Article
Materials Science, Multidisciplinary
Gholam Reza Gordani, Mohammad Reza Loghman Estarki, Esmail Kiani, Shahab Torkian
Summary: This study investigated an ultralight electromagnetic wave absorbent based on graphene oxide nanocomposite, utilizing strontium ferrite and nano silicon carbide. The research found that aerogel with nano-sized particles demonstrated better electromagnetic absorbing performance compared to those with micro-sized particles.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Ceramics
Zhale Gholampour Shamami, Mir Saeed Seyed Dorraji, Seyyedeh Fatemeh Hosseini, Mohammad Hossein Rasoulifard, Ismael Hajimiri, Alireza Amani-Ghadim
Summary: This study focused on synthesizing a high-efficiency microwave absorber by incorporating graphene oxide-polyaniline, barium-strontium titanate, and soft-hard ferrite within the polyester matrix. Characterization of the nanocomposites was carried out using XRD, FT-IR, SEM, and VNA techniques, showing promising absorption properties in the X-band region.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Nguyen Van Hoa, Pham Anh Dat, Nguyen Van Chi, Le Hong Quan
Summary: A three-dimensional reduced graphene oxide/nickel-cobalt sulfide aerogel with high porosity and conductivity was successfully fabricated using a one-step hydrothermal method. This aerogel demonstrated excellent performance as an active electrode material for supercapacitors, showing great potential for energy storage applications.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2021)
Article
Materials Science, Ceramics
Ravindra N. Kambale, Sunil M. Patange, R. A. Pawar, Sagar E. Shirsath, K. G. Suresh, Vaishali A. Bambole
Summary: Gadolinium substituted cobalt ferrite nanoparticles and ferrite/PANI microwave absorber were successfully synthesized using sol-gel auto combustion technique and in-situ polymerization method, showing excellent absorption performance in a broad band range in the radar band.
CERAMICS INTERNATIONAL
(2021)
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
Chemistry, Physical
Ningning Li, Ruiwen Shu, Jiabin Zhang, Yue Wu
Summary: The study synthesized a nitrogen-doped reduced graphene oxide/multi-walled carbon nanotubes/zinc ferrite (NRGO/MWCNTs/ZnFe2O4) composite aerogel with a unique three-dimensional porous netlike structure, exhibiting strong electromagnetic wave absorption performance. The composite aerogel showed significantly enhanced EMW absorption capacity at ultra-thin matching thickness and proposed possible absorption mechanisms.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Ali B. Abou Hammad, A. M. Mansour, Feng Cao, Amany M. El Nahrawy
Summary: In this study, NiFe2O4-KFeO2 nanocomposite thin films were synthesized without surfactant and water (WOSW) sol-gel route and characterized for their structural, optical, and magnetic properties. It was found that with the increase in calcination temperature, the size and surface area of the particles increased, and the saturation magnetization also increased.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
S. E. Mousavi Ghahfarokhi, M. Ahmadi, I. Kazeminezhad
Summary: The nanocomposites of SrFe11MnO19/CoFe1.9Bi0.1O4/PANI were prepared using auto-combustion sol-gel and in-situ polymerization methods with different mass ratios, and analyzed with various techniques. Results showed that the magnetic properties and reflection loss of the nanocomposites were affected by the mass ratio of the components.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Ceramics
Sarwar Hasan, Bruska Azhdar
Summary: Nickel and zinc spinel ferrites were prepared using the sol-gel auto-combustion approach. XRD studies confirmed their spinel structure and determined their crystallite sizes. Morphological analysis revealed the size and shape of the nanoparticles. Energy dispersive spectroscopy verified the composition. Optical and magnetic studies were conducted, and the dielectric properties and AC conductivity were analyzed, showing significant differences between NFO and ZFO.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Qana A. Alsulami, Laila M. Alharbi, Sherif M. A. S. Keshk
Summary: This study successfully synthesized a ternary composite electrode material consisting of graphene oxide, spinel zinc ferrite, and polyaniline, which exhibited significantly enhanced capacitance. The intercalation of polyaniline through in situ polymerization played a crucial role in improving the electrochemical properties of the material.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Environmental Sciences
Umesh Chejara, Anamika Prajapati, Arvind Kumar
Summary: This study synthesized and characterized nano-particles of polycrystalline magnesium and iron ferrite doped with rare earth materials. The electrical properties of these materials were measured, and it was found that they exhibit variation behavior with respect to frequency. The study suggests that these materials may have potential applications in the fabrication of microwave antennas to reduce energy losses.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Ali Nawaz, Minki Kang, Hyung Wook Choi, Rana Tariq Mehmood Ahmad, Sang -Woo Kim, Dae Ho Yoon
Summary: This study presents a hybrid multimodal nanogenerator (HNG) that combines a triboelectric nanogenerator (TENG), a piezoelectric nano-generator (PENG), and an electromagnetic nanogenerator (EMG) using versatile nanocomposite films. With high output power and low internal electrical impedance, the HNG provides efficient energy harvesting in response to external mechanical forces. The findings hold potential for the commercial application of flexible hybrid nanogenerators.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Charanjeet Singh, Maria Vesna Nikolic, Sukhleen Bindra Narang, Antonio Sergio Bezerra Sombra, Di Zhou, Sergei Trukhanov, Larrisa Panina, Jasbir Singh, Alex Trukhanov
Summary: This study focuses on the preparation and microwave characterization of composites of M-type hexagonal ferrite with paraffin wax. The influence of Sr2+ ion content on material parameters, including grain morphology, dielectric, magnetic, conductivity, and reflection loss properties, was analyzed. The results indicate that higher Sr2+ ion content leads to lower dielectric and magnetic loss tangent, as well as increased AC conductivity with frequency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Harshavardhan Mohan, Natesan Karthi, Pavithra Muthukumar Sathya, Vaikundamoorthy Ramalingam, Srivalli Thimmarayan, Mohammad Amjad Hossain, Adithan Aravinthan, Taeho Shin
Summary: This study synthesized (Zn, Ni)-ferrite nanoparticles using a chemical co-precipitation method and evaluated their cytotoxicity and osteogenic properties. The results showed that these nanoparticles had low toxicity and could potentially be used as biomaterials in regenerative medicine.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Gaoyuan Yu, Gaofeng Shao, Yu Chen, Xiaogu Huang
Summary: This study constructs a unique three-dimensional silicon carbonitride (SiCN) nanoceramic-coated graphene aerogel structure to optimize microwave absorption performance at low frequencies by improving the interface and impedance matching. The aerogel achieves a minimum reflection loss of -57.9 dB at an ultralow frequency of 4.92 GHz (C-band) and a broad bandwidth of 5.0 GHz at an ultralow thickness of 1.7 mm. This research provides a method for enhancing dielectric polarization loss in graphene aerogels by optimizing interfacial polarization and impedance matching, inspiring the design of high-performance graphene-based materials for low-frequency microwave absorption.
ACS APPLIED MATERIALS & INTERFACES
(2023)
