Article
Chemistry, Physical
Beliz Sertcan, Seyyed Jabbar Mousavi, Marcella Iannuzzi, Peter Hamm
Summary: Theoretical calculations of low-frequency anharmonic couplings in the beta-phase of crystalline bromoform were conducted based on density functional theory quantum chemistry calculations. The dominant role of electrical anharmonicity in the 2D Raman-THz response of both crystalline and liquid bromoform was revealed. The difference in relative cross-peak intensities between intramolecular and intermolecular modes in bromoform can be explained by the C-3v symmetry of bromoform along with orientational averaging.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Review
Materials Science, Multidisciplinary
Matteo Battaglini, Melike Belenli Gumus, Gianni Ciofani
Summary: When nanostructures and other materials are exposed to biological fluids, they are covered by a layer of biological molecules known as a biomolecular corona (BC). Characterizing the composition and dynamic evolution of BC is crucial for predicting material interactions with living organisms. This review analyzes current BC characterization techniques and specifically explores the potential of Raman microscopy in overcoming limitations of existing techniques.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Materials Science, Ceramics
Shipra Choudhary, Manisha Sharma, Venkata Krishnan, Satyabrata Mohapatra
Summary: This study successfully prepared magnetically separable CoFe2O4-ZnO hybrid nanostructures and characterized their structure and morphology using various techniques. CoFe2O4-ZnO exhibited significantly enhanced photocatalytic performance compared to pristine CoFe2O4 due to its high light utilization ability and heterojunction formation that delayed charge carrier recombination. The study provides an efficient solution for sunlight-responsive magnetically separable CoFe2O4-ZnO photocatalyst in wastewater purification.
CERAMICS INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Ryo Kato, Toki Moriyama, Takayuki Umakoshi, Taka-aki Yano, Prabhat Verma
Summary: In this study, long-duration TERS imaging of a micrometer-sized WS2 sample was achieved in a reproducible manner, enabling the detection of nanoscale defects and rare optical signals in large area 2D materials.
Article
Materials Science, Multidisciplinary
Deepa Yadav, Neha Bura, Ankit Bhoriya, Jasveer Singh, Nita Dilawar Sharma
Summary: In this study, anharmonic characteristics of cubic Scandium Oxide and hexagonal Neodymium Oxide were investigated through temperature dependent phonon mode variation. The results revealed lattice expansion and strong anharmonic interactions with temperature increase, leading to measurable phonon softening. Both samples exhibited stable phases within the studied temperature range.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Spectroscopy
Yunxia Liu, Beilei Sun, Lucie Tajcmanova, Chao Liu, Jie Wu
Summary: This study collected fly ash samples from seven typical power plants in Shanxi province, China, to explore the effect of carbon residue structures on their burnout characteristic. The results showed that the structure of carbon residues in the fly ash has a significant impact on burnout characteristic, with more ordered structures in fly ash from circulating fluidized bed (CFB) power plants suppressing burnout and leading to an increase in loss on ignition (LOI) content, while less ordered structures in fly ash from pulverized coal boilers (PC) promoting burnout and resulting in a reduction of LOI content.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Materials Science, Multidisciplinary
V. Vipin Vijay, Sandhya G. Nair, Renjith Devasia
Summary: This paper reports the effect of titanium silicide active filler and the pyrolytic atmosphere on the ceramic conversion of polycarbosilane, and finds that the titanium silicide loaded polycarbosilane system heat treated under nitrogen atmosphere offers the best result of minimum shrinkage and better properties.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Mike Reppert, Deborah Reppert
Summary: This article introduces a simple diagrammatic representation for the 2D infrared spectroscopy response functions, which is applicable to systems with bilinearly coupled, weakly anharmonic oscillators. The study found that the quantum and classical response functions are the same in the case of small anharmonicity. This result offers potential computational advantages for large, multi-oscillator systems.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Materials Science, Composites
Yanmei Piao, Vipin N. Tondare, Chelsea S. Davis, Justin M. Gorham, Elijah J. Petersen, Jeffrey W. Gilman, Keana Scott, Andras E. Vladar, Angela R. Hight Walker
Summary: This study evaluated the effectiveness of XPS, Raman spectroscopy, and SEM methods on MWCNT-epoxy nanocomposite samples, finding a positive correlation between signal intensity and MWCNT mass loading. The results showed that these methods were capable of detecting MWCNTs at different concentrations and demonstrated good comparability among them.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Gianluca Gazzola, Marco Ambrosetti, Maria Cristina Mozzati, Benedetta Albini, Pietro Galinetto, Marcella Bini
Summary: ZnFe2O4 nanoparticles exhibit superparamagnetic behavior at room temperature, with maximum magnetization values between 4 and 7 emu/g at an applied magnetic field of 1T. The cationic disorder within the two sublattices has a clear influence on the blocking temperature, affecting the transition to an ordered blocked state at higher temperatures. EPR inspection confirmed the superparamagnetic behavior is related to the inversion degree of the spinel phase.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Balaram Thakur, Yogesh Kumar, Mukul Gupta, U. P. Deshpande, N. V. Chandra Shekar, Sujay Chakravarty
Summary: The effect of thickness on the magnetic property of amorphous carbon thin film is investigated. It is found that the thickness variation affects the microstructure and chemical characteristics of the films, leading to changes in their magnetic properties. The presence of weak ferromagnetic coupling between unpaired spins at sp2 sites is observed, and the saturation magnetization of the film decreases with increasing thickness.
