Article
Materials Science, Composites
Xingwang Hou, Jiayue Wen, Wenjian Wang, Weiping Ye, Yue Zhang, Shuai Wang, Kunyao Cao, Rui Zhao, Weidong Xue
Summary: In this study, hollow-structured hydroxy vanadium oxide (VOOH) was constructed, and VOOH@MXene composite material was prepared through electrostatic self-assembly. The composites have effective attenuation and absorption of electromagnetic waves. The excellent conductivity of MXene compensates for the low conductivity of VOOH, and the hollow structure of VOOH prevents the stacking of MXene sheet layers and improves the impedance matching problem. The VOM_10 composite exhibits good microwave absorption performance with a minimum reflection loss of -34.9 dB and a maximum effective absorption bandwidth of 4.08 GHz. The preparation of VOOH@MXene composites using electrostatic self-assembly and the construction of a hollow structure provide a new idea for the study of lightweight and high-performance wave absorption materials.
COMPOSITES COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Zhen Xiang, Xiao Wang, Xiang Zhang, Yuyang Shi, Lei Cai, Xiaojie Zhu, Yanyan Dong, Wei Lu
Summary: In this study, multifunctional nano/microstructured 2D Ti3CNTx MXene-based composites were constructed using a controlled self-assembly strategy for efficient electromagnetic attenuation and Joule energy conversion application. The optimized nanocomposites exhibited high-performance electromagnetic wave absorption, electromagnetic shielding, favorable flame-retardant properties, and high infrared shielding versatility.
Article
Materials Science, Ceramics
Peng He, Meng-Jiao Zheng, Qi Liu, Zi-Yi Liu, Ru-Zhong Zuo, Wen-Qiang Cao, Jie Yuan, Mao-Sheng Cao
Summary: MXenes are highly sought-after for their exceptional electrical conductivity, mechanical stability, and other properties, making them the leading materials for EM wave absorption. The crystal and electronic structures of MXene hybrids, as well as their EM functions, are systematically arranged and their relationship revealed. Major challenges and future directions in this rapidly expanding field are proposed.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Meng Yu, Ying Huang, Xudong Liu, Kaihang She, Xiaoxiao Zhao, Wanqing Fan, Xiaofang Ma, Junhui Zou, Tiehu Li
Summary: The rational and effective combination of multicomponent materials and ingenious microstructure design have been successfully applied in the development of efficient electromagnetic wave absorbers. By using MXene as the aerogel matrix and modifying it with sea urchin-like magnetic Co/N-doped carbon@polyaniline (Co-NC@PANI), a microwave absorber with high efficiency and excellent performance was prepared. The multicomponent interfacial polarization, heterostructure, three-dimensional (3D) lightweight porous structure, and electromagnetic synergy strategy enabled the MXene-based aerogel modified by Co-NC@PANI (MCoP) to exhibit surprising EMW absorption properties.
Review
Chemistry, Physical
Xiaomeng Guan, Zhihong Yang, Ming Zhou, Le Yang, Reza Peymanfar, Bagher Aslibeiki, Guangbin Ji
Summary: This article reviews the construction strategies, electromagnetic wave conversion mechanism, and applications of MXene materials, highlighting their unique layered structure and outstanding chemical and physical properties. Through meticulous design and interdisciplinary approach, MXene materials are expected to become one of the smart tunable wave absorbers.
Article
Nanoscience & Nanotechnology
Zehua Zhou, Qianqian Zhu, Yue Liu, Yan Zhang, Zirui Jia, Guanglei Wu
Summary: This article proposes a simple method for preparing multifunctional NiCo/C aerogels with excellent electromagnetic wave absorption properties, superhydrophobicity, and self-cleaning by water-induced NiCo-MOF self-assembly. The impedance matching of the 3D structure and the interfacial polarization provided by CoNi/C, as well as the defect-induced dipole polarization, are the primary contributors to the broadband absorption. As a result, the prepared NiCo/C aerogels have a broadband width of 6.22 GHz at 1.9 mm. Due to the presence of hydrophobic functional groups, CoNi/C aerogels improve stability in humid environments and obtain hydrophobicity with large contact angles > 140 degrees. This multifunctional aerogel has promising applications in electromagnetic wave absorption and resistance to water or humid environments.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Fubin Liu, Cuiping Li, Geoffrey I. N. Waterhouse, Xiaohui Jiang, Zhiming Zhang, Liangmin Yu
Summary: The study successfully fabricated lightweight magnetic polyvinylidene fluoride/ferric oxide/polyaniline nanofiber foams with excellent microwave absorption performance, which can be precisely tuned by varying the diameter of the polyaniline nanofibers. Moreover, the effective absorption bandwidth of the composite material could be adjusted by changing the absorber thickness.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xuejiao Zhou, Sichen Li, Maolin Zhang, Xiaoyan Yuan, Junwu Wen, He Xi, Hongjing Wu, Xiaohua Ma
Summary: In this study, MXene/PEO aerogels with a two-hierarchically porous structure were successfully fabricated. The 3D porous network of MXene/PEO aerogels was assembled by MXene layers featuring a secondary pore structure, which is unique compared to previous studies. The microstructure of MXene/PEO aerogels, and thus their complex permittivity and impedance matching, can be controlled by the amount of added PEO. The resulting MXene/PEO aerogels exhibited excellent electromagnetic wave absorption performance, with a broad effective absorption bandwidth of 5.20 GHz and a minimum reflection loss value of -50.8 dB.
