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Artykuły w czasopismach na temat „Hollow microspheres”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Liu, Liang, and Bao Cai Xu. "Preparing and Characterization of Hollow Ceramic Microspheres." Key Engineering Materials 512-515 (June 2012): 245–48. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.245.

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The hollow microsphere is a kind of new materials. It has a bright future for its excellent comprehensive performance. This article introduces a high-temperature synthetic technology on the basis of SHS to prepare new hollow ceramic microspheres. Reaction mechanism of hollow ceramic microspheres was studied. Results show that sphere, similar sphere and irregular powders constitute the spraying products. Sphere and similar sphere powders are hollow structure. Besides it also recommend the self-made equipments of collection that adopts three kinds of collections methods of static electricity, wa

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Ueki Peres, Cindy Yuri, Antonio Hortêncio Munhoz, L. F. Miranda, et al. "Concrete with Addition of Hollow Glass Microspheres." Materials Science Forum 820 (June 2015): 509–14. http://dx.doi.org/10.4028/www.scientific.net/msf.820.509.

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The addition of hollow glass spheres is interesting to reduce the thermal conductivity of the concrete pieces. This work aims to evaluate the concrete with addition of hollow glass microsphere with different combinations of dosage in concrete concerning strength and workability. Slump tests were performed in each dosage of concrete in order to evaluate the effect of glass microspheres in concrete mix. In each age of curing concrete, bodies-specimens underwent ultrasound to estimate the homogeneity of concrete with hollow glass microspheres, and testing of compressive strength. The analysis of

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3

Liu, Hu, Fa Jia Liu, Jian Jun Shi, Hui Chen, Hai Feng Bao, and Yong Song Liu. "Hierarchical Porous Hollow Microsphere for Drug Release." Advanced Materials Research 476-478 (February 2012): 1379–82. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1379.

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Hierarchical porous titanate nanotube hollow microspheres were synthesized through a template-hydrothermal method. First, SiO2@TiO2 core-shell structure was synthesized, and then titanate nanotube hollow sphere was prepared via a simple hydrothermal method. The dimension of the cavity could be simply tuned by controlling the size of SiO2 spheres. These hollow microspheres exhibited a unique porous structure, in which the nanotube hollow microsphere had a two-fold storage system including the cavity of the hollow sphere and the nanotube capability. Further, the microsphere demonstrated an impro

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4

Li, Rui, Guisen Fan, Xiao Ouyang, Guojun Wang, and Hao Wei. "Dynamic mechanical behaviors of epoxy resin/hollow polymeric microsphere composite foams under forced non-resonance and forced resonance." Composites and Advanced Materials 30 (January 1, 2021): 263498332110081. http://dx.doi.org/10.1177/26349833211008195.

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Composite foams with 10–50 vol% hollow polymeric microspheres were prepared using bisphenol A epoxy resin and polyetheramine curing agent as the matrix. The results demonstrated that the density, hardness, and static mechanical properties of the epoxy resin/hollow polymer microsphere composite foams, as well as their dynamic mechanical properties under forced non-resonance, were similar to those of polymer/hollow glass microsphere composite foams. At 25°C and under 1–100 Hz forced resonance, the first-order and second-order resonance frequencies of the composite foams shifted to the low-freque

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5

Tang, Bao Hua. "Study on Effect of the Modified Hollow Microspheres on the Foam Ability and Stability of Fire Fighting Foam." Advanced Materials Research 455-456 (January 2012): 1612–17. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.1612.

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In this paper, fluoroalkylsilane (F3C-(CF2)5-(CH2)2-Si (OC2H5)3, F-8261) was successfully used as surface modifier to prepare oleophobic hollow microspheres. Three-phase foam was directly fabricated by oleophobic hollow microspheres. The result shows that outstanding improvement in the stability and anti-burning properties of three-phase foam on oil were achieved through the oleophobic modification. The optimum reaction conditions were 12% of fire fighting protein，the addition of 50% of hollow microsphere and0.5% F-8261.

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6

Li, Rui, Guisen Fan, Peng Wang, Xiao Ouyang, Ning Ma, and Hao Wei. "Effects of silane coupling agent modifications of hollow glass microspheres on syntactic foams with epoxy matrix." Polymers and Polymer Composites 29, no. 9_suppl (2021): S1191—S1203. http://dx.doi.org/10.1177/09673911211046796.

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A syntactic foam was prepared from an epoxy resin matrix and modified hollow glass microsphere fillers. Modification by silane coupling agents with different molecular structures was analyzed, and the optimal content of the silane coupling agent was determined. The results demonstrated that all silane coupling agents enhanced the adhesion between the hollow glass microspheres and epoxy resin matrix, resulting in enhanced water absorption, compressive performance, tensile performance, and bending performance compared to those prepared using unmodified hollow glass microspheres. Among silane cou

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7

Wei, Chengzhen, Cheng Cheng, Junhong Zhao, et al. "Template-free synthesis of hierarchically porous NaCoPO4–Co3O4 hollow microspheres and their application as electrocatalysts for glucose." CrystEngComm 17, no. 24 (2015): 4540–46. http://dx.doi.org/10.1039/c5ce00535c.

