Article
Materials Science, Ceramics
Yutao Luo, Guoxiu Qiu, Jun Wang, Yunfei Liu, Jin Luo, Yinong Lyu
Summary: In this study, lead-free ferroelectric thin films BZT-0.02 Mn were prepared by a sol-gel method. The films exhibited high energy storage density and efficiency, as well as frequency insensitive stability, long-term fatigue resistance, and high temperature stability. The results suggest that BZT-0.02 Mn thin films are promising for energy storage applications.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Boying Wang, Hao Wang, Jiantao Wang, Chaolong Li, Feng Wang, Chunli Diao, Haiwu Zheng
Summary: In this study, lead-free 0.8STO-0.2BFO thin films with coexisting amorphous and nanocrystalline structure were prepared by a sol-gel method. By adjusting the heat-treatment temperature to form polar-nano regions, the energy storage density of the films was increased. The optimized 0.8STO-0.2BFO film exhibited excellent energy storage properties with high discharge energy storage density, temperature and frequency stability, as well as fatigue endurance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Renzhong Xue, Liuyang Zhao, Siyuan Chen, Hongxuan Chen, Mengru Cui, Xintao Bai, Tao Li, Dewei Liu, Haiyang Dai
Summary: The effects of A-site transition from Ca2+ to Cd2+ on the microstructure, morphology, and electrical properties of Ca(1-x)CdxCu(3)Ti(4)O(12) thin films were investigated. The films exhibited smooth and compact surfaces without cracks. The transition from Ca2+ to Cd2+ resulted in changes in grain size and electrical properties. In particular, the simultaneous occupancy of A sites by Ca2+ and Cd2+ improved the dielectric and nonlinear properties of Ca1-xCdxCu3Ti4O12 films.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Ahmed Ali, Mansour M. Hassan, G. Goda Mohammed, Hossam Youssef Abdel El-Hamid, Hilmy Awad
Summary: Nano-composites ceramic of (Al2O3/BaTiO3) were successfully fabricated by Sol. Gel. technique. The addition of Al2O3 changed the structure and particle size of BaTiO3, resulting in uniform distribution of nano-sized particles. The infrared, Raman, and UV/Vis spectroscopy revealed distinct peaks and splits for Al2O3/BaTiO3. Moreover, Al2O3 exhibited a significant effect on the dielectric properties of the composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Jingwei Zhao, Zhonghua Yao, Zhijian Wang, Ning Zhang, Hua Hao, Minghe Cao, Hanxing Liu
Summary: By employing microstructural engineering, an optimized lead-free Zr-modified BiMg0.5Zr0.04Tix-0.04O3 composition was developed to enhance energy storage behavior, achieving superior energy properties and high efficiency. Rapid annealing and excess Ti source doping effectively increased polarization and dielectric breakdown levels.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Debasrita Bharatiya, Biswajit Parhi, Sarat K. Swain
Summary: In this study, a GO-based ZnO, CuO, and Ag2O mixed ternary nanostructured composite was developed using a simple sol-gel synthesis approach, showing enhanced dielectric properties and potential charge storage applications. Physio-chemical characterization techniques were used to study the properties of the composite, highlighting its remarkable dielectric and charge storage capabilities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yanjiang Xie, Hua Hao, Juan Xie, Zichen He, Shuo Zhang, Zongxin Li, Minghe Cao, Zhonghua Yao, Hanxing Liu
Summary: By controlling the amount of SrTiO3 introduced into the BNT-BT thin films, the maximum polarization and dielectric properties of the films can be enhanced, leading to high energy-storage density and low dielectric loss under certain conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Helei Dong, Hao Zhang, Feng He, Zhen Jia, Kailong Wei, Qiulin Tan
Summary: In order to gain an economic advantage, nanocrystalline Ba0.5Sr0.5TiO3 (BST) thin films were prepared using an aqueous sol-gel process. Characterization through X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) confirmed the perovskite structure of the films and the oxidation state of the Ba element. The BST thin film prepared at a lower annealing temperature of 600 degrees C showed optimal crystallinity, superior dielectric properties, and excellent optical transparency.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zohra Nazir Kayani, Ifra Sheri, Salma Waseem, Saira Riaz, Shahzad Naseem
