Article
Engineering, Environmental
Conner C. Murray, Andrew Safulko, Hooman Vatankhah, Charlie J. Liu, Bahareh Tajdini, Robert E. Marshall, Christopher Bellona
Summary: The search for effective and cost-efficient adsorbents for PFAS contamination has led to the evaluation of a novel surface modified organoclay (SMC) adsorbent compared to granular activated carbon (GAC) and ion exchange resin (IX) for the treatment of different PFAS impaired waters. Results showed that IX exhibited the best performance in terms of adsorbent use rates and was more effective than GAC and SMC in treating PFOA from various water sources excluding groundwater. Cost analysis indicated that treatment of landfill leachate and membrane concentrate was more expensive than groundwaters or wastewaters.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Leticia F. Velasco, Kyung Hoon Kim, Young-Seak Lee, Peter Lodewyckx
Summary: The study extensively investigated the characterization of fluorinated carbon fibers by water sorption, revealing that mild fluorination can enhance the surface hydrophilicity of carbon materials, while higher partial pressures result in fibers with more hydrophobic character.
FRONTIERS IN CHEMISTRY
(2021)
Article
Environmental Sciences
H. Z. Zhao, T. Liu, Z. Y. Wang, Q. W. Li, T. H. Wu, M. Zhang
Summary: The research found that the composite adsorbent has different pore structure characteristics depending on the LiCl solution concentration, with higher salt concentration leading to increased LiCl content. The water adsorption capacity of the composite adsorbent slightly increases after LiCl modification process with low salt load, then significantly increases with higher salt load, and finally decreases slightly.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Summayya Kouser, Sunny Gupta, Boris Yakobson
Summary: Exposure to oxygen can be harmful for materials and devices, but in certain cases, oxygen adsorption can play a key role in the surface conductivity of diamond. The impact of oxygen in different states on the transfer doping of diamond varies, explaining the non-monotonic carrier density dependence on exposure to oxygen. Additionally, ozone may be more effective for p-type doping of H-diamond due to its lower LUMO energy levels compared to molecular O-2.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Pharmacology & Pharmacy
Seong Jun Kim, Jae Chul Lee, Jin Young Ko, Seon Ho Lee, Nam Ah Kim, Seong Hoon Jeong
Summary: The study evaluated the applicability of a 3D printer equipped with a hot-melt pneumatic dispenser for preparing tablet dosage forms. Results showed that the hot-melt dispenser significantly enhanced drug dissolution, particularly for poorly water-soluble drugs.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Engineering, Environmental
Bai-Lin Liu, Yan-Wen Li, Li-Si Xie, Jing-Jie Guo, Lei Xiang, Ce-Hui Mo
Summary: This study investigated the sorption behaviors of microcystin-RR in different soils and identified the main factors affecting sorption. The results showed that the sorption followed pseudo-second-order kinetics and Freundlich model, and the linear distribution coefficients varied depending on soil properties. The sorption process involved various mechanisms such as electrostatic forces, cation exchange, and ligand exchange. The study provides important insights into the mobility potential of microcystins in terrestrial systems.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Avinash Kumar Both, Deepa Choudhry, Chin Li Cheung
Summary: This paper introduces an environmentally friendly fabrication process for converting hemp fibers into biocomposites through a pectin-based crosslinking reaction. The water-based chemical approach utilizes pectin and lignin present in hemp fibers to crosslink and produce hemp fiber composites in one step. Compared to traditional processes, our green process uses water as the reaction solvent and operates at a mild temperature of 70°C, eliminating the need for petroleum-based organic solvents and high reaction temperatures. In addition, the study examines the effects of different mass ratios of pectin to hemp fiber and pH values on the compressive strength and bulk density of the hemp fiber composite materials, confirming the formation of ester bonds between pectin and lignin via transesterification.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Xin Zhou, Weiman Li, Le Zhang, Shaohua Chai, Xiaoze Wang, Wen Li, Guangxin Ma, Hang Li, Haidi Liu, Shuangde Li, Jingguang Li, Yunfa Chen
Summary: In this study, a Linde type A zeolite@Mg-Al layered double hydroxides (LTA@LDH) with core-shell structure was synthesized and used for indoor dehumidification. The LTA@LDH with hierarchically porous structure showed better adsorption and desorption performance than pure LTA, with a higher water uptake capacity and lower desorption activated energy. The research proposed a three-stage dehumidification model of LTA@LDH to explain its unique sorption behaviors.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Thilakshani Atugoda, Chaminda Gunawardane, Mahtab Ahmad, Meththika Vithanage
Summary: Modification of biochar with zeolite improved the adsorption capacity for antibiotics removal from water, with SWBC-Z showing the highest adsorption capacity of 93.65 mg g(-1) for ciprofloxacin. The experiments confirmed the chemisorption and physisorption interactions on the biochar surface, and the FTIR analysis and electron microscopy supported the incorporation of zeolite minerals into the modified biochar. Thermodynamic data indicated a spontaneous and exothermic reaction between ciprofloxacin and both biochars, showing the enhanced overall adsorption performance of SWBC-Z.
