Article
Materials Science, Ceramics
Bing He, Kailei Lu, Wenxin Du, Xiaolan Zhou, Xu Huang, Yanli Shi, Zhangyi Huang, Haomin Wang, Jianqi Qi, Tiecheng Lu
Summary: Mono-dispersed and high-flowable spherical AlON powders were successfully obtained in this study. Spherical pure AlON particles with a mean size of approximately 51.9 μm were prepared from a C/Al2O3 mixture through spray drying technology and a calcined step at 1750 degrees C for 0.5 h. The as-prepared spherical AlON powders showed better flowability and filling properties compared to the irregular-shaped AlON powders obtained by conventional methods. This work provides a paradigm for obtaining highly flowing spherical ceramic powders, which is important for the preparation of complex-shaped AlON ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zhou Zou, Dengwei Zhang, Arun Murali, Chaoyi Chen, Li Liu, Yuanpei Lan, Junshan Zhang, Fengyuan Liu, Zhiyao Chu, Deyang Ning, Junqi Li
Summary: Size-controllable spherical yttrium carbonate powders with D-50 ranging from 225 to 743 nm were synthesized using urea and Y(NO3)(3)·6H(2)O. The diameter of yttrium carbonate spheres increased with the concentration ratio of urea/Y3+, temperature, and aging time. After decomposition, the D-50 of Y2O3 decreased to 632 nm, with a range of 126-632 nm. Homogeneously doping 6 mol. % Eu3+ into Y(OH)CO3·1.3H(2)O resulted in Y2O3: Eu3+ spherical powder with a strong emission peak at 613 nm. The developed method and obtained size-controllable spherical powders have various potential applications.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
A. M. Voiculescu, S. Hau, G. Stanciu, C. Gheorghe
Summary: A series of Eu3+ doped SrLaGaO4 ceramic phosphors were successfully synthesized, and their optical properties were investigated. The samples showed strong red emission at 620 nm under blue and UV excitation, with a good color purity of 88% for the 10Eu: SrLaGaO4 phosphor. The temperature-dependent luminescence intensity ratio of the samples suggested that the 10Eu: SrLaGaO4 phosphor could be used as a temperature sensor over a wide range of temperatures and as a narrow-band red-emitting phosphor for pc-WLEDs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Chemical
Zengxiao Cai, Abu Naser Md Ahsanul Haque, Renuka Dhandapani, Maryam Naebe
Summary: Cotton gin trash (CGT) is a by-product of cotton ginning process. Its contents can vary depending on seasons, cotton harvesting methods, and ginning processes. This study aims to achieve micro-sized CGT powder and investigate the particle size and properties of the powders prepared from different batches and drying techniques. The results provide a sustainable method for powder production and offer insights for choosing the right method to obtain desired particle size and properties of CGT.
Article
Chemistry, Analytical
Tao Cai, Dongfang Li, Juyong Jung, Mirae Kim, Chung-Hwan Jeon, Kyung Chun Kim
Summary: In this study, a two-dimensional visualization of the oxygen concentration field in a high-temperature environment was achieved using the phosphorescence of Y2O3:Eu3+. The spectrum and decay time of the phosphorescence were found to be directly related to the oxygen concentration. Measurements based on phosphorescence intensity and decay lifetime were demonstrated, showing the powerful application capability of oxygen concentration measurement at a high-temperature environment based on the phosphorescence of Y2O3:Eu3+.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Ceramics
Ying-Jeng James Li, Wen-Chen Chien, Chia-Ju Tang, She-Huang Wu, Yi-Shiuan Wu, Chun-Chen Yang
Summary: In this study, Li-rich Li1.2Ni0.13Mn0.54Co0.13O2 (LMNCO) composite cathode material with hierarchical nano/micro-sphere structures was synthesized through a two-step spray-drying method. Surface modification with polyimide (PI) at different weight ratios improved the electrochemical properties of the LMNCO cathode, leading to enhanced cycle stability and discharge capacity. The PI-coated LMNCO composite cathode materials show potential for use in high-performance lithium-ion batteries.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Chemical
Katholiki Stavra, Fotini Plati, Eleni Pavlidou, Adamantini Paraskevopoulou
Summary: Different carrier materials were used to dehydrate lemon juice through various drying techniques, resulting in powders with distinct characteristics. Freeze-dried powders exhibited irregular and compact morphology, while spray-dried powders had more uniform particle sizes.
