Article
Polymer Science
Xing Jin, Chunfang Feng, Claudia Creighton, Nishar Hameed, Jyotishkumar Parameswaranpillai, Nisa Salim
Summary: This study attempted to produce low cost carbon fibers using textile grade polyacrylonitrile (Tex-PAN) fibers, and found that the tensile properties of carbon fibers from Tex-PAN were comparable with those of commercial PAN fibers. Tex-PAN precursor fibers may be an indispensable candidate for low cost carbon fiber production.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Engineering, Chemical
Isabela L. R. Cintra, Mauricio R. Baldan, Erick G. R. Anjos, Thais F. Silva, Lilia M. Guerrini, Mirabel C. Rezende, Edson C. Botelho
Summary: Blankets based on blends of PAN/lignin were processed via electrospinning and then thermally treated to produce carbon nanofiber samples. The best stabilization and carbonization parameters were determined through analysis techniques such as DSC, TGA, SEM, and FT-IR. The results showed the feasibility of producing carbon blankets but with low carbon yield and a decrease in fiber diameter. Characterization of the carbonized blankets included electrical conductivity, chemical structure, crystallographic ordering, and morphology analysis.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xing Jin, Ahmed Al-Qatatsheh, Karamat Subhani, Nisa Salim
Summary: In this study, 3D mesoporous graphene/carbon nanofibers (G/CNF) were prepared for the first time from polyacrylonitrile/poly(4-vinyl phenol) (PAN/PVPh) electrospun fibers. The conversion of soft carbon nanofibers to hard nanofiber aerogels was achieved through specific interactions, resulting in excellent mechanical, electrical, and sorption properties.
Article
Construction & Building Technology
Bing Liu, Xuanyu Zhang, Junpeng Ye, Xiaoyan Liu, Zhiheng Deng
Summary: This study investigated the effect of microfibers and macrofibers on the mechanical properties of coral concrete. The results showed that both types of fibers can improve the mechanical properties, with microfibers mainly affecting the stage before macrocracks formation and macrofibers mainly exerting positive effects after macrocracks appeared. The hybrid addition of microfibers and macrofibers further enhanced the mechanical properties.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Polymer Science
Xiyuan Zhang, Takashi Kitao, Ami Nishijima, Takashi Uemura
Summary: Polyacrylonitrile (PAN) nanosheets with unimolecular thickness were successfully synthesized by cross-linking polymerization in the 2D nanospaces of a metal-organic framework. The ultrathin 2D network structure inhibited crystallization and allowed for efficient thermal transformation reaction of PAN. The amorphous nature of the PAN nanosheets facilitated thermal dehydroaromatization reactions to yield a ladder polymer structure with a highly extended conjugated system. Notably, further carbonization of this ladder polymer produced graphitic carbon with a highly ordered structure due to the well-defined precursor structure.
Article
Chemistry, Analytical
Zhao Jin, Xiaohua Zuo, Xiangyi Long, Zhengwei Cui, Guanming Yuan, Zhijun Dong, Jiang Zhang, Ye Cong, Xuanke Li
Summary: This study found that introducing C9 resin could improve the flowability and oxidative reaction capability of naphthalene pitch, enhancing the physical properties of carbon fibers and potentially reducing production costs.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Chemistry, Multidisciplinary
Roman V. Toms, Mikhail S. Balashov, Alexander Yu. Gervald, Nikolay I. Prokopov, Anna V. Plutalova, Elena V. Chernikova
Summary: We have successfully synthesized random, gradient, and block-gradient copolymers containing 3.4-10.2 mol. % of acrylamide using dibenzyl trithiocarbonate and batch/semibatch polymerization. By using differential scanning calorimetry and Fourier transform infrared spectroscopy, we have revealed the influence of monomer sequence on the cyclization behavior of poly(acrylonitrile-co-acrylamide). Our findings show that the atmosphere plays a significant role in the cyclization behavior of the copolymers, with intramolecular cyclization being the main process in argon atmosphere and oxidation reactions dominating in air atmosphere.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
Tianshuai Ma, Wei Wang, Ruiqi Shao, Hui Deng, Wei Mai, Tianyu Li, Wanwei Jiang, Feng Tian, Zhiwei Xu
Summary: This study investigates the impact of radial heterostructure on the properties of carbon fibers and proposes a new process combination of gamma-irradiation and heat treatment to improve the microstructure of fibers. The results show that the coordination of irradiation and heating significantly improves the hardness and structure of fibers. Atomistic simulations also explain the mechanism behind the structural improvement.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Ziwen Liu, Srimali Hanning, Yuchen Su, Mohamed Bouhrara, Thomas Gries
Summary: Lightweight materials are gaining importance for their potential in reducing energy consumption. Carbon fibers and fiber reinforced composites have excellent mechanical properties and low density. However, their high production costs limit their applications. This article presents an innovative approach to reduce the process time and production costs by using a combination of aqueous KMnO4- and atmospheric N-2-treatment. The results show that this approach can accelerate the desired reactions, skip partial steps, and reduce the activation temperature, leading to energy and cost reductions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Environmental Sciences
Fatemeh Sadat Mousavi, Komeil Nasouri
Summary: In this study, 3D carbon fibers (CFs) were prepared from Luffa sponge wastes through H3PO4 impregnation and low-temperature carbonization process. The optimized CFs showed ideal structure for oil sorption and could be selectively used for oil/water separation applications.
