Article
Chemistry, Multidisciplinary
Stefano Tagliaferri, Goli Nagaraju, Apostolos Panagiotopoulos, Mauro Och, Gang Cheng, Francesco Iacoviello, Cecilia Mattevi
Summary: The fabrication of high-performance microsupercapacitors using 3D printing technology without the need for high temperature processing has achieved exceptional areal capacitance and power density. The rational design of electrode architectures and the use of current collector-free devices have significantly improved electrochemical performance.
Article
Chemistry, Physical
Guofu Chen, Wenlong Bao, Jiao Chen, Zhaoliang Wang
Summary: This paper studies the thermal rectification phenomenon in graphene supported by a heterogeneous substrate and investigates the influence of heat source temperature and size on the thermal rectification rate. The results show that the heat flux is more easily transferred from the graphene covered on the SiO2 side.
Article
Chemistry, Multidisciplinary
Jincan Zhang, Kaicheng Jia, Yongfeng Huang, Xiaoting Liu, Qiuhao Xu, Wendong Wang, Rui Zhang, Bingyao Liu, Liming Zheng, Heng Chen, Peng Gao, Sheng Meng, Li Lin, Hailin Peng, Zhongfan Liu
Summary: The study found that pristine graphene exhibits high hydrophilicity with an average water contact angle of approximately 30 degrees, due to charge transfer between graphene and water molecules. This work provides insight into water-graphene interaction and introduces a new approach for measuring surface properties of 2D materials.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Shasha Wang, Xianxian Sun, Fan Xu, Minglong Yang, Weilong Yin, Jianjun Li, Yibin Li
Summary: Researchers successfully enhanced the tensile strength of graphene films by preparing GO/graphene hybrid films using graphene oxide (GO). The tensile strength of the films increased with the concentration of GO, showing excellent fracture toughness.
Article
Chemistry, Multidisciplinary
Shanqing Liang, Huicong Wang, Xin Tao
Summary: A flexible low-voltage biomass matrix electric-heating composite was fabricated using ultrasonic dispersion and suction filtration, incorporating graphene oxide and cationic cellulose nanofiber. The introduction of graphene oxide increased thermal stability while decreasing tensile strength and strain of the films. Additionally, the electrical conductivity and power density of the films were significantly improved with increasing graphene oxide content, showcasing rapid temperature attainment and excellent electric heating response capabilities.
Article
Chemistry, Physical
Xiaopeng Li, Run Zhang, Faqin Dong, Youhong Tang, Lei Xu, Chenghua Sun, Hongping Zhang
Summary: This study found that doping graphene with different elemental dopants can effectively enhance its ability to adsorb glyphosate. Among them, Cu-, O- and Pd-doped graphenes are outstanding candidates for glyphosate adsorbents due to their interactions with graphene.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Dan Tan, Morten Willatzen, Johan Christensen
Summary: Structuring graphene can enhance or alter its electronic, optical, and thermal properties. One approach is to punch holes in graphene to form antidot lattices, which transforms it from a semimetal to a semiconductor. In this study, we grow h-BN nanorings on graphene to reduce thermal conductivity. Through simulations, we find that thinner nanorings lead to significantly reduced thermal conductivities by 76% compared to graphene. Additionally, we discuss how an applied electric field can break crystal symmetry and enable directionally tunable thermal transport, providing exciting possibilities to reduce thermal dissipation and enhance other properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Multidisciplinary
Julia Bord, Bjoern Kirchhoff, Matthias Baldofski, Christoph Jung, Timo Jacob
Summary: Density functional theory (DFT) is utilized to investigate the electronic structure of platinum clusters on different graphene substrates. The size and defects of both the clusters and the graphene substrates are examined. The results reveal that larger vacancies lead to stronger binding of Pt clusters, while defect-free graphene shows more exothermic formation energy with increasing cluster size. Oxygen-free graphene supports are crucial for successful attachment of Pt, and cluster stability depends on the number and ratio of Pt-C, Pt-Pt, and Pt-O bonds rather than the cluster geometry.
