The use of reduced copper metal–organic frameworks to facilitate CuAAC click chemistry

2016 ◽  
Vol 52 (82) ◽  
pp. 12226-12229 ◽  
Author(s):  
Q. Fu ◽  
K. Xie ◽  
S. Tan ◽  
J. M. Ren ◽  
Q. Zhao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Click Chemistry ◽  
Structural Stability ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Copper Metal ◽  
Copper Halide ◽  
Click Reactions ◽  
Metal Organic ◽  
Organic Framework

A reduced copper metal–organic framework (rCu-MOF) containing CuI ions was prepared and employed as a catalyst for ‘Click’ reactions. The rCu-MOF presents higher catalytic activity, good structural stability as well as facile recyclability compared to traditional copper halide catalysts.

Colloidal-sized zirconium porphyrin metal–organic frameworks with improved peroxidase-mimicking catalytic activity, stability and dispersity

The Analyst ◽  
2020 ◽  
Vol 145 (8) ◽  
pp. 3002-3008 ◽  
Author(s):  
Junning Wang ◽  
Tianxiang Wei ◽  
Yichen Liu ◽  
Mengyuan Bao ◽  
Rui Feng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Organic Framework

A new and facile method was developed to synthesize a sub-100 nm zirconium porphyrin metal–organic framework with improved peroxidase-mimicking catalytic activity, stability and dispersity.

Copper metal–organic framework nanocrystal for plane effect nonenzymatic electro-catalytic activity of glucose

Nanoscale ◽  
2014 ◽  
Vol 6 (19) ◽  
pp. 10989-10994 ◽  
Author(s):  
Yuanying Liu ◽  
Youjuan Zhang ◽  
Jing Chen ◽  
Huan Pang
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Framework ◽  
Copper Metal ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Electro Catalytic Activity ◽  
Organic Framework

Nanocrystal plane affects nonenzymatic electro-catalytic glucose activity of [Cu3(btc)2] nanocrystals, and the activity changes from highly sensitive to general with decrease of {100} crystal planes from cubes to octahedra.

Size Selectivity of a Copper Metal-Organic Framework and Origin of Catalytic Activity in Epoxide Alcoholysis

2009 ◽  
Vol 15 (45) ◽  
pp. 12255-12262 ◽  
Author(s):  
Dongmei Jiang ◽  
Atsushi Urakawa ◽  
Maxim Yulikov ◽  
Tamas Mallat ◽  
Gunnar Jeschke ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Framework ◽  
Size Selectivity ◽  
Copper Metal ◽  
Metal Organic ◽  
Organic Framework

Metal Organic Framework Based Catalytic Nanoreactors (CatNRs): Synthetic Challenges and Applications

2021 ◽  
Author(s):  
Soumen Dutta ◽  
In Su Lee
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysis ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Protective Shell ◽  
Metal Organic ◽  
The Stability ◽  
Organic Framework

Catalytic nanoreactors have become hugely important in the field of heterogeneous catalysis due to their intriguing catalytic activity and the stability of the nanocatalysts inside the protective shell. Metal-organic frameworks...

scholarly journals Post synthetic exchange enables orthogonal click chemistry in a metal organic framework

2019 ◽  
Vol 48 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Ulrike Fluch ◽  
Brian D. McCarthy ◽  
Sascha Ott
Keyword(s):  
Click Chemistry ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Linker Exchange ◽  
Organic Framework

Post synthetic linker exchange can be combined with Cu-catalyzed alkyne/azide click chemistry to enable orthogonal modification of known metal organic frameworks.

Triple-shelled CuO/CeO2 hollow nanospheres derived from metal–organic frameworks as highly efficient catalysts for CO oxidation

2019 ◽  
Vol 43 (40) ◽  
pp. 16096-16102 ◽  
Author(s):  
Xue-Zhi Song ◽  
Qiao-Feng Su ◽  
Shao-Jie Li ◽  
Si-Hang Liu ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Cyclic Stability ◽  
Hollow Nanospheres ◽  
Highly Efficient ◽  
Metal Organic ◽  
Organic Framework

Through a metal–organic framework engaged strategy, triple-shelled CuO/CeO2-8% hollow nanospheres are fabricated as superior nanocatalysts for CO oxidation with excellent catalytic activity and cyclic stability.

Porous Metal-Organic Framework Materials: Microwave Assisted Synthesis and Oxidative Catalytic Tests

2012 ◽  
Vol 730-732 ◽  
pp. 1024-1029
Author(s):  
André D.S. Barbosa ◽  
Salete S. Balula ◽  
Filipe A. Almeida Paz ◽  
Baltazar de Castro ◽  
Luís Cunha-Silva
Keyword(s):  
Catalytic Activity ◽  
Structural Stability ◽  
Metal Organic Framework ◽  
Microwave Assisted Synthesis ◽  
Ir Absorption ◽  
Oxidation Reactions ◽  
Framework Materials ◽  
Microwave Assisted ◽  
Metal Organic ◽  
Organic Framework

Metal-Organic Framework Materials MIL‑101(Cr) ([Cr3X(H2O)2O(bdc)3]∙n(H2O), where X− = F− or OH−, n ≈ 25 and H2bdc stands for 1,4-benzene-dicarboxylic acid] and MOF‑5(Zn) [Zn4O(bdc)3] were prepared by hydrothermal or solvothermal methods as well as Microwave‑Assisted Synthesis (MWAS), for which the detailed synthetic parameters were optimized. The crystal structures were confirmed by powder X-ray diffraction and the materials were further characterized by FT‑IR absorption spectroscopy. MIL‑101(Cr) and MOF‑5(Zn) showed weak catalytic activity in the oxidation of terpene, thiophene and cis-cyclooctene. Reasonable catalytic activity was observed for MOF-5(Zn) in the epoxidation of cis-cyclooctene and a 100 % of selectivity was observed for the epoxide. The structural stability of the materials was tested under the employed catalytic medium for oxidation reactions. MOF-5(Zn) revealed a remarkable structural stability at high temperature and also in the presence of high oxidant amounts.

Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

An Overview of Metal-organic Frameworks-based Acid/Base Catalysts for Biofuel Synthesis

2020 ◽  
Vol 24 (16) ◽  
pp. 1876-1891
Author(s):  
Qiuyun Zhang ◽  
Yutao Zhang ◽  
Jingsong Cheng ◽  
Hu Li ◽  
Peihua Ma
Keyword(s):  
Alternative Fuels ◽  
Heterogeneous Catalysts ◽  
Supported Catalysts ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Flexible Structures ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
Metal Organic ◽  
Organic Framework

Biofuel synthesis is of great significance for producing alternative fuels. Among the developed catalytic materials, the metal-organic framework-based hybrids used as acidic, basic, or supported catalysts play major roles in the biodiesel production. This paper presents a timely and comprehensive review of recent developments on the design and preparation of metal-organic frameworks-based catalysts used for biodiesel synthesis from various oil feedstocks, including MILs-based catalysts, ZIFs-based catalysts, UiO-based catalysts, Cu-BTC-based catalysts, and MOFs-derived porous catalysts. Due to their unique and flexible structures, excellent thermal and hydrothermal stability, and tunable host-guest interactions, as compared with other heterogeneous catalysts, metal-organic framework-based catalysts have good opportunities for application in the production of biodiesel at industrial scale.

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