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首页> 外文会议>International Conference on Advanced Materials, Mechanics and Structural Engineering >Fabrication and Microstructure of Ru Core Silica Shell Structure Particles by a Reverse Micelle and Sol-Gel Processing
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Fabrication and Microstructure of Ru Core Silica Shell Structure Particles by a Reverse Micelle and Sol-Gel Processing

机译：Ru芯硅胶结构颗粒通过反向胶束和溶胶 - 凝胶加工制备和微观结构

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The Ru core SiO_2 shell nano size particles have been synthesized within reverse micelle via metal alkoxide hydrolysis and condensation. The size of the particles and the thickness of the coating can be controlled by manipulating the relative rates of the hydrolysis and condensation reactions of tetraethoxysilane (TEOS) within the micro-emulsion. The average size of synthesized Ru core SiO_2 shell particles was about in the size range of 15-40 nm. The average size and distribution of the synthesized Ru core SiO_2 shell particles increased and narrow with R value increased. Otherwise, the average size and distribution of the synthesized Ru core SiO_2 shell particles decreased and narrow with H value increased. TEM studies of particle formation indicate that the reaction process in the complex system containing reverse micelles and TEOS is governed by a diffusion-controlled process. The effects of synthesis parameters, such as the molar ratio of water to TEOS, and the molar ratio of water to surfactant, are discussed.
机译：Ru核SiO_2壳纳米尺寸颗粒通过金属醇盐水解和冷凝在反转胶束内合成。通过操纵微乳液内的四乙氧基硅烷（TEOS）的水解和缩合反应的相对速率，可以控制颗粒的尺寸和涂层的厚度。合成的Ru核心SiO_2壳颗粒的平均尺寸约为15-40nm的尺寸范围。合成的Ru核心SiO_2壳颗粒的平均尺寸和分布增加和窄，R值增加。否则，合成的Ru核心SiO_2壳颗粒的平均尺寸和分布减少并且随着H值的增加而窄。粒子形成的TEM研究表明，含有反向胶束和TEOS的复杂系统中的反应过程受扩散控制过程的控制。讨论了合成参数的影响，例如水与TEOS的摩尔比以及水与表面活性剂的摩尔比。

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