Article
Engineering, Chemical
Ferhan Balci-Torun, Feramuz Ozdemir
Summary: This study aimed to enhance the encapsulation stability of natural strawberry flavour using optimal spray drying conditions, resulting in encapsulates with high yield and solubility. Spray-dried encapsulates were spherical, smooth, and homogeneous, while freeze-dried encapsulates were heterogeneous and spongy. The particle size of spray-dried samples was significantly smaller than freeze-dried samples.
Article
Chemistry, Multidisciplinary
Cheng Wen, Runzi Zhou, Zenghui Qiu, Junjiao Yang, Xin Zhang, Haijun Xu
Summary: Y2O3:Eu3+ particles have strong fluorescence emission, stable physical and chemical properties, and low toxicity, making them widely used in various technological fields. However, their hydrophilic nature limits their application. This study successfully modified the surface of Y2O3:Eu3+ particles using HDTMS, which resulted in improved hydrophobic and oleophilic properties without affecting their crystal structure and fluorescence. This research provides a reference for the preparation and application of hydrophobic and oleophilic Y2O3:Eu3+ particles in organic media.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Food Science & Technology
Boran Yang, Kirk Kealey, Jinru Chen, Kevin Mis Solval
Summary: This study aimed to explore the feasibility of producing polyphenol and pectin powders from pomegranate peels grown in Georgia and successfully developed microencapsulated polyphenol powders. The powders prepared with a blend of maltodextrin and pectin had higher antioxidant activities and water solubilities, indicating their potential as novel food ingredients.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Nagihan Caglar, Ertan Ermis, Muhammed Zeki Durak
Summary: This study produced and characterized spray-dried and freeze-dried sourdough powders, which were used to make sourdough breads. Differences in powder properties were observed depending on the method used. The use of powder samples at different blending ratios affected the physicochemical properties of sourdough breads.
JOURNAL OF FOOD ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Emily D. Cranston, Marc Massicotte
Summary: The recent demand for surfactant-free products has led to the use of bio-based materials instead of petroleum-derived components. This study investigated the drying process of corn oil emulsions stabilized by various materials and found that spray drying was the fastest, most scalable, and least energy-intensive technique. However, it was also the most sensitive to emulsion concentration and high temperature shear stress.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Materials Science, Ceramics
Jianing Wang, Chaohui Wang, You Wang, Meiling Dong, Yuan You, Zhiyi Rong, Huinan Liu, Xiaodong Zhang, Zhongyu Zhu, Yuhang Wang
Summary: Yb2Si2O7 powders doped with SiC whisker were prepared as feed stocks for environmental barrier coatings through ball milling, spray drying, and vacuum sintering. The particle size of the powder can be optimized by adjusting the spray drying parameters. Vacuum sintering improves the density and flowability of the powders, while the SiC whisker maintains its original morphology.