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8

Wu, Hao, Juzheng Chen, Tianyi Jiang, et al. "Effect of Eccentricity Difference on the Mechanical Response of Microfluidics-Derived Hollow Silica Microspheres during Nanoindentation." Micromachines 15, no. 1 (2024): 109. http://dx.doi.org/10.3390/mi15010109.

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Hollow microspheres as the filler material of syntactic foams have been adopted in extensive practical applications, where the physical parameters and their homogeneity have been proven to be critical factors during the design process, especially for high-specification scenarios. Based on double-emulsion droplet templates, hollow microspheres derived from microfluidics-enabled soft manufacturing have been validated to possess well-controlled morphology and composition with a much narrower size distribution and fewer defects compared to traditional production methods. However, for more stringen

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9

Abdullah, Abqari Luthfi Albert, Shahidan Radiman, Wee Siong Chiu, Muhammad Azmi Abdul Hamid, and Fadhlul Wafi Badrudin. "Reduced graphene oxide-ZnO hollow microsphere composite for supercapacitor applications." SINERGI 29, no. 2 (2025): 539. https://doi.org/10.22441/sinergi.2025.2.023.

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Through a facile solvothermal synthesis process, a reduced graphene oxide-ZnO microsphere composite was produced at 180 °C for 24 hours. Raman spectroscopy, X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy were used to analyze the morphological structures of the material. The analysis revealed that hexagonal phase wurtzite ZnO nanoparticles assembled homogeneous microspheres, decorated on the graphene sheets by graphene oxide functional groups. The ZnO nanoparticles are about 30 nm in size and the microspheres are hollow. A possible growth me

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10

Romanov, Aleksey, Elena Romanova, and Evgeny Chernyshov. "Elaboration of technology for manufacturing aluminum-based metal-matrix composite material strengthened with hollow ceramic microspheres for using thereof in underwater equipment." MATEC Web of Conferences 298 (2019): 00060. http://dx.doi.org/10.1051/matecconf/201929800060.

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This paper deals with the study of capabilities for strengthening an aluminum alloy with hollow ceramic microspheres. The results of the microstructural analysis and the investigation of strength properties for the aluminum-silicon alloying system are described herein. For comparison Experiments have been carried out for comparison both with classical microspheres and with chromium- and chromium-carbide-coated microspheres to increase the melt adhesion to a microsphere

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11

Wang, Ying Chun, Shi Xiong Zhang, and Mei Chun Wang. "Chemical Stability and Thermal Property of Hollow Hydroxyapatite Microspheres Fabricated by a Glass Immersion Process." Applied Mechanics and Materials 198-199 (September 2012): 72–75. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.72.

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In recent years there has been increasing interest concerning the synthesis of hollow materials in nanometer to micrometer dimensions. Hollow hydroxyapatite(HAP) microspheres with pores on their surfaces were prepared by a Li-Ca-B glass in situ immersion conversion process in an aqueous phosphate solution at 37°C. The chemical reaction ability of the Li-Ca-B glass was studied by immersing the glass in SBF solution, and the phases of the reaction product were identified by the XRD method. The morphology, composition, phases and thermal property of the hollow HAP microspheres were investigated u

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12

Wang, Bin, He Jun Li, Yun Yu Li, Man Hong Hu, Jing Xian Xu, and Sheng Cao. "Preparation and Characterization of Resin-Derived Carbon Foams Containing Hollow Microspheres." Advanced Materials Research 941-944 (June 2014): 318–23. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.318.

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Resin-derived carbon foams with closed hollow spherical structure were prepared from mixtures of hollow phenolic microspheres and phenolic resin, followed by curing and carbonization. The resultant carbon foam had a bulk density of 0.45 g·cm-3. Effects of hollow microsphere on the on the compressive property and thermal conductivity of carbon foams were investigated. The results revealed that the hollow microspheres played an important role in improving compressive fracture toughness and lowering the thermal conductivity of carbon foams. The compressive fracture characteristics of carbon foam

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13

Zhang, Shangying, Qi Wang, Fengna Dai, et al. "Novel TiO2 Nanoparticles/Polysulfone Composite Hollow Microspheres for Photocatalytic Degradation." Polymers 13, no. 3 (2021): 336. http://dx.doi.org/10.3390/polym13030336.

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Nanosized titanium oxide (TiO2) material is a promising photocatalyst for the degradation of organic pollutants, whereas the difficulty of its recycling hinders its practical application. Herein, we reported the preparation of a novel titanium oxide/polysulfone (TiNPs/PSF) composite hollow microspheres by the combination of Pickering emulsification and the solvent evaporation technique and their application for the photodegradation of methyl blue (MB). P25 TiO2 nanoparticles dispersed on the surface of PSF microspheres. The porosity, density and photoactivity of the TiNPs/PSF composite microsp

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14

Ariunaa, Garnaad, Gunchin Burmaa, Lai Xiaoyong, and Wang Dan. "Gas Sensing Performance of Multiple-shell Hollow Silver and Hematite Composite Microspheres." Mongolian Journal of Chemistry 12 (September 24, 2014): 7–15. http://dx.doi.org/10.5564/mjc.v12i0.163.

