Bicontinuous nanoporous solids via arrested spinodal decomposition of aqueous solutions of small inorganic solid solutes

通过小无机固溶质水溶液的停稳分解获得双连续纳米多孔固体

• 批准号: 501387034
• 负责人: Privatdozent Dr. Stephan E. Wolf
• 金额: --
• 依托单位: Lehrstuhl Glas und Keramik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/501387034?language=en
• 关键词: Bicontinuous; nanoporous; solids; via; arrested

Nanoporous materials with a uniform pore morphology and exquisite pore accessibility are functional materials of enormous importance in various application areas. These include primarily catalytic and sensory applications, energy storage, but also wastewater treatment. Spinodal demixing is a phase separation mechanism that provides direct access to these desired nanoscale morphologies if arrested in its early stages. However, only melts, alloys, and polymeric systems have been nanostructured via this pathway up to this day; it is a widely accepted tenet that aqueous solutions of inorganic compounds cannot be phase-separated via these pathways. This project aims to demonstrate that, under readily achievable chemical conditions—namely, in systems that spontaneously form coordination clusters—spinodal demixing of aqueous solutions is readily feasible, contrary to expectation. This project will develop this phase-separation route, long deemed inaccessible, into a synthesis methodology based on fast-flow-chemistry that is exploitable for the scalable synthesis of nanoporous inorganic solids.

纳米多孔材料具有均匀的孔隙形态和优良的孔隙可达性，是在各个应用领域具有重要意义的功能材料。这些主要包括催化和传感应用，能源储存，以及废水处理。Spinodal脱混是一种相分离机制，如果在早期阶段被阻止，则可以直接获得这些所需的纳米级形态。然而，到目前为止，只有熔体、合金和聚合物体系通过这种途径实现了纳米结构；无机化合物的水溶液不能通过这些途径相分离，这是一个被广泛接受的原则。该项目旨在证明，在容易实现的化学条件下，即，在自发形成配位团簇的系统中，水溶液的旋回脱混是很容易实现的，这与预期相反。该项目将把这种长期以来被认为无法实现的相分离路线发展成一种基于快速流动化学的合成方法，可用于可扩展合成纳米多孔无机固体。