ENVIRONMENTAL POLLUTION
(2023)
Article
Materials Science, Composites
Yue Qian, Jing Zhong, Jinping Ou
Summary: By modifying the matrix of basalt fiber-reinforced polymer (BFRP) with MXene nanosheets using a vacuum-assisted resin-transfer molding (VaRTM) process, the flexural strength and modulus of the BFRP laminate were significantly improved. The BFRP composites enhanced with MXene nanosheets also demonstrated exceptional long-term stability in a hostile alkali environment.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Textiles
Dalsu Choi, Chae Bin Kim
Summary: Diphenylamine (DPA) was used as an additive to improve the properties of polyethylene (PE)-derived carbon fibers (CFs), resulting in increased char yield, graphitic structure, and melt-spinnability. The PE/DPA-derived CFs exhibited high mechanical strength and modulus.
FIBERS AND POLYMERS
(2022)
Article
Materials Science, Composites
Xiaochu Lin, Fajun Yi, Weihua Xie, Chenghai Xu, Songhe Meng
Summary: In this study, a radiation-heating mechanical testing machine was designed to test the in-plane compression properties of fiber-reinforced plastic composites at different degrees of pyrolysis and temperatures. The results showed that the higher the temperature, the higher the weight-loss rate, the higher the graphitization degree of the specimen, and the lower the degree of disorder of the carbon matrix. This study provides a reference for the refined design of solid rocket motor nozzles.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Abbas Ghanbari, Shayan Seyedin, Mohammadreza Nofar, Amir Ameli
Summary: This research focuses on lightweight products for the transportation industry, introducing recycled carbon fibers and elastomers to polypropylene matrix to improve strength and toughness. The addition of 20 wt% recycled carbon fibers led to significant enhancements in heat distortion temperature, tensile strength, and stiffness. Fractography analysis revealed that the presence of fibers predominantly governs the impact resistance characteristics of the composites.
POLYMER COMPOSITES
(2021)
Article
Chemistry, Multidisciplinary
Zongyu Wang, Huimin Luo, Halie J. Martin, Tao Wang, Yifan Sun, Mark A. Arnould, Bishnu P. Thapaliya, Sheng Dai
Summary: The fabrication of polyacrylonitrile (PAN)-based composite fibers plays a crucial role in high-performance carbon fiber manufacturing. Ionic liquids (ILs) have been explored for their plasticizing properties, and their impact on the elasticity and stretchability of PAN/ILs fibers can be controlled by tuning the anion structure of ILs.
Article
Chemistry, Multidisciplinary
Heng Zhao, Dhwanil Trivedi, Morteza Roostaeinia, Xue Yong, Jun Chen, Pawan Kumar, Jing Liu, Bao-Lian Su, Steve Larter, Md Golam Kibria, Jinguang Hu
Summary: Photorefining of biomass and its derivatives to value-added chemicals offers a solution to global energy shortage and environmental issues. In this study, efficient and selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) was achieved using visible light-driven photocatalysis over cocatalyst-free ZnIn2S4 nanosheets with crystal facet engineering. The use of (110) and (102) crystal facets allowed for the spatial accumulation of photogenerated electrons and holes, enabling a two-electron oxygen reduction reaction (2e-ORR) for H2O2 generation and HMF oxidation into DFF. The research also demonstrated the importance of improving the photostability of ZnIn2S4 through sulfur substitution, which sheds new light on biomass valorization via photorefinery.
