Spherical Silica(球形二氧化硅)研究综述
Spherical Silica 球形二氧化硅 - The multilayer bamboo composite (FAS-RGO@SiO2BT) was prepared by using the self-assembly process of nanospherical silica on graphene followed by hydrophobic modification. [1] 2 nm-thick COFs layer on the inner surface of the mesopores of spherical silica (5 μm, 120 Å). [2] In this study, a photonic crystal structure based on spherical silica was formed to provide structural color using an electro-hydrodynamic (EHD) equipment, a printed electronic system attracting considerable interest. [3] Spherical silica is a fundamentally important material with uses across a wide and diverse range of areas. [4] Combined extinction and scattering method has been proved to be reliable in measuring particle size and concentration for spherical silica (SS) particles. [5] In contrast, both thermal conductivity and CTE increase as the filler particle size increases; the values of these two properties of crystal silica are about twice those of fused silica; the thermal conductivity of polygonal silica is larger than that of spherical silica. [6] In this regard, to first compare the role of pore-orientation in mesoporous silica support, we synthesized: (i) radial pore containing nano-spherical silica (RPNS) and (ii) axial pore containing cylindrical silica particles (of SBA-15). [7] A single phase is formed due to X-ray blocking as a thick reaction layer is formed on the spherical silica by uniformly reacting with silica by the addition of manganese. [8] Magnetization capability and curcumin release was assessed for different structured silica such as spherical silica (Q-10), Si-MCM-41, Si-SBA-16, mesocellular foam (MSU-Foam), Si-KIT-6, ULPFDU-12, and silicalite. [9] This assumption was tested using results obtained by cumulants analysis, CONTIN and Non-Negative Least Squares fitting (NNLS) of distributions, and frequency analysis on near-spherical silica and polystyrene latex particles obtained in one laboratory and results on near-spherical silica obtained in other laboratories. [10] 19) can promote the growth along a-axis, resulting in spherical silicalite-1 crystals (i. [11] The immobilization of the Mn12–stearate was demonstrated with the use of FTO glasses and spherical silica as substrates. [12] The aim of this research work is to determine the mechanical, morphological and thermal properties of spherical silica (silica-A), amorphous silica (silica-B) and Roselle fiber (RF) reinforced polyurethane (PU) hybrid nanocomposites. [13] The Mn12 single-molecule magnets (SMMs) could be attached to the surface of spherical silica for the first time with a high probability. [14] Hollow spheres were prepared by the attachment of ferric and ferrous ions onto the surface of the spherical silica (SiO2) particles synthesized by the Stöber process. [15]多层竹复合材料(FAS-RGO@SiO2BT)是通过使用石墨烯上的纳米球形二氧化硅自组装工艺,然后进行疏水改性制备的。 [1] 球形二氧化硅(5 μm,120 Å)中孔内表面的 2 nm 厚 COF 层。 [2] 在这项研究中,形成了一种基于球形二氧化硅的光子晶体结构,以使用电流体动力学 (EHD) 设备提供结构颜色,这是一种引起相当大兴趣的印刷电子系统。 [3] 球形二氧化硅是一种极为重要的材料,用途广泛且广泛。 [4] 消光和散射相结合的方法已被证明在测量球形二氧化硅 (SS) 颗粒的粒径和浓度方面是可靠的。 [5] 相反,导热率和 CTE 都随着填料粒径的增加而增加;结晶二氧化硅的这两个性能值大约是熔融二氧化硅的两倍;多边形二氧化硅的导热系数比球形二氧化硅大。 [6] 在这方面,为了首先比较孔取向在介孔二氧化硅载体中的作用,我们合成了:(i)径向孔含有纳米球形二氧化硅(RPNS)和(ii)轴向孔含有圆柱形二氧化硅颗粒(SBA-15) . [7] 由于通过添加锰与二氧化硅均匀反应,在球形二氧化硅上形成厚的反应层,由于X射线阻挡而形成单相。 [8] 评估了不同结构二氧化硅的磁化能力和姜黄素释放,例如球形二氧化硅 (Q-10)、Si-MCM-41、Si-SBA-16、介孔泡沫 (MSU-Foam)、Si-KIT-6、ULPFDU-12 , 和硅沸石。 [9] 使用通过累积量分析、CONTIN 和非负最小二乘拟合 (NNLS) 分布获得的结果以及对在一个实验室获得的近球形二氧化硅和聚苯乙烯乳胶颗粒的频率分析以及在其他实验室。 [10] 19)可以促进沿a轴的生长,产生球形silialite-1晶体(i. [11] 使用 FTO 玻璃和球形二氧化硅作为底物证明了 Mn12-硬脂酸盐的固定化。 [12] 本研究工作的目的是确定球形二氧化硅 (silica-A)、无定形二氧化硅 (silica-B) 和洛神花纤维 (RF) 增强聚氨酯 (PU) 杂化纳米复合材料的机械、形态和热性能。 [13] Mn12单分子磁体(SMM)首次以高概率附着在球形二氧化硅表面。 [14] 通过将铁离子和亚铁离子附着在Stöber法合成的球形二氧化硅(SiO<sub>2</sub>)颗粒表面制备空心球。 [15]
Monodispersed Spherical Silica
The conventional sol-gel method used to synthesize monodispersed spherical silica nanoparticles produces particles with irregular shapes and low monodispersity. [1] Monodispersed spherical silica nanoparticles with a cubic mesostructure were synthesized in a fast and innovative way using triethanolamine (TEA) and the triblock copolymer Pluronic® F127 as particle growth inhibitors to control the particle size in a range from 420 to 62 nm. [2] Monodispersed spherical silica particles with a diameter of $5. [3] The melt method is used for synthesizing monodispersed spherical silica nanoparticles Gdx-SiyOz:Eu3+. [4]用于合成单分散球形二氧化硅纳米粒子的常规溶胶-凝胶方法产生的颗粒形状不规则且单分散性低。 [1] 使用三乙醇胺 (TEA) 和三嵌段共聚物 Pluronic® F127 作为颗粒生长抑制剂,将粒径控制在 420 至 62 nm 范围内,以快速和创新的方式合成了具有立方细观结构的单分散球形二氧化硅纳米颗粒。 [2] 直径为 5 美元的单分散球形二氧化硅颗粒。 [3] 熔融法用于合成单分散球形二氧化硅纳米粒子Gdx-SiyOz:Eu3+。 [4]
Nm Spherical Silica Nm 球形二氧化硅
ABSTRACT In this work, a three-component composite elastomer consisting of poly(di(ethylene glycol)methyl ether methacrylate) (PMEO2MA), 110 nm spherical silica particles and multilayer graphene (MLG) is fabricated and its various functions brought about by the characteristic morphology formed by silica particles and MLG are clarified. [1] Epoxy/silica thermosets with tunable matrix (vitrimers) were prepared by thermal curing of diglycidyl ether of bisphenol A (DGEBA) in the presence of a hardener—4-methylhexahydrophthalic anhydride (MHHPA), a transesterification catalyst—zinc acetylacetonate (ZAA), and 10–15 nm spherical silica nanoparticles. [2] Introducing 10 nm and 110 nm spherical silica particles to 180 nm fumed silica solutions resulted in increasing the critical thickening shear rate along with reducing the magnitude of thickening. [3] We coated 256 nm spherical silica nanoparticles with different hydrophobicity and evaluated their performance for the hydrate dispersion at atmospheric and high pressure. [4]摘要 在这项工作中,制备了一种由聚(二(乙二醇)甲基醚甲基丙烯酸酯)(PMEO2MA)、110 nm 球形二氧化硅颗粒和多层石墨烯(MLG)组成的三组分复合弹性体,并以其特性带来的各种功能。澄清了二氧化硅颗粒和MLG形成的形态。 [1] 通过在硬化剂 - 4-甲基六氢邻苯二甲酸酐 (MHHPA)、酯交换催化剂 - 乙酰丙酮锌 (ZAA) 和10-15 nm 球形二氧化硅纳米粒子。 [2] 将 10 nm 和 110 nm 球形二氧化硅颗粒引入 180 nm 气相二氧化硅溶液导致临界增稠剪切速率增加,同时增稠幅度降低。 [3] 我们涂覆了具有不同疏水性的 256 nm 球形二氧化硅纳米粒子,并评估了它们在大气压和高压下水合物分散的性能。 [4]
Amorphou Spherical Silica