Article
Chemistry, Physical
C. Redondo-Obispo, P. Serafini, E. Climent-Pascual, T. S. Ripolles, I Mora-Sero, A. de Andres, C. Coya
Summary: The study introduced graphene into hybrid halide perovskite solar cells, finding that low concentrations of graphene can delay film degradation and improve photovoltaic performance and stability, while high concentrations of graphene can be detrimental to device operation. The research proposed that the sealing effect of graphene on perovskite grains may enhance stability, but it could also limit electronic transport and increase the porosity of films for gas penetration.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Polymer Science
Ali Tarhini, Ali Tehrani-Bagha, Michel Kazan, Brian Grady
Summary: This study investigates the impact of graphene flake size on the properties of PVDF-HFP composites, demonstrating that larger graphene flakes result in higher electrical and thermal conductivity, as well as tensile strength. The composite films with larger graphene flakes achieved ultra-high in-plane electrical conductivity, in-plane thermal conductivity, and tensile strength. These values are reported to be the highest among PVDF-based composites in the literature.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Optics
M. S. Mrudul, Alvaro Jimenez-Galan, Misha Ivanov, Gopal Dixit
Summary: The article presents a method to achieve valley-selective excitation and valley-selective high-harmonic generation in pristine graphene using two counter-rotating circularly polarized fields. Controlling the relative phase between the two allows for the selection of valleys where electron-hole pairs and higher-order harmonics are generated.
Article
Materials Science, Multidisciplinary
Kun Li, Hejun Li, Ni Li, Qiang Song, Lehua Qi
Summary: In this study, the mechanisms of CH4 dissociation to C2H2 during chemical vapor infiltration process were systematically investigated using density functional theory, revealing that these reactions occur more easily on vacancy graphene but are more difficult on N-doped graphene.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yaqi Wang, Junwei Yang, Yiheng Song, Quanling Yang, Chuanxi Xiong, Zhuqun Shi
Summary: In this study, bio-based cellulose nanofibers and graphene were used to fabricate 3D carbon aerogels with excellent conductivity. The carbonized aerogels showed a specific capacitance of 134.09 F/g at a current density of 0.5 A/g and retained 98.89% capacitance after 5000 cycles. When the temperature increased to 1100 degrees C, the electrochemical performance of the carbonized cellulose nanofiber aerogel significantly improved, with a specific capacitance of 361.74 F/g and a capacitance retention of 99.3% after 5000 cycles. These bio-based cellulose nanofibers hold great promise in the field of supercapacitors.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Stefan Goodwin, Zachary Coldrick, Sebastian Heeg, Bruce Grieve, Aravind Vijayaraghavan, Ernie W. Hill
Summary: This study presents a method for fabricating pristine monolayer graphene ultramicroelectrodes and characterizing their electrochemical properties. The cyclic voltammetry demonstrated expected behavior for ultramicroelectrodes, while reduction of IrCl62- was used to investigate electron transfer characteristics and reproducibility. Raman spectroscopy confirmed reduced charge doping in the graphene ultramicroelectrodes before and after electrochemical measurements.
Article
Chemistry, Physical
Fang Luo, Xiaosong Jiang, Hongliang Sun, Defeng Mo, Yali Zhang, Rui Shu, Xue Li
Summary: This study focuses on the fabrication of thermal management materials integrating thermal and electrical properties by preparing graphene film reinforced Cu laminated composites. Graphene serves as a good reinforcement phase due to its excellent electrical and thermal conductivity. By optimizing the internal structure of the materials, better electrical and thermal conductivity performance can be achieved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Jamil Islam, Parthiba Karthikeyan Obulisamy, Venkata K. K. Upadhyayula, Alan B. Dalton, Pulickel M. Ajayan, Muhammad M. Rahman, Manoj Tripathi, Rajesh Kumar Sani, Venkataramana Gadhamshetty
Summary: In this study, the use of graphene layers on copper surfaces for microbially driven methanol dehydrogenation to generate DC electricity was investigated. The results showed that the graphene layers significantly improved the power density and current density. This catalyst-free approach has important implications for enhancing the sustainability of fuel cell technologies.
Article
Chemistry, Multidisciplinary
Tian Carey, Oran Cassidy, Kevin Synnatschke, Eoin Caffrey, James Garcia, Shixin Liu, Harneet Kaur, Adam G. Kelly, Jose Munuera, Cian Gabbett, Domhnall O'Suilleabhain, Jonathan N. Coleman
Summary: This study presents a method to obtain large-area semiconducting flakes of tungsten diselenide (WSe2) and tungsten disulfide (WS2) through electrochemical exfoliation. The flakes are then aligned and conformal using Langmuir-Schaefer coating technique. The fabricated electrochemical transistors exhibit high mobility and good performance on bending substrates, making them potentially valuable for flexible electronics applications.