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In this report, multiple-shell hollow silver and hematite composite microsphere has been prepared by using carbonaceous saccharide microsphere as template. The products were characterized by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX). The core size and shell thickness of hollow spheres obtained can be manipulated by changing the concentration of metal salt. The unique multiple-shell hollow silver and hematite composite microspheres may be potentially used as gas-sensor materials fo

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15

Cai, Xu Dong, Jian Jiang Wang, Bao Cai Xu, Hong Fei Lou, and Xing Jian Huo. "Hollow Multiphase Ceramic Microspheres of Al+Cr₂O₃+SiO₂ System Prepared by Self-Reaction Quenching Technology." Key Engineering Materials 512-515 (June 2012): 621–25. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.621.

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This paper aims to study preparation and mechanism of hollow ceramic microspheres. With Al+Cr2O3+SiO2+sucrose+epoxy resin as reactive system, Al2O3-based hollow ceramic microspheres are synthesized and reaction mechanism of hollow ceramic microspheres is established. Results show that the quenching products consist of hollow spherical or irregularly spherical particles and irregularly powders. Spherical or irregularly spherical particles are hollow structure and constitutive of Al2O3-SiC diphase and a few Cr3Si、Cr7C3. The preparation of hollow ceramic microspheres includes igniting by heating,

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16

Tani, Takao, Kazumasa Takatori, Naoyoshi Watanabe, and Nobuo Kamiya. "Metal oxide powder synthesis by the “emulsion combustion” method." Journal of Materials Research 13, no. 5 (1998): 1099–102. http://dx.doi.org/10.1557/jmr.1998.0151.

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Alumina powders were synthesized by the emulsion combustion method, using w/o (water in oil) type emulsions with different aqueous microsphere sizes. The effects of microsphere size on the size and shape of the synthesized powder were evaluated. The powders were spherical and hollow in shape with a very thin shell (from 10 to 20 nm in thickness) when synthesized from large aqueous microspheres (from 200 nm to 1 μm). The sizes and specific surface areas of the powders were consistent with those calculated. Large particles, which did not correspond to the microsphere size, were obtained from sma

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17

Xu, Bao Cai, Run Ze Yang, Rong Xia Duan, Xu Dong Cai, Jian Jiang Wang, and Long Zhang. "Self-Propagating High-Temperature Spraying Synthesis of Ferrites Hollow Microspheres." Advanced Materials Research 490-495 (March 2012): 3536–39. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.3536.

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The self-propagating high-temperature spraying synthesis (SHSS) route is evaluated for the synthesis of ferrite powders that are subsequently processed towards the manufacturing of high initial magnetic permeability. The powder samples are used for characterization by SEM, EDS and XRD. The results show that the obtained particles are hollow microspheres from nanometer dimension to several micrometers. The phase structure of hollow microspheres is the mixtures of ferrite and Fe2O3. Permittivity and permeability measurements are made on particles dispersed in a paraffin wax matrix. The microsphe

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18

Yu, Chuhong, Jing Peng, Jiuqiang Li, and Maolin Zhai. "pH-Responsive Hollow Polymeric Microspheres from Irradiated Cyclic Ether Aqueous Solution." Applied Sciences 11, no. 18 (2021): 8652. http://dx.doi.org/10.3390/app11188652.

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Smart hollow polymeric microspheres have been widely applied in various fields such as controlled release, drug delivery, catalysis, and so on. Herein, a facile, green and one-step template-free method is introduced for preparing pH-responsive hollow polymeric microspheres via gamma irradiation of cyclic ether aqueous solution. The hollow polymeric microspheres are synthesized by radiation-induced polymerization and following the self-assembly and self-organization of amphiphilic polymer with cyclic ethers as monomers in water. SEM, TEM, micro-FTIR, and NMR confirmed the morphology and structu

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19

Chen, Shi Jie, Ying Jie Li, Ren Jiang Lü, and Peng Wang. "Preparation of Functionalized Hollow ZnS Microspheres and their Analytical Application." Applied Mechanics and Materials 151 (January 2012): 281–85. http://dx.doi.org/10.4028/www.scientific.net/amm.151.281.

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Hollow ZnS microsphere were prepared by hydrothermal method and modified with L-Cysteine. The functionalized hollow ZnS microspheres were characterized using transmission electron microscopy(TEM), field-emission scanning electron microscopy(FESEM), X-ray diffractometer (XRD) and photoluminescence spectroscopy. They were used as fluorescence probes in the determination of ciprofloxacin. The pH value of the system was selected at pH 8.5 with excitation and emission wavelength at 270 nm and 423 nm. Under the optimum conditions, the fluorescence of hollow functionalized ZnS microspheres was enhanc

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20

Jiang, Mingxiu, Yuanyuan Yang, Jiawei Feng, Zhaopan Wang, and Wei Deng. "Construction and Regulation of Polymer@Silica Microspheres with Double-Shell Hollow Structures." Molecules 30, no. 4 (2025): 954. https://doi.org/10.3390/molecules30040954.

