Article
Materials Science, Ceramics
Yanjun Wang, Meijie Yu, Chaohui Huang, Qi Zheng, Haiping Zhou, Ze Zhang, Shengyao Zhao
Summary: In this study, AZO nanoparticles with different doping concentrations were successfully prepared by a one-step hydrothermal synthesis method, and their crystal structure, morphology, infrared absorption, infrared emission, and microwave loss properties were analyzed in detail. With the increase of the aluminum doping concentration, the grain size of AZO gradually increases, and the infrared emissivity first decreases and then increases, showing some fluctuations.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jiayi Wang, Shuhang Hu, Qi Tang, Jian Xu, Nianxi Xu, Shansheng Yu, Xiaoyi Wang, Hongwei Tian
Summary: In this study, rGO/SiC/CoFe2O4 composite materials were prepared by combining SiC and CoFe2O4 with rGO. The electromagnetic properties of the composites were controlled by varying the CoFe2O4 content. Among them, the sample with a CoFe2O4 content of 1.5 g exhibited the best microwave absorption performance.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Rajesh Kumar, Sumanta Sahoo, Ednan Joanni
Summary: With the rapid progress in science and technology, the demand for electromagnetic interference (EMI) shielding and microwave (MW) absorption materials has been increasing. Layered materials, such as graphene, MXenes, and transition metal dichalcogenides (TMDs), have drawn significant research attention due to their conductivity, surface area, and porosity. The integration of these materials with other magnetic and dielectric constituents further enhances their electromagnetic absorption ability. This review article focuses on the recent progress, mechanisms, and future perspectives of layered materials in EMI shielding and MW absorption applications.
Article
Chemistry, Multidisciplinary
Chi Zhang, Yao Wang, Yun Chen, Yatao Wang, Peng Wang, Qiong Wu
Summary: This paper investigates the synthesis of nanocomposites made of two kinds of magnetic nanoparticles using a special Co nanomatrix. The results show that embedding Fe3O4 nanoparticles into the branches of C-O clusters allows for close contact between the two types of particles and ensures optimal electromagnetic and magnetic properties.
Article
Engineering, Environmental
Yuan Fang, Wenjian Wang, Shuai Wang, Xingwang Hou, Weidong Xue, Rui Zhao
Summary: This study investigated the factors affecting the performance of electromagnetic wave absorption materials and proposed a new quantitative model using the materials genome methodology. The results provide insights for the design of conduction-type EM wave absorption materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Vivek Pratap, Amit K. Soni, Himangshu B. Baskey, S. M. Abbas, A. M. Siddiqui, N. Eswara Prasad
Summary: In this study, radar absorbing composites were designed using various ratios of U-type barium hexaferrite and Gamma iron oxide within an epoxy resin system. The composites exhibited excellent electromagnetic absorption properties, with potential applications in strategic and stealth technologies.
SOLID STATE SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Lu Chen, Youbing Li, Biao Zhao, Shanshan Liu, Huibin Zhang, Ke Chen, Mian Li, Shiyu Du, Faxian Xiu, Renchao Che, Zhifang Chai, Qing Huang
Summary: Electromagnetic (EM) wave pollution is harmful and it is crucial to develop new electromagnetic wave absorbing materials. Magnetic MAX phases with high conductivity and nanolaminated structure have attracted attention as potential candidates. Two new magnetic MAX phases were successfully synthesized by replacing Al atoms in the A sites with Fe atoms. These MAX phases exhibit ferromagnetic behavior and dual electromagnetic absorption mechanisms including dielectric and magnetic loss. The minimum reflection loss of one of the phases is -44.4 dB at 6.56 GHz with 3 mm thickness, and the effective bandwidth is 2.48 GHz. The electromagnetic wave absorption properties indicate the importance of magnetic loss along with dielectric loss. This work shows a promising composition-design strategy for developing MAX phases with good EM wave absorption performance by regulating both dielectric and magnetic loss simultaneously.
