Article
Materials Science, Ceramics
Perla J. Resendiz-Hernandez, Diego H. de Hoyos-Sifuentes, Edgar O. Resendiz-Flores, Rocio M. Ochoa-Palacios, Gerardo Altamirano-Guerrero
Summary: In this study, MgFe2O4 nanoparticles with different Mg/Fe molar ratios were synthesized using the sol-gel method. The Support Vector Regression model was applied for the first time to predict the synthesis process. XRD and TEM analysis confirmed that heat-treated nanoparticles with a Mg/Fe ratio of 0.75 at 700°C exhibited an inverse spinel structure, corresponding to the pure magnesium ferrite phase. The use of the SVR predictive model facilitated the efficient synthesis of pure magnesium ferrite phase with experimental validation.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xinyang Zhang, Zhaofeng Chen, Junying Liu, Sheng Cui
Summary: A sol-gel method was used to synthesize and characterize ZnFe2O4 nanoparticles with a specific surface area of about 23 m(2)/g. By adjusting the drying and sintering conditions as well as the ratio of citric acid to metal ions, the optimal conditions for the highest emissivity of 0.934 were identified at 800 degrees C with a sintering temperature of 900 degrees C and a C/M ratio of 1:1.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Engineering, Chemical
Patrick Ehi Imoisili, Emeka Charles Nwanna, Tien-Chien Jen
Summary: This study successfully prepares silica nanoparticles (SNPs) from South African fly ash using a sol-gel hydrothermal approach, providing a new idea for sourcing silica. The SNPs produced have an average diameter of about 60 nanometers according to scanning electron microscope and transition electron microscope studies. In wastewater treatment, SNPs demonstrate the potential to remove Cd2+.
Article
Materials Science, Ceramics
A. Moussaoui, D. Bulyga, S. K. Evstropiev, A. I. Ignatiev, N. Nikonorov, Y. F. Podruhin, R. Sadovnichii
Summary: Gadolinium oxide nanopowders doped with neodymium were prepared using a modified Pechini method with double nanoparticle stabilization. Polyvinylpyrrolidone acted as an additional stabilizer and fuel during the synthesis process, contributing to the high quality of the synthesized nanopowders. Various analysis techniques were used to study the thermal evolution of the materials at different stages of treatment, including photoluminescence, FTIR spectroscopy, DTA/TG, XRD, and SEM analysis.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Javier Camargo, Leandro Ramajo, Miriam Castro
Summary: The influence of synthesis methods on the properties of Bi-0.5(Na0.8K0.2)(0.5)TiO3-Ni0.5Co0.5Fe2O4 composites was studied. Different routes were used to synthesize each phase, and the composites were prepared with varying fractions. The properties of the composites were evaluated, and it was found that the combination of composition and synthesis routes modulated the magnetoelectric properties.
Article
Chemistry, Physical
Guojing Wang, Guang Jia, Jianru Wang, Hanxiao Kong, Yaxian Lu, Cuimiao Zhang
Summary: Novel rare earth activator ion-doped perovskite-type La4Ti3O12 phosphors were synthesized via the Pechini sol-gel method, and the crystal structure and luminescence properties can be controlled by varying calcination conditions. Optimal doping concentrations and calcination conditions can enhance the luminescence performance of the phosphors, showing potential for LED and optoelectronic applications. Additionally, up-conversion luminescence properties of doped samples under NIR excitation were also investigated, demonstrating excellent up-conversion performances for potential applications in rare earth luminescent materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Ivana Parchovianska, Milan Parchoviansky, Beata Pecusova, Ondrej Hanzel, Amirhossein Pakseresht
Summary: This work focuses on the fabrication of lanthanum cerate (La2Ce2O7, LC) powders via two chemical routes and investigates their suitability for thermal barrier coating applications. The results show that the LC powders have high phase stability and their spheroidization efficiency is influenced by powder size and morphology.