CERAMICS INTERNATIONAL
(2022)
Review
Food Science & Technology
Yue Zhang, R. Pandiselvam, Yanhong Liu
Summary: The surface composition of dairy powders is an important parameter in the dairy industry and is directly related to the techno-functional properties of dairy powder products. Various factors, such as the bulk composition of raw milk, liquid dairy processing, drying process, and storage conditions, can influence the surface composition of dairy powders. The mechanisms underlying the variations in particle surface composition include mechanical properties, redistribution of milk fat globules, adsorption competition and interactions of ingredients at the water/air interface, dehydration-induced alterations in particle structure, solid/solutes segregation differentiation during spray drying, and lactose crystallization-induced increase in surface fat. Future research should focus on the effects of emerging processing technologies on the surface composition modification of dairy powders.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Article
Pharmacology & Pharmacy
Yuncheng Wang, Dipesh Khanal, Adit B. Alreja, Hang Yang, Rachel Y. K. Chang, Waiting Tai, Mengyu Li, Daniel C. Nelson, Warwick J. Britton, Hak-Kim Chan
Summary: This study investigated the feasibility of producing inhalable powders of endolysins Cpl-1 and ClyJ-3 using spray drying method with excipients. The results showed that ClyJ-3 lost its bioactivity before the drying process, while Cpl-1 maintained its bioactivity in the spray-dried powders. Cpl-1 formulations with leucine and either lactose or trehalose exhibited promising physico-chemical properties and aerosol performances. These findings suggest that endolysin Cpl-1 can be formulated as spray dry powders for potential treatment of pulmonary infections.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Electrochemistry
Hakgyoon Yu, Jong Su Han, Gil Chan Hwang, Jung Sang Cho, Dong-Won Kang, Jae-Kwang Kim
Summary: In this study, a high potential cathode material LiMn0.8Fe0.2PO4 was successfully synthesized using a modified mechanical activation method and applied in all-solid-state high-voltage rechargeable lithium ion batteries. By compositing a high dielectric constant ceramic Al2O3 in the Li1.3Al0.3Ge1.7P3O12 (LAGP) based solid electrolyte, a higher lithium ion transference number was achieved, leading to significantly low capacity fade rates over 300 cycles.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Rakesh Saroha, Jung Sang Cho, Jou-Hyeon Ahn
Summary: This study presents an effective strategy of co-doping to delay structural variations and inhibit transition metal migration in Li-rich cathode materials for lithium-ion batteries, resulting in improved cycling stability and high-rate capability.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Jong Su Han, Gil Chan Hwang, Hakgyoon Yu, Du-Hyun Lim, Jung Sang Cho, Matthias Kuenzel, Jae-Kwang Kim, Jou-Hyeon Ahn
Summary: This study introduces a new manufacturing method for flexible batteries with metal-free current collectors, successfully integrating them into flexible lithium metal batteries, and enhancing high temperature stability and safety characteristics with a hybrid solid electrolyte. The result is fast and stable lithium-ion storage capabilities with excellent cycling performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Rakesh Saroha, Jou-Hyeon Ahn, Jung Sang Cho
Summary: Lithium-sulfur battery technology has high theoretical discharge capacity and energy density, making it suitable for electric vehicles and energy storage systems, but faces barriers to commercialization. Recent effective strategies include designing cathodes to absorb dissolved polysulfides and adjusting the concentration of dissolved lithium polysulfide electrolyte.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Polymer Science
Kyungwho Choi, Tae-Soon Kwon, Jinhong Kim, Sehui Yun, Jung Sang Cho, Yong Tae Park, Jihyun Ryu, Chungyeon Cho
Summary: Polymer nanocomposites were prepared via layer-by-layer assembly and showed improved flame retardancy. The thickness of films increased linearly with the number of layers deposited, and nano-scaled structures were visualized using AFM and SEM. Introducing carbon nanotubes further enhanced the flame retardancy of the nanocomposites.
Article
Polymer Science
Jungsang Cho, Gautam Ganapati Yadav, Meir Weiner, Jinchao Huang, Aditya Upreti, Xia Wei, Roman Yakobov, Brendan E. Hawkins, Michael Nyce, Timothy N. Lambert, David J. Arnot, Nelson S. Bell, Noah B. Schorr, Megan N. Booth, Damon E. Turney, Gabriel Cowles, Sanjoy Banerjee
Summary: This manuscript reports on the research results of using gel electrolytes as an alternative to liquid electrolytes in rechargeable Zn-MnO2 batteries. The optimized gel electrolyte showed higher capacity retention and the ability to limit overdischarge of Zn anodes. Commercial tests demonstrated exceptional cycle life for the gel electrolyte, and the batteries outperformed lead-acid batteries in solar off-grid applications.
Article
Chemistry, Multidisciplinary
Gi Dae Park, Yun Chan Kang, Jung Sang Cho
Summary: Phase-pure ZnMn2O4 nanopowders and their aggregated microsphere powders were successfully obtained by a simple spray drying process followed by post-annealing. The optimized post-annealing temperature of 800 degrees C resulted in ZnMn2O4 nanopowders with high capacity and good cycle performance. The aggregated ZnMn2O4 microsphere exhibited improved cycle stability, with a capacity retention of 84% after the second cycle.
