Article
Chemistry, Inorganic & Nuclear
Hui Dan, Li Chen, Zhen Li, Xinmiao He, Yi Ding
Summary: Amorphous ZrO2 powders were successfully prepared using a novel hydrothermal-assisted sol-gel method. The obtained powders exhibited features of small and uniform particle size, as well as high purity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Physics, Condensed Matter
Thanit Tangcharoen
Summary: In this study, nanocrystalline non-magnetic ion-doped zinc oxide powders were synthesized and investigated using various techniques. The introduction of magnesium and calcium ions resulted in the formation of hexagonal solid MgZnO and CaZnO, as well as composites of Mg/ZnO, CaO/ZnO, and Al2O3/ZnO without impurity phases. The modified samples showed improved textural properties and higher bandgap energy compared to the pure sample. Furthermore, the emission bands in the photoluminescence spectra showed significant changes in intensity as the concentration of non-magnetic ions increased. VSM results revealed the adjustment of zinc oxide's diamagnetism to paramagnetism and ferromagnetism through the introduction of non-magnetic ions.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Engineering, Chemical
Xing Qin, Hui Chen, Jihong Pang, Lei Zhao, Jinhua Zhang
Summary: TiN nanoparticles were prepared using a Ni-catalysed carbothermal reduction nitridation process. Nickel was found to significantly promote the reaction and enhance the efficiency of carbothermal reduction nitridation.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Lei Zheng, Mingyu Zhang, Kejian He, Cunqian Fang, Chen Zeng, Qizhong Huang
Summary: In this study, core-shell-structured hybrid ZrC-SiC composite nanoparticles were successfully synthesized by adding Mg, which enhanced the sinterability of the ZrC-SiC nanoparticles. The addition of MgCl2 not only strengthened the network structure of ZrC-SiC gel, but also led to the formation of an amorphous Mg-Si-O oxide coating on the nanoparticle surfaces, enhancing the sinterability of the ZrC-SiC nanoparticles.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
J. G. Ke, R. Liu, Z. M. Xie, M. Sun, K. Jing, G. F. Zhang, X. Cheng, X. Q. Liu, X. P. Wang, X. B. Wu, C. S. Liu, Q. F. Fang
Summary: In this study, tungsten carbide (WC) nanopowders with an average size of about 10 nm were synthesized using a sol-gel preparation, reduction and carbonization process, and high-energy ball milling. This method provides a facile and cost-effective way to prepare nanoscale WC powders suitable for industrial production.
Article
Chemistry, Multidisciplinary
Mao Tang, Shiji Lu, Lili He, Xiaodong Zhu, Wei Feng, Wanming Zhang
Summary: This study synthesized pure ZnO and ZnTiO3/ZnO composite photocatalysts using zinc acetate and butyl titanate, and found that the ZnTiO3/ZnO composite with a Ti/Zn molar ratio of 0.2 exhibited the highest photocatalytic activity. Exceeding this ratio decreased the photocatalytic performance of the composites.
Article
Materials Science, Ceramics
Long Chen, Zhengjuan Wang, Zhenhai Xue, Guohong Zhou, Shiwei Wang
Summary: Mullite ceramics with different alumina content were synthesized using the sol-gel method, and the synthesis process, microstructure evolution, mechanical, and optical properties were studied. The results showed that the alumina content affected the grain size and properties of the ceramics.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Xing Qin, Jinhua Zhang, Changming Ke, Hui Chen, Lei Zhao
Summary: The precursor gel was prepared using a sol-gel method, and ultrafine TiN was obtained by Fe-catalyzed carbon thermal reduction nitridation reaction. The addition of Fe significantly promoted the reaction, resulting in ultra-fine TiN nanoparticles with an average size of about 24 nm. The promotion effect of Fe is due to its role in providing nucleation sites for amorphous titanium oxide and facilitating the dissociation of N2.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Amit Kumar, Piyush K. Patel, K. L. Yadav, Yogendra Singh, Naveen Kumar, Abdullah, G. Sharma, Satyendra Singh
Summary: The effect of grain boundary resistance (G(BR)) and grain resistance (G(R)) on the magnetoelectric coupling in multiferroic composite thick films of BiFeO3 (BFO) nanocrystalline powder and poly vinylidene-fluoride (PVDF) polymer is significant. The study shows that grain boundary resistance plays an important role in strengthening the magnetoelectric effect in the BFO-PVDF system, with the BFO50 sample demonstrating promising results for device and sensor applications.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Yan Gao, Sheng'an Yang, Ji Ma, Hui Zhang, Yunrui Yang, Kaizhao Wang, Jin Hu, Qingming Chen
Summary: Nd-doped La0.72Ca0.28MnO3 ceramic materials were synthesized using the sol-gel method, showing excellent TCR and MR at low magnetic fields, which could be potentially utilized in magnetic sensors and bolometers.
Article
Materials Science, Ceramics
Ananthakrishnan Nitu, Ananthakrishnan Srinivasan
Summary: Magnetic interactions in sol-gel-derived bioactive magnetic glass-ceramics (MGCs) were studied using EPR, magnetic susceptibility, and magnetization techniques. The intensity and linewidth of resonance absorptions showed composition dependence. Dipolar interaction dominated in MGC samples with iron oxide content ≤ 4 wt.%, while a crossover to super-exchange interaction occurred in samples with higher iron oxide content. The magnetic behavior differed between MGC samples with iron oxide content ≤ 6 and ≥ 8 wt.%, with the latter exhibiting superparamagnetic behavior correlated with the percentage of magnetic phases present.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Yajun Wang, Changan Tian, Minzheng Zhu, Jie Yang, Xiaoling Qu, Cao Chen, Cao Wang, Yang Liu
Summary: Samarium, gadolinium, and yttrium co-doped ceria and BaIn0.3Ti0.7O2.85 composite materials were prepared and investigated for their potential application as electrolyte in intermediate-temperature solid oxide fuel cells (IT-SOFCs). The composite material exhibited high oxide ion conductivity, moderate thermal expansion, and low electrical activation energy, indicating its promising performance.
Article
Materials Science, Ceramics
Zhihui Ding, Xiaoli Huang, Wulong Liu, Ik Jin Kim, Young-Hwan Han
Summary: ZrB2 powders of high purity were successfully synthesised using microwave heating at 1400 degrees C, with a temperature 300 degrees C lower than traditional methods. The study investigated the effects of raw material ratios and synthesis temperature on powder synthesis, and found temperature to have a significant impact on the purity of the synthesised zirconium boride.
ADVANCES IN APPLIED CERAMICS
(2021)
Article
Engineering, Chemical
Hendrix Abdul Ajiz, Kenny Santoso, Jason Aditya Purnama, Widiyastuti Widiyastuti, Tantular Nurtono, Heru Setyawan
Summary: The photoluminescence characteristics of ZnO/SiO2 composite particles were investigated by using the consecutive sol-gel spray drying method. The addition of sodium lauryl sulfate (SLS) as a particle morphology control agent could reduce the particle diameter and increase the particle uniformity. Increasing the excitation wavelength and adding silica to the composite particles could enhance the photoluminescence emission intensity without causing a shift in the emission peaks.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Crystallography
Hector A. Chinchay-Espino, Gina M. Montes-Albino, Carlex M. Morales-Cruz, Segundo E. Dobbertin-Sanchez, Segundo Rojas-Flores
Summary: The effect of Co substitution on the structural and magnetic properties of BiFeO3 was studied, and Co-BiFeO3 nanopowders were successfully synthesized via the sol-gel method, exhibiting ferromagnetic properties at 15% Co doping.
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.