Article
Chemistry, Physical
Siavash Mohammad Alizadeh, Iman Moghim, Mohammad Golmohammad
Summary: In this study, garnet material with the composition of Li6.4Ga0.2La3Zr(2-x)YxO12(x = 0,0.1,0.3,0.5) was synthesized using the combustion sol-gel method. The phase evolution, microstructure, and ionic conductivity were analyzed. Yttrium was found to promote densification and grain growth, but excessive yttrium resulted in the formation of a secondary phase. The highest ionic conductivity was achieved in the Li6.4Ga0.2La3Zr1.7Y0.3O12 sample with a relative density of 96.6%. Lower sintering temperature and holding time were used compared to previous reports with similar densities and conductivities, thanks to the effectiveness of Ga/Y in promoting sintering and the good sinterability of the synthesized powders. This synthesis method has the potential for large-scale production due to its reduced energy and time requirements.
SOLID STATE IONICS
(2023)
Article
Materials Science, Multidisciplinary
Diego H. de Hoyos-Sifuentes, Perla J. Resendiz-Hernandez, Jose A. Diaz-Guillen, Roca M. Ochoa-Palacios, Gerardo Altamirano-Guerrero
Summary: The present study synthesized MgFe2O4 nanoparticles with different molar ratios of Mg/Fe by sol-gel and coated them with polyethylene glycol (PEG) using the agitation method. The synthesized nanoparticles and nanocomposites were characterized using various techniques, including XRD, TGA, DTA, SEM-EDX, TEM, VSM, and FTIR. The results showed the structural and morphological properties of the nanoparticles and demonstrated their potential for biomedical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Shanigaram Mallesh, Wongyu Jang, Ki Hyeon Kim
Summary: The correlation between microstructure, magnetic, and high-frequency electromagnetic properties of porous MnFeCoO4 structures synthesized by simple sol-gel auto combustion method was studied. Annealing temperature had a significant impact on the morphology and properties, influencing pore size, particle size, and development of hexagonal planes on particle surfaces. The magnetization and dielectric loss were found to increase with annealing temperature, reaching maximum values at 1200 degrees C.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Yao Yang, Jianqiang Bi, Xicheng Gao, Kangning Sun, Linjing Qiao, Guandong Liang, Hongyi Wang
Summary: A new nanoscale high-entropy boride (Hf0.2Nb0.2Cr0.2Ta0.2Mo0.2)B2 was synthesized using the sol-gel method, with a low temperature of 1650 degrees C and an average particle size of 62.09 nm. X-ray diffraction confirmed its hexagonal single-phase structure without oxide impurities. The electrochemical performance of the HEB powders with multiphase and high-entropy single phase was studied, showing a 27% increase in specific capacitance compared to the multiphase powders. The HEB powders electrode exhibited a high capacitance retention of 97.03% after 5000 cycles.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
K. Manikandan, Mookkandi Palsamy Kesavan, A. Thirugnanasundar, N. M. Abdul Khader Jailani, A. Jafar Ahamed
Summary: The research focused on studying the effect of tungsten doping on titanium dioxide nanoparticles, revealing that increased W doping changes the phase of TiO2 to rutile and affects the morphology of the particles. The nanoparticles showed effective cytotoxicity against HeLa cancer cell lines but no notable cytotoxicity against normal embryonic kidney cell lines.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Xiaomeng Lou, Cuimiao Zhang, Ziman Yu, Yan Yang, Rumeng Zuo, Guang Jia
Summary: A variety of lanthanide ions doped bismuth titanate (Bi4Ti3O12) luminescent materials with excellent downconversion (DC) and up-conversion (UC) luminescence performance have been successfully fabricated via a simple sol-gel approach. The phase structure of orthorhombic Bi4Ti3O12 (BTO) and the location of lanthanide activator ions in the BTO crystal have been confirmed. The Eu3+, Yb3+/Ln3+ (Ln = Er, Tm, and Ho) doped Bi4Ti3O12 samples exhibit characteristic red, green, blue, and green emissions under UV or NIR excitation. The optimized doping concentrations and annealing conditions have been determined.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Danyal Ahmad, Nasir Mehboob, Abid Zaman, Nabeel Ahmed, Kashif Ahmed, Muhammad Mushtaq, Khaled Althubeiti, Asad Ali, Fozia Sultana, Khalid Bashir
Summary: The Ce-doped Ni0.5Cd0.5CexFe2-xO4 cobalt ferrite was synthesized using the sol-gel auto-combustion method. XRD analysis revealed crystal structure parameters and calculated density and porosity. SEM images showed agglomerated particles with a porous morphology. The increase in Ce concentration resulted in an increase in dielectric constant and a decrease in dielectric loss tangent, while the magnetic properties showed nonlinear changes.
