Article
Materials Science, Composites
Jian Zheng, Ming Gong, Wenying Zhou, Weiwei Peng, Fanrong Kong, Hongju Wu, Guangheng Wang, Huiwu Cai, Mengxue Yuan
Summary: In this study, SiO2 shells with different morphologies were constructed on the superficies of ss-SiCw to enhance the TC and dielectric performances of ss-SiCw@SiO2/PVDF. The composites showed significantly restricted loss and improved TC due to the suppression of direct contact between ss-SiCw and the hindered long-distance charges migration by the SiO2 shell. The crystalline SiO2 interlayer with a high TC achieved a more evident enhancement effect in the epsilon and TC but low loss of the composites.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
S. Divya, S. Cathrin Lims, M. Manivannan, R. Robert, S. Jerome Das, M. Jose
Summary: This study reports the synthesis of Fe3O4 nanoparticles and Fe3O4@SiO2 nanocomposites coated with amorphous silica using solvothermal and modified Stober methods. Various analysis techniques were employed to confirm their structure and formation, and their magnetic and electrical properties were investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(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
Polymer Science
Jiale Wu, Yiran Zhang, Yangzhi Gong, Kun Wang, Yun Chen, Xupeng Song, Jun Lin, Boyang Shen, Shaojian He, Xingming Bian
Summary: Orderly arranged SiC/EP composites were fabricated in this study, with magnetic SiC showing enhanced breakdown strength and thermal conductivity. The potential application of these composites lies in the field of insulation materials for power electronic device packaging.
Article
Polymer Science
Qinlong Wang, Hao Wang, Caixia Zhang, Qilong Zhang, Hui Yang
Summary: By preparing the core-shell structure of Sr2CeO4@SiO2 using the sol-gel method and introducing modified powders into a COC matrix, the stability and moisture resistance of the materials are significantly improved, showing potential application prospects in high-frequency communication equipment.
Article
Materials Science, Multidisciplinary
Samin Habibi, Steven Bryant, Roman Shor, Giovanniantonio Natale
Summary: The study focuses on creating monodisperse magnetic particles by depositing a magnetite layer on the surface of silica particles using a low-temperature electroless deposition technique. This technique, scalable and suitable for mass production, can be applied to a wide range of inorganic materials or polymer particles. The resulting SiO2@Fe3O4 core/shell particle is responsive to magnetic fields and shows promise for applications in magnetorheological fluids.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
A. Hajalilou, L. P. Ferreira, M. E. Melo Jorge, C. P. Reis, M. M. Cruz
Summary: The study explored the potential of Ag-Fe3O4 composite nanoparticles and their ferrofluids for hyperthermia applications, revealing their high potential for destroying malignant tumor cells through synthesis, characterization, and evaluation of heating performance.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Sajid, Sidra Shuja, Hongpan Rong, Jiatao Zhang
Summary: Different-sized colloidal Fe3O4 nanoparticles (NPs) ranging from 8 to 20 nm were prepared by controlling the heating rates, and their hydrophilicity was improved by coating with a SiO2 shell to form Fe3O4@SiO2 core-shell structures. The morphology, crystallinity, and magnetic properties of the prepared Fe3O4 and Fe3O4@SiO2 core-shell NPs were characterized using TEM, XRD, and VSM, respectively. HRTEM results revealed the well crystallization of Fe3O4 NPs, enabling fine-tuning of their superparamagnetic properties for potential applications.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Jafar Molaei, Esmaeil Salimi
Summary: In this research, magneto-fluorescent nanohybrids were synthesized using Fe3O4@SiO2 superparamagnetic nanoparticles as a platform for drug delivery systems. The nanohybrids were coated with alginate and combined with N-doped carbon quantum dots (CQDs). The synthesized nanohybrids exhibited high drug loading and release efficiency, making them a promising candidate for simultaneous drug delivery and bioimaging, especially in tumor environments.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Environmental
Chen Chen, Haoyu Yuan, Xiaoming Wang, Yan Lin, Yan He, Fei Wang
Summary: A recyclable magnetic Fe3O4 nanoparticle coated with SDS (SDS-coated Fe3O4) was synthesized and successfully used for hydrate formation promotion as well as cycle experiments. The results showed that SDS-coated Fe3O4 exhibited more efficient promotion for hydrate formation than bare Fe3O4. Further comparison of bare Fe3O4 and SDS-coated Fe3O4 during cycle experiments showed that after 5 cycles, the methane storage capacity and reaction time in presence of SDS-coated Fe3O4 can still be maintained, indicating its potential to increase the recyclability and economy for promoters in the hydrate-based technology.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Jiawei Lu, Youran Li, Huilin Zhu, Guiyang Shi
Summary: The study successfully synthesized magnetic hollow composite beads with nanoscale porous structures for enzyme immobilization, demonstrating improved stability and functionality compared to traditional methods. The immobilized lipase in the composite beads showed higher thermal stability, resistance to alkali, and reusability in ester hydrolysis cycles, making it a promising candidate for industrial applications.
