Article
Chemistry, Physical
Chenmaya Xia, Daqi Zhang, Henan Li, Sheng Li, Haoming Liu, Li Ding, Xiyan Liu, Min Lyu, Ruoming Li, Juan Yang, Yan Li
Summary: SWNTs can be used to construct reusable SERS substrates with single molecule sensitivity and preservation of intrinsic properties, utilizing polyhedral gold nanocrystals to create effective hot spots. Using SWNTs to build SERS substrates may become a powerful strategy in various single molecule studies.
Article
Chemistry, Multidisciplinary
Paul Finnie, Jianying Ouyang, Jeffrey A. Fagan
Summary: In this study, the Raman excitation spectra of chirality-pure single-walled carbon nanotubes (SWCNTs) were explored using a full spectrum Raman excitation mapping technique. The results showed that the scattering intensity varied with sample type and phonon energy. Different phonon modes had distinct excitation profiles, with some modes exhibiting sharp resonance profiles and strong resonances. Conventional fixed wavelength Raman spectroscopy might miss these effects due to the significant intensity changes observed for small excitation wavelength variations. The approach used in this study provides a clear path towards improving the rigor and quantification of resonance Raman scattering intensity measurements.
Article
Chemistry, Multidisciplinary
Ming Liu, Kaoru Hisama, Yongjia Zheng, Mina Maruyama, Seungju Seo, Anton Anisimov, Taiki Inoue, Esko Kauppinen, Susumu Okada, Shohei Chiashi, Rong Xiang, Shigeo Maruyama
Summary: Coaxial synthesis of single-walled and multiwalled molybdenum disulfide (MoS2) nanotubes on boron nitride nanotubes (BNNTs) was achieved by removing single-walled carbon nanotubes (SWCNTs) from heteronanotubes. Single-walled MoS2 nanotubes exhibit direct bandgap structure around 6-7 nm diameter, with a transition from indirect to direct gap above 5.2 nm. Presence of SWCNTs in BNNTs and single-walled MoS2 nanotubes significantly quenches the PL signal.
Article
Nanoscience & Nanotechnology
Mitchell Gravely, Aidan Kindopp, Lauren Hubert, Matthew Card, Aceer Nadeem, Christopher Miller, Daniel Roxbury
Summary: The non-covalent biomolecular functionalization of fluorescent single-walled carbon nanotubes (SWCNTs) has led to their extensive use in in vitro and in vivo sensing and imaging applications. However, it has been observed that these SWCNTs tend to aggregate in protein-containing environments before interacting with cells at the nanobiointerface. This study shows that initially aggregated SWCNTs do not further accumulate within subcellular locations and that SWCNTs with a low degree of aggregation can induce significant deleterious effects on cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Mourad Berd, Kamal Moussi, Youcef Aouabdia, Lotfi Benchallal, Ghiles Chahi, Badis Kahouadji
Summary: This study investigated the treatment of single-walled carbon nanotubes with strong HClO4 acid through experimental and computational analysis, showing significant changes in the behavior of metallic nanotubes and their conversion to semiconductors. The DFT calculations confirmed the experimental results by revealing the generation of an energy gap in the electronic structure of metallic carbon nanotubes due to the adsorption of chlorine atoms.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Marianna Kharlamova, Christian Kramberger
Summary: The growth dynamics and mechanism of different-chirality inner tubes of carbon nanotubes were studied using in situ annealing and Raman spectroscopy measurements. It was found that the growth process consists of two successive stages and the activation energies vary with tube diameter and metal type.
Article
Materials Science, Multidisciplinary
Bo Li, Shufeng Li, Kaiyuan Shi, Xin Zhang, Shenghui Yang, Deng Pan, Lei Liu, Yanli Nan, Xiang Zhu, Xiaolong Song, Lei Su, Guoqiang Yang
Summary: This study investigates the structural properties of SWNT bundles under different dynamic pressures, including phase transition, recovery dynamics, and energy dissipation mechanisms. The results show that the structural behaviors of SWNTs under dynamic pressure differ from those under static pressure, and they exhibit high structural stability.
