanism between catalyst and feedstock in nanostructure synthesis, focusing on the growth mechanism and structure morphology of encapsulated carbon nanostructures. It is found that the encapsulated nanostructures contain metal atoms and are less stable than their pure counterparts, leading to a study on the purification mechanism of these structures. Overall, this research provides a possible pathway for the controllable synthesis of tubular and planar carbon nanostructures for today's nanotechnology.
Article
Chemistry, Physical
Meiqi Hao, Yuhua Wang, Ding Chen, Dulan Wu, Peiling Li, Haijun Zhang
Summary: High-entropy metallic glass nanoparticles (HEMG-NPs) are promising in sustainable energy development. A general synthesis strategy of implanting alloy targets into a substrate through ion implantation and annealing is proposed. The resulting HEMG-NPs show stable storage and minimized denaturation, making them suitable for multifunctional electrocatalysis. CuCoNiFeZn HEMG-NPs exhibit non-precious single nano-microcatalyst properties and demonstrate potential in sustainable energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Alexander B. Tesler, Stefan Kolle, Lucia H. Prado, Ingo Thievessen, David Boehringer, Matilda Backholm, Bhuvaneshwari Karunakaran, Heikki A. Nurmi, Mika Latikka, Lena Fischer, Shane Stafslien, Zoran M. Cenev, Jaakko V. I. Timonen, Mark Bruns, Anca Mazare, Ulrich Lohbauer, Sannakaisa Virtanen, Ben Fabry, Patrik Schmuki, Robin H. A. Ras, Joanna Aizenberg, Wolfgang H. Goldmann
Summary: This study developed aerophilic titanium alloy surfaces with thermodynamically stabilized plastrons for antifouling applications. The surfaces have long-term stability and effectively reduce adhesion and contamination.
Article
Green & Sustainable Science & Technology
Xiao-Fei Li, Zhi-Gang Wang, Xing-Guo Bao, Jian-Hao Sun, Si-Cun Yang, Ping Wang, Cheng-Bao Wang, Jin-Pu Wu, Xin-Ru Liu, Xiu-Li Tian, Yu Wang, Jian-Peng Li, Yan Wang, Hai-Yong Xia, Pei-Pei Mei, Xiao-Feng Wang, Jian-Hua Zhao, Rui-Peng Yu, Wei-Ping Zhang, Zong-Xian Che, Lin-Guo Gui, Ragan M. Callaway, David Tilman, Long Li
Summary: The study shows that intercropping can increase grain yields and stability, with yield benefits increasing over time. Long-term experiments on soils of differing fertility found that intercropped systems had on average 22% higher grain yields than monocultures and greater year-to-year stability.
NATURE SUSTAINABILITY
(2021)
Article
Chemistry, Multidisciplinary
Tianbao Wang, Can Cui, Yuankai Huang, Yingzheng Fan, Zhiheng Xu, Logan Sarge, Christos Bagtzoglou, Christian Brueckner, Puxian Gao, Baikun Li
Summary: In this study, a template-guided membrane matrix immobilization strategy was used to improve the sensing characteristics and longevity of ISE sensors. The resulting TN-ISE sensor showed enhanced electrochemical stability and minimized ionophore leaching, making it suitable for long-term continuous monitoring of water or wastewater quality.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Chemistry, Multidisciplinary
Bhojkumar Nayak, Ritwik Mondal, Musthafa Ottakam Thotiyl
Summary: In order to address the mismatch between energy availability and energy demand caused by day/night shifts and seasonal variations, extensive efforts have been dedicated to storing renewable energy in various energy storage modules. Compared to conventional batteries, redox flow batteries have an advantage as energy storage modules due to their ability to decouple energy and power. However, interfacial events such as mass transport and electron transfer play pivotal roles in the energy storage and conversion mechanisms of flow batteries.
Review
Chemistry, Multidisciplinary
Jaehyoung Ko, Yongho Joo
Summary: The development of sorting techniques for SWCNTs has led to the replacement of unsorted SWCNTs with electronically enriched SWCNTs in various applications to improve device performance. While research has focused on semiconducting SWCNTs, the potential of metallic SWCNTs has been largely disregarded despite their exceptional properties that complement those of semiconducting SWCNTs. A comprehensive review of research on metallic SWCNTs in the past decade is necessary to highlight their role in various applications.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Physical
Giovanni Scala, Mathilde N. Delaval, Sourav P. Mukherjee, Antonio Federico, Timur O. Khaliullin, Naveena Yanamala, Liliya M. Fatkhutdinova, Elena R. Kisin, Dario Greco, Bengt Fadeel, Anna A. Shvedova
Summary: The study revealed that MWCNTs exert epigenetic effects in the lungs, potentially driving subsequent gene expression changes. Muscle contraction, immune system/inflammation, and extracellular matrix pathways were the most affected pathways.
