<br>新兴的基于 MOF 的原始异质结构纳米结构：结构演化、受控合成的进展和未来展望,Small

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新兴的基于 MOF 的原始异质结构纳米结构：结构演化、受控合成的进展和未来展望
Small ( IF 13.0 ) Pub Date : 2023-08-25 , DOI: 10.1002/smll.202303884
Qingqing He ₁ , Jie Bai ₁ , Huayu Wang ₁ , Shude Liu _{2,

3} , Seong Chan Jun ₃ , Yusuke Yamauchi _{4,

5} , Lingyun Chen ₁

Affiliation

金属有机框架（MOF）可以通过模块化组装进行定制，以根据其所需的功能实现广泛的潜在应用。然而，大多数最初报道的MOF仅限于微孔系统并且不够稳定，这限制了它们的普及。将异质性引入简单的 MOF 框架中，以创建具有迷人特性和有趣功能的基于 MOF 的异质结构。异质性可以通过合成后/配体交换引入 MOF 中。尽管配体交换已显示出潜力，但很难精确控制交换的程度或位置。在各种合成策略中，分层组装对于构建基于MOF的异质结构特别有吸引力，因为它可以实现基于MOF的异质结构纳米结构的精确调控。分层组装显着扩展了基于MOF的异质结构的成分多样性，在MOF外延生长过程中具有高晶格匹配弹性。本综述重点关注基于 MOF 的纳米结构分层组装的合成进化机制。随后，强调了通过分层组装对基于 MOF 的纳米结构的孔结构、孔径和形貌的精确控制。最后，提出了解决异构接口相关挑战的可能解决方案，并提出了创新应用的潜在机会。

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Emerging Pristine MOF-Based Heterostructured Nanoarchitectures: Advances in Structure Evolution, Controlled Synthesis, and Future Perspectives

Metal–organic frameworks (MOFs) can be customized through modular assembly to achieve a wide range of potential applications, based on their desired functionality. However, most of the initially reported MOFs are limited to microporous systems and are not sufficiently stable, which restricts their popularization. Heterogeneity is introduced into a simple MOF framework to create MOF-based heterostructures with fascinating properties and interesting functions. Heterogeneity can be introduced into the MOFs via postsynthetic/ligand exchange. Although the ligand exchange has shown potential, it is difficult to precisely control the degree of exchange or position. Among the various synthesis strategies, hierarchical assembly is particularly attractive for constructing MOF-based heterostructures, as it can achieve precise regulation of MOF-based heterostructured nanostructures. The hierarchical assembly significantly expands the compositional diversity of MOF-based heterostructures, which has high elasticity for lattice matching during the epitaxial growth of MOFs. This review focuses on the synthetic evolution mechanism of hierarchical assemblies of MOF-based nanoarchitectures. Subsequently, the precise control of pore structure, pore size, and morphology of MOF-based nanoarchitectures by hierarchical assembly is emphasized. Finally, possible solutions to address the challenges associated with heterogeneous interfaces are presented, and potential opportunities for innovative applications are proposed.

更新日期：2023-08-25

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