Article
Chemistry, Multidisciplinary
Laura von Lueders, Rita Tilmann, Kangho Lee, Cian Bartlam, Tanja Stimpel-Lindner, Tarja K. Nevanen, Kristiina Iljin, Kathrin C. Knirsch, Andreas Hirsch, Georg S. Duesberg
Summary: We present a controllable and specific functionalisation approach for graphene field-effect transistors (GFETs) in order to detect small physiologically active molecules. The key step involves the noncovalent functionalisation of graphene with perylene bisimide (PBI) molecules directly on the growth substrate. This method allows for the homogeneous self-assembly of PBI molecules on graphene, followed by the immobilization of antibodies. The functionalised GFET devices showed excellent performance in terms of atomic force microscopy, Raman spectroscopy, and electrical measurements compared to conventional functionalisation methods. Specific sensing of small molecules such as methamphetamine and cortisol was achieved by monitoring the electrical changes of the functionalised GFET devices. The sensors were able to detect methamphetamine down to a concentration of 300 ng ml(-1).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Biochemistry & Molecular Biology
Mohammed A. H. Farouq, Karina Kubiak-Ossowska, Mohammed M. Al Qaraghuli, Valerie A. Ferro, Paul A. Mulheran
Summary: This study investigated the adsorption behavior of Staphylococcus protein A (SpA) on different inorganic surface models using molecular dynamics simulations. The results showed that SpA could adsorb on all surface models, with adsorption on charged surfaces being more specific compared to a neutral surface. The optimal adsorption of SpA was observed on the siloxide-rich silica surface, suggesting its potential application in conjugating antibodies to nanoparticles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Abdelsattar O. E. Abdelhalim, Konstantin N. Semenov, Dmitry A. Nerukh, Igor V. Murin, Dmitrii N. Maistrenko, Oleg E. Molchanov, Vladimir V. Sharoyko
Summary: This review summarizes the origins and methods of functionalization of graphene-based nanomaterials (GBN), and introduces their applications in various fields such as material development, drug delivery, and biosensing. It will be very useful for professionals in the fields of material science and nanobiomedicine.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Ines Ferreira, Claudia Lopes, Marco S. Rodrigues, Pedro V. Rodrigues, Cidalia Castro, Ana Cristina Braga, Maria Lopes, Filipe Vaz, Irene Pina-Vaz, Benjamin Martin-Biedma
Summary: This study evaluated the effects of low-pressure Argon and Oxygen plasma atmospheres on conventional and bioceramic gutta-percha surfaces. The plasma treatments increased roughness, surface free energy, and wettability, which improved the adhesive properties of gutta-percha. The chemical structure of gutta-percha remained mostly unchanged during the plasma treatments.
SCIENTIFIC REPORTS
(2023)
News Item
Optics
Andrea C. Ferrari
Summary: The unique optical properties of graphene were combined with lithium-ion battery technology to produce multispectral optical devices with colour-changing capabilities.
Article
Chemistry, Physical
Richard N. L. Terrett, George Tsekouras, Takuya Tsuzuki, Gerhard F. Swiegers, Ronald J. Pace, Robert Stranger
Summary: Graphenic carbon as a support material in catalytic electrodes shows excellent electrical properties and flexibility, allowing for diverse routes for the covalent attachment of candidate catalytic species. Research has found that the flexibility of graphene sheets and the conformational degrees of freedom of candidate edge functionalization permit a wide variety of realistic attachment geometries for manganese oxide particles. Simplified models of graphene attachment offer a good compromise between computational efficiency, tractability, and accuracy.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Noelia Rubio, Heather Au, Gabriel O. Coulter, Laure Guetaz, Gerard Gebel, Cecilia Mattevi, Milo S. P. Shaffer
Summary: The study shows that the locus of functionalisation on graphene-related materials and the progress of the reaction strongly depend on the starting feedstock. Experiments with five characteristically different graphite sources reveal an increase in grafting ratio and an improvement in grafting stoichiometry as flake radius decreases. Raman spectrum imaging indicates that grafting is directed towards flake edges.
Article
Materials Science, Coatings & Films
Yingliang Zhou, Hanyang Li, Ji-Eun Jung, Sang Ki Nam, Vincent M. Donnelly
Summary: This paper presents a study on reducing the erosion of SiO2 in a high-power density plasma by using a specific plasma source. The results show that alternating exposure to H-2/Ar and O-2/Ar plasmas can effectively reduce the etching rate and surface roughness. In addition, a possible mechanism involving the penetration of H atoms is proposed.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Nanoscience & Nanotechnology
Ningthoujam Somorjit Singh, Franco Mayanglambam, Harshal B. Nemade, P. K. Giri
Summary: This study explores the use of large-area graphene oxide (GO) sheets for surface-enhanced Raman spectroscopy (SERS) sensing. By exfoliating the GO sheets and reducing them through thermal treatment, the researchers were able to achieve a high enhancement factor in the presence of Rhodamine B dye. They also found that plasma treatment of GO yielded the highest enhancement factor among reported values. This study highlights the potential of large-area GO as a substrate for trace detection applications.