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Microspheres with well-defined hollow structures have been attracting interest due to their unique morphology and fascinating properties. Herein, a strategy for morphology and size control of hollow polymer@silica microspheres is proposed. Multilayer core–shell polymer microspheres, containing substantial carboxyl groups inside, evolve into microspheres with a 304 nm hollow structure after alkali treatment, which are used to construct hollow polymer@silica microspheres by coating the inorganic layer using the layer-by-layer (LBL) and sol–gel methods, respectively. The inorganic shell thickness

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21

Thitipha, Chimsook, and Thitiphan Chimsook. "Controlled Release Behaviors of Ketoprofen from Matrix Polymer of Chitosan and poly(ethylene glycol)." Advanced Materials Research 813 (September 2013): 399–402. http://dx.doi.org/10.4028/www.scientific.net/amr.813.399.

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The aim of present work was to prepare floating microsphere of ketoprofen using matrix polymer of chitosan and poly (ethylene glycol) by solvent diffusion method. The floating microsphere of ketoprofen was prepared from matrix polymer of chitosan and poly (ethylene glycol) with various composition ratios and evaluated such as particle size, drug compatibility and drug release of microspheres. The scanning electron microscopy of microspheres confirmed their hollow structures with smooth surface. Formulation CPK 4 to CPK 6 exhibited the best controlled release pattern in ketoprofen. The concentr

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22

d'Almeida, J. R. M. "Evaluation of the Compressive Yield Strength of Hollow Glass Microsphere – Epoxy Composites as a Function of the Microsphere/ Epoxy Interface Strength." Polymers and Polymer Composites 15, no. 6 (2007): 445–51. http://dx.doi.org/10.1177/096739110701500603.

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The compressive yield strength of glass microsphere – epoxy composites was evaluated as a function of the interface strength. The behaviour of composites with microspheres without any surface treatment was compared with that of composites fabricated with silane-treated and silicone oil-treated microspheres. Varying the hardener-to-epoxy ratio of the matrix also modified the interface. The results were compared with those derived from theoretical models, and it was shown that for hollow glass microsphere composites the effect of surface treatment can be quantitatively described using extant mod

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23

Qiao, Xiuqing, Fuchao Hu, Dongfang Hou, and Dongsheng Li. "Preparation and Characterization of SnO2/Ag Hollow Microsphere via a Convenient Hydrothermal Route." Journal of Nanoscience and Nanotechnology 16, no. 4 (2016): 4115–19. http://dx.doi.org/10.1166/jnn.2016.10878.

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SnO2/Ag hollow microsphere, assembled form SnO2 and Ag nanoparticles, was synthesized via a facile one-step hydrothermal synthesis method using Na2SnO3.3H2O, CO(NH2)2 and AgNO3 as raw materials. XRD, SEM, and TEM results revealed that the obtained SnO2/Ag hollow microsphere with diameters of ca.3∼5 μm was built from uniformly distributed rutile SnO2 and cubic Ag nanoparticles. Moreover, XPS results indicate the existence of strong interaction between Ag and SnO2 nanoparticles, rather than simply physical contact, endowing the SnO2/Ag hollow microspheres with excellent photocatalytic performanc

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24

Du, Kai, Jiao Yang, Gaojie Li, Yapeng Li, and Zewen Gan. "Template Synthesis of SnO₂ Hollow Microspheres and Enhanced Photocatalytic Activity." Science of Advanced Materials 16, no. 4 (2024): 435–41. http://dx.doi.org/10.1166/sam.2024.4655.

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The paper describes a methodology for fabricating hollow microspheres of tin dioxide by utilizing carbonaceous saccharide microspheres as templates. The fabricated SnO2 microspheres exhibit uniform morphology and high crystallinity, which were verified with X-ray diffraction analyses and electron microscopy images. Through controlling different solvent and heating rate, we can accurately control the uniformity, dispersion and surface morphology of the hollow microspheres. Additionally, the study explored the utilization of the prepared SnO2 hollow microspheres and SnO2 nanoparticles in the deg

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Chen, Pingxu, Nanbiao Ye, Chaoxiong He, et al. "Preparation of Polyacrylate Hollow Microspheres via Facile Spray Drying." Applied Sciences 9, no. 2 (2019): 228. http://dx.doi.org/10.3390/app9020228.

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Polyacrylate microspheres with a hollow structure were prepared by a facile spray drying method. The effects of spray drying process parameters, including inlet temperature, atomizer rotational speed, and feed speed, on the particle size, bulk density, and morphology of the resultant polyacrylate hollow microspheres were investigated and discussed. The mechanism for the formation of the polyacrylate hollow microspheres was proposed. This facile and scalable method for preparing hollow polymer microspheres is expected to be valuable to prepare various polymer hollow structures for widespread ap

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Wang, Shichao, Gaoqun Qiao, Xiaoyan Chen, Xinzhen Wang, and Hongzhi Cui. "Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for n-Butanol." Crystals 10, no. 11 (2020): 1010. http://dx.doi.org/10.3390/cryst10111010.