Article
Materials Science, Multidisciplinary
Moustafa Ahmed, Ahmed Bakry, Essam R. Shaaban
Summary: This study synthesized (In1-xCrx)(2)O-3 powders and thin films with different Cr doping concentrations using chemical reactions and investigated the effects of Cr concentration on the structure and optical properties of In(2)O(3 )layers. The results showed a blue shift in the optical band gap with increasing Cr doping concentration, indicating the potential for tunability in the structural and optical properties of the thin films.
Article
Engineering, Environmental
Jinkun Liu, Zirui Jia, Wenhui Zhou, Xuehua Liu, Chuanhui Zhang, Binghui Xu, Guanglei Wu
Summary: The study introduces a novel absorber of CuFe2O4/MoS2 composite, which combines magnetic ferrite CuFe2O4 with 2D MoS2 nanosheets to achieve a wide effective absorption bandwidth. The cooperative interaction of dielectric and magnetic loss results in effective absorption of electromagnetic waves in the entire Kuband and part of the X-band. This work presents a strategy for obtaining novel high-performance absorbers.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Ben Bai, Yuping Zhu, Junfeng Miao, Xue Wang, Shuguang Bi, Lijuan Kong, Wanshuang Liu, Liying Zhang
Summary: Geopolymer nanocomposites prepared with SiO2@Fe3O4 showed improved EMW absorbing performance, with wider absorption bandwidth and lower reflection loss, attributed to the synergistic effect of dielectric loss and magnetic loss.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Condensed Matter
E. Vallejo, P. A. Lopez-Perez
Summary: In this study, the adsorption of CO2 on a five-vacancy graphene surface was investigated using density functional theory. The selectivity of this surface for CO2 compared to N-2 was also analyzed. The results showed strong chemical adsorption for both CO2 and N-2, with distinct electronic structures and charge transfer mechanisms observed after CO2 adsorption.
SOLID STATE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Congyi Qian, Xiaohui Liang, Mei Wu, Xingxin Zhang
Summary: By adjusting the ratio of Fe3O4 and rGO, a lightweight microwave-absorbing material with a strong electromagnetic-absorption capability of practical significance in the field of electromagnetic compatibility was obtained.
Article
Materials Science, Multidisciplinary
Mian Li, Qin Zhou, Huajun Song, Yi Lu, Mengjie Lu, Xiaoying Lu, Ke Duan, Jie Weng
Summary: In this study, a novel electrically-magnetically bifunctional PMMA composite was developed, which exhibited excellent stimulus-responsive, mechanical properties, and cytocompatibility, showing great potential for bone tissue engineering.
Article
Chemistry, Physical
Guokai Liu, Lianjie Zhu, Yanmiao Yu, Mo Qiu, Hongjia Gao, Deyou Chen
Summary: WO3 nanoplates with abundant surface chemisorbed oxygen species were prepared by a simple hydrothermal method in the presence of PVP. The gas sensing properties of the WO3 nanoplates were systematically investigated, showing effective detections towards acetone and ammonia gases at different operating temperatures. The different sensing properties at different temperatures may be attributed to alteration in active oxygen species on the WO3 surfaces and distinct difference in bonding energies of acetone and ammonia molecules.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Sonia Sharma, Meghna Narayanan, Ravi Gautam, Raghavan Gopalan, P. Swaminathan
Summary: Comparison of conventional furnace sintering (FS) and spark plasma sintering (SPS) on zinc oxide and manganese doped zinc oxide properties showed that SPS is an effective process to induce defects in semiconductor oxides and modulate electronic and magnetic properties.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Automation & Control Systems
Jun Wu, Chaoyong Wu, Shuai Cao, Siu Wing Or, Chao Deng, Xinyu Shao
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2019)
Article
Engineering, Electrical & Electronic
Xianguo Liu, Mingji Zhang, Siu Wing Or, Siu Lau Ho
IEEE TRANSACTIONS ON MAGNETICS
(2019)
Article
Electrochemistry
Amrita Chatterjee, Siu Wing Or
ELECTROCHIMICA ACTA
(2020)
Article
Engineering, Electrical & Electronic