As a model system we have chosen an unentangled poly(ethylene glycol) (PEG) matrix containing amorphous spherical silica nanoparticles with different diameters and at different concentrations. [1] The toxicity of the carbon-incorporated silica from rice husks was 2-fold lower compared to commercial crystalline and amorphous spherical silica. [2] Characterisation studies of coloured silica nanoparticles showed amorphous spherical silica nanoparticle with a mean particle size of approximately 200 nm. [3]作为模型系统,我们选择了一种未缠结的聚(乙二醇)(PEG)基质,其中含有不同直径和不同浓度的无定形球形二氧化硅纳米粒子。 [1] 与商业结晶和无定形球形二氧化硅相比,来自稻壳的碳结合二氧化硅的毒性低 2 倍。 [2] 有色二氧化硅纳米粒子的表征研究表明,无定形球形二氧化硅纳米粒子的平均粒径约为 200 nm。 [3]
Monodisperse Spherical Silica
—We have studied water vapor sorption properties of close-packed opal structures made up of monodisperse spherical silica particles 150 to 350 nm in diameter. [1] In this work, UiO-66 capable of separating xylenes was supported effectively on the surface of the monodisperse spherical silica microspheres by one-pot method. [2]— 我们研究了由直径为 150 至 350 nm 的单分散球形二氧化硅颗粒组成的密排蛋白石结构的水蒸气吸附性能。 [1] 在这项工作中,能够分离二甲苯的UiO-66通过一锅法有效地负载在单分散球形二氧化硅微球的表面上。 [2]
Hollow Spherical Silica
Herein, using a miniaturized multi-run spiral-shaped microreactor, we develop a flow synthesis strategy to continuously produce hollow spherical silica (HSS) with hierarchical sponge-like pore sizes ranging from several nanometers to over one hundred nanometers. [1] To obtain the high grinding efficiency and good self-dressing performance for the metal bond diamond grinding tools, hollow spherical silica particles with different contents were introduced into Fe-based diamond composites as pore former. [2]在此,我们使用小型化的多运行螺旋形微反应器,开发了一种流动合成策略,以连续生产具有从几纳米到超过一百纳米的分级海绵状孔径的空心球形二氧化硅 (HSS)。 [1] 为了获得金属结合剂金刚石磨具的高磨削效率和良好的自修整性能,将不同含量的空心球形二氧化硅颗粒引入铁基金刚石复合材料中作为成孔剂。 [2]
spherical silica particle 球形二氧化硅颗粒
Platelet SBA-15, irregular KIT-6, and spherical silica particle (SSP) were selected as a template to generate three different kinds of shapes of the mesoporous Fe-N/C catalyst. [1] We compared the shape of the supraparticles made of seven different sizes of spherical silica particles, namely from 20 to 1000 nm, and of the mixtures of small and large colloidal particles at different mixing ratios. [2] ABSTRACT In this work, a three-component composite elastomer consisting of poly(di(ethylene glycol)methyl ether methacrylate) (PMEO2MA), 110 nm spherical silica particles and multilayer graphene (MLG) is fabricated and its various functions brought about by the characteristic morphology formed by silica particles and MLG are clarified. [3] After a brief overview of the main polymer grafting techniques and the benefits of using NMP, the surface modification of silica-based materials (oxidized silicon wafers or spherical silica particles), phyllosilicates, metallic substrates and metal oxide nanoparticles are discussed. [4] Spherical silica particles (SiO2 NPs) are used as hard cores to assemble cetyltrimethylammonium bromide (CTAB)/silica shells, which are later removed by selective etching to generate a hollow structure. [5] In this work, the classic Stöber method was used to prepare spherical silica particles with