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ZnO hollow microspheres with a diameter of approximately 1.4 μm were successfully synthesized by a facile one-step chemical precipitation method using trisodium citrate dihydrate as a morphology control agent. The ZnO hollow microspheres consisted of nanoplates and had good dispersibility. Control experiments revealed that trisodium citrate dihydrate played an important role in regulating the morphologies of ZnO products. The morphology of the ZnO product evolved from nanowires to hollow microspheres with the addition of trisodium citrate dihydrate. The sensor response of ZnO hollow microspher

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Chung, Yi-Chen, Pei-Jie Xie, Yi-Wei Lai, and An-Ya Lo. "Hollow TiO2 Microsphere/Graphene Composite Photocatalyst for CO2 Photoreduction." Catalysts 11, no. 12 (2021): 1532. http://dx.doi.org/10.3390/catal11121532.

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In an attempt to improve the photocatalytic activity of anatase TiO2, we developed a composite photocatalyst composed of hollow TiO2 microspheres (hTS) and graphene. The hTS were prepared through a two-step hydrothermal process, where SiO2 microspheres with desirable diameters of 100–400 nm were used as sacrificial templates. Accordingly, the effect of the hTS cavity size on the activity of the catalyst in wet CO2 photoreduction (CO2PR) was studied. Furthermore, it was established that the hydrothermal pH value crucially influences the photocatalytic activity of the hTS photocatalyst, as well

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Wang, Hong Feng, Zhi Qi Wang, Ai Ping Wang, Zhi Bin Zhu, and Yan Sheng Yin. "A Green Approach to Preparing Nanosized Hollow Silica Microspheres with Waste Polystyrene." Advanced Materials Research 79-82 (August 2009): 1511–14. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1511.

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An attempt was made to prepare hollow silica microspheres by an oil-in-water emulsion which proposed to use waste polystyrene organic solution as oil phase. Effects of the kinds and amounts of surfactants and the concentration of waste polystyrene solution on the nanosized hollow silica microspheres were studied. The prepared hollow silica microspheres were characterized by TEM, XRD, TG-DTA and particle size distribution analyzer. The experimental results showed that the waste polystyrene organic solution was successfully treated as oil core and the cores could be removed at about 350°C. Meanw

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WANG, CHENG-CHIEN, JING-MO LIN, CHUN-RONG LIN, and SHENG-CHANG WANG. "PREPARATION AND APPLICATION OF HOLLOW SILICA/MAGNETIC NANOCOMPOSITE PARTICLE." International Journal of Modern Physics: Conference Series 06 (January 2012): 601–9. http://dx.doi.org/10.1142/s2010194512003844.

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The hollow silica/cobalt ferrite ( CoFe 2 O 4) magnetic microsphere with amino-groups were successfully prepared via several steps, including preparing the chelating copolymer microparticles as template by soap-free emulsion polymerization, manufacturing the hollow cobalt ferrite magnetic microsphere by in-situ chemical co-precipitation following calcinations, and surface modifying of the hollow magnetic microsphere by 3-aminopropyltrime- thoxysilane via the sol-gel method. The average diameter of polymer microspheres was ca. 200 nm from transmission electron microscope (TEM) measurement. The

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Pleshkov, L. V., A. N. Trofimov, A. V. Baykov, and A. A. Smirnov. "Morphology and properties of hollow glass microspheres. Part 2. On the relationship between the geometry of hollow glass microspheres and their consumer properties." Plasticheskie massy, no. 1-2 (March 19, 2021): 33–37. http://dx.doi.org/10.35164/0554-2901-2021-1-2-33-37.

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Using the example of hollow glass microspheres of the MS-VP-A9 gr.2 type the variability of the size, density, and strength of microspheres within a single batch was estimated. The dependence of the density and strength of hollow glass microspheres on their diameter has been studied. The kinetics of destruction of hollow glass microspheres during their loading by hydrostatic pressure is investigated.

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Shen, Zhong, Huang, Lin, and Wang. "Ordered ZnO/Ni Hollow Microsphere Arrays as Anode Materials for Lithium Ion Batteries." Materials 12, no. 7 (2019): 1193. http://dx.doi.org/10.3390/ma12071193.

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Well-designed nanostructures are very important for the electrochemical performance of lithium-ion electrode materials. In order to improve the electrochemical performance of ZnO-based anode materials, ZnO/Ni composite film, assembled by ordered hollow microsphere arrays, is designed and fabricated by means of magnetron sputtering technique using a colloidal crystal template composed of a monolayer of ordered polystyrene (PS) microspheres. The ordered hollow microsphere structure as well as the constituent Ni component of the ZnO/Ni film show major advantages of homogenizing electrode reaction

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Wang, Qing, Lin Ge Qiu, Qi Yao, Zhao Yang Ding, and Xi Fan Yan. "Effect of Hollow Glass Microsphere on Performance of Foam Concrete." Key Engineering Materials 539 (January 2013): 64–69. http://dx.doi.org/10.4028/www.scientific.net/kem.539.64.

