Article
Polymer Science
Daniel Navas, Sandra Fuentes, Alejandro Castro-Alvarez, Emigdio Chavez-Angel
Summary: Sol-Gel is a low-cost and flexible synthetic route that can produce a wide range of micro- and nanostructures with small variations in synthesis parameters. By changing precursors, solvents, temperature, and reaction times, the morphology and properties of the products can be modified. This method shows great potential for future applications in various technological fields.
Article
Chemistry, Physical
Joshua P. Smith, Kurt E. Sickafus, Claudia J. Rawn, Cordell Delzer, Ching-Fong Chen, Charles Melcher
Summary: Li-containing garnet compounds have potential as transparent ceramic dual-mode scintillators, with Li5La3Ta2O12 showing promise due to its properties. This study focused on establishing thermal processing conditions for a sol-gel method and consolidating powders to form high-density ceramics. The experiments showed the presence of two cubic Li5La3Ta2O12 garnet phases with different lattice parameters, indicating a remaining excess of Li in the ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Jiamei Han, Xiaohan Yu, Shuaizhao Jin, Xiaoli Guan, Xin Gu, Yixin Yan, Kaikai Wu, Liming Zhao, Jiabin Jiang, Jubo Peng, Hongxi Liu, Xiang Liu
Summary: Nd1-xSrxMnO3 (NSMO) ceramics with different Sr doping levels were fabricated using the sol-gel method. The results showed that Sr doping significantly reduced the resistivity of the ceramics, which can be explained by the DE interaction and SPH model. The Nd0.70Sr0.30MnO3 ceramic exhibited a high PTC of resistivity (16.69% K-1) at 197.5 K and the NSMO ceramics maintained a stable NTC of resistivity (-1% K-1) in a temperature range of 210.6-342.5 K. Hence, it is important to explore materials with high PTC and NTC for applications in electronic switches and infrared bolometers.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Mebark Elhamel, Zoulikha Hebboul, Mohammed Elhabib Naidjate, Ahmed Draoui, Ali Benghia, Mohamed Abdelilah Fadla, Mohammed Benali Kanoun, Souraya Goumri-Said
Summary: This study reports the synthesis of pure double perovskite Eu2NiMnO6 in nano ceramic forms using solvothermal and sol-gel routes without europium and magnesium nitrate. X-ray powder diffraction reveals a monoclinic P21/n structure and the particle size is determined to be around 43 and 59 nm. The chemical, homogeneous, and optical properties of nanoparticles are confirmed by SEM, UV-vis absorbance, and FTIR spectra. The calculated energy band gap of Eu2NiMnO6 using density-functional theory is close to the experimental value.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Ceramics
A. S. Basaleh, Ahmed Shawky, Z. Zaki
Summary: The study demonstrates that perovskite-based photocatalyst modification with simple oxides can achieve visible-light degradation of antibiotic waste in water. CdO plays an important role in promoting photoinduced charge separation and significantly enhancing photocatalytic degradation performance.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Multidisciplinary
Umair Nissar, Javed Ahmad
Summary: This article investigates the A-site substituted double perovskite oxides (DPOs), synthesizing R2CoMnO6 (R = Nd, Y, Ho, and Er) DPOs using the auto-combustion sol-gel method. Various analyses were conducted, and the results showed that these DPOs possess diverse properties and potential applications, particularly in photovoltaic applications.
Article
Materials Science, Multidisciplinary
Swati Jharwal, Anurag Gupta, Manoranjan Kar, Arvind Kumar
Summary: A study on the crystal structure and physical properties of nanoparticles of lead-free double perovskites, La2CoMnO6 (LCMO) and Sr-doped La2-xSrxCoMnO6 (LSMO), prepared by the sol-gel synthesis method, has been conducted. The results show that the doping concentration affects the crystallite size, crystal structure, and band gap of the materials. The nanoparticles exhibit semiconducting behavior and magnetic transitions. These findings are significant for understanding the properties of lead-free double perovskite nanoparticles.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
Huan Chen, Jie Wang, Yu Gao, Shenghao Ai, Zhengdong Wu, Ting Zhou, Mengjiao Liu, Yan Zhao, Xin Lai, Jian Bi, Daojiang Gao
Summary: Novel double perovskite Na1-xEu1+x/3MgWO6 phosphors were synthesized via sol-gel route, exhibiting strong luminescence properties and excellent thermal stability, making them suitable for application in warm white LED lighting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Hongjian Luo, Yan Li, Tao Li, Zhijin Wang, Linhai Wang, Yun-Quan Liu