Article
Chemistry, Multidisciplinary
Stefano Ippolito, Francesca Urban, Wenhao Zheng, Onofrio Mazzarisi, Cataldo Valentini, Adam G. Kelly, Sai Manoj Gali, Mischa Bonn, David Beljonne, Federico Corberi, Jonathan N. Coleman, Hai I. Wang, Paolo Samori
Summary: In this article, the charge-transport mechanisms of printed devices based on covalent MoS2 networks are studied, comparing the effects of aromatic versus aliphatic dithiolated linkers. The results show that aliphatic systems lead to 3D variable range hopping, while aromatic linkers exhibit nearest neighbor hopping. The improved performance of devices functionalized with pi-conjugated molecules is attributed to enhanced interflake electronic connectivity and additional percolation paths.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Kangho Lee, Beata M. Szydlowska, Oliver Hartwig, Kevin Synnatschke, Bartlomiej Tywoniuk, Tomas Hartman, Tijana Tomasevic-Ilic, Cian P. Gabbett, Jonathan N. Coleman, Zdenek Sofer, Marko Spasenovic, Claudia Backes, Georg S. Duesberg
Summary: Liquid-phase exfoliation (LPE) is a versatile and scalable method for producing two-dimensional (2D) materials. In this study, highly conductive films made of platinum diselenide (PtSe2) flakes were successfully fabricated using LPE. These films showed uniform morphology and electrical behavior, and were used to create a chemiresistive sensor structure capable of detecting ammonia gas at sub-0.1 parts per million (ppm) levels. Remarkably, the PtSe2-based devices remained fully functional even after 15 months, demonstrating their high stability.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Peter J. Lynch, Manoj Tripathi, Aline Amorim Graf, Sean P. Ogilvie, Matthew J. Large, Jonathan Salvage, Alan B. Dalton
Summary: Tunable infrared properties are achieved with carbon nanotube networks spray-deposited onto an ionic liquid-infused membrane, allowing for control of emissivity and apparent temperature. These devices utilize intraband transitions in carbon nanotube networks to enable scalable and printed devices, resulting in emissivity modulation from -0.5 to -0.2. The understanding of these devices provides criteria for infrared electrochromic materials, opening the possibility for solution-processable coatings in thermal management applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
James R. Garcia, Mark McCrystal, Dominik Horvath, Harneet Kaur, Tian Carey, Jonathan N. Coleman
Summary: In this study, a new class of piezoresistive nanocomposites was developed by mixing different types of 2D nanosheets. It was found that the conductivity of each nanocomposite type exhibited a different dependence on filler volume fraction, and they also showed different piezoresistive properties. This research expands the understanding of piezoresistive nanocomposites and provides a platform for the engineering of high-performance strain sensors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Enrico Gnecco, Arkadiusz Janas, Benedykt R. Jany, Antony George, Andrey Turchanin, Grzegorz Cempura, Adam Kruk, Manoj Tripathi, Frank Lee, A. B. Dalton, Franciszek Krok
Summary: The interaction between metallic nanoparticles and transition metal chalcogenides (TMDs) can lead to new functionalities in technology fields such as optoelectronics and nanoengineering. In this study, the self-assembly of triangular-shaped crystalline Au nanoislands on mechanically exfoliated or chemically vapor deposited (CVD) MoS2 flakes was investigated. The density and size of the islands were determined by substrate temperature, deposition flux, and subsurface morphology. Raman spectroscopy was used to measure the thickness of the MoS2 layers and evaluate the strain and doping distributions induced by the Au islands. Scanning electron microscopy (SEM) and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) were used to obtain top and cross-sectional images of the Au-MoS2 interface. Sub-nanometer resolution images revealed that the MoS2 flakes followed the corrugation of the SiO2 substrate, with flattening and wrinkling effects induced by the growth of the Au islands on top.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Anna Zhuravlova, Antonio Gaetano Ricciardulli, Dawid Pakulski, Adam Gorczynski, Adam Kelly, Jonathan N. Coleman, Artur Ciesielski, Paolo Samori
Summary: Chemical sensing of water contamination by heavy metal ions is a severe environmental problem. Two-dimensional transition metal dichalcogenides (TMDs) show potential as chemical sensors due to their high surface-to-volume ratio and unique electrical characteristics, but lack selectivity. In this study, defect-rich MoS2 flakes were functionalized to develop ultrasensitive and selective sensors for cobalt(II) ions. Through a tailored microfluidic approach, a continuous network was formed by healing the sulfur vacancies in MoS2, enabling high control over the assembly of thin and large hybrid films. The developed sensor exhibited a low limit of detection, broad concentration range, and high selectivity towards Co2+ ions.