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, Physical
Lotfi Sellaoui, Carlos E. Schnorr, Fatma Dhaouadi, Sonia Taamalli, Florent Louis, Abderrahman El Bakali, Guilherme L. Dotto, Luis F. O. Silva, Abdemottaleb Ben Lamine, Sami Rtimi, Alessandro Erto
Summary: The adsorption behavior of Cd2+, Pb2+, and Hg2+ ions onto COOH functionalized multi-walled carbon nanotubes (MWCNTs) and its dependence on temperature (298-328 K) were investigated. The adsorption showed exothermic behavior with a decrease in adsorption capacity as temperature increased. A saturation value of adsorption capacity was reached, indicating the possible formation of a monolayer on the adsorbent surface. Statistical physics-based adsorption models were tested, and the monolayer with double functional groups was found to be the best fitting model. The analysis of model parameters revealed that the adsorption of the investigated metal ions was multi-cationic, with each functional group capable of adsorbing multiple ions simultaneously. An increase in temperature led to a decrease in the density of functional groups, and the adsorption capacity on the first functional group was higher than that on the second for Cd2+ and Pb2+ ions, while the opposite result was observed for Hg2+ ions. The adsorption energies for both functional groups were determined, falling within the typical range of physical adsorption.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Thiago A. Moura, Wellington Q. Neves, Rafael S. Alencar, Y. A. Kim, M. Endo, Thiago L. Vasconcelos, Deyse G. Costa, Graziani Candiotto, Rodrigo B. Capaz, Paulo T. Araujo, Antonio G. Souza Filho, Alexandre R. Paschoal
Summary: The unique electronic and vibrational properties of linear carbon chains (LCCs) have attracted attention recently. Raman spectroscopy has been widely used to identify LCC and study its properties. This study investigates the optical resonance window of LCCs encapsulated by multi-walled carbon nanotubes (MWCNTs) and a Raman signature assigned to the LCC's longitudinal acoustic phonon mode. First-principles calculations support the conclusions.
Article
Chemistry, Multidisciplinary
Sung-Il Jo, Goo-Hwan Jeong
Summary: The study shows that the synthesis yield of SWNTs in a horizontal CVD system depends on the position of the samples in the reactor, with the highest yield obtained in the rear region.
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
Chemistry, Multidisciplinary
Quanfeng He, Lanping Zeng, Lianhuan Han, Matthew M. Sartin, Juan Peng, Jian-Feng Li, Alexander Oleinick, Irina Svir, Christian Amatore, Zhong-Qun Tian, Dongping Zhan
Summary: Studies have shown that the adsorption of atomic hydrogen on single layer graphene can effectively store hydrogen and is suitable for solutions involving hydrogen fuel cells for vehicles. Utilizing a Pt-electrocatalyzed spillover-surface diffusion-chemisorption mechanism, hydrogenation of graphene can be carried out under mild conditions, demonstrating high storage capacity and stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Reza J. Kashtiban, Maria G. Burdanova, Andrij Vasylenko, Jamie Wynn, Paulo V. C. Medeiros, Quentin Ramasse, Andrew J. Morris, David Quigley, James Lloyd-Hughes, Jeremy Sloan
Summary: The formation of one-dimensional CsI chains and helical chains within carbon nanotubes of different diameters has been demonstrated, showing varying effects on the encapsulating tubes' structure and electronic properties. Analysis using density-functional theory and Bader analysis was conducted to understand the observed changes.
Article
Chemistry, Physical
Tian Tian, Huan Yin, Luoxi Zhang, Mingkui Zhu, Defu Ma, Feng Shao, Nantao Hu, Zhi Yang, Yafei Zhang, Yanjie Su
Summary: This study investigates the interfacial charge transfer between gas molecules and SWCNTs using the Raman shift of the 2D peak in SWCNTs. An exponential relationship between the 2D peak position and NO2 concentration has been established, providing a simple method to evaluate charge transfer and gas molecule adsorption state.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Federica Valentini, Pasquino Pallecchi, Michela Relucenti, Orlando Donfrancesco, Gianluca Sottili, Ida Pettiti, Valentina Mussi
Summary: The study characterized laboratory-synthesized CaCO3 nanoparticles and their nanodispersion in 1,4-butanediol, and tested their effectiveness on the surface of Pietraforte stone in Florence, Italy. The CaCO3 nanodispersion was found to be an effective restorative agent that prevents water infiltration, reduces stone disruption, and promotes consolidation without altering the stone's appearance.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Cosmin Butnarasu, Nadia Barbero, Sonja Visentin
Summary: This study investigated the interaction between ctDNA and diclofenac, and pentamidine by using steady-state and stopped-flow fluorescence methods. The association and dissociation rate constants were calculated from stopped-flow kinetic measurements, which were then used to determine the equilibrium dissociation binding constant (K-D) and compared with values obtained from steady-state fluorescence results.