Article
Chemistry, Physical
Jeon Woong Kang, Freddy T. Nguyen, Niyom Lue
Summary: Label-free live cell imaging was performed using a custom-built high-speed confocal Raman microscopy system to monitor cell-intrinsic Raman bands and intracellular distribution of important molecules. Optical phase delay measured using quantitative phase microscopy showed similarity with the image reconstructed from the protein Raman peak, demonstrating the powerful potential of Raman imaging for studying biomedical problems in vitro.
Article
Chemistry, Physical
Andrii Kozak, Michaela Sojkova, Filip Gucmann, Michal Bodik, Karol Vegso, Edmund Dobrocka, Igor Pis, Federica Bondino, Martin Hulman, Peter Siffalovic, Milan Tapajna
Summary: This study compares the nanoscale tribological properties of PtSe2, a two-dimensional transition metal dichalcogenide, and finds that the c-axis orientation of PtSe2 can affect its friction coefficient and surface roughness. Alignment of PtSe2 flakes from vertical to horizontal reduces the friction coefficient, while increasing the root-mean-square surface roughness. Epitaxial PtSe2 layers show lower friction compared to other investigated films.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Sachithra T. Wanasinghe, Adedayo M. Sanni, Sydney N. Lavan, Aaron S. Rury
Summary: In this study, we experimentally and computationally characterized the anharmonic interactions between the constituents of 2-methylbenzimidazole (MBI), a molecular ferroelectric material. We used Raman spectroscopy to assess the anharmonic properties of MBI and developed a method to analyze the effect of anharmonic coupling on intramolecular ring vibrations. Additionally, we explored the appearance of satellite peaks and their origins in MBI's vibrational soliton states. Our findings shed light on the structural dynamics of MBI and its impact on information storage and optical technologies.
VIBRATIONAL SPECTROSCOPY
(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, Physical
Love Bansal, Chanchal Rani, Tanushree Ghosh, Suchita Kandpal, Manushree Tanwar, Rajesh Kumar
Summary: In this study, fractal porous silicon (pSi) electrodes fabricated using metal-assisted chemical etching (MACE) technique were investigated for charge storage applications. The electrochemical performance of the pSi electrodes was studied and compared with c-Si electrodes. The results showed that the pSi electrodes exhibited more capacitive current flow, while the c-Si electrodes showed ohmic behavior. The calculated areal capacitance values at different scan rates were also moderate, suggesting that pSi could be a potential candidate for energy/charge storage electrodes.