ACS APPLIED NANO MATERIALS
(2021)
Review
Green & Sustainable Science & Technology
Hari Prashanth Palani Velayuda Shanmugasundram, Elammaran Jayamani, Kok Heng Soon
Summary: This review paper summarizes the complete discoveries of dielectric materials from ceramics to polymer composites and explores their applications. It discusses the basic principles of dielectric behavior in composites systems and how polarization models are intertwined with composite fabrication. The study thoroughly investigates the combinations of different components in composites for engineering solutions. It also classifies and reviews recent discoveries of dielectric composite materials, focusing on ceramic-based composites, polymer-ceramic composites, natural fiber reinforced polymer composites, and bio-based polymer composites. Additionally, the processing techniques of these dielectric materials are comprehensively reviewed, along with their prominent applications.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Engineering, Environmental
Chuang Liu, Xiaoyu Wang, Linlin Qin, Hongjun Li, Wenyan Liang
Summary: In this study, Fe3O4 was functionalized through SiO2 coating to enhance dispersibility, chemical stability, and magnetic flocculation performance. Fe3O4/SiO2 demonstrated effective flocculation of kaolin particles, achieving high removal efficiency in turbid water. The interaction between Fe3O4/SiO2 and Ca2+ was found to play a crucial role in the flocculation process, with the energy barrier significantly reduced due to electrostatic interactions. The study also highlighted the importance of floc structures formed during magnetophoresis in influencing the flocculation of kaolin particles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Jun Liao, Junfeng Qiu, Guohui Wang, Rongxiao Du, Natalia Tsidaeva, Wei Wang
Summary: In this study, a 3D ternary core-shell Fe3O4@SiO2@MoS2 composite was synthesized, showing remarkable enhancement in microwave absorption due to the synergistic effect of magnetic Fe3O4, dielectric SiO2, and MoS2. The specific structural design and interfacial construction play a key role in improving the performance of the composites in absorbing microwaves.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Thermodynamics
Yunmin Liang, Biwei Liu, Bo Zhang, Zhichun Liu, Wei Liu
Summary: This study investigates the effects and mechanism of the filler surface coating strategy on the thermal conductivity of composites via synthesizing silica coated BN and incorporating it into epoxy. It was found that increasing the coating thickness or filler content would decrease the enhanced effect of the strategy on thermal conduction. Experimental results suggest that the increase of filler content leads to an increase in interfacial thermal resistance, which deteriorates the thermal conduction enhancement factor.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Multidisciplinary
Xinchun Tian, Geoff Lee Brennecka, Xiaoli Tan
Article
Chemistry, Multidisciplinary
Xinchun Tian, Geoff L. Brennecka, Xiaoli Tan
ADVANCED FUNCTIONAL MATERIALS
(2020)
Review
Polymer Science
Rafael L. Quirino, Khristal Monroe, Carl H. Fleischer, Eletria Biswas, Michael R. Kessler
Summary: This review discusses recent advancements in bio-based thermosets with a focus on resins prepared from vegetable oils, natural phenolic compounds, and other recently developed thermosetting systems. The article concludes with a critical perspective on the environmental implications of bio-based thermosets.
POLYMER INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Binzhi Liu, Xiaoli Tan
Summary: Research on using Ca2+ to substitute Na+ in NaNbO3 ceramics has successfully suppressed remanent polarization and improved energy storage properties. The introduction of a smaller donor dopant and charge-compensating vacancies on the A-site in NaNbO3 has been shown to effectively disrupt the long-range dipole order.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Jyani S. Vaddi, Stephen D. Holland, Michael R. Kessler
Summary: This paper describes a method to calculate the loss modulus of a viscoelastic polymer material at high frequencies based on vibrothermography. By measuring the surface temperature of the polymer coating and by solving the heat transfer equation, the heat intensity dissipated at the polymer is estimated. The measurement method is demonstrated with two different polymer materials at several frequencies and compared with results from dynamic mechanical analysis experiments.
