Investigation of the synthesis of hexagonal meso/macroporous boron nitride (h-BN) with high thermal and chemical stability and its application in adsorption processes

高热稳定性和化学稳定性的六方介孔/大孔氮化硼（h-BN）的合成及其在吸附过程中的应用研究

• 批准号: 423708703
• 负责人: Professor Dr.-Ing. Dieter Bathen
• 金额: --
• 依托单位: Lehrstuhl für Thermische Verfahrenstechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/423708703?language=en
• 关键词: Investigation; synthesis; hexagonal; meso; macroporous

Boron-based materials have a high thermal, chemical and mechanical stability. Therefore, they are used as solid particles in a lot of technical processes. In contrast to this, porous particles like porous glasses, boron-containing zeolites, covalent organic frameworks or porous boron nitride are still in the state of research.The aim of this project is to synthesize a new boron-based adsorbent to understand the relationship between conditions of synthesis and specific material properties and to evaluate the new material in difficult adsorption processes.The first step is to synthesize meso-/macroporous boron nitride (h-BN) and develop a formulation of technical particles via extrusion, granulation und ionotropic gelatinization. The resulting boron nitrides and precursors will be systematically characterized in view of their specific structural and adsorptive properties. Due to their expected thermal and mechanical stability three difficult applications will be investigated experimentally; the adsorption of aldehydes and ketones (adsorber fire), moving/fluidized bed adsorption (attrition) and the adsorption of inhalation anaesthetics (weak interaction).To reach these goals two research groups with complementary expertise from the University of Leipzig (Technical Chemistry, Synthesis) and the University of Duisburg-Essen (Process Engineering, Adsorption) will work in close collaboration.

硼基材料具有很高的热稳定性、化学稳定性和机械稳定性。因此，它们在许多技术过程中用作固体颗粒。与此相反，多孔颗粒如多孔玻璃，含硼沸石，共价有机骨架或多孔氮化硼仍处于研究状态。本项目的目的是合成一种新的硼基吸附剂，以了解合成条件与特定材料性能之间的关系，并评估新材料在困难吸附过程中的作用。第一步是合成meso-/大孔氮化硼（h-BN），并通过挤出，造粒和离子凝胶化开发技术颗粒的配方。所得氮化硼和前体将在其特定的结构和吸附性能方面进行系统的表征。由于其预期的热稳定性和机械稳定性，三个困难的应用将进行实验研究;醛酮吸附（吸附器火灾），移动/流化床吸附（磨损）和吸入麻醉剂的吸附为了实现这些目标，两个研究小组利用莱比锡大学的互补专长，（技术化学，合成）和杜伊斯堡-埃森大学（过程工程，吸附）将密切合作。