Article
Nanoscience & Nanotechnology
Adam G. Kelly, Siadhbh Sheil, Danielle A. Douglas-Henry, Eoin Caffrey, Cian Gabbett, Luke Doolan, Valeria Nicolosi, Jonathan N. Coleman
Summary: Transparent conductors are essential in many applications, and there is a demand for higher performing and cheaper alternatives. This study presents a high-performance transparent conductor made of silver nanosheets printed using aerosol jet printing. By annealing the silver nanosheets and adjusting the grid structure, high transparency and low resistance can be achieved.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Dominik V. Horvath, Valeria Nicolosi, Jonathan N. Coleman
Summary: This study quantitatively examines the relationship between the volumetric capacity of Li-storing electrodes and their rate performance, showing that capacity and rate performance are anti-correlated. This observation is consistent with a simple physical model which explains this effect based on the RC charging time of the electrode.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Shixin Liu, Tian Carey, Jose Munuera, Kevin Synnatschke, Harneet Kaur, Emmet Coleman, Luke Doolan, Jonathan N. Coleman
Summary: A reliable solution-processing method is reported for fabricating heterojunction diodes with tungsten selenide nanosheets as the optical absorbing material. The obtained heterojunctions show high rectification ratios without relying on heavily doped silicon substrates and exhibit self-powered behaviors at zero bias.
Article
Nanoscience & Nanotechnology
Najwa Hamzan, Mehran Sookhakian, Mohd Arif Mohd Sarjidan, Manoj Tripathi, Alan B. Dalton, Boon Tong Goh, Yatimah Alias
Summary: Thermalchemical vapor deposition was used to grow aligned manganese silicide (MnSi) nanowires on a c-Si(111) substrate. The growth, composition, and morphology of MnSi nanowires were characterized using various techniques. The electrocatalytic activity of MnSi nanowires in the hydrogen evolution reaction (HER) was found to be highest at lower reaction pressure (0.12 mbar). This increase in activity was attributed to an increase in charge carrier transport due to the smaller diameter of the nanowires.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ali Zein Khater, M. A. S. R. Saadi, Sohini Bhattacharyya, Alex Kutana, Manoj Tripathi, Mithil Kamble, Shaowei Song, Minghe Lou, Morgan Barnes, Matthew D. Meyer, Vijay Vedhan Jayanthi Harikrishnan, Alan B. Dalton, Nikhil Koratkar, Chandra Sekhar Tiwary, Peter J. Boul, Boris Yakobson, Hanyu Zhu, Pulickel M. Ajayan, Muhammad M. Rahman
Summary: Carbon nanotube (CNT)-reinforced polymer nanocomposites have great potential for various applications. However, conventional fabrication techniques for CNT-polymer nanocomposites often result in microstructural defects and poor dispersion of CNTs. In this study, we demonstrate that 3D printing offers improved processing dynamics for CNT-polymer nanocomposites, leading to enhanced mechanical and thermal properties.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Meeting Abstract
Cell & Tissue Engineering
Jack Maughan, Pedro J. Gouveia, Adrian Dervan, Jonathan N. Coleman, Fergal J. O'Brien
TISSUE ENGINEERING PART A
(2023)
Article
Chemistry, Multidisciplinary
Floriana Morabito, Kevin Synnatschke, Jake Dudley Mehew, Sebin Varghese, Charles James Sayers, Giulia Folpini, Annamaria Petrozza, Giulio Cerullo, Klaas-Jan Tielrooij, Jonathan Coleman, Valeria Nicolosi, Christoph Gadermaier
Summary: Liquid-phase exfoliation enables the production of nanosheet films of 2D semiconductors with exceptionally long carrier lifetime, which is suitable for applications such as light harvesting and sensing.
NANOSCALE ADVANCES
(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.