Article
Chemistry, Physical
Julia Shayimova, Rustem R. Amirov, Artem Iakunkov, Alexandr Talyzin, Ayrat M. Dimiev
Summary: This study investigates the chemical interactions of Mn2+ ions with graphene oxides prepared by different methods in aqueous solutions through NMR relaxation. The presence of carboxyl groups does not necessarily determine the efficiency of metal ion binding. Differences in relaxation curves are mainly due to solubility and exfoliation degrees of the graphene oxide samples.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Engineering, Environmental
Danilo H. S. Santos, Joao P. T. S. Santos, Jose L. S. Duarte, Leonardo M. T. M. Oliveira, Josealdo Tonholo, Lucas Meili, Carmem L. P. S. Zanta
Summary: The study found that electrochemical treatment is efficient in restoring the adsorption capacity of activated carbon, particularly under cathodic current conditions. Through cyclic experiments, it was discovered that activated carbon maintains high adsorption capacity after electrochemical regeneration. The analysis indicates that electrochemical regeneration is an economical and environmentally friendly technique suitable for multiple water treatment cycles.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Multidisciplinary
Mark Gale, Tu Nguyen, Marissa Moreno, Kandis Leslie Gilliard-AbdulAzir
Summary: This study evaluated the influence of hydrothermal carbonization or slow pyrolysis process conditions on the physicochemical properties of precursor biochars and activated carbon. It was found that the O/C ratio decreased after chemical activation for HTC biochar but remained the same for SP biochar. Among various activated carbons, the one produced directly from corn stover showed the best adsorption performance for vanillin.
Article
Engineering, Biomedical
Sang-Yub Lee, Jung-Hwa Lim, Dohyun Kim, Dong-Hwan Lee, Seok Gyu Kim, Jong-Eun Kim
Summary: The aim of this study was to determine the color stability of 3D printed resin. The results showed that increasing the temperature and using GLY can effectively reduce the color change of the resin. There was an inverse correlation between DC and Wsl, and a positive correlation between Wsl and AE. Wsp, SFE, and Ra had no impact on color stability.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qi Chen, Xinyue Zhang, Donghui Zhang, Guojian Liu, Ke Ma, Jingjing Liu, Kaiqian Ma, Minzhang Chen, Yongsheng Li, Runhui Liu
Summary: Bioactive materials are highly demanded in clinical applications to support cell adhesion and tissue regeneration. This work presents a universal and one-step surface modification strategy by dipping materials into the solution of cell-adhesive molecules, β-peptide polymer, or RGD peptide. This strategy provides stable surface modification without undesired color change, offering a wide range of applications in implantable biomaterials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Islam Elsayed, Sunith Madduri, Emad M. El-Giar, El Barbary Hassan
Summary: The adsorption behavior of anionic dyes by polyethylenimine ozone oxidized hydrochar was studied, and it was found that the adsorption capacities of the dyes increased with the functionalization of polyethylenimine. Surface characterization showed that the modification greatly enhanced the adsorbent surface chemistry. The adsorption kinetics and isotherm results demonstrated the efficient removal of anionic dyes by the adsorbent.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Biochemical Research Methods
Ingrid Amer Cid, Lenny Van Daele, Peter Dubruel, Kristiaan Neyts, Filip Strubbe
Summary: Understanding the adsorption of polymers onto particles is crucial for many technological and biomedical applications. This study investigates the use of single-particle electrophoresis to directly analyze the adsorption kinetics of cationic polymers onto anionic particles. The results show that this technique enables accurate measurement and comparison of the kinetics of polymer adsorption on the single-particle level.