different particle sizes by adding different amounts of electrolyte (potassium chloride), giving rise to size distribution ranging from 300 nm to 2. [6] Spherical silica particles are typically made via Stöber processes. [7] An approach has been developed that allows the synthesis of submicron spherical silica particles with a controlled micro-mesoporous structure possessing a large specific surface area (up to 1300 m2 g−1). [8] Conventional Stober method, in which ammonia is used to catalyze the hydrolysis/condensation of tetraethyl orthosilicate (TEOS), has been proven to be very powerful for preparation of different sized, spherical silica particles. [9] Hemispherical caps of in-plane exchange biased IrMn/CoFe layer systems have been fabricated on top of regularly arranged spherical silica particles by magnetron sputtering, creating magnetic Janus particles. [10] Introducing 10 nm and 110 nm spherical silica particles to 180 nm fumed silica solutions resulted in increasing the critical thickening shear rate along with reducing the magnitude of thickening. [11] The measured cohesive forces of the meteorite particles are tens of times smaller than those of an ideally spherical silica particle and correspond to the submicron-scale effective (or equivalent) curvature radius of the particle surface. [12] Two colloidal suspensions of paucidisperse, spherical silica particles with different surface chemistries leading to extreme limits of surface contact friction are studied to identify experimental differences in shear rheology and microstructure and quantitatively test theory and simulation models. [13] Spherical silica particles are traditionally made via Stöber and modified-Stöber processes, which commonly use environmental toxins as reagents. [14] Monodisperse molybdenum disulfide nanoparticles were synthesized in mesopores of spherical silica particles (mSiO2) served as a template. [15] In this work, by using a model colloidal system of hard spherical silica particles (average diameter of 415 nm) with varying particle volume fractions 0. [16] The rheology of spherical silica particle suspensions with different particle volume fractions and particle size distribution under different shear rates has been determined experimentally. [17] We confirmed the effectiveness of the capillary penetration method by measuring the HSPs of the surface of spherical silica particles with a diameter of 1 µm. [18] Spherical silica particles have been synthesised from sodium silicate (Na 2 SiO 3 ) via flame-assisted spray-drying. [19] We compare the electrostatically driven capture of flowing rod-shaped and spherical silica particles from dilute solutions onto a flow chamber wall that carries the opposite electrostatic charge from the particles. [20] In this paper we demonstrate the use of small spherical silica particles (∼100–220 nm) as an additive to a clay-latex coating formulation is able to provide further improvements to the barrier properties, when compared to the equivalent silica-free coatings. [21] The R2T2 is validated using measurements for a