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Dry density and compression strength of foam concrete are conflicting, there is a negative relationship between them. Hollow glass microsphere is a new lightweight material which is lightweight, high strength, low thermal conductivity and good thermal stability. In order to prepare lightweight and high-strength foam concrete, this paper researched the effects of different dosage on dry density and compressive strength of foam concrete through adding hollow glass microspheres. The results show that the thermal conductivity of foam concrete increased as the hollow glass microsphere increases, an

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Liu, Lin, Wen Juan Guo, Zhao Dai, Ming Jing Li, and Jun Fu Wei. "Preparation of Marcoporous and Hollow Silica Microspheres with Raspberry-Like Organic Composite Particles as Templates." Applied Mechanics and Materials 372 (August 2013): 13–16. http://dx.doi.org/10.4028/www.scientific.net/amm.372.13.

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Marcoporous silica hollow microspheres were prepared by poly (acrylic acid)@poly (ethyleneglycol dimethacrylate-co-4-vinylpyridine) (PAA@P(EGDMA-co-VPy)) composite particles with raspberry-like structure as the template. P(EGDMA-co-VPy) and PAA microspheres were prepared by distillation precipitation polymerization respectively. The raspberry-like organic composite polymer particles were obtained through the self-assembly of PAA microspheres on P(EGDMA-co-VPy) microspheres. Then, Silica layer was coated on the composite particles with Stöber method in an alkaline environment. The marcoporous s

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Zhang, Zhan Wen, Su Fen Chen, Yi Yang Liu, et al. "Hydrogen Storage in Small Size Hollow Microspheres." Advanced Materials Research 512-515 (May 2012): 1395–99. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1395.

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Hollow microspheres with less than 1 millimeter in diameter and several micrometers in wall thickness are attractive for hydrogen storage and transportation. The hollow microspheres can be made by drop tower technique, microencapsulation and vapor deposition methods. By immersion in high pressure hydrogen for a period of time at elevated temperature, the hollow microspheres can be filed with hydrogen gas at pressures up to one hundred MPa. The hydrogen mass fraction can be varied from 1% to 10% for hollow microspheres with different membrane hoop stress at failure.

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JIA, CHANGCHAO, YONGQIANG CAO, and PING YANG. "TiO2 HOLLOW SPHERES: ONE-POT SYNTHESIS AND ENHANCED PHOTOCATALYSIS." Functional Materials Letters 06, no. 03 (2013): 1350025. http://dx.doi.org/10.1142/s1793604713500252.

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Hollow TiO2 microspheres were successfully fabricated by metal salts with low solubility in ethanol acting as intelligent templates using a simple one-pot solvothermal method. Hollow spheres with large diameter were obtained using CuSO4⋅5H2O as templates while small ones were obtained using Sr(NO3)2 as templates. It is found that titanium precursor plays an important role for the morphology of samples. Solid TiO2 microspheres were prepared by using titanium tetrabutoxide (TBT). In contrast, bowl-like hollow microspheres were obtained by using titanium tetrachloride (TiCl4) . Furthermore, the a

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Cai, Baixue, Jieyun Liu, Pengna Wu, Shuai He, Bin Chen, and Yuanyuan Luo. "The preparation of hollow graphene microspheres and its application research in environmental management." Advances in Computer and Engineering Technology Research 1, no. 3 (2024): 35. http://dx.doi.org/10.61935/acetr.3.1.2024.p35.

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In this study, hollow graphene microspheres (GO-GE) were prepared using Gemini surfactants as hydrophobic modifiers by direct mixing method. By changing the amount of Gemini surfactants, hollow graphene microspheres with different surfactant/graphene ratios were obtained. Aromatic cyclic compounds were used as simulated pollutants to investigate the adsorption capacity of hollow graphene microspheres for simulated wastewater. The results showed that the amount of surfactant had a significant effect on the particle size, density, and hydrophilic properties of the hollow graphene microspheres. W

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Huo, Yuning, Jia Zhang, Xiaofang Chen, and Hexing Li. "Synthesis of Hollow CdS-TiO2Microspheres with Enhanced Visible-Light Photocatalytic Activity." International Journal of Photoenergy 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/907290.

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CdS-TiO2composite photocatalyst in the shape of hollow microsphere was successfully synthesized via the hard-template preparation with polystyrene microspheres followed by ion-exchange approach. The hollow CdS-TiO2microspheres significantly extended the light adsorption into visible light region, comparing to TiO2microspheres. It led to much higher photocatalytic activities of hollow CdS-TiO2microspheres than that of TiO2during the photodegradation of rhodamine B under visible light irradiations. Furthermore, the well-remained hollow structure could achieve light multireflection within the int

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38

Liu, Jay G., and David L. Wilcox. "Factors influencing the formation of hollow ceramic microspheres by water extraction of colloidal droplets." Journal of Materials Research 10, no. 1 (1995): 84–94. http://dx.doi.org/10.1557/jmr.1995.0084.

