Article
Chemistry, Physical
K. S. Ashraff Ali, M. M. Ravikumar, J. Mohammed, Naeim Farouk, V. Mohanavel, M. Ravichandran
Summary: This study reported the microwave absorption properties of BaFe12O19, carbon fiber@Fe3O4 composite, and graphene@BaFe12O19@Fe3O4 composite, and their effects on the microwave absorption performance. Increasing filler loading in different combinations can enhance microwave absorption capabilities within a certain range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
M. R. Hassan, Md. Sarowar Hossain, M. A. Hakim, M. A. Matin, M. N. I. Khan, S. S. Sikder
Summary: The study explored the enhancement of magnetic and electric properties in BiFe0.9La0.1O3 with the addition of Ni-Zn ferrite. The addition of Ni-Zn ferrite led to an increase in saturation magnetization, decrease in permittivity and dielectric loss. The composites with Ni-Zn ferrite addition may have potential applications in devices like microwave antennas.
RESULTS IN PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Kashif Younas Butt, Salma Aman, Abeer A. AlObaid, Tahani Al-Muhimeed, Adeela Rehman, H. H. Hegazy, Naseeb Ahmad, Abdul Rauf Khan, Syeda Rabia Ejaz, Hafiz Muhammad Tahir Farid
Summary: The research involved the preparation of spinel ferrites via the sol-gel route and their characterization under various techniques, revealing their cubic structures and different properties in terms of microwave, magnetic, structural, and electrical behavior. The impedance increased with the augmentation of rare earth ions, while magnetic properties decreased with the substitution of rare earth contents. Microwave properties exhibited a gradual decrease in permittivity and permeability values with increasing frequency, suggesting potential applications in microwave absorption.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Ceramics
Somnath Sahu, Ravi Chandra Gurrala, Pamu Dobbidi
Summary: This research demonstrates the enhancement of microwave absorption capability in Gd-doped Ni0.5Co0.5Fe2O4 nanoceramics through oxygen vacancy engineering. The study reveals that a small amount of Gd promotes high oxygen vacancy concentration, appropriate lattice defects, and high magnetic and dielectric losses. The results also provide insights into the connection between oxygen vacancy defects and electromagnetic wave dissipation capability.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Chemical
Kiran, Nagesh Thakur
Summary: The study investigated the structural and microwave absorption properties of MFO@GO and MFO@rGO composites, with MFO@rGO showing the best absorption performance across the entire frequency range with excellent absorption efficiency and bandwidth.
Article
Chemistry, Physical
Tao Wang, Geng Chen, Jiahao Zhu, Hang Gong, Limin Zhang, Hongjing Wu
Summary: This paper explores the importance of impedance matching and its calculation methods for absorber designers, pointing out existing issues in literature and explaining the factors influencing impedance matching effect. By simplifying the EMW absorption process to a transmission line model, the limitations of the RL calculation formula are revealed, and doubts about the validity of the quarter wavelength theory are scientifically explained.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Priyanka Sharma, Sandeep Kumar, Ratnamala Chatterjee
Summary: This study investigates the microwave absorbing properties of ferrite based core-shell nanocomposites. The 50LFO/50NiO sample exhibits strong microwave absorption at 13.4 GHz frequency, making it a promising material for future microwave absorbing devices.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
Xingtian Chen, Di Zhang, Huaiyin Chen, Ruoyu Hong
Summary: A new ternary core-shell composite, CIP@Fe3O4@PANI, has been successfully prepared with superior magnetic properties, oxidation resistance, high saturation magnetization, making it a promising candidate for rapid development of broadband shielding and anticorrosive materials.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Multidisciplinary
A. Kaiyum, M. A. Hossain, Md. Sarowar Hossain, R. Rashid, A. Kumar, M. A. Hakim, M. N. I. Khan
Summary: This study improved the magnetic and dielectric properties of BiFeO3 by substituting Eu3+ for Fe3+ and La3+ for Bi3+, resulting in higher magnetic saturation and better relative magnetic permeability of the samples.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Mingrui Han, Yunfei Yang, Wei Liu, Zhihui Zeng, Jiurong Liu
Summary: This article discusses the application of carbon-based electromagnetic wave absorbing materials in solving electromagnetic wave pollution. By designing a three-dimensional porous structure, the absorption effect of the material is improved. The researchers summarize the latest research progress and propose future challenges and prospects.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Lokesh Saini, Vatsana Gupta, Manoj Kumar Patra, Raj Kumar Jani, Anuj Shukla, Narendra Kumar, Ambesh Dixit
Summary: A series of Fe-Ni nanocomposites were successfully synthesized using a wet-chemical method, and graphite wrapped Fe-Ni alloy nanoparticles in core-shell geometries were prepared. XRD studies revealed body-centered and face-centered cubic Fe-Ni alloy core particles, as well as hexagonal graphitic shell formation. Furthermore, a structural transition from bcc to fcc phase was observed with varying Ni concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Anupam Gorai, Dipika Mandal, Kalyan Mandal
Summary: The deposition of dielectric SiO2 and ferrimagnetic CoFe2O4 (CFO) layers on MnFe2O4 (MnFO) nano-hollow spheres (NHS) enhances electromagnetic wave absorption, with MnFO@CFO bi-layered NHSs exhibiting excellent reflection loss performance. The study demonstrates the optimized MnFO@CFO NHS as a highly promising low-cost and lightweight EM wave absorber suitable for practical high-frequency applications.