Article
Materials Science, Multidisciplinary
Xingming Zhao, Jingran Meng, Yang Qi, Xiaoming Lu, Dongmei Ma, Wei Wei, Fufa Wu, Tianlin Wang
Summary: Bi2212 high-temperature superconducting thin films (HTSFs) were prepared on SrTiO3 (100) substrates using metal nitrates as raw materials and the Pechini sol-gel method. EDTA and PVA were employed to improve the dissolution characteristics of Bi2212 solution. The effects of various parameters on film properties were systematically investigated, and it was found that a higher concentration of PVA led to reduced solubility of the Bi2212 solution. Notably, a 1% concentration of PVA resulted in exceptional epitaxial properties, enhanced Bi2212 phase purity, reduced surface roughness, and higher Tc for the fabricated Bi2212 thin film.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Reza Mohassel, Mehdi Shabani-Nooshabadi, Masoud Salavati-Niasari
Summary: Hydrogen energy plays a key role in novel renewable energy production/consumption technologies. Traditional hydrogen energy systems suffer from low density, high production cost, low efficiency, and storage complications. Solid-state hydrogen storage technology has addressed some of these issues, but there are remaining unknown points, particularly in metal oxides. Hydrogen sorption on layered materials or inside porous materials shows promise for high-performance hydrogen sorption.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Farzad Namvar, Masoud Salavati-Niasari, Fereshteh Meshkani
Summary: A group of rare-earth metals functionalized mesoporous Ni-M/Al2O3 (M = Tb, Dy, Nd) composite oxides were prepared and applied in the CO2 methanation process. The addition of terbium (Tb) improved the catalytic performance, particularly at low temperatures. The superior catalytic performance of 25Ni-5Tb-Al2O3 could be attributed to the appropriate fabrication method and the promotion effect of terbium.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Aazam Jafarinejad, Masoud Salavati-Niasari, Rozita Monsef, Hadis Bashiri
Summary: Innovation of photocatalysts with acceptable performance and easy recyclability through magnetic separation is a crucial challenge for researchers, as these materials have the potential to improve environmental health. Fe2O3 nanostructures were effectively loaded onto ZnS/ZnIn2S4 nanocomposites via a glycothermal process. The study investigated the impact of the amount of Fe2O3 nanostructures on the structural, physical, magnetic, and photocatalytic properties of the resulting nanocomposites. The magnetic recyclable photocatalysts exhibited a flower-shaped microstructure assembled from nanosheets. The ZnS/ZnIn2S4/Fe2O3 nanocomposites showed higher saturation magnetization than the binary ZnS/ZnIn2S4 nanocomposites. Photocatalytic decolorization experiments demonstrated high removal efficiencies for Rhodamine B and Methyl orange solutions using the ZnS/ZnIn2S4/Fe2O3 nanocomposites. Additionally, the nanocomposites could be easily separated and recycled multiple times with a degradation efficiency of 60.83%. The magnetic ZnS/ZnIn2S4/Fe2O3 nanocomposites are suitable for large-scale applications in industrial water treatment systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Reza Mohassel, Faezeh Soofivand, Yamamah Jawad BahrAluloom, Merzah Kareem Imran, Mehdi Shabani-Nooshabadi, Masoud Salavati-Niasari
Summary: In this study, an ErMnO3/ErMn2O5/CuO/g-C3N4 nanocomposite was synthesized and used for H2 storage. The nanocomposite was prepared through in-situ synthesis of ErMnO3/ErMn2O5/CuO (NC-1), followed by the addition of g-C3N4 to prepare ErMnO3/ErMn2O5/CuO/g-C3N4 nanocomposite (NC-2). The presence of CuO did not affect the optical property of ErMnO3/ErMn2O5, while the addition of g-C3N4 increased the band gap due to particle agglomeration on ErMnO3. The magnetic properties varied in each step, with ErMnO3 exhibiting ferromagnetic behavior that changed to paramagnetic in NC-1, and ferromagnetism behavior in NC-2. Furthermore, CuO and g-C3N4 were found to enhance the H2 storage capacity of ErMnO3/ErMn2O5.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Acoustics