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Hollow ceramic microspheres of Al2O3, SiO2, and mullite have been prepared by the combination of an emulsion technique with a water extraction sol-gel method. Concentration of sol, initial droplet size, and water extraction rate of the system are found to be the important process parameters controlling the size and wall thickness of the hollow microspheres, and their influences are shown. A model that correlates the morphology of microspheres to concentration and water extraction rate is proposed and is in good agreement with the experimental observations. The capability and limitation of this

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S. Vereshchagin, Anton. "Influence of Alteration of Variance of Normal Distribution of Microsphere Cavity Radius on the Proccess of Helium Sorption by Microspheres." Siberian Journal of Physics 6, no. 2 (2011): 24–27. http://dx.doi.org/10.54362/1818-7919-2011-6-2-24-27.

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Theoretical investigation of the proccess of helium sorption by hollow permeable solid particles (microspheres) is done. Mathematical model of the proccess is derived under the assumption of uneven distribution of radius of microsphere cavity. It's shown that the rate of sorption changes insignificantly for investigated ranges of initial data within normal distribution of microsphere cavity radius

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Biswas, Shreyas. "Experimental Investigation and Design Analysis of Hollow Glass Microsphere loaded PP/ABS Composites." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (2022): 503–10. http://dx.doi.org/10.22214/ijraset.2022.39867.

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Abstract: The objective of the present is to investigate hollow glass microspheres (HGMs) experimentally and carry out design analysis of hollow glass microsphere loaded PP/ABS composites. The tensile and notched Charpy impact test of HGM-filled acrylonitrile-butadiene-styrene copolymer (ABS) and Polypropylene (PP) composites will be studied with varying the concentrations of PP/ABS composite with HGM. Also further the design analysis will be studied by conducting the simulation under the same criteria and comparing the results at the end. This is done to introduce a light weight material with

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Juan, Pablo Valencia-Villegas, María González Mesa Ana, and Felipe Arbeláez-Pérez Oscar. "Properties of modified concrete with crumb rubber: Effect of the incorporation of hollow glass microspheres." Revista Facultad de Ingeniería, Universidad de Antioquia, no. 98 (April 28, 2020): 59–68. https://doi.org/10.17533/udea.redin.20200473.

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In this study, the effect of incorporating hollow glass microspheres (HGM) on the  mechanical properties of modified concrete with CR (crumb rubber) was evaluated. Different concrete samples replacing  15% of fine aggregates (total weight of CR + HGM = 15%) were prepared. It was found that the increase in the microsphere content was directly proportional to the slump, compressive strength, and the modulus of elasticity. The increase in the microsphere content was inversely proportional to density. Additionally, we found that in the modified concrete, the width, height and the number

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Wang, Ying Chun, Wen Hai Huang, Ai Hua Yao, and De Ping Wang. "The Influence of Sinterng Temperature on the Phase, Microstructure and Textual Properties of Hollow Hydroxyapatite Microspheres." Advanced Materials Research 239-242 (May 2011): 2274–79. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2274.

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A simple method to prepare hollow hydroxyapatite (HAP) microspheres with mespores on the surfaces is performed using a precipitation method assisted with Li2O-CaO-B2O3(LCB) glass fabrication process. This research is concerned with the effect of sintering temperature on the microstructure evolution, phase purity, surface morphology, specific surface area, and porosity after sintering process. The microspheres were sintered in air atmosphere at temperatures ranging from 500 to 900 °C. The starting hollow HAP microspheres and the sintered specimens were characterized by scanning electron microsc

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Ihara, Taiki, Hajime Wagata, Toshihiro Kogure, Ken-ichi Katsumata, Kiyoshi Okada, and Nobuhiro Matsushita. "Template-free solvothermal preparation of ZnO hollow microspheres covered with c planes." RSC Adv. 4, no. 48 (2014): 25148–54. http://dx.doi.org/10.1039/c4ra02877e.

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ZnO hollow microspheres exhibiting only c planes on the surface were successfully synthesized by a solvothermal method even without using a template. The ZnO hollow microspheres are formed by preferential dissolution of centers of ZnO solid microspheres which have low crystallinity.

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Semenov, Vyacheslav, Tamara Rozovskaya, and Dmitriy V. Oreshkin. "Properties of the Dry Masonry Mixtures with Hollow Ceramics Microspheres." Advanced Materials Research 860-863 (December 2013): 1244–47. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1244.

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The article is devoted to the development of dry masonry mixtures on the basis of hollow ceramics microspheres. It considers the effect of the concentration of hollow ceramics microspheres of different size fractions in the masonry mortar on physical, mechanical and technological properties of the mortar. The optimum compositions of lightweight mortars with hollow microspheres were developed and their main properties were studied as well.

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Yang, Li, Wie Sheng Guan, Bo Bai, and Yun Xiang. "Developing a New Method for the Formation of NiO Hollow Microspheres Using Yeasts as Bio-Templates." Advanced Materials Research 79-82 (August 2009): 1867–70. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1867.