MONATSHEFTE FUR CHEMIE
(2022)
Article
Spectroscopy
Giorgia Chinigo, Ana Gonzalez-Paredes, Alessandra Gilardino, Nadia Barbero, Claudia Barolo, Paolo Gasco, Alessandra Fiorio Pla, Sonja Visentin
Summary: In this study, two polymethine dyes based on the benzoindolenine ring were successfully incorporated into solid lipid nanoparticles to improve their solubility and stability in aqueous solutions. The obtained nanoparticles not only preserved the spectroscopic properties of the dyes but also showed good biocompatibility and cellular uptake. The phototoxicity assay revealed that the loaded nanoparticles exhibited higher photoactivity compared to the free dye.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Engineering, Biomedical
Cosmin Butnarasu, Paola Petrini, Francesco Bracotti, Livia Visai, Giuseppe Guagliano, Alessandra Fiorio Pla, Ettore Sansone, Sara Petrillo, Sonja Visentin
Summary: Mucosomes, a novel class of glycosylated nanoparticles based on mucin, are introduced to overcome the complex barrier of mucus during transmucosal drug delivery. They improve drug absorption and residence time on mucosal tissues and can be loaded with different physicochemical properties. Mucosomes exhibit good mucoadhesive properties and have shown no adverse effects in in vitro and in vivo tests.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Adriano Diaz Fattorini, Caroline Cheze, Inaki Lopez Garcia, Christian Petrucci, Marco Bertelli, Flavia Righi Riva, Simone Prili, Stefania M. S. Privitera, Marzia Buscema, Antonella Sciuto, Salvatore Di Franco, Giuseppe D'Arrigo, Massimo Longo, Sara De Simone, Valentina Mussi, Ernesto Placidi, Marie-Claire Cyrille, Nguyet-Phuong Tran, Raffaella Calarco, Fabrizio Arciprete
Summary: In this study, a Ge-rich Ge-Sb-Te alloy was deposited on silicon substrates using physical vapor deposition. The electronic properties of the alloy were investigated, and it was found to have similar electrical parameters to conventional alloys but with enhanced thermal stability.
Review
Pharmacology & Pharmacy
Roberto Canaparo, Federica Foglietta, Nadia Barbero, Loredana Serpe
Summary: Sonodynamic therapy is a non-invasive cancer treatment that uses sonosensitizers and ultrasound activation. However, the underlying mechanisms of the therapeutic activity are not well understood, limiting its clinical application. Physicochemical properties and cellular localization of sonosensitizers play important roles in predicting their bio-effects, and nanomedicine has shown potential in enhancing specific sonodynamic effects.
ADVANCED DRUG DELIVERY REVIEWS
(2022)
Article
Physics, Applied
Walter Fuscaldo, Sara De Simone, Dimitre Dimitrov, Vera Marinova, Valentina Mussi, Romeo Beccherelli, Dimitrios C. Zografopoulos
Summary: This research presents a method for characterizing the THz conductivity of graphene on metal-backed substrates and validates its effectiveness through experiments. This method allows for rapid and accurate nondestructive characterization of graphene sheets, which can be integrated into the production of components such as THz absorbers, lenses, and antennas.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Marco Bertelli, Adriano Diaz Fattorini, Sara De Simone, Sabrina Calvi, Riccardo Plebani, Valentina Mussi, Fabrizio Arciprete, Raffaella Calarco, Massimo Longo
Summary: The morphological, structural, and electrical properties of as-grown and annealed Ge2Sb2Te5 (GST) layers on flexible polyimide were investigated. The results showed that the GST layers undergo a structural transformation from amorphous to crystalline phases at around 140 degrees C. The crystalline GST layers exhibited good vibrational and electrical properties.