Wenzheng Xu, Ka Wing Chan, Siu Wing Or, Siu Lau Ho, Ming Liu
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2020)
Article
Engineering, Electrical & Electronic
Bin Zhou, Xiaolin Xu, Siu Wing Or, Canbing Li, Qiuwei Wu, Cong Zhang, Wenfang Li
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2020)
Article
Nanoscience & Nanotechnology
Luojiang Zhang, Siu Wing Or
Article
Engineering, Electrical & Electronic
Bin Zhou, Haoran Duan, Qiuwei Wu, Huaizhi Wang, Siu Wing Or, Ka Wing Chan, Yunfan Meng
Summary: This paper introduces a hybrid forecasting model based on semi-supervised generative adversarial network for short-term wind power and ramp event prediction. By decomposing wind energy data time series and employing semi-supervised regression, non-linear and dynamic behaviors are extracted to enhance forecasting accuracy, along with a self-tuning forecasting strategy for improved performance.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Ziqing Zhu, Ka Wing Chan, Siqi Bu, Siu Wing Or, Xiang Gao, Shiwei Xia
Summary: The study uses evolutionary game theory and replication dynamic equations to investigate factors affecting energy providers' willingness to use market power to increase bidding prices, revealing that factors such as load demand, severity of congestion, and price cap affect bidding strategy preferences.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2021)
Article
Engineering, Multidisciplinary
Kuan Zhang, Bin Zhou, Siu Wing Or, Canbing Li, Chi Yung Chung, Nikolai Voropai
Summary: This article proposes a method for multirenewable-to-hydrogen production and develops a capsule network forecasting model and a hierarchical coordinated control strategy to enhance the green H-2 production efficiency for hydrogen fueling stations.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Wenzheng Xu, Chi Ho Chan, Ka Wing Chan, Siu Wing Or, Siu Lau Ho, Ming Liu
Summary: Summary: This paper investigates the mathematical relationship between output harmonics and shoot-through states for single-phase Z-source inverters. A modified calculation scheme is proposed and validated through simulations and experiments. The findings are significant for the design of control strategies and modulation schemes for Z-source converters.
IET POWER ELECTRONICS
(2022)
Article
Automation & Control Systems
Zilin Li, Ka Wing Chan, Jiefeng Hu, Siu Wing Or
Summary: This article proposes an adaptive fault ride-through scheme for three-phase four-wire grid-forming inverters. It limits overcurrent by modifying voltage references and enables seamless transition between normal and grid fault conditions through adaptive virtual sequence resistances.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Computer Science, Information Systems
Guannan Li, Siu Wing Or, Ka Wing Chan
Summary: This paper proposes a three-step supervised reinforcement learning-based intelligent energy-efficient train trajectory optimization (SRL-IETTO) approach for AIoT-enabled iATO. It integrates deep reinforcement learning and supervised learning to address real-time responsiveness and dynamic online challenges in train operation. The approach formulates multiple objectives and systematically integrates them into the RL algorithm, establishing an IETTO model to handle uncertain disturbances and generate optimal energy-efficient train trajectories online.
Article
Engineering, Electrical & Electronic
Yiwei Cheng, Jun Wu, Haiping Zhu, Siu Wing Or, Xinyu Shao
Summary: In this article, a novel ensemble long short-term memory neural network (ELSTMNN) model is proposed for RUL prediction using a Bayesian inference algorithm to integrate multiple predictions of LSTMNNs. The effectiveness and competitive performance of the ELSTMNN-based RUL prognosis method are validated on two different turbofan engine data sets.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Computer Science, Information Systems
Ming Liu, Jiefeng Hu, Ka Wing Chan, Siu Wing Or, Siu Lau Ho, Wenzheng Xu, Xian Zhang
Article
Chemistry, Inorganic & Nuclear
Luojiang Zhang, K. N. Hui, K. S. Hui, Siu Wing Or
DALTON TRANSACTIONS
(2019)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
