Inverse relationship of dimensionality and catalytic activity in CO2transformation: a systematic investigation by comparing multidimensional metal–organic frameworks

2017 ◽  
Vol 5 (30) ◽  
pp. 15961-15969 ◽  
Author(s):  
Robin Babu ◽  
Roshith Roshan ◽  
Yeongrok Gim ◽  
Yun Hee Jang ◽  
Jintu Francis Kurisingal ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Inverse Relationship ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Systematic Investigation ◽  
Cycloaddition Reactions ◽  
Metal Organic ◽  
Relationship Of

The correlation between dimensionality and active sites on deciding the catalytic performance of an MOF catalyst in CO2–epoxide cycloaddition reactions has been studied.

scholarly journals MOFs-Derived Zn-Based Catalysts in Acetylene Acetoxylation

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 98
Author(s):  
Mengli Li ◽  
Zhuang Xu ◽  
Yuhao Chen ◽  
Guowang Shen ◽  
Xugen Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Electron Cloud ◽  
Nitrogen Gas ◽  
X Ray ◽  
Metal Organic ◽  
Cloud Density

Metal–organic frameworks (MOFs)-derived materials with a large specific surface area and rich pore structures are favorable for catalytic performance. In this work, MOFs are successfully prepared. Through pyrolysis of MOFs under nitrogen gas, zinc-based catalysts with different active sites for acetylene acetoxylation are obtained. The influence of the oxygen atom, nitrogen atom, and coexistence of oxygen and nitrogen atoms on the structure and catalytic performance of MOFs-derived catalysts was investigated. According to the results, the catalysts with different catalytic activity are Zn-O-C (33%), Zn-O/N-C (27%), and Zn-N-C (12%). From the measurements of X-ray photoelectron spectroscopy (XPS), it can be confirmed that the formation of different active sites affects the electron cloud density of zinc. The electron cloud density of zinc affects the ability to attract CH3COOH, which makes catalysts different in terms of catalytic activity.

Mechanosynthesis of new azine-functionalized Zn(ii) metal–organic frameworks for improved catalytic performance

2014 ◽  
Vol 2 (40) ◽  
pp. 16863-16866 ◽  
Author(s):  
Mohammad Yaser Masoomi ◽  
Saeideh Beheshti ◽  
Ali Morsali
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Metal Organic

Functionalization of MOF pore walls with azine groups enables greater interaction between the walls and substrate molecules, thereby increasing catalytic activity of the MOFs.

Defective Pt nanoparticles encapsulated in mesoporous metal–organic frameworks for enhanced catalysis

2018 ◽  
Vol 54 (64) ◽  
pp. 8822-8825 ◽  
Author(s):  
Qiang Wang ◽  
Xu-Sheng Wang ◽  
Chun-Hui Chen ◽  
Xue Yang ◽  
Yuan-Biao Huang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Pt Nanoparticles ◽  
Mild Conditions ◽  
Metal Organic ◽  
Mesoporous Metal ◽  
First Time

Highly ultrafine defective Pt nanoparticles (NPs) encapsulated in the mesopores of MIL-101 (Pt(Co)@MIL-101) were achieved for the first time through a chemical dealloying approach. The obtained material could provide more active sites to contact reactants and showed superior catalytic activity towards the hydrogenation of nitroarenes under mild conditions.

Tailoring the catalytic activity of metal organic frameworks by tuning the metal center and basic functional sites

2017 ◽  
Vol 41 (16) ◽  
pp. 8166-8177 ◽  
Author(s):  
Poonam Rani ◽  
Rajendra Srivastava
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Frameworks ◽  
Metal Center ◽  
Cycloaddition Reactions ◽  
Functional Sites ◽  
Amine Functionalized ◽  
Metal Organic ◽  
Acidity And Basicity

Optimum acidity and basicity of amine functionalized metal organic frameworks are important for condensation and cycloaddition reactions.

scholarly journals On the importance of combining bulk- and surface-active sites to maximize the catalytic activity of metal–organic frameworks for the oxidative dehydrogenation of alcohols using alkyl hydroperoxides as hydride acceptors