mm-scale spherical sample of densely-packed spherical silica particles. [22] In this study, monodisperse-porous, spherical silica particles in the micron-size range, with bimodal pore diameter distribution were selected as a new support for the synthesis of a molecularly imprinted boronate affinity sorbent, using a cis-diol functionalized agent as the template. [23] —We have studied water vapor sorption properties of close-packed opal structures made up of monodisperse spherical silica particles 150 to 350 nm in diameter. [24] Monodispersed spherical silica particles with a diameter of $5. [25] Novel semi-conductively encapsulated microspheres were fabricated by coating poly(diphenylamine) (PDPA) onto spherical silica particles via chemical oxidative polymerization. [26] We have established that under such conditions, when the formation of a supramolecular structure from spherical silica particles 220–320 nm in diameter is limited by the rate of introduction of particles into the sedimentation zone (sedimentation deposition in a constant cross section tube), the particle deposition rate, as well as the formation rate of the supramolecular structure, is strictly linear. [27] In this study, spherical silica particles with a diameter of around 120 nm were fabricated from rice husk ash (RHA), and were used to support two bridged zirconcene complexes ((I) Me2Si(Ind)2ZrCl2 and (II) C2H4(Ind)2ZrCl2) for catalyzing propylene polymerization to produce polypropylene (PP) in a temperature range of 40–70 °C and in a solution methylaluminoxane (MAO) range of 0. [28] To obtain the high grinding efficiency and good self-dressing performance for the metal bond diamond grinding tools, hollow spherical silica particles with different contents were introduced into Fe-based diamond composites as pore former. [29]选择血小板 SBA-15、不规则 KIT-6 和球形二氧化硅颗粒 (SSP) 作为模板,生成了三种不同形状的介孔 Fe-N/C 催化剂。 [1] 我们比较了由七种不同尺寸的球形二氧化硅颗粒(即从 20 到 1000 nm)制成的超颗粒的形状,以及不同混合比的大小胶体颗粒的混合物的形状。 [2] 摘要 在这项工作中,制备了一种由聚(二(乙二醇)甲基醚甲基丙烯酸酯)(PMEO2MA)、110 nm 球形二氧化硅颗粒和多层石墨烯(MLG)组成的三组分复合弹性体,并以其特性带来的各种功能。澄清了二氧化硅颗粒和MLG形成的形态。 [3] 在简要概述了主要的聚合物接枝技术和使用 NMP 的好处之后,讨论了二氧化硅基材料(氧化硅晶片或球形二氧化硅颗粒)、页硅酸盐、金属基材和金属氧化物纳米粒子的表面改性。 [4] 球形二氧化硅颗粒 (SiO2 NPs) 用作硬核来组装十六烷基三甲基溴化铵 (CTAB)/二氧化硅壳,随后通过选择性蚀刻将其去除以产生中空结构。 [5] 在这项工作中,采用经典的 Stöber 方法,通过添加不同量的电解质,制备不同粒径的球形二氧化硅颗粒。 (氯化钾),产生从 300 nm 到 2 的尺寸分布。 [6] 球形二氧化硅颗粒通常通过 Stöber 工艺制成。 [7] 已经开发出一种方法,该方法允许合成具有受控微介孔结构的亚微米球形二氧化硅颗粒,该结构具有较大的比表面积(高达 1300 m2 g-1)。 [8] 传统的 Stober 方法,其中氨用于催化原硅酸四乙酯 (TEOS) 的水解/缩合,已被证明对于制备不同尺寸的球形二氧化硅颗粒非常有效。 [9] 已通过磁控溅射在规则排列的球形二氧化硅颗粒顶部制造了平面内交换偏置 IrMn/CoFe 层系统的半球形帽,从而产生磁性 Janus 颗粒。 [10] 将 10 nm 和 110 nm 球形二氧化硅颗粒引入 180 nm 气相二氧化硅溶液导致临界增稠剪切速率增加,同时增稠幅度降低。 [11] 测得的陨石颗粒内聚力比理想球形二氧化硅颗粒小几十倍,并对应于颗粒表面的亚微米级有效(或等效)曲率半径。 [12] 研究了两种具有不同表面化学性质的少分散球形二氧化硅颗粒的胶体悬浮液,从而导致表面接触摩擦的极限极限,以确定剪切流变学和微观结构的实验差异,并定量测试理论和模拟模型。 [13] 球形二氧化硅颗粒传统上是通过 Stöber 和改进的 Stöber 工艺制成的,这些工艺通常使用环境毒素作为试剂。 [14] 以球形二氧化硅颗粒(mSiO2)为模板,在介孔中合成了单分散二硫化钼纳米颗粒。 [15] 在这项工作中,通过使用具有不同颗粒体积分数 0 的硬球形二氧化硅颗粒(平均直径为 415 nm)的模型胶体系统。 [16] 实验确定了不同颗粒体积分数和粒度分布的球形二氧化硅颗粒悬浮液在不同剪切速率下的流变学特性。 [17] 我们通过测量直径为 1 µm 的球形二氧化硅颗粒表面的 HSP,证实了毛细管穿透法的有效性。 [18] 已经由硅酸钠(Na 2 SiO 3 )通过火焰辅助喷雾干燥合成了球形二氧化硅颗粒。 [19] 我们比较了将流动的棒状和球形二氧化硅颗粒从稀释溶液中静电驱动捕获到流动室壁上,流动室壁上带有来自颗粒的相反静电荷。 [20] 在本文中,我们展示了使用小球形二氧化硅颗粒(~100–220 nm)作为粘土-乳胶涂料配方的添加剂,与同等的无二氧化硅涂料相比,能够进一步改善阻隔性能。 [21] R2T2 使用测量密集球形二氧化硅颗粒的毫米级球形样品进行验证。 [22] 在本研究中,以顺式二醇功能化试剂为模板,选择了具有双峰孔径分布的微米级单分散多孔球形二氧化硅颗粒作为合成分子印迹硼酸盐亲和吸附剂的新载体。 . [23] — 我们研究了由直径为 150 至 350 nm 的单分散球形二氧化硅颗粒组成的密排蛋白石结构的水蒸气吸附性能。 [24] 直径为 5 美元的单分散球形二氧化硅颗粒。 [25] 通过化学氧化聚合将聚(二苯胺)(PDPA)涂覆在球形二氧化硅颗粒上,制备了新型半导体封装微球。 [26] 我们已经确定,在这种条件下,当从直径为 220-320 nm 的球形二氧化硅颗粒形成超分子结构受到颗粒进入沉降区的速度(在恒定截面管中的沉降沉积)的限制时,粒子沉积速率以及超分子结构的形成速率是严格线性的。 [27] 在这项研究中,直径约为 120 nm 的球形二氧化硅颗粒由稻壳灰 (RHA) 制成,并用于支撑两种桥接锆烯配合物 ((I) Me2Si(Ind)2ZrCl2 和 (II) C2H4(Ind) 2ZrCl2) 用于在 40–70 °C 的温度范围和 0 的溶液甲基铝氧烷 (MAO) 范围内催化丙烯聚合生产聚丙烯 (PP)。 [28] 为了获得金属结合剂金刚石磨具的高磨削效率和良好的自修整性能,将不同含量的空心球形二氧化硅颗粒引入铁基金刚石复合材料中作为成孔剂。 [29]
spherical silica nanoparticle 球形二氧化硅纳米粒子
The conventional sol-gel method used to synthesize monodispersed spherical silica nanoparticles produces particles with irregular shapes and low monodispersity. [1] The study of magnetic relaxations in Mn12-stearate single-molecule magnets deposited on the surface of spherical silica nanoparticles was performed. [2] Epoxy/silica thermosets with tunable matrix (vitrimers) were prepared by thermal curing of diglycidyl ether of bisphenol A (DGEBA) in the presence of a hardener—4-methylhexahydrophthalic anhydride (MHHPA), a transesterification catalyst—zinc acetylacetonate (ZAA), and 10–15 nm spherical silica nanoparticles. [3] Spherical silica nanoparticles are first prepared by the surfactant-templated sol-gel approach, then coated with choline chloride-ethylene glycol deep eutectic solvent (DES) by post-impregnation. [4] As a model system we have chosen an unentangled poly(ethylene glycol) (PEG) matrix containing amorphous spherical silica nanoparticles with different diameters and at different concentrations. [5] Spherical silica nanoparticles were obtained by Stöber method and further etched to obtain mesoporous particles with sizes ranging from 350 to 400 nm. [6] Characterisation of the synthesised silica nanoparticles using Scanning Electron Microscopy (SEM) confirmed the formation of almost spherical silica nanoparticles with diameters averaging crystal size range of 16 to 46 nm at room temperature. [7] In this study, structural colors were produced by spherical silica nanoparticles. [8] Thus, we successfully synthesized spherical silica nanoparticles with tunable mesopores ranging from 3 to 40 nm. [9] The coating is a subwavelength-microstructured thin layer on the glass surface made of a monolayer of hemispherical silica nanoparticles obtained by hydrothermal fusion of spherical particles to the glass substrate. [10] 7% compared to that of spherical silica nanoparticles. [11] Monodispersed spherical silica nanoparticles with a cubic mesostructure were synthesized in a fast and innovative way using triethanolamine (TEA) and the triblock copolymer Pluronic® F127 as particle growth inhibitors to control the particle size in a range from 420 to 62 nm. [12] Imidazolium-based poly(ionic liquid) brushes were attached to spherical