scholarly journals Interwrapping Distinct Metal-Organic Frameworks in Dual-MOFs for the Creation of Unique Composite Catalysts

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Jia-Long Ling ◽  
Kai Chen ◽  
Chuan-De Wu
Keyword(s):  
Heterogeneous Catalysts ◽  
Catalytic Properties ◽  
Metal Organic Frameworks ◽  
Value Added ◽  
Composite Catalysts ◽  
Redox Active ◽  
Hierarchical Porous ◽  
Metal Organic ◽  
Molecular Sieving

Incorporating metal nanoparticles (MNPs) inside metal-organic frameworks (MOFs) demonstrates superior catalytic properties in numerous reactions; however, the size and distribution of MNPs could not be well controlled, resulting in low product selectivity in catalysis by undergoing different catalytic reaction pathways. We report herein a facile strategy for integrating lattice-mismatched MOFs together to fabricate homogeneously distributed “dual-MOFs,” which are the ideal precursors for the preparation of MNPs@MOFs with unique catalytic properties. As a proof of concept, we successfully synthesize a dual-MOF HKUST-1/ZIF-8 for in situ creation of redox-active Cu NPs inside hierarchical porous ZIF-8 under controlled pyrolytic conditions. Combining the advantages of size-tunable Cu NPs in the molecular sieving matrix of ZIF-8, Cu@ZIF-8 demonstrates high activity and selectivity for transformation of alkynes into alkenes without overhydrogenation, which surpasses most of the catalysts in the literature. Therefore, this work paves a new pathway for developing highly efficient and selective heterogeneous catalysts to produce highly value-added chemicals.

Hierarchical porous Ni, Fe-codoped Co-hydroxide arrays derived from metal-organic-frameworks for enhanced oxygen evolution

2021 ◽  
Author(s):  
Qian Ren ◽  
Jin-Qi Wu ◽  
Chengfei Li ◽  
Lin-Fei Gu ◽  
Ling-Jie Xie ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Metal Organic Frameworks ◽  
Nanowire Arrays ◽  
Hierarchical Porous ◽  
Structure Reconstruction ◽  
Metal Organic

The multi metal organic framworks (BTC-CoNiFeZn) were used as the precursors of in-situ structure reconstruction, and we synthesized hierarchical porous Ni,Fe-codoped Co-hydroxide nanowire arrays (Ni0.8Fe0.2/Co-H NAs/NF) catalyst for oxygen evolution...

scholarly journals A Review on Metal-Organic Frameworks as Congenial Heterogeneous Catalysts for Potential Organic Transformations

2021 ◽  
Vol 9 ◽  
Author(s):  
Kranthi Kumar Gangu ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Metal Organic Frameworks ◽  
Value Added ◽  
Biological Molecules ◽  
Full Potential ◽  
Organic Transformations ◽  
Solid Catalysts ◽  
Metal Organic ◽  
Catalytic Active Sites

Metal-organic frameworks (MOFs) have emerged as versatile candidates of interest in heterogeneous catalysis. Recent research and developments with MOFs positively endorse their role as catalysts in generating invaluable organic compounds. To harness the full potential of MOFs in value-added organic transformation, a comprehensive look at how these materials are likely to involve in the catalytic processes is essential. Mainstays of MOFs such as metal nodes, linkers, encapsulation materials, and enveloped structures tend to produce capable catalytic active sites that offer solutions to reduce human efforts in developing new organic reactions. The main advantages of choosing MOFs as reusable catalysts are the flexible and robust skeleton, regular porosity, high pore volume, and accessible synthesis accompanied with cost-effectiveness. As hosts for active metals, sole MOFs, modified MOFs, and MOFs have made remarkable advances as solid catalysts. The extensive exploration of the MOFs possibly led to their fast adoption in fabricating new biological molecules such as pyridines, quinolines, quinazolinones, imines, and their derivatives. This review covers the varied MOFs and their catalytic properties in facilitating the selective formation of the product organic moieties and interprets MOF’s property responsible for their elegant performance.

scholarly journals Zirconium metal–organic frameworks incorporating tetrathiafulvalene linkers: robust and redox-active matrices for in situ confinement of metal nanoparticles

2020 ◽  
Vol 11 (7) ◽  
pp. 1918-1925 ◽  
Author(s):  
Jian Su ◽  
Shuai Yuan ◽  
Tao Wang ◽  
Christina Tori Lollar ◽  
Jing-Lin Zuo ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Metal Organic Frameworks ◽  
Noble Metal Nanoparticles ◽  
Heterogenous Catalysis ◽  
Redox Active ◽  
Active Metal ◽  
Metal Organic ◽  
Zirconium Metal ◽  
Redox Active Metal

Stable and redox active metal–organic frameworks were constructed by incorporating Zr6 clusters and redox-active TTF-based linkers, which allow in situ generation and stabilization of ultra-small noble metal nanoparticles for heterogenous catalysis.

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.

scholarly journals Effect of linker functionalisation on the catalytic properties of Cu nanoclusters embedded in MOFs in direct CO and CO2 reduction by H2

2021 ◽  
Author(s):  
Cornelia Elizabeth Pompe ◽  
Petra Agota Szilagyi
Keyword(s):  
Catalytic Properties ◽  
Metal Organic Frameworks ◽  
Co2 Reduction ◽  
Catalytically Active ◽  
Metal Organic ◽  
Cu Nanoclusters

Metal-organic frameworks are promising host supporting matrices for catalytically active guest. In particular, their crystallinity renders them desirable as their pores may act as atom-precise templates for the growth of...

scholarly journals In situ X‐ray Diffraction Investigation of the Crystallisation of Perfluorinated Ce(IV)‐based Metal‐Organic Frameworks with UiO‐66 and MIL‐140 architectures

2021 ◽  
Author(s):  
Stephen J. I. Shearan ◽  
Jannick Jacobsen ◽  
Ferdinando Costantino ◽  
Roberto D’Amato ◽  
Dmitri Novikov ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic
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