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.

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.

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.

scholarly journals Metal-Organic Frameworks in Oxidation Catalysis with Hydrogen Peroxide

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 283
Author(s):  
Oxana Kholdeeva ◽  
Nataliya Maksimchuk
Keyword(s):  
Hydrogen Peroxide ◽  
Liquid Phase ◽  
Selective Oxidation ◽  
Metal Organic Frameworks ◽  
Short Review ◽  
Catalytic Performance ◽  
Oxidation Catalysis ◽  
Catalyst Stability ◽  
Aqueous Hydrogen Peroxide ◽  
Metal Organic

In recent years, metal–organic frameworks (MOFs) have received increasing attention as selective oxidation catalysts and supports for their construction. In this short review paper, we survey recent findings concerning use of MOFs in heterogeneous liquid-phase selective oxidation catalysis with the green oxidant–aqueous hydrogen peroxide. MOFs having outstanding thermal and chemical stability, such as Cr(III)-based MIL-101, Ti(IV)-based MIL-125, Zr(IV)-based UiO-66(67), Zn(II)-based ZIF-8, and some others, will be in the main focus of this work. The effects of the metal nature and MOF structure on catalytic activity and oxidation selectivity are analyzed and the mechanisms of hydrogen peroxide activation are discussed. In some cases, we also make an attempt to analyze relationships between liquid-phase adsorption properties of MOFs and peculiarities of their catalytic performance. Attempts of using MOFs as supports for construction of single-site catalysts through their modification with heterometals will be also addressed in relation to the use of such catalysts for activation of H2O2. Special attention is given to the critical issues of catalyst stability and reusability. The scope and limitations of MOF catalysts in H2O2-based selective oxidation are discussed.

From Ru nanoparticle-encapsulated metal–organic frameworks to highly catalytically active Cu/Ru nanoparticle-embedded porous carbon

2017 ◽  
Vol 5 (10) ◽  
pp. 4835-4841 ◽  
Author(s):  
Pradip Pachfule ◽  
Xinchun Yang ◽  
Qi-Long Zhu ◽  
Nobuko Tsumori ◽  
Takeyuki Uchida ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Porous Carbon ◽  
Metal Organic Frameworks ◽  
Ammonia Borane ◽  
Carbon Composites ◽  
High Catalytic Activity ◽  
Catalytically Active ◽  
Metal Organic

High-temperature pyrolysis of Ru nanoparticle-encapsulated MOF (Ru@HKUST-1) afforded ultrafine Cu/Ru nanoparticle-embedded porous carbon composites (Cu/Ru@C), which show high catalytic activity for ammonia borane hydrolysis.

Catalytic Performance of Zr‐Based Metal–Organic Frameworks Zr‐abtc and MIP‐200 in Selective Oxidations with H 2 O 2

2021 ◽  
Vol 27 (23) ◽  
pp. 6985-6992 ◽  
Author(s):  
Nataliya V. Maksimchuk ◽  
Irina D. Ivanchikova ◽  
Kyung Ho Cho ◽  
Olga V. Zalomaeva ◽  
Vasiliy Yu. Evtushok ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Metal Organic

Defect formation in metal–organic frameworks initiated by the crystal growth-rate and effect on catalytic performance

2017 ◽  
Vol 354 ◽  
pp. 84-91 ◽  
Author(s):  
Somboon Chaemchuen ◽  
Zhixiong Luo ◽  
Kui Zhou ◽  
Bibimaryam Mousavi ◽  
Suphot Phatanasri ◽  
...  
Keyword(s):  
Growth Rate ◽  
Crystal Growth ◽  
Defect Formation ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Crystal Growth Rate ◽  
Metal Organic

Facile preparation of a hierarchically porous metal–organic nanocomposite with excellent catalytic performance

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97399-97403 ◽  
Author(s):  
Rui Kuang ◽  
Luyi Zheng ◽  
Ethan Cottrill ◽  
Ning Pan ◽  
Yanhui Chi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Aging Process ◽  
Porous Metal ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Hierarchically Porous ◽  
Hierarchical Porous ◽  
Metal Organic ◽  
Facile Preparation ◽  
Excellent Catalytic Performance

A hierarchical porous MOF nanocrystal, hpCuL (L = 2,4,6-tris(3,5-dicarboxylatephenylamino)-1,3,5-triazine) was prepared via a facile gel-aging process. This nanocomposite exhibits high catalytic activity and stability for the reduction of 4-nitrophenol.

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