silica nanoparticles bearing various functionalities by using a surface-initiated atom transfer radical polymerization ("grafting from" technique). [13] Multi-stimulus responsive weak polyelectrolyte brushes were grafted by surface-initiated atom transfer radical polymerization from spherical silica nanoparticles across a wide range of grafting densities approaching the limit of close packing of grafting sites: a regime not previously explored in the brush swelling literature. [14] The melt method is used for synthesizing monodispersed spherical silica nanoparticles Gdx-SiyOz:Eu3+. [15] Characterisation studies of coloured silica nanoparticles showed amorphous spherical silica nanoparticle with a mean particle size of approximately 200 nm. [16] Data Set I includes experiments conducted with mineral oil and distilled water as test fluids, and spherical silica nanoparticles of 20 nm mean diameter at concentrations of 0. [17] We investigate the crystallization-induced ordering of C18 grafted 14 nm diameter spherical silica nanoparticles (NPs) in a short chain (Mw = 4 kDa, ĐM ≈ 2. [18] For this, spherical silica nanoparticles (~ 300 nm) were developed by a biomimetic approach and their coating with ceria was performed through a precipitation method. [19] We coated 256 nm spherical silica nanoparticles with different hydrophobicity and evaluated their performance for the hydrate dispersion at atmospheric and high pressure. [20] Objective This study aimed to examine the role of spherical silica nanoparticles (SiNPs) on human bronchial epithelial (BEAS-2B) cells through inflammation. [21] The high content of amorphous silica in the bituminous coal from Xuanwei of Yunnan is mainly present as irregular and spherical silica nanoparticles (SiNPs). [22] In this study, solid spherical silica nanoparticles and hollow spherical silica nanoparticles around 45 nm in diameter were synthesized, both possessing tunable positive ζ potentials in aqueous colloidal suspension, to investigate the relationship between time-dependent ζ potential changes and their morphologies. [23]用于合成单分散球形二氧化硅纳米粒子的常规溶胶-凝胶方法产生的颗粒形状不规则且单分散性低。 [1] 进行了沉积在球形二氧化硅纳米粒子表面的Mn12-硬脂酸单分子磁体的磁弛豫研究。 [2] 通过在硬化剂 - 4-甲基六氢邻苯二甲酸酐 (MHHPA)、酯交换催化剂 - 乙酰丙酮锌 (ZAA) 和10-15 nm 球形二氧化硅纳米粒子。 [3] 首先通过表面活性剂模板溶胶-凝胶方法制备球形二氧化硅纳米粒子,然后通过后浸渍用氯化胆碱-乙二醇深共熔溶剂(DES)包覆。 [4] 作为模型系统,我们选择了一种未缠结的聚(乙二醇)(PEG)基质,其中含有不同直径和不同浓度的无定形球形二氧化硅纳米粒子。 [5] 通过 Stöber 法获得球形二氧化硅纳米颗粒,并进一步蚀刻以获得尺寸范围为 350 至 400 nm 的介孔颗粒。 [6] 使用扫描电子显微镜 (SEM) 对合成的二氧化硅纳米粒子的表征证实了在室温下形成了直径平均晶体尺寸范围为 16 至 46 nm 的几乎球形的二氧化硅纳米粒子。 [7] 在这项研究中,结构颜色是由球形二氧化硅纳米粒子产生的。 [8] 因此,我们成功地合成了具有 3 到 40 nm 可调中孔的球形二氧化硅纳米粒子。 [9] 该涂层是玻璃表面上的亚波长微结构薄层,由单层半球形二氧化硅纳米颗粒通过球形颗粒水热融合到玻璃基材上而获得。 [10] 与球形二氧化硅纳米粒子相比为 7%。 [11] 使用三乙醇胺 (TEA) 和三嵌段共聚物 Pluronic® F127 作为颗粒生长抑制剂,将粒径控制在 420 至 62 nm 范围内,以快速和创新的方式合成了具有立方细观结构的单分散球形二氧化硅纳米颗粒。 [12] 通过使用表面引发的原子转移自由基聚合(“接枝自”技术),将基于咪唑的聚(离子液体)刷连接到具有各种功能的球形二氧化硅纳米粒子上。 [13] 多刺激响应性弱聚电解质刷通过表面引发的原子转移自由基聚合从球形二氧化硅纳米粒子接枝,接枝密度接近接枝位点紧密堆积的极限:以前在刷溶胀文献中没有探索过这种方案。 [14] 熔融法用于合成单分散球形二氧化硅纳米粒子Gdx-SiyOz:Eu3+。 [15] 有色二氧化硅纳米粒子的表征研究表明,无定形球形二氧化硅纳米粒子的平均粒径约为 200 nm。 [16] 数据集 I 包括使用矿物油和蒸馏水作为测试流体以及平均直径为 20nm 的球形二氧化硅纳米粒子在浓度为 0 时进行的实验。 [17] 我们研究了 C18 接枝的 14 nm 直径球形二氧化硅纳米粒子 (NPs) 在短链 (Mw = 4 kDa, ĐM ≈ 2) 中的结晶诱导排序。 [18] 为此,通过仿生方法开发了球形二氧化硅纳米颗粒(~ 300 nm),并通过沉淀法对其进行二氧化铈涂层。 [19] 我们涂覆了具有不同疏水性的 256 nm 球形二氧化硅纳米粒子,并评估了它们在大气压和高压下水合物分散的性能。 [20] 目的本研究旨在探讨球形二氧化硅纳米粒子(SiNPs)通过炎症对人支气管上皮(BEAS-2B)细胞的作用。 [21] 云南宣威烟煤中高含量的无定形二氧化硅主要以不规则球形二氧化硅纳米粒子(SiNPs)的形式存在。 [22] 本研究合成了直径约为 45 nm 的实心球形二氧化硅纳米粒子和空心球形二氧化硅纳米粒子,它们在水性胶体悬浮液中均具有可调的正 ζ 电位,以研究随时间变化的 ζ 电位变化与其形貌之间的关系。 [23]