Atefeh Panahi, Mojgan Ghanbari, Elmuez A. Dawi, Rozita Monsef, Russul Reidh Abass, Aseel M. Aljeboree, Masoud Salavati-Niasari
Summary: Thulium vanadate (TmVO4) nanorods were synthesized using Schiff-base ligands through a sonochemical method, and they exhibited promising photocatalytic activity. The crystal structure and morphology of TmVO4 were optimized by varying the Schiff-base ligands, H2Salen molar ratio, sonication time and power, and calcination time. The specific surface area was determined to be 24.91 m2/g, and the bandgap was found to be 2.3 eV, indicating its potential for visible light photocatalytic applications. The highest efficiency of 97.7% was achieved under visible light when 45 mg TmVO4 nanocatalysts were present in 10 ppm Eriochorome Black T solution at pH = 10.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Pourya Mehdizadeh, Mina Jamdar, Makarim A. Mahdi, Waleed K. Abdulsahib, Layth S. Jasim, Seyede Raheleh Yousefi, Masoud Salavati-Niasari
Summary: A novel and stable Tb-Co-O nanocomposite photocatalyst was synthesized through a one-pot microwave route and exhibited excellent photocatalytic efficiency in wastewater treatment. The nanostructures possessed narrow size distribution, good optical properties, and unique crystal structures. Among various experimental conditions, TbCoO3/TbO1.81 nanocomposites with a molar ratio of 1:3 (Tb:Co) showed the best performance in dye degradation.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Javad Ebrahimian, Maryam Khayatkashani, Nasrin Soltani, Halah T. Mohammed, Nahid Tavakkoli, Mina Jafari, Masoud Salavati-Niasari
Summary: In this study, ZnO-Red Ochre nanocomposite was green synthesized by using Rosa Damascena (RD) extract (RDZRONCs). The RDZRONCs were used to modify the carbon paste electrode (CPE) for the electrochemical determination of the anticancer drug 5-fluorouracil (5-FU). The electrochemical behavior of 5-FU at the RDZRONCs/CPE was investigated using cyclic voltammetry (CV), differential pulse voltammetry (DPV), chronoamperometry (CA), and chronocoulometry (CC).
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Wenya Lei, Chaofan Zhang, Rui Qiao, Mahalingam Ravivarma, Haixia Chen, Farshad Boorboor Ajdari, Masoud Salavati-Niasari, Jiangxuan Song
Summary: This study presents a gel polymer electrolyte (GPE) interlayer to stabilize the Li|LAGP interface and address the challenges caused by side reactions and poor thermal stability. The GPE, composed of a solvate ionic liquid and a hyperbranched polyanionic copolymer, ensures excellent compatibility and protection between LAGP and Li metal anode. Additionally, the introduction of a solvate ionic liquid with non-inflammability effectively avoids thermal runaway between lithium metal and LAGP at high temperatures.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Atefeh Panahi, Rozita Monsef, Elmuez A. Dawi, Alaa S. Hussein, Masoud Salavati-Niasari
Summary: In order to improve the photocatalytic efficiency, researchers successfully prepared thulium vanadate (TmVO4) nanostructures by simplifying the preparation process. Multiple factors such as saccharides, calcination temperature, and molar ratio were considered, and various dyes and concentrations were studied to enhance catalyst performance. The results showed that TmVO4 could degrade 83.5% of methyl violet (MV) within 90 minutes and remained stable in the recycle test.