Article
Physics, Multidisciplinary
F. Sadeghi
Summary: This study investigates the mechanics of lysozyme enzyme inside different types of nanotubes and examines the effectiveness of various nanotube materials as enzyme carriers. The results show that titanium dioxide nanotube is the most favorable candidate for lysozyme delivery and storage. The study provides valuable insights for enzyme immobilization and storage using nanotubes.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Review
Chemistry, Multidisciplinary
Aris Chatzichristos, Jamal Hassan
Summary: Confined water inside carbon nanotubes has unique properties and wide applications. This review provides an overview of the properties of water in carbon nanotubes, based on nuclear magnetic resonance and molecular dynamics studies. It explains contradictory results in the literature and identifies debatable issues, open problems, and future research directions.
Article
Nanoscience & Nanotechnology
Narelle Brack, Michelle J. S. Spencer, Benjamin Mapleback, Andy I. R. Herries, Peter Kappen, Andrew N. Rider
Summary: Graphitic nanoplatelets (GNPs) were treated using an ultrasonicated ozonolysis procedure to produce stable aqueous dispersions for thin film deposition using electrophoretic deposition. Zero valence (ZV) iron nanocubes were then coated onto the thin GNP films using pulsed electrodeposition. The changing magnetic character of the ferromagnetic-graphitic hybrid material was related to the nucleation density and growth of the ZV-iron nanocubes. ZV-iron was adsorbed preferentially at the oxygen sites of the GNPs, displacing oxygen groups in some configurations. Transmission electron microscopy studies confirmed that ZV-iron growth nucleated at the edges of the graphite nanoplatelets, and the magnetism of the hybrid material was affected by the convergent crystalline grain boundaries formed between adjacent ZV-iron nanocubes.
Article
Chemistry, Analytical
Wil Gardner, David A. Winkler, Suzanne M. Cutts, Steven A. Torney, Geoffrey A. Pietersz, Benjamin W. Muir, Paul J. Pigram
Summary: Feature extraction algorithms are important for reducing data dimensionality, but most methods do not consider spatial information. This study introduces a convolutional autoencoder (CNNAE) specifically designed for hyperspectral ToF-SIMS imaging data, which incorporates pixel neighborhood information through convolutional layers. Compared to other methods, the CNNAE produces features with higher contrast and autocorrelation, accurately representing histologically recognizable features in the data. Additionally, the extension of CNNAE to 3D ToF-SIMS images provides a proof of principle for analyzing more complex 3D datasets.
ANALYTICAL CHEMISTRY
(2022)
Article
Mechanics
Mathew W. Joosten, Michael B. Neave, Andrew N. Rider, Russell J. Varley
Summary: This study quantifies the effectiveness of rapidly repairing sandwich structures using 3D printed continuous fibre composite patches. The experiments show that this repair process can fully restore the structural strength of damaged sandwich components.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Chemical
Jojibabu Panta, Y. X. Zhang, Andrew N. Rider, John Wang
Summary: In this study, the mechanical and fracture performance of a newly developed high-performance nano composite adhesive was experimentally characterized. The results showed that the addition of ozone-functionalized graphene nanoplatelets and triblock copolymers greatly improved the lap shear strength and ultimate shear strain of the adhesive joints, while slightly reducing the tensile butt joint strength. Furthermore, the incorporation of nanomaterials significantly increased the fracture toughness of the adhesive.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2022)
Article
Chemistry, Multidisciplinary
Benjamin Mapleback, Vu Dao, Lachlan Webb, Andrew Rider
Summary: Composite structural supercapacitors (SSC) were manufactured using aerospace-grade composite materials and CNT mat electrodes. A new design methodology was explored where the supercapacitor electrolyte was localized within the composite structure, achieving good electrochemical performance within the active region, whilst maintaining excellent mechanical performance elsewhere. The morphology of these localized SSC designs was characterized and found to be directly correlated with both electrochemical and mechanical performance. One configuration using an ionogel with an ionic liquid electrolyte achieved high energy density and corresponding short beam shear strength, while another configuration with only an ionic liquid electrolyte also achieved high energy density and shear strength. Both configurations provide a combined energy and strength superior to previous results in the literature for composite SSCs.
