Article
Materials Science, Multidisciplinary
Shou-Feng Xue, Yi-Juan Li, Feng-Hua Zheng, Xue Bian, Wen-Yuan Wu, Cheng-Hao Yang
Summary: CeO2 microspheres were prepared by one-step ultrasonic spray pyrolysis method and demonstrated to have particle sizes ranging from 0.01 to 1.08 μm, with the majority being less than 0.5 μm. However, the presence of residual chlorine in the fabricated microspheres negatively impacted the performance of SOFC. A water washing method was effective in reducing the residual chlorine content in CeO2 microspheres, providing a cleaner manufacturing process for SOFC electrode/electrolyte materials.
Article
Materials Science, Ceramics
Andre L. da Silva, Fabiane J. Trindade, Jean-Lou Dalmasso, Bruno Ramos, Antonio Carlos S. C. Teixeira, Douglas Gouvea
Summary: This research synthesized TiO2 microspheres using ultrasonic spray pyrolysis, which allowed for continuous production of TiO2 nanocrystals and promoted phase stability and limited particle coarsening. The synthesized porous anatase TiO2 microspheres exhibited superior photocatalytic activity, surpassing the commercial standard TiO2 P25 by approximately 60%.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Srecko Stopic, Felix Wenz, Tatjana-Volkov Husovic, Bernd Friedrich
Summary: The synthesis of silica particles through ultrasonic spray pyrolysis at high temperature allows for controlled morphology and size, with experimental results matching theoretical calculations. Characterization using X-ray diffraction and scanning electron microscopy is common practice. Compared to other methods, ultrasonic spray offers the advantages of easy setup of individual process segments, one-step continuous synthesis, and the ability to synthesize nanoparticles from various precursors.
Article
Materials Science, Multidisciplinary
Francisco J. Carol-Coronel, Dina Tobia, Enio Lima, Rodolfo D. Sanchez, Martin E. Saleta
Summary: In this study, Cr1.8Ti0.2O3+z (CTO) nanoparticles with hollow microsphere structure were prepared using ultrasonic spray pyrolysis technique. Magnetic susceptibility and electron spin resonance spectroscopy revealed a para- to antiferromagnetic transition at (306 ± 1) K for CTO. Detection experiments on acetone vapors showed that CTO particles produced by ultrasonic spray pyrolysis have the potential to be highly effective volatile organic compounds detectors, with a linear response to acetone concentration. This synthesis route is economically feasible and allows for large scale production.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Ceramics
The Ky Vo
Summary: Mo-modified TiO2 microspheres prepared by spray pyrolysis method showed high removal efficiency towards tetracycline antibiotics and exhibited good photocatalytic activity and stability.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Acoustics
Myeongjun Ji, Yong-Ho Choa, Young-In Lee
Summary: The study introduced a simple and cost-effective one-step method for synthesizing black TiO2-x microspheres based on ultrasonic spray pyrolysis. This approach directly introduces oxygen vacancies into the TiO2 products without the need for a reduction step, and the synthesized microspheres exhibit superior photocatalytic activity under visible light irradiation.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Materials Science, Ceramics
The Ky Vo
Summary: Bimetallic NiMo-supported Al2O3@TiO2 core-shell microspheres were developed for the hydrodeoxygenation (HDO) of syringol. The NiMo@Al2O3 microspheres containing 20 wt% Ni and 10 wt% Mo were prepared by sol-gel and spray pyrolysis, and a TiO2 anatase shell was decorated onto their surfaces. The decorated spheres showed improved hydrocarbon selectivity in the HDO reaction compared to the undecorated spheres. Coating the NiMo@Al2O3 microspheres with a hydrophobic TiO2 shell improved the HDO performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Lidija Simic, Srecko Stopic, Bernd Friedrich, Matej Zadravec, Ziga Jelen, Rajko Bobovnik, Ivan Anzel, Rebeka Rudolf
Summary: The development of new multicomponent nanoparticles is important due to their functional properties. The study synthesized complex concentrated nanoparticles (CCNPs) from an initial cast alloy and found that complete recycling of the alloy is not possible. The synthesized CCNPs had an average diameter of 200 nm.