Article
Materials Science, Multidisciplinary
Aliaksandr Ph Ilyushchanka, Sergey G. Baray, Andrey Letsko, Tatyana L. Talako, Yauheni D. Manoila, Yojana Janu, Virendra S. Chauhan, Manoj K. Patra, Lokesh Saini
Summary: This study successfully developed FeCrNiAl/Al2O3 thick ceramic composite coatings with excellent radar/microwave absorbing capability and good mechanical strength for aircraft surfaces, without any cracks or deformations. The coatings exhibit excellent reflection loss in the X-band frequency range and can tune absorption frequency at different thicknesses.
ADVANCED ENGINEERING MATERIALS
(2022)
Review
Chemistry, Physical
Dheeraj Gunwant, Ajitanshu Vedrtnam
Summary: This article discusses the development of carbon fiber-based microwave absorbing materials, including four different types of carbon fiber-based materials and the parameters affecting their microwave absorption properties. The research points out that optimal material performance can be achieved by manipulating factors such as geometry, concentration, etc.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
S. K. Ahmed, M. Faishal Mahmood, M. Arifuzzaman, M. Belal Hossen
Summary: Nanoparticles of Cu-Zn-Al-Fe oxides were synthesized using the auto-combusted sol-gel process and the effect of Al3+ substitution on structural, magnetic, and dielectric properties was studied. The addition of Al3+ resulted in increased grain and grain boundary resistance, reducing space charge polarization. Electrical conductivity increased with frequency and saturation magnetization showed an increment with nonmagnetic Al3+ substitution.
RESULTS IN PHYSICS
(2021)
Article
Biology
Sachin Tyagi, Rahul Kunwar Singh, Shree Prakash Tiwari
Summary: Enterococci are opportunistic pathogens causing serious infections, with drug resistance worsening the situation. Antienterococcal compounds with antioxidant activity in food may help prevent foodborne infections. The study tested thermophilic cyanobacteria extracts against drug-resistant Enterococcus faecium, showing promising results.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Materials Science, Ceramics
Krishan Kumar, Anuj Kumar, Sarita Devi, Sachin Tyagi, Davinder Kaur
Summary: A novel solar cell based on the N-CQDs/MoS2 quantum dimensional heterostructure has been successfully fabricated, demonstrating good optical and electrical characteristics. Significant current rectification ratio and current shift under solar radiation have been observed. The heterostructure exhibits a high power conversion efficiency and open-circuit voltage, supported by the external quantum efficiency spectrum. N-CQDs/MoS2 heterostructure shows great potential in future energy harvesting applications.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Pallavi Sharma, Ritu Daipuriya, Alpana Bhagatji, Sachin Tyagi, Sudipta Sarkar Pal
Summary: The study measured the Mechano-luminescence (ML) response of ZnS microcrystals doped with different concentrations of manganese (Mn), and found that ZnS:Mn with 1 M% doping concentration showed the highest ML emission intensity. The ML intensity was observed to increase linearly with applied pressure for all three doping concentrations.