Summary: Double perovskite type catalysts with the formula of La2CoxFe2-xO5+d (x = 1.5, 1 and 0.5) were synthesized via a modified sol-gel method, and showed improved anti-coking and sulfur-resisting performance for steam reforming of n-hexadecane. Characterizations revealed that the special structure of double perovskite minimized coke formation and improved sulfur resisting, due to the generation of oxygen vacancies. The molar ratio of Co to Fe also had an effect on catalyst activity, and the catalyst LCF-2 (for x = 1) with a porous structure exhibited the best catalytic activity and stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Ceramics
Jingang Guo, Hui Zhang, Yule Li, Shengan Yang, Junfeng Li, Qingming Chen
Summary: The effects of different substitution elements on the structure, electrical transport properties, and magnetic properties of La0.64RE0.06Ca0.3MnO3 polycrystalline ceramics were analyzed. The results showed that as the ionic radius of the substitution elements decreases, the cell volume decreases, the grain size increases, the peak resistivity increases exponentially, the metal-insulator transition temperature decreases linearly, the temperature coefficient of resistance first decreases and then increases, and the magnetoresistance gradually increases.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yu-Kun Syue, Kuo-Chin Hsu, Te-Hua Fang, Chun- Lee, Chi-Jen Shih
Summary: In this study, zinc oxide (ZnO) nanofibers were prepared using the electrospinning method and combined with La0.8Sr0.2FeO3 (LSFO) perovskite film to create a ZnO/LSFO heterostructure gas sensor. The sensor showed a good sensing response to H2S gas and exhibited gas selectivity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Michael L. Tarlton, Suntharalingam Skanthakumar, Danielle Hutchison, Alexander J. Gremillion, Allen G. Oliver, Richard E. Wilson
Summary: A hybrid double perovskite phase with the formula ((CH3)(4)N)(2)KLn(NO3)(6) was synthesized to study the periodic chemical properties and structural chemistry of rare earth elements. This series represents a rare isostructural series spanning the entirety of the rare earth elements, with homoleptic 12-coordinate rare earth metal ions.
INORGANIC CHEMISTRY
(2022)
Article
Physics, Multidisciplinary
Abid Ahmad, Sarir Uddin, Guang-Ping Zheng, Muhammad Farooq Nasir
Summary: Ferroelectric dense ceramic compositions of (1-x)((Bi1/2Na1/2)(0.94)Ba0.06TiO3)-xBa(1/2)Sr(1/2)TiO(3) were fabricated via sol-gel method. The temperature dependent dielectric properties revealed two phase transitions in the samples. High energy storage density and efficiency were observed at specific temperature and electric field, making them promising for energy storage applications.
Article
Materials Science, Ceramics
Si Cheng, Feng Jiang, Guo Feng, Jianmin Liu, Jian Liang, Lifeng Miao, Zhenhong Bao, Yongzhi Yu
Summary: Ultrafine Cr,Mg-codoped Al2TiO5 green ceramic pigment with nanocrystal sizes less than 50 nm and high-temperature stability up to 1200 degrees C was successfully prepared via nonhydrolytic sol-gel method and heating treatment at 750 degrees C. The effects of Cr and Mg content on phase composition, crystal structure, thermal stability, and color property were investigated. The optimized Cr,Mg-codoped Al2TiO5 pigment exhibited excellent green color and maintained its properties even after heating treatment at high temperatures, indicating its potential application in high-temperature ceramic decoration.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Justinas Januskevicius, Zivile Stankeviciute, Dalis Baltrunas, Kestutis Mazeika, Aldona Beganskiene, Aivaras Kareiva
Summary: In this study, aqueous sol-gel synthesis and dip-coating techniques were used to prepare YIG, YIP, and TIP bulk and thin films. The coatings, influenced by substrate surface, exhibited mixed phases of both garnet and perovskite.
Article
Chemistry, Multidisciplinary
Benjamin Bissig, Carlos Guerra-Nunez, Romain Carron, Shiro Nishiwaki, Fabio La Mattina, Fabian Pianezzi, Paolo A. Losio, Enrico Avancini, Patrick Reinhard, Stefan G. Haass, Martina Lingg, Thomas Feurer, Ivo Utke, Stephan Buecheler, Ayodhya N. Tiwari
Article
Materials Science, Multidisciplinary
Benjamin Bissig, Martina Lingg, Carlos Guerra-Nunez, Romain Carron, Fabio La Mattina, Ivo Utke, Stephan Buecheler, Ayodhya N. Tiwari
Article
Materials Science, Multidisciplinary
Martina Lingg, Annina Spescha, Stefan G. Haass, Romain Carron, Stephan Buecheler, Ayodhya N. Tiwari
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Romain Carron, Christian Andres, Enrico Avancini, Thomas Feurer, Shiro Nishiwaki, Stefano Pisoni, Fan Fu, Martina Lingg, Yaroslav E. Romanyuk, Stephan Buecheler, Ayodhya N. Tiwari
Review
Materials Science, Multidisciplinary
Martina Lingg, Stephan Buecheler, Ayodhya N. Tiwari