Article
Physics, Applied
Arpit Kumar Singh, Sooraj Shiby, Anshu Sahu, Piyush Pachori, Manushree Tanwar, Rajesh Kumar, I. A. Palani
Summary: Graphene is highly sought after in device fabrication for its high conductivity and flexural strength. Laser patterning of polyimide for graphene synthesis has gained attention for its ability to create flexible devices. This study focused on optimizing laser pulse overlap to enhance the crystallinity and electrical resistivity of synthesized graphene.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Physics, Applied
Suchita Kandpal, Tanushree Ghosh, Chanchal Rani, Love Bansal, Manushree Tanwar, Rajesh Kumar
Summary: A hybrid electrochromic device combining hydrothermally synthesized tungsten oxide (WO3) films with electrodeposited polypyrrole was fabricated. The deposited thin films were characterized using various techniques before device fabrication. The resulting solid-state organic-inorganic electrochromic device exhibited reversible switching between coloration and bleaching states with minimal transmission loss and excellent cyclic stability. In-situ electrochemical studies showed enhanced switching speed and optical contrast, and the optimized device displayed enhanced coloration efficiency.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Suchita Kandpal, Ilya Ezhov, Manushree Tanwar, Denis Nazarov, Denis Olkhovskii, Leonid Filatov, Maxim Yu. Maximov, Rajesh Kumar
Summary: In order to design solid state hybrid or all-inorganic electrochromic devices, alternative methods for depositing electrochromic metal oxide thin films need to be explored. The electrochromic performance of a hybrid device using plasma assisted atomic layer deposition (ALD) grown nickel oxide (NiO) thin film and viologen was studied. The films of NiO with a thickness of a few tens of nanometers were first deposited on silicon, and then on Fluorine-doped Tin Oxide (FTO)/glass substrates to fabricate the device. The as-prepared films were analyzed for their structural and morphological properties, and a solid state organic-inorganic hybrid electrochromic device was fabricated. The device demonstrated impressive electrochromic behavior with high coloration efficiency, contrast ratio, and cycle life/stability. The ALD grown films showed advantage over other methods in terms of the smoothness and crack-free nature, allowing for proper power utilization in color switching. These results provide a new way to fabricate high-performance hybrid solid state electrochromic devices.
Article
Chemistry, Physical
Chanchal Rani, Suchita Kandpal, Tanushree Ghosh, Love Bansal, Manushree Tanwar, Rajesh Kumar
Summary: By performing temperature- and wavelength-dependent Raman Spectromicroscopy on heavily-doped Si, an unusual anti-anharmonic effect was discovered and its potential interrelation with the energy-dispersive behavior of Fano coupling strength was explored. A method to calculate the Fano-interferon dissociation energy was developed by understanding the manifestation of the interplay in terms of the Raman line shape, and a wavelength-dependent empirical relation was proposed to calculate the required thermal energy to dissociate the electron-phonon bound state.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Materials Science, Multidisciplinary
Tanushree Ghosh, Suchita Kandpal, Chanchal Rani, Anjali Chaudhary, Rajesh Kumar
Summary: Electrochromism has been widely applied in smart devices such as smart windows, self-powered batteries, and solar panels. Solid-state integration of electrochromic materials is crucial for these applications. This article provides a comprehensive discussion on various materials acting as chromophores under electric bias and the parameters influencing device performance. The design of the device, including conducting substrates, electrochromic active materials, and electrolytes, is also discussed, along with different device paradigms and application-oriented structural modifications. The challenges and future directions are addressed as well.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Ranjeev Kumar Parashar, Suchita Kandpal, Prasanta Bandyopadhyay, Mainak Sadhukhan, Rajesh Kumar, Prakash Chandra Mondal
Summary: The demand for low-cost electrochromic materials has surged in recent years due to their applications in visible-region multicolor display technology, flexible and wearable electronic devices, smart windows, and optoelectronic applications. In this study, the authors successfully fabricated large-scale polyelectrochromic devices using a novel anthracene containing viologen, AnV(2+), and polythiophene (P3HT). These devices exhibited reversible color changes, fast switching time, high coloration efficiency, and long cycling stability. The integration of anthracene moieties in the viologen prevented the undesired formation of cation radical dimers, which would have hindered color switching when the bias polarity is reversed. This work demonstrates the compatibility with CMOS technology and opens up possibilities for the development of cost-effective flexible and wearable electrochromic devices.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Chemistry, Physical
Suchita Kandpal, Tanushree Ghosh, Chanchal Rani, Anjali Chaudhary, Jinwoo Park, Pooi See Lee, Rajesh Kumar
Summary: Significant development in science and technology has occurred to meet the rising energy demands, particularly in response to environmental concerns associated with fossil fuels. Electrochromic devices, which combine energy conversion with color modulation, hold great promise for energy storage and saving purposes in buildings and vehicles, and can operate similarly to batteries and supercapacitors.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Bhumika Sahu, Tanushree Ghosh, Suchita Kandpal, Love Bansal, Chanchal Rani, Hem Chandra Jha, Rajesh Kumar
Summary: Herbal electronics is an emerging field that focuses on the optical and electrical properties of herbal materials for potential electronic applications. This study investigates the optical properties of turmeric and henna extract solutions through absorption and luminescence spectroscopies. The analysis reveals that when the two solutions are mixed and excited by a blue/UV LED, they emit yellow light. The emission color is quantitatively evaluated using CIE color chart and the PL quantum yield is calculated. A simple setup demonstrates the yellow emission using a blue LED (400 nm) and the mixture solution, achieving a quantum yield of approximately 5%.