2020 ◽  
Vol 10 (20) ◽  
pp. 6935-6947
Author(s):  
P. Gairola ◽  
Y. Millot ◽  
J.-M. Krafft ◽  
F. Averseng ◽  
F. Launay ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxidative Dehydrogenation ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Mild Conditions ◽  
Alkyl Hydroperoxides ◽  
Metal Organic ◽  
Alcohol Dehydrogenation ◽  
Surface Active

The combination of spectroscopically characterized bulk- and surface-active zirconium sites makes Zr-MOF crystals efficient catalysts for alcohol dehydrogenation under mild conditions.

Construction of 2D interwoven and 3D metal–organic frameworks (MOFs) of Cd(ii): the effect of ancillary ligands on the structure and the catalytic performance for the Knoevenagel reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28854-28864 ◽  
Author(s):  
Bharat Ugale ◽  
C. M. Nagaraja
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Knoevenagel Reaction ◽  
Coordination Networks ◽  
Ancillary Ligands ◽  
Metal Organic ◽  
Dicarboxylate Ligand

The effect of ancillary ligands on structure and catalytic activity for Knoevenagel reaction of three new metal–organic coordination networks of Cd(ii) constructed from a rigid dicarboxylate ligand and various bipyridine spacers has been presented.

The design and catalytic performance of molybdenum active sites on an MCM-41 framework for the aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

2019 ◽  
Vol 9 (3) ◽  
pp. 811-821 ◽  
Author(s):  
Zhao-Meng Wang ◽  
Li-Juan Liu ◽  
Bo Xiang ◽  
Yue Wang ◽  
Ya-Jing Lyu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Mcm 41

The catalytic activity decreases as –(SiO)3Mo(OH)(O) > –(SiO)2Mo(O)2 > –(O)4–MoO.

Metal-Organic Frameworks (MOFs) as Fuels for Advanced Applications: Evaluating and Modifying the Combustion Energy of Popular MOFs

2019 ◽  
Author(s):  
Hatem M. Titi ◽  
Mihails Arhangelskis ◽  
Athanassis Katsenis ◽  
Cristina Mottillo ◽  
Ghada Ayoub ◽  
...  
Keyword(s):  
Energetic Materials ◽  
Energy Content ◽  
Metal Organic Frameworks ◽  
Systematic Investigation ◽  
Combustion Energy ◽  
Metal Organic ◽  
Advanced Applications ◽  
Ligand Replacement

Systematic investigation of combustion energies for popular metal-organic frameworks (MOFs) reveals energy content comparable to conventional energetic materials and can be further modified and dine-tuned by polymorphism and isostructural ligand replacement to yield materials with energy densities comparable to Diesel or kerosene.<br>

Metal-organic-framework derived hollow manganese nickel selenide spheres confined with nanosheets on nickel foam for hybrid supercapacitors

2021 ◽  
Author(s):  
Bahareh ameri ◽  
Akbar Mohammadi Zardkhoshoui ◽  
Saied Saeed Hosseiny Davarani
Keyword(s):  
Active Sites ◽  
Nickel Foam ◽  
Metal Organic Framework ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Supercapacitive Performance ◽  
Hybrid Supercapacitors ◽  
Porous Networks ◽  
Metal Organic

Metal-organic frameworks (MOFs) derived nanoarchitectures have special features, such as high surface area (SA), abundant active sites, exclusive porous networks, and remarkable supercapacitive performance when compared to traditional nanoarchitectures. Herein,...

Introducing High Density of Very Active Sites and Stepwise Postmodification for Tailoring the Porosity of Highly Demanding Cr3+-Based Metal–Organic Frameworks

2021 ◽  
Author(s):  
Jun-Hao Wang ◽  
Chun-Yang Shi ◽  
Meng-Na Li ◽  
Ying Zhang ◽  
Jian-Chao Niu ◽  
...  
Keyword(s):  
Active Sites ◽  
Metal Organic Frameworks ◽  
High Density ◽  
Metal Organic
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