Article
Engineering, Multidisciplinary
Young Hoe Seon, Rakesh Saroha, Jung Sang Cho
Summary: This study introduces hierarchical porous nanofibers as lightweight multifunctional interlayers for stable Li-S batteries. The nanofibers are composed of TiO2 quantum dots and metal-organic-framework-derived hollow N-doped C nanocages, providing high conductivity and porous structure.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Energy & Fuels
Ki Cheon Nam, Young Hoe Seon, Parthasarathi Bandyopadhyay, Jung Sang Cho, Sang Mun Jeong
Summary: In this study, porous nanofibers composed of Fe@ZIF-67-derived dual-phase Co3O4/Fe3O4 hollow nanospheres and N-doped graphitic C (N-GC) were prepared as high-performance lithium-ion battery anodes. The optimized ZIFs containing both Co and Fe ion nodes were achieved by adding additional Fe salt in the precursor solution of ZIF-67. The obtained nanostructure exhibited a high discharge capacity and showed potential for applications in energy storage systems.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Jong-Hyeok Choi, Sunghun Choi, Jung Sang Cho, Hyun-Kyung Kim, Sang Mun Jeong
Summary: A new electrochemical fabrication method has been developed to synthesize a Si@graphite@SiC composite anode with high cyclability and low swelling, effectively improving the volume expansion issue of silicon anodes and enhancing electrode cycle life, suitable for high-energy density batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
O. Hyeon Kwon, Jun Ryu, Ji Hye Lee, Hee Woong Kim, Jung Sang Cho, Sang Mun Jeong, Dong-Won Kang, Jae-Kwang Kim
Summary: In this study, a novel stretchable solar module/rechargeable lithium-ion battery-integrated energy device is proposed. This device has advantages such as high operation voltage, long lifespan, and high self-charging efficiency. Its stable performance under various current density and stretching conditions paves the way for the development of highly stretchable integrated energy systems.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Chan Sic Kim, Jae Seob Lee, Rakesh Saroha, Yoon Beom Park, Yun Chan Kang, Dong-Won Kang, Sang Mun Jeong, Jung Sang Cho
Summary: The growth of unique nanostructures with multicomponent systems is a renowned strategy for developing advanced materials for various energy storage applications. In this study, multicomponent high-performance nanofibers were synthesized as anodes for lithium-ion batteries. The porous and highly conductive N-doped rGO scaffold provided structural integrity and rapid charge transfer, while the hollow and ultrafine LDO nanocrystals offered sufficient space and absorption capacity to handle the volume stress generated during repeated charge-discharge cycles.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Rakesh Saroha, Jung Sang Cho
Summary: This paper proposes a novel nanostructure synthesis method for developing more realistic and sustainable host materials with feasible battery parameters for various energy storage applications.
Article
Engineering, Environmental
Jang Min Choi, Jae Seob Lee, Jung Sang Cho
Summary: A one-pot synthetic strategy was developed for the fabrication of sea urchin-like hollow microspheres comprising MoOx nanorods attached via N-doped C. The strategy utilized diethylenetriamine as a key starting material for the formation of MoOx nanorods constituting the hollow shell. The resulting nanostructure exhibited superior cycling performance as an anode for Li-ion batteries, with a discharge capacity of 794 mA h g(-1) after 400 cycles at 0.2 A g(-1) and low decay rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Rakesh Saroha, Jang Hyeok Oh, Young Hoe Seon, Yun Chan Kang, Jae Seob Lee, Do Won Jeong, Jung Sang Cho
Summary: The introduction of a functional interlayer between the cathode and anode in lithium-sulfur battery technology leads to significant improvements in electrochemical performance. Hierarchically structured porous, conductive, and multifunctional N-doped carbon nanofibers are developed as functional interlayers for advanced LSBs, enhancing the rate capability and stable cycling performance of the Li-S cell.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