Article
Biochemistry & Molecular Biology
Manon Minsart, Nicolas Deroose, Laurens Parmentier, Sandra Van Vlierberghe, Arn Mignon, Peter Dubruel
Summary: This research focuses on the development of hydrogel-based wound dressings with high mechanical strength and exudate absorption capacities. The synthesized AUP materials show high gel fractions and strong swelling degrees, as well as tunable mechanical properties. They exhibit higher swelling degrees and mechanical resistance compared to commercial dressings. The materials also show excellent biocompatibility and have the potential to compete with commercially available dressings.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Chemistry, Physical
M. Munoz-Morales, A. Ramirez, Aurelien Canizares, J. Llanos, Conchi Ania
Summary: This study investigated the performance of 22 carbon materials with different origins and physicochemical characteristics as cathodes in the electrochemical production of hydrogen peroxide. Carbon nanotubes and carbon nanofibers showed the highest H2O2 production yields compared to common carbon benchmarks. Low-cost and disordered carbon cathodes with moderate electrical conductivity and density of structural defects also exhibited good catalytic activity. The structural parameters of the carbon materials were found to be more closely related to H2O2 production yield and faradaic efficiency than electrical conductivity, composition, or porous features. An AD/AG threshold value of 1.5 can be used to discriminate the electrocatalytic activity of carbon cathodes for H2O2 production.
Article
Construction & Building Technology
Gerlinde Lefever, Ahmad Shawki Charkieh, Mustafa Abbass, Danny Van Hemelrijck, Didier Snoeck, Dimitrios G. Aggelis
Summary: The inclusion of superabsorbent polymers (SAPs) is increasingly attractive to promote the self-healing ability of cementitious materials and reduce manual repair costs. Ultrasonic monitoring is used for non-destructive evaluation to determine the effectiveness and compare the healing capacity of different mixtures. However, previous studies mainly focused on mortars without large aggregates, so monitoring and comparing the self-healing of concrete and mortar were conducted. Ultrasonic surface wave monitoring shows the potential to evaluate crack closure and the effects of different SAPs.
DEVELOPMENTS IN THE BUILT ENVIRONMENT
(2023)
Article
Construction & Building Technology
Niranjan Prabhu Kannikachalam, Paula Sofia Marin Peralta, Didier Snoeck, Nele De Belie, Liberato Ferrara
Summary: This paper investigates the effects of stimulated autogenous self-healing on the performance recovery of UHPC under impact loadings. Experimental results show that specimens healed continuously under submerged conditions exhibit the highest healing efficiency, with complete closure of surface cracks and over 80% recovery in natural frequency. After four months of healing, there is a significant increase in stiffness and energy dissipation capacity.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Biochemistry & Molecular Biology
Arn Mignon, Tom Gheysens, Sander Walraet, Pieter Tack, Petra Rigole, Tom Coenye, Laszlo Vincze, Sandra Van Vlierberghe, Peter Dubruel
Summary: Infections are still a major cause of morbidity in burn wounds. Complexing iodine in acrylate-endcapped urethane-based poly(ethylene glycol) (AUP) polymers with or without poly(vinyl pyrrolidone) (PVP) leads to antimicrobial wound dressings with superior swelling and mechanical strength than commercial wound dressings, holding potential for future application in treating infected wounds.
MACROMOLECULAR BIOSCIENCE
(2023)
Proceedings Paper
Engineering, Aerospace
Eleni Korda, Eleni Tsangouria, Didier Snoeck, Geert De Schutter, Dimitrios G. Aggelis
Summary: This study aims to obtain real-time information on the ongoing physical processes in fresh concrete using Acoustic Emission (AE) and Digital Image Correlation (DIC), especially when admixtures such as SuperAbsorbent Polymers (SAPs) are added. The results show that SAPs mitigate settlement and shrinkage in early-age concrete, but their activation is delayed under windy conditions.
NONDESTRUCTIVE CHARACTERIZATION AND MONITORING OF ADVANCED MATERIALS, AEROSPACE, CIVIL INFRASTRUCTURE, AND TRANSPORTATION XVII
(2023)
Proceedings Paper
Construction & Building Technology
Davide di Summa, Didier Snoeck, Jose Roberto Tenorio Filho, Philip Van den Heede, Sandra Van Vlierberghe, Nele De Belie, Liberato Ferrara
Summary: Recent studies have highlighted the importance of investigating the sustainability of innovative cement-based composites. This study focuses on the use of Super Absorbent Polymers (SAPs) blended into the concrete matrix to promote autogenous healing and prolong durability. A Life Cycle Assessment (LCA) methodology was used to compare the eco-profile of a SAP-containing concrete wall with a reference wall without SAPs. Results showed better performance for SAP-containing concrete, with a reduction of up to 11% in overall costs and up to 55% in environmental burdens.