Article
Energy & Fuels
Mandana Khaksar, Layth S. Jasim, Makarim A. Mahdi, Waleed K. Abdulsahib, Mehdi Mousavi-Kamazani, Masoud Salavati-Niasari
Summary: This study focuses on the hydrogen storage ability of sol-gel synthesized Ce2Y2O7 nanoribbons as active materials. The impact of different carbonous materials (such as graphene oxide, nitrogen-doped graphene quantum dots, and g-C3N4) on the hydrogen storage capacity of Ce2Y2O7 nanoribbons was compared. The carbonous nanocomposites provided were characterized using various methods to identify their phase purity, shape, and porosity. Galvanostatic charge-discharge profiles were performed for all samples to achieve optimal capacitance. The results showed that the nanocomposites of GO/Ce2Y2O7, N-GQDs/Ce2Y2O7, and g-C3N4/Ce2Y2O7 had maximum discharge capacities of 656, 686, and 757 mAhg(-1), respectively, while pristine Ce2Y2O7 nanoribbons had a discharge capacity of 643 mAhg(-1) after 15 cycles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Mahin Baladi, Elmuez A. Dawi, Masoud Salavati-Niasari
Summary: Electrode materials for electrochemical hydrogen storage (EHS) were synthesized using the sol-gel process with PrCoO3 Perovskite, CuO, and Graphitic carbon nitride. Flower-like structures with PrCoO3 nanoparticles on scaly-shaped CuO on g-C3N4 nanosheets were observed by SEM. The effect of natural fuel and maleic acid on the synthesis of PrCoO3 was compared. X-ray diffraction showed pure phase of PrCoO3 at 700 degrees C, but impurity phases were present at 600 and 800 degrees C. PrCoO3/CuO/g-C3N4 exhibited higher hydrogen storage capacity compared to pristine PrCoO3. The improved performance suggests the potential application of PrCoO3/CuO/g-C3N4 in electrochemical hydrogen storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Samira Alinavaz, Maryam Ghiyasiyan-Arani, Elmuez A. Dawi, Masoud Salavati-Niasari
Summary: Hydrogen has received extensive attention in the field of new energy, leading to numerous studies on hydrogen production, storage, and use. Among these, mixed metal oxide materials with double layer hydroxides are primarily studied for their hydrogen storage capacity. Comparing the capacity of Ho3Fe5O12/Mg2Al(OH)(7) nanocomposites with different ratios to pristine LDH, it has been demonstrated that the 1:1 ratio of Ho3Fe5O12 to Mg2Al(OH)(7) in the nanocomposites significantly enhances the storage capacity (422 mAhg(-1)) compared to pristine LDH (213 mAhg(-1)).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Mandana Khaksar, Elmuez A. Dawi, Safaa H. Ganduh, Layth S. Jasim, Waleed K. Abdulsahib, Makarim A. Mahdi, Masoud Salavati-Niasari
Summary: The morphologies of active materials have an impact on hydrogen storage performance. Changing the synthesis conditions can modify the size and morphology of active materials. Nanostructured Ce2Y2O7 with five different morphologies was synthesized using a sol-gel process assisted by trimessic acid. Charge-discharge chronopotentiometry tests were conducted under the same conditions to compare the effects of Ce2Y2O7 nanostructures on hydrogen storage capacity in KOH electrolyte at a current of 1 mA. The results show that the highest capacity is observed in very thin nanoribbons (643 mAhg(-1)), while the lowest capacity is found in agglomerated ribbons assembled with particles (276 mAhg(-1)).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Fatemeh Sadat Razavi, Davood Ghanbari, Elmuez A. Dawi, Masoud Salavati-Niasari
Summary: Photocatalysis is a promising strategy for reducing water pollution. Pt-Au/TiO2/BaFe12O19 nanofibers were synthesized using the electro-spinning technique. The nanocomposite showed excellent photocatalytic performance under visible light, achieving a high decolorization rate and reaction rate coefficient for Acid Red 14. The study demonstrated the potential of noble metals Pt and Au in enhancing dye degradation.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Engineering, Multidisciplinary
Reza Nobakht Hassanlouei, Mansour Jahangiri, Elmuez A. Dawi, Fahimeh Vafaee, Masoud Salavati-Niasari
Summary: In various industries, it is crucial to understand the relationship between transfer properties like viscosity and thermal conductivity coefficients for design and engineering purposes when processing non-Newtonian fluids, especially viscoelastic fluids. However, most studies on nanofluids have been limited to inadequately considering only three components of viscoelastic fluids. In this research, multiwalled carbon nanotubes were chemically modified to obtain nanoparticles, which were then used to prepare viscoelastic-based nanoliquids (VNLs). The stability, thermal conductivity, and viscosity of the VNLs were examined. The findings provided insights into the behavior and properties of these complex fluids.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