Article
Engineering, Electrical & Electronic
Mahak Gupta, Sachin Tyagi, Neelam Kumari
Summary: A ternary nanocomposite of manganese ferrite/poly(3,4-ethylenedioxythiophene)/reduced graphene oxide has been synthesized by hydrothermal method. The nanocomposite exhibits enhanced ion transportation and energy storage capabilities, making it a potential electrode material for supercapacitors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Manju Bala, V. D. Shivling, Shivanshu Goel, Sachin Tyagi
Summary: Microwave absorbing composites consisting of zinc ferrite and activated charcoal were synthesized using mechanical alloying method. The low-density zinc spinel ferrite was synthesized by auto combustion method, and activated charcoal was produced using a high energy planetary ball mill. The addition of activated charcoal resulted in a decrease in the saturation magnetization of the zinc ferrite. The composite medium with 25% zinc ferrite and 75% activated charcoal exhibited excellent microwave absorbing behavior in the X-band.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Sarita Devi, Vaishali Garg, Sachin Tyagi
Summary: In this study, nitrogen-doped carbon quantum dots (NCQDs) conjugated with anti-TNT antibodies were successfully synthesized for the detection of TNT, showing high selectivity and sensitivity. The biosensor exhibited low detection limits, high stability, and was suitable for the detection of TNT in real water samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Manju Bala, V. D. Shivling, Sachin Tyagi
Summary: Neodymium-doped nickel spinel ferrite nanoparticles were synthesized using the sol gel method, and it was found that neodymium doping can tune the structural, magnetic, and morphological properties of the nanoparticles. The best impedance matching and maximum attenuation constant were observed in the nickel spinel ferrite with a doping concentration of x = 0.06. These findings suggest that neodymium-doped nickel spinel ferrite has potential applications in microwave absorption in the X-band.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Biotechnology & Applied Microbiology
N. Junath, Alok Bharadwaj, Sachin Tyagi, Kalpana Sengar, Mohammad Najmus Saquib Hasan, M. Jayasudha
Summary: Data analytics greatly assist in diagnosing and treating patients in the healthcare industry. Machine learning approaches are used to handle massive amounts of data and provide tools for prediction and categorization to support decision-making. In this study, the influence of clinic pathological indicators on breast cancer patient prognosis and survival rate was analyzed using the Bayesian method. A dynamic regression model based on a probabilistic Bayesian classifier was built for prognosis analysis. The model showed the best fitting impact on the data and achieved the highest overall survival forecast accuracy.
BIOMED RESEARCH INTERNATIONAL
(2022)
Correction
Materials Science, Multidisciplinary
Pallavi Sharma, Ritu Daipuriya, Alpana Bhagatji, Sachin Tyagi, Sudipta Sarkar Pal
Correction
Materials Science, Multidisciplinary
Manju Bala, V. D. Shivling, Sachin Tyagi
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Review
Pharmacology & Pharmacy
Revendra Parganiha, Arpan K. Tripathi, Segu Prathyusha, Pragati Baghel, Sanjay Lanjhiyana, Sweety Lanjhiyana, Deepti Katiyar, Sachin Tyagi, Prince P. Sharma, Dhrubajyoti Sarkar
Summary: The liver plays a crucial role in eliminating toxins, and liver malfunction is a significant public health concern. Herbal drugs have gained popularity as an alternative treatment for liver problems.
JOURNAL OF COMPLEMENTARY MEDICINE RESEARCH
(2022)
Article
Pharmacology & Pharmacy
Ankita Wal, Himangi Vig, Mudita Mishra, Riya Singh, Shruti Rathore, Sachin Tyagi, Jyotibikash Kalita, Pranay Wal
Summary: Niosomes are a drug delivery method that improves drug bioavailability and addresses issues such as drug insolubility and instability. By incorporating herbal medications into niosomes, their toxicity protection and sustained delivery can be enhanced. This study aims to draw attention to the use of phytoniosomes and their potential in herbal formulations.
Article
Chemistry, Multidisciplinary
Sarita Devi, Aarushi, Sachin Tyagi
Summary: This paper presents a zinc derived porous nanosystem that can be used for selective sensing, adsorption, and photocatalytic degradation of Methylene blue dye. The results show that the ZD nanoparticles exhibit good adsorption and photocatalytic degradation properties for Methylene blue, making them suitable for environmental remediation applications.
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)