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A novel route for synthesis of biomorphic nickel oxide （NiO） hollow microspheres, using yeasts as bio-templates, has been successfully developed. In the typical process，yeast cells were first coated with nickel hydroxide and then calcinated to obtain nickel oxide hollow microspheres. As-prepared products were characterized by DTA, SEM, XRD and FTIR. A possible formation mechanism of NiO hollow microspheres was proposed in brief.

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Cao, Feng, Dong Xu Li, and Zheng Ying Wu. "In Situ Synthesis of the Hollow Silica Microspheres with Porous Surface by Using Chemical Modified Pollen Grains as Biotemplate." Key Engineering Materials 645-646 (May 2015): 1273–78. http://dx.doi.org/10.4028/www.scientific.net/kem.645-646.1273.

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Hollow silica microspheres with porous surface were synthesized by using the pollen grains as biotemplate through an in-situ synthesis process, in which the pollen grains were surface modified by ammonium oleate. Scanning electron microscopy, Fourier transform infrared spectroscopy and nitrogen adsorption-desorption porosimetry analyzer were applied to investigate the as-prepared microspheres. Bovine serum albumin was used as the model drug to estimate the adsorption property. And the effect of the different amount of tetraethoxysilane during the synthesis process were discussed in this paper.

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Wang, Jin Long, Yan Zi Gou, Wu Rong Ren, Ke Jian, and Hao Wang. "Boron Carbide Hollow Microspheres Prepared by Polymer Derived Method." Key Engineering Materials 726 (January 2017): 159–63. http://dx.doi.org/10.4028/www.scientific.net/kem.726.159.

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Polycarborane, as a kind of boron carbide polymeric precursor, was synthesized by hydroboration reaction with styrene, divinylbenzene as the carbon resource and borane as the boron resource in this work. The polymer precursor which had good solubility and film-forming ability was soluble in most organic solvents. Furthermore, polycarborane was used to fabricate hollow polymer microspheres by emulsion technique. The compact boron carbide ceramic hollow microspheres were prepared by ceramization of the polymer microspheres. Ceramic microspheres with diameters ranging from 1 to 1.5 mm and shell t

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Wu, Yanfang, Junjie Lan, Mingxuan Wu, et al. "Processing, Microstructure, and Performance of Robocast Clay-Based Ceramics Incorporating Hollow Alumina Microspheres." Materials 17, no. 7 (2024): 1603. http://dx.doi.org/10.3390/ma17071603.

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The restoration of ancient ceramics has attracted widespread attention as it can reveal the overall appearance of ancient ceramics as well as the original information and artistic charm of cultural relics. However, traditional manual restoration is constrained due to its time-consuming nature and susceptibility to damaging ancient ceramics. Herein, a three-dimensional (3D) printing technique was employed to accurately restore Chinese Yuan Dynasty Longquan celadon using hollow Al2O3 microsphere-modified 3D printing paste. The results show that the hollow Al2O3 microsphere content plays a vital

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ZHANG, DONGYANG, HAN ZHOU, JIN LIANG, and SHUJIANG DING. "SYNTHESIS OF SUB-MICROMETER CARBON SUPPORTED Fe3O4 HOLLOW SPHERES WITH ENHANCED LITHIUM STORAGE PROPERTIES." Journal of Molecular and Engineering Materials 01, no. 04 (2013): 1340018. http://dx.doi.org/10.1142/s2251237313400182.

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In this paper, we report an interesting approach for efficient synthesis of uniform sub-micrometer carbon supported Fe 3 O 4 hollow spheres. Fe 3 O 4 precursor was first coated on the surface of sulfonated polystyrene hollow microspheres. Then, the precursor and sulfonated polystyrene hollow microspheres were converted into Fe 3 O 4 and carbon hollow spheres when heated at 550°C in N 2 atmosphere. The obtained Fe 3 O 4 @ carbon hollow microspheres exhibit enhanced lithium storage properties compared with Fe 2 O 3 hollow spheres as anode materials, delivering a reversible capacity of 612 mA hg−

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Shao, Qing Hui, Teng Yuan, Zhuo Chen, Jian Qing Hu, Wei Ping Tu, and Feng Wang. "Hollow Polymer Nano-Latex Microspheres Prepared by In Situ Polymerization with the Method of Encapsulation Non-Solvent." Materials Science Forum 809-810 (December 2014): 222–30. http://dx.doi.org/10.4028/www.scientific.net/msf.809-810.222.

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In this paper, the hollow polymer nanolatex microspheres with uniform size and good monodisperse made by in-situ polymerization with the method of encapsulation non-solvent,and the effect of crosslinking monomer (DVB) dosage in the shell on the morphology and opacity of the hollow polymer nanolatex microspheres were investigated by the characterization methods of particle size analysismeter, viscosity meter, acid value analysis, SEM, TEM and UV-Vis spectrophotometry. The results show that under the other conditions and MAA dosage of the shell unchanged, when the crosslinking monomer dosage of

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