ACS APPLIED NANO MATERIALS
(2022)
Article
Polymer Science
Chun-Yan Wang, Malte Schoen, Tobias Horn, Martin Facklam, Rainer Dahlmann, Christian Hopmann, Guang-Jian He
Summary: This article reports a method of using plasma to functionalize molten polyethylene, enhancing its polarity. Oxygen-containing functional groups were successfully introduced into the molecules of polyethylene through plasma treatment. The treated polyethylene showed improved hydrophilicity and increased viscosity due to the formation of cross-linking structures.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Engineering, Mechanical
Jianjun Bian, Lucia Nicola
Summary: Results from molecular dynamics simulations show that covering the rough copper surface with a wrinkled graphene layer is the best solution for reducing friction.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Chemistry, Physical
B. T. Weclawski, A. R. Horrocks, J. R. Ebdon, R. Mosurkal, B. K. Kandola
Summary: This study aimed to functionalize and characterize the surface of nylon 6.6 fabrics through a novel atmospheric cold plasma coupled with ultraviolet excimer laser treatment. The treatment did not physically degrade the fibers, but induced changes in surface chemistry by generating additional functional groups. Analysis of these chemical surface changes required a new low-temperature diagnostic dyeing method, compared with X-ray photoelectron spectroscopy. Radicals were proposed as the mechanisms for these surface changes, with their characteristics depending on the atmosphere type and plasma power used. Radical production was confirmed using radical scavengers and spectroscopic analysis.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Coatings & Films
Behnam Dashtbozorg, Xiao Tao, Hanshan Dong
Summary: Active-screen plasma (ASP) has shown great potential as a versatile surface engineering solution for enhancing the properties of biopolymers and carbon-based materials. By introducing moieties, modifying chemical bonding, changing morphology, and improving wettability, ASP treatments can improve the biocompatibility of biopolymers and enhance the performance of carbon-based materials.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Sebastiano Bellani, Leyla Najafi, Mirko Prato, Reinier Oropesa-Nunez, Beatriz Martin-Garcia, Luca Gagliani, Elisa Mantero, Luigi Marasco, Gabriele Bianca, Marilena Zappia, Cansunur Demirci, Silvia Olivotto, Giacomo Mariucci, Vittorio Pellegrini, Massimo Schiavetti, Francesco Bonaccorso
Summary: The production of novel carbonaceous nanomaterials for VRFB electrodes and the optimization of electrode performance through gas plasma treatment and graphene addition were studied. The optimized VRFB configurations demonstrated efficient operation across a wide range of current densities with high energy efficiencies.
CHEMISTRY OF MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Amanda J. Carr, Seung Eun Lee, Ahmet Uysal
Summary: Graphene and graphene oxide (GO) are promising nanomaterials for various applications. Understanding the nanoscale interactions between ions and water near their surfaces is crucial. This review emphasizes the need for surface-specific experimental probes and computational techniques to fully characterize these interfaces. Key studies considering water and ion structures near graphene and GO are discussed, highlighting important findings and their implications. Outlooks and perspectives for future research in these areas are also provided.
Article
Chemistry, Multidisciplinary
Minjun Kim, Joseph F. S. Fernando, Jie Wang, Ashok Kumar Nanjundan, Jongbeom Na, Md Shahriar A. Hossain, Hiroki Nara, Darren Martin, Yoshiyuki Sugahara, Dmitri Golberg, Yusuke Yamauchi
Summary: The study presents a heterostructured porous carbon framework composed of rGO nanosheets and MOF-derived microporous carbon, showing efficient lithium-ion storage performance. The unique 3D heterostructure of the PCF can withstand volume expansion, contributing to a deeper understanding of tailored design for future lithium-ion batteries.