PROCEEDINGS OF THE 75TH RILEM ANNUAL WEEK 2021
(2023)
Proceedings Paper
Construction & Building Technology
Gerlinde Lefever, Nele De Belie, Danny Van Hemelrijck, Dimitrios G. Aggelis, Didier Snoeck
Summary: This study evaluates the closure of cracks in cementitious mixtures with and without superabsorbent polymers using ultrasound measurements. By sending ultrasonic waves through the cracks, information on both the sound material and the healing products formed within the cracks is obtained. The healing process is promoted by wet-dry curing cycles and monitored for 14 days. Ultrasound was found to be sensitive to the closure of cracks, as confirmed by microscopic analysis of the reduction in crack width opening.
PROCEEDINGS OF THE 75TH RILEM ANNUAL WEEK 2021
(2023)
Proceedings Paper
Construction & Building Technology
Didier Snoeck, Wannes Goethals, Jan Hovind, Pavel Trtik, Tim Van Mullem, Philip Van den Heede, Nele De Belie
Summary: Superabsorbent polymers (SAPs) are used as admixtures in cementitious materials for internal curing. Neutron tomography is employed to investigate the water release kinetics of different SAPs over time. The results provide insights into the time window for effective internal curing and its correlation with shrinkage and internal relative humidity measurements. One SAP effectively mitigated autogenous shrinkage and even caused partial expansion, while another type of SAP showed less effectiveness and behaved similar to a reference system with a higher water-to-cement ratio. The internal relative humidity measurements after two days indicated that the effective mixture maintained a high relative humidity of 98%, whereas the ineffective mixture had a lower internal relative humidity of 95%. It remains unclear whether the ineffective SAP released water too slowly or too quickly. Neutron tomography revealed the necessary kinetics for mitigating autogenous shrinkage of one SAP between final setting and 30 hours. However, the ineffective SAP released water quickly after final setting and before 20 hours, although water is still needed at later time intervals to further mitigate autogenous shrinkage and maintain internal relative humidity.
PROCEEDINGS OF THE 75TH RILEM ANNUAL WEEK 2021
(2023)
Proceedings Paper
Construction & Building Technology
Jose Roberto Tenorio Filho, Didier Snoeck, Nele De Belie
Summary: SAPs have been widely studied as admixtures for cementitious materials, and this paper reports on a large-scale testing campaign in Belgium using a commercial SAP. The addition of SAPs resulted in a significant reduction in shrinkage strain and cracking compared to reference walls without SAPs. However, there was a slight decrease in compressive strength at 28 days compared to the reference with less water and an increase compared to the reference with more water.
PROCEEDINGS OF THE 75TH RILEM ANNUAL WEEK 2021
(2023)
Review
Construction & Building Technology
Jingbin Yang, Zhenping Sun, Nele De Belie, Didier Snoeck
Summary: This review paper provides an overview of internal curing mechanism, common internal curing agents, and the most promising agent-superabsorbent polymers in alkali-activated materials (AAM) systems. The introduction of voids by internal curing agents typically has a negative impact on mechanical properties, but continuous water release during internal curing counteracts this effect by promoting hydration. While the effect of internal curing in reducing autogenous shrinkage of AAM systems has been well-established, the impact on drying shrinkage varies widely in different studies.
CEMENT & CONCRETE COMPOSITES
(2024)
Article
Construction & Building Technology
Gerlinde Lefever, Ahmad Shawki Charkieh, Danny Van Hemelrijck, Didier Snoeck, Dimitrios G. Aggelis
Summary: Non-destructive evaluation using air-coupled ultrasound provides an efficient method for assessing the self-healing ability of cementitious composites.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Biomaterials
Lenny Van Daele, Babs van de Voorde, Robin Colenbier, Lobke De Vos, Laurens Parmentier, Louis Van der Meeren, Andre Skirtach, Ruslan I. Dmitriev, Peter Dubruel, Sandra Van Vlierberghe
Summary: Cardiovascular diseases are the leading cause of death worldwide. Poly(alkylene terephthalate)s (PATs) with longer alkyl chain lengths show potential for improving compliance in vascular graft materials. This study investigated the effects of polymer molar mass and alkyl chain length on the surface properties of spin-coated PAT films, as well as endothelial cell adhesion and proliferation. The results showed that higher molar mass and longer alkyl chain lengths increased surface roughness, while no significant trend was observed for wettability. All investigated PATs were non-cytotoxic and supported endothelial cell adhesion and growth, with some PATs even promoting angiogenic maturation.
JOURNAL OF MATERIALS CHEMISTRY B
(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.