Review
Chemistry, Organic
Achille Antenucci, Stefano Nejrotti, Maria Jesus Moran Plata, Nicole Mariotti, Nadia Barbero
Summary: Time, energy, and cost saving, waste reduction, and health and safety preservation are key milestones in green chemistry. This study provides a critical overview of non-conventional and sustainable approaches in polymethine dye synthesis, applying the twelve principles of green chemistry as guidelines. Additionally, the E factor and EcoScale score are evaluated to provide numerical parameters for impact assessment.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Cosmin Butnarasu, Carlotta Pontremoli, Maria Jesus Moran Plata, Nadia Barbero, Sonja Visentin
Summary: Mucins have been identified as important biomarkers of adverse prognosis in several types of cancers. This study explores the use of squaraine fluorescent probes for the detection of mucin, with the squaraine (S6) bearing bromine and C4 aliphatic chains showing the highest fluorescence turn-on and affinity for mucin. The selectivity of S6 for mucin has been highlighted through evaluation in the presence of serum and other site-specific proteins.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Martin Kretschmer, Rafael Cena-Diez, Cosmin Butnarasu, Valentin Silveira, Illia Dobryden, Sonja Visentin, Per Berglund, Anders Sonnerborg, Oliver Lieleg, Thomas Crouzier, Hongji Yan
Summary: Mucus is a self-healing gel that provides protection by binding to and removing viruses, with bovine submaxillary mucins forming gels that exhibit lubricating properties and reduce HIV-1 and HSV-2 infectivity.
Article
Chemistry, Multidisciplinary
Alex Boschi, Alessandro Kovtun, Fabiola Liscio, Zhenyuan Xia, Kyung Ho Kim, Samuel Lara Avila, Sara De Simone, Valentina Mussi, Carlo Barone, Sergio Pagano, Marco Gobbi, Paolo Samori, Marco Affronte, Andrea Candini, Vincenzo Palermo, Andrea Liscio
Summary: Graphene and related 2D material (GRM) thin films consist of randomly distributed 3D assembly of 2D nanosheets interacting via van der Waals forces. The charge transport mechanisms in GRM thin films near the metal-insulator transition (MIT) are studied, with a focus on defect density and nanosheet arrangement. A general model is developed to describe the multiscale nature of charge transport in GRM thin films using two prototypical nanosheet types with different defect density and crystallinity.
Article
Chemistry, Multidisciplinary
Eleonora Conterosito, Valentina Toson, Enrico Boccaleri, Diego Antonioli, Marco Milanesio, Luca Palin, Claudia Barolo, Nadia Barbero, Simone Galliano, Valentina Gianotti
Summary: Low-cost photoactive hybrid materials for light management, based on neutral organic molecules intercalated into saponite, were prepared and characterized. TPBI was chosen as an organic host dye for its potential application as a downconverter in silicon or dye-sensitized photovoltaic modules. The neutral molecule was intercalated using a trojan horse approach, with the help of a cationic surfactant, to prevent aggregation. The obtained material was characterized using spectroscopic, diffractometric, and microscopic techniques. The intercalation, stability, and interactions of the dye were assessed by TGA-GC-MS. Finally, this material was used to prepare a photoactive polymer with desired optical properties.
Article
Pharmacology & Pharmacy
Nicolo Bordignon, Mariana Kober, Giorgia Chinigo, Carlotta Pontremoli, Ettore Sansone, Guillem Vargas-Nadal, Maria Jesus Moran Plata, Alessandra Fiorio Pla, Nadia Barbero, Judit Morla-Folch, Nora Ventosa
Summary: Photodynamic therapy is a non-invasive therapeutic strategy that uses external light and a photosensitizer to destroy abnormal cells. The main challenges in this therapy are the photosensitivity, hydrophobicity, and tumor target avidity of the photosensitizer. In this study, brominated squaraine was successfully incorporated into Quatsome nanovesicles to overcome the solubility limitation and maximize the PDT effectiveness. This approach allows for a lower concentration of squaraine compared to traditional PDT, making it a promising photosensitizer for PDT.
Article
Chemistry, Multidisciplinary
Francesco Maita, Luca Maiolo, Ivano Lucarini, Jose Ignacio Del Rio De Vicente, Antonio Sciortino, Mario Ledda, Valentina Mussi, Antonella Lisi, Annalisa Convertino
Summary: Microelectrode array (MEA) is the key method to study electrical activity in a population of electrogenic cells. This study reports the development of a MEA using disordered silicon nanowires (SiNWs) to successfully capture the electrical signals generated by the corticotrope AtT-20 cells. This extends the usefulness of MEA technology in investigating electrical communication in pituitary gland cells and provides new perspectives in recording electrical activity of excitable cells.
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.