CHEMICAL COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Jinliang Zhu, Enjun Jiang, Xueqian Wang, Zhiyi Pan, Xingtao Xu, Shaojian Ma, Pei Kang Shen, Likun Pan, Miharu Eguchi, Ashok Kumar Nanjundan, Joe Shapter, Yusuke Yamauchi
Summary: Transition metal phosphides and oxides are used as inexpensive alternatives for precious metal catalysts in electrochemical reactions. This study reports the synthesis of a Cu3P-Cu2O Janus bifunctional catalyst in a N, P-doped 3D hierarchically porous carbon framework (Cu3P-Cu2O/NPC), which shows superior activity and stability in the HER and OER processes. The designed Cu3P-Cu2O/NPC catalyst demonstrates low overpotentials and high current densities, making it a promising electrocatalyst for future industrial applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Yong An, Xue Han, Yuyang Liu, Alowasheeir Azhar, Jongbeom Na, Ashok Kumar Nanjundan, Shengping Wang, Jingxian Yu, Yusuke Yamauchi
Summary: Current solid-state polymer electrolytes (SPEs) for high-performance lithium-ion batteries have limitations including low ionic conductivity, low Li+ transference number, poor electrode/electrolyte interface contact, and poor long-term stability of Li metal.@AllArgsConstructor, in-depth research on improving these aspects is crucial for the commercialization of SPEs and the development of safe, high-performance lithium-ion batteries.
Article
Nanoscience & Nanotechnology
Shayan Parhizkar, Maximilian Prechtl, Anna Lena Giesecke, Stephan Suckow, Sophia Wahl, Sebastian Lukas, Oliver Hartwig, Nour Negm, Arne Quellmalz, Kristinn Gylfason, Daniel Schall, Matthias Wuttig, Georg S. Duesberg, Max C. Lemme
Summary: This article describes the study of low-cost, easily integrable photodetectors based on the two-dimensional material PtSe2, which can operate in a higher wavelength range and has high responsivity and low response time. The PtSe2 photodetectors integrated by direct growth outperform those manufactured by the standard 2D layer transfer method. PtSe2 shows promising potential for optoelectronics and photonic-integrated circuits due to its infrared responsivity, chemical stability, selective and conformal growth at low temperatures, and high carrier mobility.
Article
Chemistry, Physical
Yueqi Kong, Cheng Tang, Chang Lei, Ashok K. Nanjundan, Shuimei Chen, Nashaat Ahmed, Dmitrii Rakov, Aijun Du, Xiaodan Huang, Chengzhong Yu
Summary: This study demonstrates a strategy of compromised electron-donating substitution to achieve two-electron transfer in 1-aminopyrene, resulting in high specific capacity and excellent performances in aluminium-ion batteries.
Article
Chemistry, Physical
Hugo Nolan, Christian Schroder, Marc Brunet-Cabre, Filippo Pota, Niall McEvoy, Kim McKelvey, Tatiana S. Perova, Paula E. Colavita
Summary: The study investigates the effects of N-functionalities on MoS2 supported on carbon for hydrogen evolution reaction (HER) performance. It is found that the presence of pyridinic-N groups at the carbon support suppresses HER activity at high pH due to the modulation of deprotonation and lone-pair availability. This suggests important implications for the design of heterostructured electrocatalysts to control performance in HER electrocatalysis by exploiting synergistic/inhibitory behaviors.
Article
Chemistry, Physical
Daire Tyndall, Michael John Craig, Lee Gannon, Cormac McGuinness, Niall McEvoy, Ahin Roy, Max Garcia-Melchor, Michelle P. Browne, Valeria Nicolosi
Summary: Nickel-iron layered double hydroxides are highly active catalysts for the oxygen evolution reaction, but their stability within the active voltage window is limited. This study identifies the source of catalyst instability by tracking changes in the material during OER activity. In-situ and ex-situ Raman analyses reveal long-term effects on catalyst performance due to crystallographic phase changes. Electrochemically stimulated compositional degradation and leaching of Fe metals from highly active edge sites are identified as the main causes of activity loss.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Rita Tilmann, Cian Bartlam, Oliver Hartwig, Bartlomiej Tywoniuk, Nikolas Dominik, Conor P. Cullen, Lisanne Peters, Tanja Stimpel-Lindner, Niall McEvoy, Georg S. Duesberg
Summary: The interest in 2D materials is increasing due to the discovery of compounds with unique electrical, optical, chemical, and thermal characteristics. We report the presence of polymeric adlayers on layered transition metal dichalcogenides (TMDs), which are not easily identifiable using common analytic methods. These atomically thin layers consist of hydrocarbons, which preferentially adsorb to the hydrophobic surfaces of TMDs. The presence of polymeric films on 2D materials has implications for their investigation, processing, and applications.