Summary: Ba-doped TiO2 thin films were fabricated using the sol-gel dip-coated method. X-ray diffraction confirmed the formation of the anatase phase. With the increase of Ba doping, the size of the crystallite decreased. The bandgap of pure TiO2 and Ba-doped TiO2 thin films was in the range of 3.15-2.94 eV, which is beneficial for enhancing solar cell efficiency and water treatment. Ba-doped TiO2 thin films exhibited low dielectric constant suitable for high-frequency devices and showed ferromagnetism. The antibacterial activity of Ba-doped TiO2 was higher than that of pure TiO2, making it suitable for application in nanomedicine.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Ceramics
Yi-Da Ho, Jing-Ann Lai, Meng-Hung Tsai, Cheng-Liang Huang
Summary: The study investigated the effects of zinc substitution on the electrical properties of sol-gel derived MgNb2O6 thin films, revealing that optimal performance was achieved at x = 0.2 and the electrical properties were tunable based on zinc content. Zinc content also influenced the leakage conduction mechanisms and critical electric field strength of the devices.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2021)
Article
Materials Science, Multidisciplinary
Olena Okhay, Paula M. Vilarinho, Alexander Tkach
Summary: Monophasic Sr1-xZnxTiO3 thin films with higher Zn content of 0.01, 0.05, and 0.10 were prepared on Pt/TiO2/SiO2/Si substrates using the sol-gel technique at a relatively low annealing temperature. The presence of Zn on the Sr site was confirmed by a decrease in lattice parameter, and its presence in the films was proven by energy dispersive spectroscopy. The films had a thickness of approximately 330 nm and showed an average grain size of 86-145 nm and roughness of 0.88-2.58 nm as determined by scanning electron microscopy and atomic force microscopy. The dielectric permittivity epsilon' of the films decreased with increasing Zn content, contrary to weakly doped Sr1-xZnxTiO3 ceramics. Simultaneously, the dissipation factor tan delta showed a peak with increasing Zn content, with both intensity and temperature of the peak increasing.
Article
Materials Science, Ceramics
Haojie Qu, Yuxian Guo, Donghui Zhang, Bai Sun, Linli Yan
Summary: In this study, vanadium dioxide thin films were fabricated on Al2O3 substrates by sol-gel method and subsequent annealing process. The effects of annealing temperature on the structure, chemical state, surface morphology and electrical properties of the films were studied. The results showed that the films exhibited good phase transition property as the annealing temperature increased.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Jo Sing Julia Tang, Aline Debrassi Smaczniak, Lucas Tepper, Sophia Rosencrantz, Mina Aleksanyan, Lars Daehne, Ruben R. Rosencrantz
Summary: This study describes the synthesis of bioinspired glycopolymer electrolytes using protecting group free and aqueous-based methods, fabricated as thin films by Layer-by-Layer self-assembly to serve as scaffolds for liposomes. The results demonstrate the stability and integrity of glycopolymer coatings and embedded liposomes within the physiological pH range.
MACROMOLECULAR BIOSCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Jiangang Wang, Wenjing Shen, Xin Zhang, Jianhui Li, Jing Ma
Summary: In this study, Al-doped and (Al, Fe) codoped ZnO films were prepared using the sol-gel method on glass substrates. Characterization of surface morphology, structure, and optical properties showed that codoped films had smaller grain size and were smoother, with reduced crystalline degree. XPS analysis revealed Al and Fe ions existing in trivalent forms in the films, while the doped films exhibited higher transmission and shifted absorption edge towards short-wavelength direction.
Article
Chemistry, Multidisciplinary
Narges Kiomarsipour, Akbar Eshaghi, Mazaher Ramazani, Hossein Zabolian, Marzieh Abbasi-Firouzjah
Summary: A simple aqueous sol-gel procedure was used to produce hard transparent organic-inorganic coatings on polycarbonate (PC). The coatings were prepared by mixing Si and Al aqueous alkoxides and applied on plasma-treated PC. The coatings showed higher transmittance and good adhesion onto the substrates. The pencil hardness of the PC substrate improved significantly with just a single layer coating.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
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.