Multivariate MOFs for laser writing of alloy nanoparticle patterns

Ma, Ruiqian; Jiang, Haoqing; Wang, Chao; ChengBin, Zhao; Deng, Hexiang

doi:10.1039/c9cc09144k

Cited by 23 publications

(25 citation statements)

References 25 publications

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“…For example, by tuning the ratio of amino functional groups in mixed-linker MIL-101-(NH 2 ) x , the amount of nitrogen content in the metal carbide product could also be controlled accordingly . In another study, Deng and co-workers investigated the laser-triggered transformation of metal alloy nanoparticles from three types of MOF precursors that show different metal distributions . Conversion of physical mixtures containing two single metal component MOFs generated separate metal nanoparticles, while conversion of salt-in-MOFs allowed for the formation of metal nanoparticles with isolated domains.…”

Section: Photolytic Destructionmentioning

confidence: 99%

Destruction of Metal–Organic Frameworks: Positive and Negative Aspects of Stability and Lability

et al. 2020

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Metal–organic frameworks (MOFs), constructed from organic linkers and inorganic building blocks, are well-known for their high crystallinity, high surface areas, and high component tunability. The stability of MOFs is a key prerequisite for their potential practical applications in areas including storage, separation, catalysis, and biomedicine since it is essential to guarantee the framework integrity during utilization. However, MOFs are prone to destruction under external stimuli, considerably hampering their commercialization. In this Review, we provide an overview of the situations where MOFs undergo destruction due to external stimuli such as chemical, thermal, photolytic, radiolytic, electronic, and mechanical factors and offer guidelines to avoid unwanted degradation happened to the framework. Furthermore, we discuss possible destruction mechanisms and their varying derived products. In particular, we highlight cases that utilize MOF instability to fabricate varying materials including hierarchically porous MOFs, monolayer MOF nanosheets, amorphous MOF liquids and glasses, polymers, metal nanoparticles, metal carbide nanoparticles, and carbon materials. Finally, we provide a perspective on the utilization of MOF destruction to develop advanced materials with a superior hierarchy for various applications.

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Section: Photolytic Destructionmentioning

confidence: 99%

Destruction of Metal–Organic Frameworks: Positive and Negative Aspects of Stability and Lability

et al. 2020

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“…Generally, the inorganic component of MOFs are converted into metal nanoparticles after laser irradiation. [20,21,[24][25][26] The residual metal elements have been further investigated to confirm their valence state by XPS. The high-resolution metal spectra of LIC-(ZIF-8), LIC-(ZIF-67), LIC-(MOF-199), and LIC-(Ni-BDC-TED) show zinc, cobalt, copper, and nickel species in the zero-oxidation state ( Figure S7A−C,F, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Laser‐Assisted Printing of Electrodes Using Metal–Organic Frameworks for Micro‐Supercapacitors

Zhang

Han

et al. 2021

Adv Funct Materials

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Direct laser scribing, an advanced printing technique, has been recently developed to enable the carbonization of carbonaceous precursors in a rapid, precise, and cost-effective manner. Herein, it is reported that metal−organic frameworks (MOFs) can be converted into patterned derived carbon with desired structural features using a CO 2 infrared laser system. Metal species in MOFs play a key role in the morphology, porous structure, and crystallinity of the resulting laser-induced products by studying six representative MOFs. Diverse features such as ordered porous structure and continuous network microstructure can be obtained in the laser-induced MOF-derived carbon, which is influenced by the melting and boiling points of metals and their magnetic and catalytic behaviors. Furthermore, a core-shell structured composite (MOF-199@ZIF-67) has been designed and prepared for the fabrication of 12-interdigital electrodes derived from the composite by laser-assisted printing. The as-obtained electrodes with highly porous and hierarchical structure show an enhanced specific capacitance for micro-supercapacitors (MSCs). This work provides a complementary heat treatment method to produce MOF-derived carbon nanomaterials with desired structural features and patterns for MSCs and micro-device-related applications.

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“…It is worth noting that the transition metal atoms in bimetallic NP tend to be oxidized and dissolved by dissolved oxygen, resulting in chemical dealloying in solution. Therefore, bimetallic NPs can be used as the self-sacrificial template to synthesis the required MNPs@MOF composite material with definite structure [100,101]. Chen and his co-workers reported a MOF-74(Ni)-encapsulated Rh-Ni hierarchical hetero structures (Rh-Ni@MOF-74(Ni)) using magnetic Rh-Ni-alloyed nanoflowers (NFs) as a self-sacrificial template [96] (Figure 4b).…”

Section: Self-sacrificial Template Methodsmentioning

confidence: 99%

Synthesis of Magnetic Metal-Organic Frame Material and Its Application in Food Sample Preparation

Yang

Wang

Pan

et al. 2020

Foods

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A variety of contaminants in food is an important aspect affecting food safety. Due to the presence of its trace amounts and the complexity of food matrix, it is very difficult to effectively separate and accurately detect them. The magnetic metal-organic framework (MMOF) composites with different structures and functions provide a new choice for the purification of food matrix and enrichment of trace targets, thus providing a new direction for the development of new technologies in food safety detection with high sensitivity and efficiency. The MOF materials composed of inorganic subunits and organic ligands have the advantages of regular pore structure, large specific surface area and good stability, which have been thoroughly studied in the pretreatment of complex food samples. MMOF materials combined different MOF materials with various magnetic nanoparticles, adding magnetic characteristics to the advantages of MOF materials, which are in terms of material selectivity, biocompatibility, easy operation and repeatability. Combined with solid phase extraction (SPE) technique, MMOF materials have been widely used in the food pretreatment. This article introduced the new preparation strategies of different MMOF materials, systematically summarizes their applications as SPE adsorbents in the pretreatment of food contaminants and analyzes and prospects their future application prospects and development directions.

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Multivariate MOFs for laser writing of alloy nanoparticle patterns

Abstract: We report three methods for the synthesis of alloy nanoparticles by a laser in air, where three types of MOF precursors are used.

Cited by 23 publications

References 25 publications

Destruction of Metal–Organic Frameworks: Positive and Negative Aspects of Stability and Lability

Destruction of Metal–Organic Frameworks: Positive and Negative Aspects of Stability and Lability

Laser‐Assisted Printing of Electrodes Using Metal–Organic Frameworks for Micro‐Supercapacitors

Synthesis of Magnetic Metal-Organic Frame Material and Its Application in Food Sample Preparation

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