Article
Energy & Fuels
Ping Yi, Siyu Xie, Ting Li, Jia Deng, Tie Li, Run Chen
Summary: This study investigates the spray evolution and thermal pyrolysis of heavy fuel oil (HFO) and its blends with #2 diesel. The results show that under high pressure, the residual mass of low sulfur HFO significantly increases, and the residual weight of blended HFOs also increases due to volatile components trapped inside the viscous shell generated by polymerization or asphaltene fractions.
Article
Chemistry, Inorganic & Nuclear
M. M. Arghavan, A. A. Sabouri-Dodaran, M. Sasani Ghamsari
Summary: For the first time, nanocrystalline Yttrium(III)-pentaaqua-trinitrate powder has been prepared using a facile method. The powder was characterized by XRD, TGA, SEM, and HRTEM methods. The phase transition of the synthesized Yttrium(III)-pentaaquatrinitrate was evaluated using thermal decomposition, and the particle size was determined using the Scherrer equation and HRTEM.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Energy & Fuels
Ping Yi, Tie Li, Yijie Wei, Xinyi Zhou
Summary: The spray characteristics of low sulfur heavy fuel oil (HFO) were studied through experiments and numerical methods, revealing minimal impact from sulfurization on spray characteristics. Evaporation and pyrolysis penetration lengths were proposed as criteria for determining dominance of volatile and non-volatile components.
Article
Instruments & Instrumentation
C. Sreejith, Kiruthika Jayaseelan, Shijoy Thomas, Raghunathan Rengaswamy, Madivala G. Basavaraj
Summary: The synthesis of drug-loaded microparticles with precise control over size distribution and shape is essential. In this study, a method combining spinning disk atomization and precipitation is employed to produce drug-loaded polymeric microparticles with a narrow size distribution. The laboratory equipment designed with a non-contact seal system ensures operational and personnel safety while producing microparticles under moderate operating conditions.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Materials Science, Multidisciplinary
Esra Kaya, Ali Ugur, Arife Gencer Imer, Murat Aycibin, Yusuf Selim Ocak
Summary: The physical properties of ultrasonically spray deposited Yttrium (Y) doped tin dioxide (SnO2) have been experimentally and theoretically investigated in this study. The results show that yttrium doping influences the structural, optical and electrical properties of the SnO2 films, with an increase in optical transmittance and optical band gap observed with increasing yttrium doping. Y-doped films also exhibit lower resistivity, higher carrier concentration, and sufficient mobility, suggesting the important effect of yttrium doping on the optoelectronic properties of the nanostructured SnO2 film.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
S. Yilmaz, M. Tomakin, I. Polat, E. Bacaksiz
Summary: A study demonstrates the preparation and characterization of undoped and Y-doped CdS thin films through spray pyrolysis. The structural, optical, and electrical properties of the films are analyzed, and it is found that Y-doping affects the crystal quality, transparency, bandgaps, and carrier density of the CdS films. The 3% Y-doped CdS film exhibits the best electrical properties, making it a promising window layer for thin film-based solar cells.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Quanwei Li, Song Guo, Yang Cheng, Xuebing Chen, Zhendong Tang
Summary: Zinc hydroxide nitrate (ZHN) was synthesized using the chemical coprecipitation method (CCM) and the flame spray pyrolysis (FSP) method for adsorbing methyl orange (MO) pollutant in wastewater. The ZHN synthesized by FSP exhibited better adsorption performance compared to CCM.
MATERIALS & DESIGN
(2022)
Article
Engineering, Chemical
Jiapeng Yan, Hui Dong, Wenchang Wu
Summary: This article investigates the influence of different inlet methods on the gas-solid flow and particle settling rate in spray pyrolysis of magnesium nitrate. The results show that using a tangential inlet can increase the actual running distance of the hot-carrier gas and improve the settling rate of particles. The three tangential inlet mode is the best choice to maximize contact with the material and improve product yield.