Article
Materials Science, Multidisciplinary
Xiaoting Yuan, Si Lin, Kang Zhao, Yingchao Han
Summary: A new ultrasonic spray-assisted emulsion method was developed for preparing PLA microspheres, reducing preparation time and enhancing control over microsphere morphology, which provides technical assistance for microsphere preparation in tissue engineering.
Article
Chemistry, Physical
Tingting Wang, Bingguo Xue, Hao Cui, Yingying Zhang, Manmen Liu, Jialin Chen, Ming Wen, Wei Wang, Xudong Sun, Shaohong Liu
Summary: LuAG:Ce is an important color converter in the white lighting industry, with LuAG:Ce film offering advantages such as efficient heat dissipation and rare earth conservation. The preparation process and photoluminescence performance of LuAG:Ce film were investigated, showing that increasing Ce3+ doping concentration enhanced the emission intensity. By coupling Ce3+ doped LuAG:Ce film with a blue laser, white light emission was successfully achieved.
Article
Materials Science, Multidisciplinary
Congcong Rong, Jianan Zhang, Song Chen, Yixuan Wang, Toshiyuki Ikoma, Xiaona Li, Weiyi Chen
Summary: Silica hollow microspheres were prepared as biocompatible cell carriers using emulsified gelatin microspheres as sacrificial templates. SEM observations showed their spherical morphology with a hollow structure and a diameter of 50-200 μm. FT-IR spectrum revealed the presence of Si-O-Si bonds. Gelatin microspheres served as supporting matrix and sacrificial templates for the formation of hollow structure. The silica hollow microspheres were found to be biocompatible and supported cell attachment and proliferation when seeded with osteoblast MC3T3-E1 cells, indicating their potential as biocompatible cell carriers.
Article
Environmental Sciences
The Ky Vo
Summary: In this study, mesoporous microspheres of Al2O3 @TiO2 with improved adsorption and photocatalytic performance were successfully prepared. The incorporation of amorphous γ-Al2O3 was found to enhance the removal of tetracycline and promote the separation and migration of photo-generated holes and electrons. The study provides a simple and scalable method for manufacturing Al2O3-decorated TiO2 microspheres.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Soichiro Torai, Taro Ueda, Kai Kamada, Takeo Hyodo, Yasuhiro Shimizu
Summary: Porous (pr-)SnO2-based powders were synthesized using ultrasonic spray pyrolysis with home-made polymethylmethacrylate (PMMA) microspheres as templates. The addition of CuxO to the pr-SnO2 powder improved its sensing properties for acetone and toluene. The 0.8 wt% Cu-added pr-SnO2 sensor showed the highest acetone response at 350 degrees C. The addition of CuxO decreased the concentration of carrier electrons and the acetone-oxidation activity, leading to the improvement of the acetone-sensing properties of the pr-SnO2 sensor.
Article
Biochemistry & Molecular Biology
Julia C. C. Steinbach, Fabio Fait, Hermann A. A. Mayer, Andreas Kandelbauer
Summary: This study focuses on the synthesis and properties of hybrid organic/inorganic nanocomposites. A quantitative model with high robustness and predictive power was established, demonstrating the complex nonlinear behaviors and partly synergistic interactions between process factors in determining the material properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Ali Akbar Hussaini, Mehmet Okan Erdal, Kemal Dogan, Mustafa Koyuncu, Murat Yildirim
Summary: In recent years, there has been increasing focus on the photodiode properties of MS devices in order to enhance the performance of light sensing devices. In this study, LiCoO2 thin film was synthesized through a sol-gel-based electrospinning method and used as an interlayer for fabricating Al/LiCoO2/n-Si photodiode. The characterization results showed that the LiCoO2 thin film had a crystallite size of 37.75 nm. Electrical characterization using current-voltage and current-transient measurements demonstrated that the Al/LiCoO2/n-Si photodiode exhibited good behavior and a high rectifying ratio, with significant responsivity and detectivity. These findings suggest that LiCoO2-based devices can be utilized in optoelectronic applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)