Article
Nanoscience & Nanotechnology
Julia Lawless, Oisiin McCormack, Joshua Pepper, Niall McEvoy, A. Louise Bradley
Summary: Nanoparticle-on-mirror systems are a reliable method of compressing light into sub-nanometer volumes, and graphene can be used as a spacer in such systems to modulate the plasmonic modes. In this study, a simple system consisting of a gold nanosphere on top of a gold mirror separated by a graphene monolayer is investigated. The results show that the plasmonic response of the coupled nanosphere can be controlled by doping the graphene and adjusting the gap size, and at high doping levels, the plasmon energies can split due to the interaction between charge-transfer plasmon and gap plasmon. This study provides support for the unification of theories proposed by previous works.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Minjun Kim, Liang Ma, Zhibin Li, Wenjie Mai, Nasim Amiralian, Alan E. Rowan, Yusuke Yamauchi, Aimiao Qin, Rana Arslan Afzal, Darren Martin, Ashok Kumar Nanjundan, Jinliang Li
Summary: In this study, nanosheet-like sorghum biomass is obtained by a mild alkaline treatment and high-energy ball milling. N, S co-doped hard carbon (NSSC) with the nanosheet morphology is synthesized by a direct-carbonization of the nanosheet-like sorghum biomass mixed with thiourea. The optimal annealing temperature is necessary to balance efficient heteroatom-doping and the level of carbonization, and the resulting NSSC-600 demonstrates excellent K-ion storage performance with high reversible specific capacity and outstanding stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Kuanysh Zhussupbekov, Lida Ansari, Kenan Elibol, Ainur Zhussupbekova, Jani Kotakoski, Igor V. Shvets, Georg S. Duesberg, Paul K. Hurley, Niall Mcevoy, Cormac O'Coileain, Farzan Gity
Summary: The properties and performance of platinum diselenide (PtSe2) films, synthesized by thermally assisted conversion, were investigated using various spectroscopic and microscopic methods. The presence of distinct edge states was observed, and the origin of these states was investigated using theoretical tools and atomistic modeling. The results showed that the edges of polycrystalline films can have semiconducting or semimetallic properties depending on their configuration. The study also explored the potential of using a monomaterial heterojunction based field-effect transistor, which demonstrated excellent performance due to the critical role of the edge states in facilitating carrier transport.
APPLIED MATERIALS TODAY
(2023)
Article
Green & Sustainable Science & Technology
Owen Noonan, Yueqi Kong, Yang Liu, Mohammed Kalantari, Ashok Kumar Nanjundan, Xiaodan Huang, Chengzhong Yu
Summary: Graphene foam materials have been widely studied for their conductive and porous structures, which make them promising for capacitive deionization applications. However, their current salt adsorption capacities are limited. In this study, hierarchical porous nitrogen-doped spray-dried graphene material with high salt adsorption capacity was successfully synthesized, offering potential for the development of graphene-based materials in CDI applications.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Arne Quellmalz, Simon Sawallich, Maximilian Prechtl, Oliver Hartwig, Georg S. Duesberg, Max C. Lemme, Frank Niklaus, Kristinn B. Gylfason
Summary: In this paper, a generic methodology for the large-area transfer of 2D materials and their heterostructures is presented. The approach utilizes adhesive wafer bonding and processes readily available in most large-scale semiconductor manufacturing lines. Experimental results demonstrate successful transfer and formation of different composite structures, indicating an important step towards the commercial use of 2D materials in optics and photonics.
2D PHOTONIC MATERIALS AND DEVICES V
(2022)
Review
Green & Sustainable Science & Technology
Chinmayee Padwal, Hong Duc Pham, Sagar Jadhav, Thu Trang Do, Jawahar Nerkar, Linh Thi My Hoang, Ashok Kumar Nanjundan, Sagadevan G. Mundree, Deepak P. Dubal
Summary: The demand for rechargeable lithium-ion batteries (LIBs) in modern electronics and electrification of transportation has led to a significant increase in solid waste. Recycling strategies using deep eutectic solvents (DESs) provide an economical and environmentally friendly solution for recovering metals from spent LIBs. The mechanism and performance of DES in terms of leaching efficiency, time, temperature, and metal recovery rates are discussed. Opportunities for further development of DES for metal recovery in various industries are also outlined.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Rana Arslan Afzal, Jordan Pennells, Yusuke Yamauchi, Pratheep K. Annamalai, Ashok Kumar Nanjundan, Darren J. Martin
Summary: This study investigates how variations in lignocellulosic biomass affect the structure and properties of sorghum-derived hard carbon materials. Different sections of sorghum biomass were carbonised and analyzed. The results show that lignin and ash content, as well as the hierarchical native plant cell wall morphology, influence the structure and properties of the resultant carbon. The findings contribute to a better understanding of the relationship between biomass composition and carbon material properties.
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.