PARTICULATE SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
K. Ravichandran, A. Jansi Santhosam, Omar M. Aldossary, Mohd Ubaidullah
Summary: Yttrium (Y) doped ZnO thin films with different doping concentrations (0, 1, 3 and 5 wt%) were investigated for their ammonia vapor sensing properties. The 5 wt% yttrium doped ZnO thin film exhibited excellent sensing response and fast response/recovery times, potentially due to the presence of oxygen vacancies and increased number of active sites caused by Y3+ ion substitution.
Article
Thermodynamics
Malte F. B. Stodt, Chenyang Liu, Shuiqing Li, Lutz Maedler, Udo Fritsching, Johannes Kiefer
Summary: This study investigates the flame spray pyrolysis of iron oxide nanoparticles using the new reference nozzle SpraySyn and applies the PS-LIBS technique to study particle formation under different precursor solutions. Significant differences in atomic emission spectra are observed when adding 2-ethylhexanoic acid to precursors, enabling differentiation between different particle formation routes. The experimental results provide deep insights into combustion and particle nucleation kinetics in spray flames, with potential applications for numerical simulations.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Chemistry, Applied
Jiapei Wang, Xibin Lu, Yingchao Zhang, Jiahui Zhou, Jiexi Wang, Shengming Xu
Summary: By using lithium nitrate (LiNO3) with low melting point and strong oxidation as a collaborative lithium salt, well-dispersed submicron and micron single crystal LiNi0.9Co0.055Mn0.045O2 (NCM90) cathode can be fabricated without extra unit operation. Particle size regulation and reduction of cation disorder can be achieved by adjusting the amount of LiNO3, resulting in improved electrochemical performance and lithium-ion diffusion kinetics.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Chemical
Georgia Kastrinaki, Margaritis Kostoglou, Athanasios G. Konstandopoulos
Summary: Stringent regulation is put in place to restrict global vehicle emissions, with advanced catalytic systems incorporating expensive platinum group metals for oxidation catalysis. In this study, porous silica and alumina particles doped with Pt, Ce, and Na were synthesized and evaluated for their pore size distribution. The evaluation showed that samples with higher surface areas exhibited higher conversion curves for NO oxidation, indicating the importance of surface area in the oxidation kinetics. Additionally, the study also explored the correlation between reactant accessibility to in-pore Pt nanoparticles and catalytic activity using a reaction kinetic model.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Chemical
Hossein Vojoudi, Jahan B. Ghasemi, Ahmadreza Hajihosseinloo, Bahareh Bastan, Alireza Badiei
Summary: A hybrid nanocomposite of alumina and hematite was synthesized using ultrasonic spray pyrolysis technique, showing good adsorption performance with high adsorption capacities for polycyclic aromatic hydrocarbons such as anthracene, phenanthrene, and naphthalene. Kinetic models demonstrated a pseudo-second-order reaction, and the prepared adsorbent can be reused multiple times without significant decrease in adsorption performance.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Physics, Condensed Matter
V. Ganesh, T. H. Alabdulaal, I. S. Yahia
Summary: In this study, high-quality In2S3: Y thin films with various concentrations of Yttrium dopant were prepared for photo sensor applications using the nebulizer-aided spray pyrolysis process. The effects of Yttrium doping concentration on the characteristics of the films were investigated, including microstructure, morphology, composition, and optical properties. It was found that adding 2% Yttrium increased UV absorption, reduced the energy gap, and resulted in improved photoelectric characteristics.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Thermodynamics
Penghua Guo, Bin Zhang, Tiantian Li, Ben Xu, Jingyin Li
Summary: Spray evaporation is a promising desalination technology for high-salinity wastewater, but previous numerical studies neglected salt precipitation. This study experimentally investigated the evaporation of brine droplets with salt precipitation using the pendent droplet method. A reaction engineering model was developed and integrated into ANSYS Fluent for numerical simulation. The study revealed that brine droplets have different behavior compared to pure water droplets, leading to different design requirements for the spray dryer.
APPLIED THERMAL ENGINEERING
(2023)