Article
Nanoscience & Nanotechnology
Yan Guo, Dedong Wang, Tiantian Bai, Hu Liu, Yanjun Zheng, Chuntai Liu, Changyu Shen
Summary: This study demonstrated the successful preparation of NiFe2O4 nanoparticles embedded MXene nanosheets through self-assembling technique, which significantly improved the electromagnetic wave absorption performance. The presence of magnetic NiFe2O4 nanoparticles effectively prevented the self-stacking of MXene nanosheets, leading to enhanced conduction loss and interface polarization loss in the composite materials.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Physical
Jian Xu, Wenjun Ma, Peng He, Yukang Zhou, Xiaoyun Liu, Yi Chen, Peiyuan Zuo, Qixin Zhuang
Summary: This study reports a facile water-induced self-assembly method to develop 3D hierarchical magnetic nanocrystal@C@MXene hybrids with tunable network structures. The hierarchical structure design creates efficient synergy between magnetic and dielectric components, resulting in impressive microwave absorption performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Nanoscience & Nanotechnology
Bo Dai, Yong Ma, Feng Dong, Jia Yu, Mingliang Ma, Hamdy Khamees Thabet, Salah M. El-Bahy, Mohamed M. Ibrahim, Mina Huang, Ilwoo Seok, Gourisankar Roymahapatra, Nithesh Naik, Ben Bin Xu, Jianxu Ding, Tingxi Li
Summary: With the development of wireless communication technology, electromagnetic pollution has become a pressing issue, demanding the development of efficient electromagnetic wave absorbing materials. This article examines the structure and performance of MXene and CPs, reviewing the current research progress and absorption mechanism.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Engineering, Environmental
Lei Cai, Fei Pan, Xiaojie Zhu, Yanyan Dong, Yuyang Shi, Zhen Xiang, Jie Cheng, Haojie Jiang, Zhong Shi, Wei Lu
Summary: In this study, layered N-doped MXene flakes and hollow Co-ZIF particles were successfully fabricated using a controllable cooperative protection etching strategy and electrostatic self-assembly technology. The resulting microwave absorption hybrids showed ultrathin thickness, strong electromagnetic wave absorption capability, and low filler loading, outperforming similar hybrids reported in the literature.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Shuo Zhang, Zirui Jia, Yan Zhang, Guanglei Wu
Summary: A novel composite preparation strategy based on electrostatic spinning methods has been proposed in this study to design dendritic nanofibers using two-dimensional metal carbide or nitride materials (MXenes) as the matrix and embedded magnetic nanoparticles as magnetic loss units. The resulting multidimensional nanocomposites exhibit exceptional conduction loss, magnetic loss, and polarization loss capabilities due to interlaced carbon fiber networks, large-scale magnetically coupled networks, and multi-heterojunction interface structures. The composites achieve optimum reflection loss and a wide effective absorption bandwidth, making them potential lightweight and efficient electromagnetic wave protective fabric in harsh environments.
Article
Engineering, Environmental
Xiao Wang, Fei Pan, Lei Cai, Jie Cheng, Haojie Jiang, Yang Yang, Hongtao Guo, Zhong Shi, Ziming Xiong, Aming Xie, Huiyu Xu, Wei Lu
Summary: This study fabricates a three-dimensional dielectric cellulose nanofiber/Ti3C2Tx MXene carbon aerogel with magnetic Fe3O4 nanodiscs. The reduction process improves the aerogel's electromagnetic properties and elasticity, leading to excellent microwave absorption performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Na Zhang, Ting Liu, Yan Wang, Kaili Zhang, Meng Zong
Summary: This study developed sulfur-doped MXene-based nanocomposites with enhanced electromagnetic wave absorption ability by manipulating chemical composition, electromagnetic parameters, or impedance matching. The nanocomposites exhibited suitable conductivity, dipole polarization, interface polarization, and magnetic loss, resulting in enhanced absorption of electromagnetic waves.
ACS APPLIED NANO MATERIALS
(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.