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Synthesis of core-shell nanoparticles in microreactors

微反应器中核壳纳米粒子的合成

基本信息

批准号：
1945714
负责人：
金额：
--
依托单位：
University of Cambridge
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-1945714
关键词：
Synthesis core shell nanoparticles microreactors

项目摘要

Nanoparticles (NPs) have attracted the scientific interest during the last decades, currently being used and explored for a large number of application. Lying at the edge between bulk solids and molecular structures, nanoparticles exhibit exceptional properties due to their very small size (1-100 nm) such as extremely high surface energy, high area to volume ratio and quantum confinement effects. Such unique chemical and physical properties makes them interesting in a wide range of fields, including catalysis, biomedical imaging and light emitting technologies.Despite their potential, their deployment in large scale application require the overcome of a number of hurdles. Their high surface energy means that they are particularly reactive and sensitive to agglomeration. Furthermore, most nanoparticle syntheses are currently carried out using batch procedures on small scales and the scale up of the reactions is often challenging, limiting potential industrial applications.In order to tackle those issues, this project aims at developing new manufacturing technologies for the synthesis of core/shell nanoparticle, where the outer shell acts as a barrier protecting the inner core composed of the desired material. For this, flow synthesis in microreactor will be explored to maximise their high heat and mass transfer coefficients as well as laminar flow regime, thereby opening up the way to a large scale industrial production.

纳米粒子（NPs）在过去的几十年中吸引了科学兴趣，目前正在被用于大量的应用和探索。纳米粒子位于块状固体和分子结构之间的边缘，由于其非常小的尺寸（1-100 nm）而表现出优异的性能，例如极高的表面能、高面积体积比和量子限制效应。这种独特的化学和物理性质使它们在催化、生物医学成像和发光技术等广泛领域引起人们的兴趣。尽管它们具有潜力，但它们的大规模应用需要克服许多障碍。它们的高表面能意味着它们特别具有反应性并且对附聚特别敏感。此外，目前大多数纳米粒子的合成都是采用小规模的批处理工艺，反应规模的扩大往往具有挑战性，限制了潜在的工业应用。为了解决这些问题，本项目旨在开发新的核/壳纳米粒子的合成制造技术，其中外壳作为屏障保护由所需材料组成的内核。为此，将探索微反应器中的流动合成，以最大限度地提高其高传热和传质系数以及层流状态，从而开辟了大规模工业生产的道路。