Controlled Encapsulation of Functional Organic Molecules within Metal–Organic Frameworks: In Situ Crystalline Structure Transformation

Guan, Jinju; Hu, Yu Lin; Wang, Yu; Li, Hongfeng; Xu, Zhiling; Zhang, Tao; Wu, Peng; Zhang, Suoying; Xiao, Gengwu; Ji, Wenlan; Fu, Pingqing; Zhang, Meixuan; Fan, Yun; Li, Lin; Zheng, Bing; Zhang, Weina; Huang, Wei; Huo, Fengwei

doi:10.1002/adma.201606290

Cited by 75 publications

(49 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thes tructural transformation of 2D layered ZIF-L ([Zn(MeIm) 2 (HMeIm) 1/2 (H 2 O) 3/2 ] n (2-methylimidazole (HMeIm));S cheme 1; Supporting Information, Figure S1) into 3D ZIF-8 ([Zn(MeIm) 2 ] n ,S cheme 1; Figure S1) by asimple thermal treatment of leaf-shaped ZIF-L was recently reported. [6] During the thermal treatment of ZIF-L, athermodynamically unstable 2D ZIF-L was transformed into amore stable 3D ZIF-8 while maintaining its original leaf shape (Scheme 1, T process). Powder X-ray diffraction (PXRD) patterns of as eries of samples obtained at different time points during the thermal treatment indicated the gradual structural transformation of 2D ZIF-L into 3D ZIF-8 (Figure S2).…”

Section: Resultsmentioning

confidence: 99%

Atypical Hybrid Metal–Organic Frameworks (MOFs): A Combinative Process for MOF‐on‐MOF Growth, Etching, and Structure Transformation

Lee

2019

Angew Chem Int Ed

136

View full text Add to dashboard Cite

The structural, compositional, and morphological features of metal–organic frameworks (MOFs) govern their properties and applications. Construction of hybrid MOFs with complicated structures, components, or morphologies is significant for the development of well‐organized MOFs. An advanced route is reported for construction of atypical hybrid MOFs with unique morphologies and complicated components: 1) MOF‐on‐MOF growth of a 3D zeolitic imidazolate framework (ZIF) on a ZIF‐L template, 2) etching of a part of the 2D ZIF‐L template, and 3) structural transformation of 2D ZIF‐L into 3D ZIF. The formation of core–shell‐type MOF rings and plates is controlled by regulating the three processes. The formation route for the core–shell‐type MOF rings and plates was monitored by tracking changes in morphology, structure, and composition. Carbon materials prepared from the pyrolysis of the core–shell‐type hybrid MOFs displayed enhanced oxygen reduction reaction activities compared to their monomeric counterparts.

show abstract

Section: Resultsmentioning

confidence: 99%

Atypical Hybrid Metal–Organic Frameworks (MOFs): A Combinative Process for MOF‐on‐MOF Growth, Etching, and Structure Transformation

Lee

2019

Angew Chem Int Ed

136

View full text Add to dashboard Cite

show abstract

“…All these results suggest MOF‐Cs are good candidates for effective encapsulation. Besides, quenching experiments using halogens with different molecular sizes as quenchers were conducted to investigate the size‐selectivity of MOF‐Cs . The iodomethane molecules (Q1, 5.9 × 4.5 × 4.5 Å) could get access to the pores of MOF‐Cs (5.9 Å) and PMMA‐Cs (20.7 Å) for quenching RB, as confirmed by similar quenching efficiency of RB, RB@PMMA‐Cs, and RB@MOF‐Cs (Figure C).…”

Section: Resultsmentioning

confidence: 66%

Compartmentalization within Self‐Assembled Metal–Organic Framework Nanoparticles for Tandem Reactions