Article
Physics, Applied
Xinchun Tian, Gabriel Caruntu, Benard Kavey, Xiaoli Tan
Summary: The electrical properties of individual pristine and doped BaTiO3 nanocubes were measured using in situ transmission electron microscopy. The doped nanocubes showed reduced variation rates in resistance with respect to the electric field, with 5%La doping demonstrating the best effect.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Changhao Zhao, Shuang Gao, Tiannan Yang, Michael Scherer, Jan Schultheiss, Dennis Meier, Xiaoli Tan, Hans-Joachim Kleebe, Long-Qing Chen, Jurij Koruza, Juergen Roedel
Summary: The study presents a novel approach for electroceramics by utilizing precipitates to pin domain walls, improving piezoelectric properties and enhancing mechanical quality factor. This new method reduces hysteresis in electrostrain while slightly increasing the piezoelectric coefficient and electromechanical coupling factor. The process can be smoothly implemented in industrial production and easily optimized in laboratory settings for various ferroelectric systems.
ADVANCED MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Yuzhan Li, Veronica Ambrogi, Pierfrancesco Cerruti, Monojoy Goswami, Zhou Yang, Michael R. Kessler, Orlando Rios
Summary: Liquid crystalline epoxy networks (LCENs) are a type of functional materials that combine the properties of liquid crystals and epoxy networks, showing unique thermal, mechanical, and stimuli-responsive characteristics. They are widely used in various applications such as sensors, coatings, and soft robotics. By understanding the structure-processing-property relationships, materials engineers can develop LCENs with desired functionalities. Research on LCENs continues to advance, with focus on advanced manufacturing and multi-functional design, providing novel materials for future technologies.
INTERNATIONAL MATERIALS REVIEWS
(2022)
Article
Multidisciplinary Sciences
Marion Hoefling, Xiandong Zhou, Lukas M. Riemer, Enrico Bruder, Binzhi Liu, Lin Zhou, Pedro B. Groszewicz, Fangping Zhuo, Bai-Xiang Xu, Karsten Durst, Xiaoli Tan, Dragan Damjanovic, Jurij Koruza, Juergen Roedel
Summary: The study presents a novel method to manipulate the domain structure of ferroelectric materials by mechanically imprinting dislocation networks, leading to significant improvements in electrical properties such as dielectric and electromechanical response. This innovative microstructural approach offers new opportunities for tailoring functional materials.
Article
Materials Science, Ceramics
Binzhi Liu, Ling Li, Shan-Tao Zhang, Lin Zhou, Xiaoli Tan
Summary: A comparative study was conducted on PNZST/ZnO ceramic composites with different ratios, revealing that the lower ratio (x=0.1) composite exhibited a stable ferroelectric phase at room temperature, transitioning to an antiferroelectric phase upon heating, contributing to the pyroelectric effect. In contrast, the higher ratio (x=0.4) composite showed the presence of Zn2SnO4, leading to the decomposition of the ferroelectric matrix phase and consequently lower pyroelectric coefficient.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Yuehong Zhang, Mengjiao Zhai, Fei Ma, Yuzhan Li, Bin Lyu, Tuan Liu, Zhenhua Gao, Liwei Wang, Dan Vincent, Michael R. Kessler
Summary: Eugenol-based epoxy resins were synthesized and cured with a eugenol-derived diamine, showing comparable properties to petroleum-based counterparts. The study demonstrates the potential of eugenol as a renewable resource for developing sustainable polymers with high value-added chemicals.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Correction
Polymer Science
Yuzhan Li, Jong K. Keum, Jun Wang, Naisheng Jiang, Wim Bras, Michael R. Kessler, Orlando Rios
Article
Polymer Science
Yuzhan Li, Jong K. Keum, Jun Wang, Naisheng Jiang, Wim Bras, Michael R. Kessler, Orlando Rios
Summary: Liquid crystalline elastomers exhibit unique shape memory behavior due to the combination of liquid crystalline orientation and rubber elasticity. Multiscale structural characterization upon deformation is crucial to understanding the structure-property relationships of these materials. Selective deuteration enables an improved neutron scattering contrast between different domains in the LCE, revealing the presence of highly aligned amorphous domains and the formation of structures in the micrometer scale.
Article
Nanoscience & Nanotechnology
Mahjabeen Javed, Tyler Corazao, Mohand O. Saed, Cedric P. Ambulo, Yuzhan Li, Michael R. Kessler, Taylor H. Ware
Summary: The inclusion of semicrystallinity in liquid crystal elastomers enhances mechanical properties and allows for programmable director profiles through directed self-assembly.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Pratyasha Mohapatra, Duane D. Johnson, Jun Cui, Xiaoli Tan
Summary: In two antiferroelectric ceramic compositions with comparable recoverable energy densities, the ceramic with a large hysteresis demonstrated a significant decrease in recoverable energy density and energy efficiency during test cycles, while the ceramic with a small hysteresis only showed minor degradation in energy density. These results indicate that reducing electric hysteresis in antiferroelectric capacitors is crucial for improving energy efficiency and extending service lifetime.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)