spherical silica core 球形二氧化硅芯
Plasmonic nanoresonators consisting of a gold nanorod and a spherical silica core and gold shell, both coated with a gain layer, were optimized to maximize the stimulated emission in the near-field (NF-c-type) and the outcoupling into the far-field (FF-c-type) and to enter into the spasing operation region (NF-c*-type). [1] , pyrrole) in the process of constructing a spherical silica core-polypyrrole shell structure. [2] One type of 3D hybrid structure has been successfully fabricated by a chemical vapor deposition method, which consisted of carbon nanotubes (CNTs) shell and porous spherical silica core. [3] Mesoporous silica shells were formed on nonporous spherical silica cores during the sol–gel reaction to elucidate the mechanism for the generation of secondary particles that disturb the efficient growth of mesoporous shells on the cores. [4]等离子纳米谐振器由金纳米棒和球形二氧化硅核和金壳组成,均涂有增益层,经过优化,可最大限度地提高近场(NF-c 型)的受激发射和远场的外耦合(FF-c-type)并进入spasing操作区域(NF-c*-type)。 [1] ,吡咯)在构建球形二氧化硅核-聚吡咯壳结构的过程中。 [2] 一种类型的 3D 混合结构已通过化学气相沉积法成功制造,该结构由碳纳米管 (CNT) 壳和多孔球形二氧化硅核组成。 [3] 在溶胶-凝胶反应过程中,在无孔球形二氧化硅核上形成了介孔二氧化硅壳,以阐明干扰核上介孔壳有效生长的二级粒子的产生机制。 [4]
spherical silica np
In order to establish the proof-of-concept of this approach and assess the performance of both instruments, measurements were carried out on several samples of spherical silica NP populations ranging from 5 to 110 nm. [1] Micromodel flooding tests were designed with a central composite design (CCD) and carried out using BS and spherical silica NPs. [2]为了建立这种方法的概念验证并评估两种仪器的性能,对几个 5 到 110 nm 的球形二氧化硅 NP 群样品进行了测量。 [1] 微模型驱替试验采用中心复合设计 (CCD) 设计,并使用 BS 和球形二氧化硅 NPs 进行。 [2]
spherical silica gel
However, up to now, the stationary phases still face the problems of uneven dispersion of MOFs on traditional spherical silica gels and the poor separation performance. [1] The results show that molecularly imprinted polymers based on spherical silica gel had the potential to be a highly innovative and selective sorbent. [2]然而,迄今为止,固定相仍面临MOFs在传统球形硅胶上分散不均匀、分离性能差的问题。 [1] 结果表明,基于球形硅胶的分子印迹聚合物具有成为高度创新和选择性吸附剂的潜力。 [2]
spherical silica aerosol
The experimentally derived extinction coefficients of irregularly shaped silica aerosols were larger than those of spherical silica aerosol with an equivalent size in the range 0. [1] By connecting an aerosol generator and an electrical low-pressure impactor system, the white cell light extinction (WC-LE) system was tested to predict the low particle concentration of spherical silica aerosol and fly ash aerosol. [2]实验得出的不规则形状二氧化硅气溶胶的消光系数大于等效尺寸在0范围内的球形二氧化硅气溶胶。 [1] 通过连接气溶胶发生器和电动低压冲击器系统,测试了白细胞消光(WC-LE)系统,以预测球形二氧化硅气溶胶和飞灰气溶胶的低颗粒浓度。 [2]