Xiao

et al. 2018

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Compartmentalization is an essential feature found in living cells to ensure multiple biological processes occur without being affected by undesired external influences. Here, compartmentalized systems are developed based on the self-assembly of metal-organic framework (MOF) nanoparticles into multifunctional MOF capsules (MOF-Cs). Such MOF-Cs have the capability of controlling molecular transportation and protecting interior microenvironment, thus making tandem reaction along trajectories to desired products. First of all, MOF-Cs present controlled molecular transportation derived from molecular sieving property of MOFs. Second, MOF-Cs can protect the encapsulated cargoes from denaturation and maintain their catalytic activity. Third, MOF-Cs can provide spatial segregation for incompatible species and facilitate communication between these compartments to perform tandem reactions. These compartmentalized structures offer new views in the transportation, microreactor, and biotechnology. selective catalysis was achieved by employing a time-consuming approach, which was the assembly of UiO-66 NPs around emulsion droplets with the further deposition of ZIF-8. [21] Therefore, developing a facile strategy to construct MOF capsules in order to simultaneously realize efficient encapsulation, controlled transport, compartmentalization effect, and communication capabilities remains a considerable challenge.Here, we develop a facile strategy to structure MOF capsules (MOF-Cs) by the self-assembly process of MOF NPs in the oilwater surface and using polymer precipitation as a support layer for enhancing stability. The obtained MOF-Cs own the MOFs layer for controlling molecular transportation, the hollow structure for supplying confined reaction space, and the ability of encapsulating diverse species for offering catalytic active sites. First and foremost, MOF-Cs exhibit controlled transport originated from size-sieving ability of MOFs. Second, MOF-Cs can keep the encapsulated cargoes from denaturation and preserve their catalytic activity. Third, MOF-Cs can provide spatial segregation for incompatible species. Furthermore, MOF-Cs separately encapsulated with incompatible species are capable of communicating with each other to perform multistep reactions.

show abstract

“…The secondary component could react with MOFs or be transformed into active species with indispensable functionalities.In spite of several review articles demonstrating MOFderived hollow nanomaterials and their energy-related applications, [18][19][20] a systematic summarization of recent progress on synthesis and applications of secondary incorporated hollow Their highly functional nature has endowed metal-organic frameworks (MOFs) with diverse applications. However, those materials mainly derive from restricted MOF types and compositions, which significantly limit the further performance improvement.…”

mentioning

confidence: 99%

“…In spite of several review articles demonstrating MOFderived hollow nanomaterials and their energy-related applications, [18][19][20] a systematic summarization of recent progress on synthesis and applications of secondary incorporated hollow Their highly functional nature has endowed metal-organic frameworks (MOFs) with diverse applications. On this basis, a higher demand has been proposed for the preparation of novel-structured MOFs.…”

mentioning

confidence: 99%

Secondary‐Component Incorporated Hollow MOFs and Derivatives for Catalytic and Energy‐Related Applications

2018

View full text Add to dashboard Cite

Their highly functional nature has endowed metal-organic frameworks (MOFs) with diverse applications. On this basis, a higher demand has been proposed for the preparation of novel-structured MOFs. Hollow MOFs have been intensively studied and exhibited versatile properties, and among the various methods, secondary-component incorporation has been proved promising in the design and preparation of complex structures with requisite properties. Herein, the synthesis and applications of secondary component incorporated MOFs and their derivatives are systematically reviewed. Two main methodologies, preincorporation and postmodification, are discussed in detail, and the role of the secondary component is demonstrated. Based on these introductions, the applications of those materials, including chemical catalysis, electrocatalysis, and energy storage applications, are summarized. Finally, a personal outlook for the future opportunities and challenges in this field is given.

show abstract

Controlled Encapsulation of Functional Organic Molecules within Metal–Organic Frameworks: In Situ Crystalline Structure Transformation

Cited by 75 publications

References 37 publications

Atypical Hybrid Metal–Organic Frameworks (MOFs): A Combinative Process for MOF‐on‐MOF Growth, Etching, and Structure Transformation

Atypical Hybrid Metal–Organic Frameworks (MOFs): A Combinative Process for MOF‐on‐MOF Growth, Etching, and Structure Transformation

Compartmentalization within Self‐Assembled Metal–Organic Framework Nanoparticles for Tandem Reactions

Secondary‐Component Incorporated Hollow MOFs and Derivatives for Catalytic and Energy‐Related Applications

Contact Info

Product

Resources

About