Hybrid Porous Nanomaterials

杂化多孔纳米材料

• 批准号: 2881664
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2881664
• 关键词: Hybrid; Porous; Nanomaterials

Composite materials constructed from more than one type of building block can exhibit transformative, additive and emergent properties. Such properties depend not only on compositional makeup but also on internal structuring across multiple length-scales. This is particularly critical when working with nanoparticle (NP) building blocks, because their remarkable properties intrinsically depend on size, dimensionality and mutual arrangement. Therefore, the bottom-up assembly of nanoparticle building blocks is highly desirable for constructing new materials. Yet, materials constructed from more than one class of nanoparticle are rare, because we still lack general methods for interfacing and precisely arranging chemically distinct nanoscale components.Porous materials are critical for current and future technologies alike - from catalysis and gas separation to drug delivery or next-generation batteries. Reticular design has revolutionised the construction of porous materials with highly ordered internal crystal structures. Yet, it is virtually impossible to produce a porous material displaying more than one internal structure, or to integrate porosity with other types of building block. Recently, porous nanoparticles have emerged, which now allows us to consider a whole new class of materials that combine porous units with other nanoscale building blocks.This project will extend the concept of dynamic covalent nanoparticles - previously developed on pseudo-spherical metal cores - to porous metal-organic framework (MOF) NPs. Metal NPs and MOF NPs will be developed to have complementary physicochemical properties. On-NP physical-organic studies will establish structure-reactivity relationships for NP-bound reactions. The arising understanding will then be exploited to construct hybrid materials composed of nano-sized MOF and metal building blocks linked by specific dynamic molecular linkers. The resulting materials will be endowed with hierarchical structural control and adaptive behaviours that are characteristic of the underlying dynamic molecular links.

由一种以上类型的构建块构成的复合材料可以表现出变革性、附加性和涌现性。这些特性不仅取决于组成成分，还取决于多个长度尺度的内部结构。当使用纳米颗粒（NP）构建块时，这一点尤其重要，因为它们的显着特性本质上取决于尺寸，维度和相互排列。因此，纳米颗粒构建块的自下而上组装对于构建新材料是非常可取的。然而，由多种纳米颗粒构成的材料非常罕见，因为我们仍然缺乏通用的方法来连接和精确排列化学上不同的纳米级成分。多孔材料对当前和未来的技术都至关重要-从催化和气体分离到药物输送或下一代电池。网状结构设计彻底改变了具有高度有序内部晶体结构的多孔材料的构造。然而，实际上不可能生产显示多于一种内部结构的多孔材料，或者将多孔性与其他类型的构建块整合。最近，多孔纳米颗粒的出现，使我们能够考虑一种全新的材料，这种材料将联合收割机多孔单元与其他纳米级构建块相结合。本项目将把动态共价纳米颗粒的概念-以前在伪球形金属核上开发的-扩展到多孔金属有机框架（MOF）纳米颗粒。将开发金属纳米颗粒和MOF纳米颗粒以具有互补的物理化学性质。对NP的物理-有机研究将建立NP结合反应的结构-反应性关系。由此产生的理解，然后将被利用来构建由纳米尺寸的MOF和金属构建块通过特定的动态分子连接器连接的混合材料。由此产生的材料将被赋予层次结构控制和适应行为，这是潜在的动态分子链接的特征。