Article
Chemistry, Physical
Muflih A. Adnan, Ali Shayesteh Zeraati, Shariful Kibria Nabil, Tareq A. Al-Attas, Karthick Kannimuthu, Cao-Thang Dinh, Ian D. Gates, Md Golam Kibria
Summary: This research introduces a cation-infused ultrathin solid polymer electrolyte (CISPE) that addresses both challenges of CO2 electroreduction, using a bidirectional ion transport mechanism and suppressed cathode flooding. The deposition of CISPE enables a record high full-cell energy efficiency of 28% for one-step CO2 electrolysis to ethylene, with stable operation for approximately 110 hours. This work provides a versatile design paradigm for functional polymer electrolytes, enabling stable and efficient electrolysis of high-value feedstock chemicals and fuels using low-cost catalysts.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Rohan Jena, Sohini Bhattacharyya, Neha Bothra, Varchaswal Kashyap, Swapan K. K. Pati, Tapas Kumar Maji
Summary: In this study, bimetallic Ni x Co1-x nanoparticles and core-shell Ni(x)Co(1-x)@Ni x Co1-x O nanoparticles stabilized on N-doped carbon nanotubes were prepared and characterized. The electrocatalyst exhibited excellent performance in oxygen evolution reaction, oxygen reduction reaction, and hydrogen evolution reaction. The structure of Ni x Co1-x @Ni x Co1-x O/NCNT was found to be crucial for its electrochemical activity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Shariful Kibria Nabil, Soumyabrata Roy, Wala Ali Algozeeb, Tareq Al-Attas, Md Abdullah Al Bari, Ali Shayesteh Zeraati, Karthick Kannimuthu, Pedro Guerra Demingos, Adwitiya Rao, Thien N. Tran, Xiaowei Wu, Praveen Bollini, Haiqing Lin, Chandra Veer Singh, James M. Tour, Pulickel M. Ajayan, Md Golam Kibria
Summary: A bifunctional gas diffusion electrode (BGDE) is reported for separating and electrochemically reducing carbon dioxide (CO2) in a low-concentration stream. The BGDE demonstrated selective production of ethylene (C2H4) using high-density-polyethylene-derived porous carbon (HPC) as a physisorbent and polycrystalline copper as a conversion catalyst. Molecular dynamics simulation and gas permeability assessment revealed the mechanism behind the selective performance.
ADVANCED MATERIALS
(2023)
Article
Ecology
Sohini Bhattacharyya, Andrew C. Eagar, Jean Engohang-Ndong, Laura G. Leff
Summary: This study investigates the role of freshwater macroinvertebrate gut microbiomes in harboring and disseminating antibiotic resistance genes (ARGs). The results indicate that macroinvertebrate guts may serve as reservoirs of ARGs, while the abundance of ARGs differs among functional feeding groups. There is a correlation between bacterial community composition and ARG abundance, but freshwater macroinvertebrates may not serve as vectors of ARGs.
FRESHWATER BIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Pawan Kumar, Karthick Kannimuthu, Ali Shayesteh Zeraati, Soumyabrata Roy, Xiao Wang, Xiyang Wang, Subhajyoti Samanta, Kristen A. Miller, Maria Molina, Dhwanil Trivedi, Jehad Abed, Astrid Campos Mata, Hasan Al-Mahayni, Jonas Baltrusaitis, George Shimizu, Yimin A. Wu, Ali Seifitokaldani, Edward H. Sargent, Pulickel M. Ajayan, Jinguang Hu, Md Golam Kibria
Summary: This study presents a macromolecule-assisted synthesis approach for single atom catalysts (SACs) that allows for the production of high-density cobalt single atoms with exceptional catalytic properties. The resulting SACs, embedded within a highly porous carbon network, exhibited significantly enhanced electrocatalytic activity for the oxygen evolution reaction (OER), with long-term stability. Experimental and theoretical results provide valuable insights into the mechanisms underlying the improved catalytic performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Biomaterials
Zhangkang Li, Xiao He, Hitendra Kumar, Jaemyung Shin, Chijie Guo, Brett Abraham, Ali Shayesteh, Md Kibria, Qingye Lu, Huiyu Bai, Keekyoung Kim, Jinguang Hu
Summary: A novel biofunctional and tough hydrogel, PVA-SbQ, is developed through visible light photo-crosslinking of polyvinyl alcohol. The high-resolution PVA-SbQ hydrogels can be rapidly produced via laser direct-writing without the use of toxic crosslinkers, and they demonstrate excellent biocompatibility. The hydrogel also possesses superior properties such as adhesive strength, swelling, self-healing, and photo-tunability.