Article
Nanoscience & Nanotechnology
Ranjeev Kumar Parashar, Suchita Kandpal, Nila Pal, Debashree Manna, Bhola Nath Pal, Rajesh Kumar, Prakash Chandra Mondal
Summary: This study reports the coexistence of bistate electrochromic and single-resistor memory functions in a novel viologen. A high-performance electrochromic function is achieved by combining viologen with polythiophene. The random-access memory devices exhibit distinct low and high resistive states, bipolar and nonvolatile characteristics, and have good performances and Write-Read-Erase functions. This discovery could boost the development of multifunctional, smart, wearable, flexible, and low-cost optoelectronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Chinmaya Kumar Patel, Chanchal Rani, Rajesh Kumar, Tushar Kanti Mukherjee
Summary: Protein aggregation and inactivation during surface immobilization hinder analytical applications in biotechnology. However, biomolecular condensates of active human serum transferrin (Tf) can prevent surface-induced fibrillation and maintain the native conformation of phase-separated Tf for a month. The condensates promote homotypic liquid-liquid phase separation (LLPS) through hydrophobic interactions, without undergoing a solid-like phase transition. These liquid-like condensates also inhibit surface-induced fibrillation, protecting the biomolecules from denaturation and aggregation. This study sheds light on the functional aspect of protein condensates and their potential applications in cell physiology and biotechnology.
Article
Chemistry, Multidisciplinary
Monika Nehra, Rajesh Kumar, Neeraj Dilbaghi, Sandeep Kumar
Summary: In recent years, the excessive exposure of antibiotics to humans and the environment has raised concerns about antibiotic pollution. However, the existing instrument-dependent and time-consuming conventional detection methods are not suitable for real-time antibiotic detection in the field. This study synthesized two Cu-based metal-organic frameworks (Cu-btc) with the same stoichiometry under different reaction conditions. The Cu-MOF2 produced through the hydrothermal approach exhibited better structural and crystalline properties than Cu-MOF1 prepared under normal laboratory conditions. The high peroxidase-like activity of Cu-MOF2 was utilized to develop a colorimetric assay for the detection of tetracycline in water.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Leonid Filatov, Pavel Vishniakov, Ilya Ezhov, Ivan Gorbov, Denis Nazarov, Denis Olkhovskii, Rajesh Kumar, Shengjie Peng, Gang He, Vladislav Chernyavsky, Marina Gushchina, Maxim Maximov
Summary: This article investigates the impact of atomic layer deposition method on the growth of carbon nanotubes, and found that the initial NiO layer thickness plays a significant role in achieving intensive growth of carbon nanotubes.
Article
Materials Science, Multidisciplinary
Love Bansal, Tanushree Ghosh, Suchita Kandpal, Chanchal Rani, Bhumika Sahu, Deb Kumar Rath, Christoph Wesemann, Sandeep Chhoker, Nadja C. Bigall, Rajesh Kumar
Summary: This study investigates the suitability of microcrystalline MoO3 powder for energy storage devices and HF sensing. The results show that the specific capacitance of MoO3 increases linearly with the concentration of HF, and MoO3 exhibits good stability and repeatability. In situ Raman spectroscopy is used to understand the charge storage mechanism. The material demonstrates high sensitivity and a low limit of detection, making it suitable for sensing and charge storage applications.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Suchita Kandpal, Love Bansal, Anjali Ghanghass, Tanushree Ghosh, Chanchal Rani, Bhumika Sahu, Deb Kumar Rath, Ravi Bhatia, I. Sameera, Rajesh Kumar
Summary: A new methodology for enhancing electrochromic performance and adding energy storage capabilities to create a multifunctional solid-state device has been demonstrated. The fabricated device shows improved electrochromic performance in terms of switching time, color contrast, efficiency, and stability in both visible and near-infrared (NIR) regions.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
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.