Article
Engineering, Multidisciplinary
Jojibabu Panta, Andrew N. Rider, John Wang, C. H. Yang, R. Hugh Stone, Ambrose C. Taylor, Narelle Brack, Scott Cheevers, Y. X. Zhang
Summary: New high-performance epoxy-based nanocomposite adhesive materials were developed by utilizing nanomaterials to enhance bond strength, particularly at elevated temperatures. The nanocomposites, which combined a high glass transition temperature epoxy adhesive with functionalized carbon nanotubes and a phase-separated copolymer, showed significant improvement in lap shear strength compared to unmodified epoxy, as well as enhanced plastic deformation during crack propagation.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Analytical
Sarah E. Bamford, Dilek Yalcin, Wil Gardner, David A. Winkler, Thomas M. Kohl, Benjamin W. Muir, Shaun Howard, Eric A. Bruton, Paul J. Pigram
Summary: The self-organizing map with relational perspective mapping (SOM-RPM) is an unsupervised machine learning method used for visualizing and interpreting high-dimensional hyperspectral data. In this study, SOM-RPM was applied to stitched ToF-SIMS datasets to provide a direct comparison in both 2D and 3D. The quantitative assessment of annealing-induced chemical breakdown trends was conducted on spin-coated polyaniline (PANI) films, revealing differences in peak intensity ratios.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Manufacturing
Weeliam Khor, Anil R. Ravindran, Francesco Ciampa, Raj B. Ladani, Manatsawee Limprapuwiwattana, Pete Whitton, Andrew D. Foreman, Charlotte Meeks, Alan Steele, Tim Cooper, Andrew Rider, Adrian P. Mouritz
Summary: This paper presents a novel approach to improving the structural properties and damage tolerance of fiber-reinforced polymer composite joints by using tufting with shape memory alloy (SMA) filaments. T-shaped joints made of carbon-epoxy composite material were reinforced with thin SMA (Ni-Ti nitinol) tufts. Experimental testing and finite element modeling showed that the ultimate load, ultimate displacement, and absorbed energy capacity of the T-joints increased with the areal density of SMA tufts. By using SMA tufting, improvements of over 110% in strength and 450% in absorbed energy capacity were achieved.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Composites
Benjamin Tynan, Yang Zhou, Sonya A. Brown, Liming Dai, Andrew N. Rider, Chun H. Wang
Summary: Structural supercapacitors have the potential to provide both structural integrity and energy storage for electric-powered vehicles and mobile robots. However, the development of mechanically strong and stiff electrodes is a challenge. In this study, we report a technique for depositing manganese dioxide uniformly onto carbon nanotube mats, resulting in multifunctional supercapacitor electrodes with enhanced mechanical and electrochemical properties. These high-performance electrodes can significantly improve the energy density of supercapacitors without compromising power density, making them promising for practical applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Medicinal
Yiwen Lu, Dilek Yalcin, Paul J. Pigram, Lewis D. Blackman, Mario Boley
Summary: We developed a data-driven methodology based on statistical machine learning for the probabilistic modeling of PISA morphologies. The model showed good prediction performance for mixtures of known monomer pairs but weaker performance for extrapolation to new monomer combinations. However, it still achieved nontrivial prediction performance and was able to select a smart set of experiments for creating empirical phase diagrams.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Materials Science, Coatings & Films
Wil Gardner, David A. Winkler, David L. J. Alexander, Davide Ballabio, Benjamin W. Muir, Paul J. Pigram
Summary: In this study, two different ToF-SIMS imaging datasets were used to evaluate the impact of data preprocessing methods and SOM hyperparameters on the performance of SOM. It was found that preprocessing is generally more important than hyperparameter selection, and there are complex interactions between different parameters. The results of this study are important for understanding the effects of data processing on hyperspectral imaging data.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Analytical
Sevvandi Kandanaarachchi, Wil Gardner, David L. J. Alexander, Benjamin W. Muir, Philippe A. Chouinard, Sheila G. Crewther, David J. Scurr, Mark Halliday, Paul J. Pigram
Summary: This study investigated six different computational methods for tiling artifact removal in ToF-SIMS imaging. The results show that there is no universally acceptable method and the effectiveness of the artifact removal method depends on the specific characteristics of the data set analyzed.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Norton G. West, Sarah E. Bamford, Paul J. Pigram, Jisheng Pan, Dong-Chen Qi, Adam Mechler
Summary: This study demonstrates hierarchical self-assembly using metal coordinating helical beta-oligoamides, leading to the formation of specific morphologies. By controlling different metals and metalates, the design of metallosupramolecular frameworks is achieved, establishing a platform technology for functional thin layer materials.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Analytical
Wil Gardner, David A. Winkler, Suzanne M. Cutts, Steven A. Torney, Geoffrey A. Pietersz, Benjamin W. Muir, Paul J. Pigram
Summary: Feature extraction algorithms are important for reducing data dimensionality, but most methods do not consider spatial information. This study introduces a convolutional autoencoder algorithm that can be applied to hyperspectral ToF-SIMS imaging and achieves better results.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Andrew D. M. Charles, Andrew N. N. Rider, Sonya A. A. Brown, Chun-Hui Wang
Summary: The use of magnetic field alignment in the production of high aspect ratio magnetostrictive flakes has been investigated, resulting in an increase in strain efficiency in the composites. The effects of particle aspect ratio, alignment, and volume fraction on the magnetostriction of the composites have been systematically studied. Experimental observations have been used to create a fully-coupled multi-physics model, providing new insights into the contributions of these variables to magnetostrictive composites for sensing, actuation, and transducer applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)