BIOMATERIALS ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Salma H. Alhashim, Sohini Bhattacharyya, Raphael Tromer, Ahmad Kabbani, Ganguli Babu, Eliezer Fernando Oliveira, Douglas S. Galvao, Pulickel M. Ajayan
Summary: The efficient recycling of Lithium-ion batteries (LiBs) is vital due to their widespread use and to tackle battery waste. Deep Eutectic Solvents (DESs) have great potential for hydrometallurgical recycling of LiB cathodes, but their leaching mechanism is not well understood. This study investigates the leaching mechanism of transition metals from commonly used LiB cathode materials in an ethylene glycol (EG):choline chloride (ChCl) based DES. The results suggest that the DES facilitates the leaching process through the formation of chlorometalate complexes.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Sathvik Ajay Iyengar, Sohini Bhattacharyya, Soumyabrata Roy, Nicholas. R. R. Glavin, Ajit. K. K. Roy, Pulickel. M. M. Ajayan
Summary: The current silicon technology is at its performance limits and the global chip shortage encourages the commercialization of other electronic materials. Among them, two-dimensional materials like TMDs show potential to supplement silicon in CMOS processing. However, the difficulty in producing large-scale wafer forms is a major hurdle. This perspective discusses the commercialization potential of 2D materials, explores unconventional fabrication techniques, and proposes a lab-to-fab workflow for TMDs.
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)
Article
Chemistry, Applied
Jae Min Park, Milan Jana, Sang Ha Baek, Taehun Kang, Peixun Xiong, Jeong Hee Park, Jun Soo Kim, Ali Shayesteh Zeraati, Mikhail Shekhirev, Paul V. Braun, Yury Gogotsi, Ho Seok Park
Summary: The MXene ink hosting Zn metal anodes (MX@Zn) has been developed for high-performance and patternable Zn metal full batteries. The MX@Zn electrode shows improved stability and lower overpotentials compared to bare Zn and CC@Zn electrodes. The MX@Zn | MnO2 full cells exhibit a high specific capacity of 281.9 mA h g-1, with 50% capacity retention and 79.7% initial capacity after 200 cycles.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Di Pu, Amirreza Panahi, Giovanniantonio Natale, Anne M. Benneker
Summary: In this study, a theoretical model was developed and experiments were conducted to investigate the thermophoretic behavior of colloids in DI water. The hydration entropy effect was found to play a crucial role in the thermophoresis of colloidal particles, and this finding opens up new possibilities for developing trapping and separation techniques.
Article
Biochemical Research Methods
Matina Nooryani, Anne M. Benneker, Giovanniantonio Natale
Summary: Particles can be manipulated by self-generated concentration gradients in a PDMS-based microfluidic platform, creating a temporary exclusion zone. The interfacial chemistry of the platform influences particle movement and can be used for designing lab-on-a-chip-based sorting of colloidal particles.
Article
Chemistry, Multidisciplinary
Jiu Wang, Heng Zhao, Stephen R. Larter, Md Golam Kibria, Jinguang Hu
Summary: We demonstrate the feasibility of cellulose photobiocatalytic conversion with >75% cellulose conversion and >75% gluconic acid selectivity from converted glucose. This process is realized via a one-pot sequential cascade reaction by cellulase enzymes and a carbon nitride photocatalyst that can selectively convert glucose into gluconic acid. This work provides a good example of direct cellulose photobiorefining into value-added chemicals through a photo-bio hybrid system.
CHEMICAL COMMUNICATIONS
(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.
