Topological properties of metal-organic frameworks

AbstractMetal-organic frameworks (MOFs) are porous materials formed by strong bonds between metal ions and organic ligands to represent very high surface area, large pore volume, excellent chemical stability and unique morphology. Work on synthesis, structures and characteristics of many MOFs shows the importance of these frameworks with versatile applications, such as energy storage devices of excellent electrode materials, gas storage, heterogeneous catalysis, environmental hazard, assessment of chemicals and sensing of different gases. A topological property or index is a numerical invariant that predicts the physicochemical properties of the chemical compounds of the underlying molecular graph or framework. Wiener (1947) created the practice of the topological indices (TI’s) in organic molecules with the reference of boiling point of paraffin. In this paper, we study the two different metal-organic frameworks with respect to the number of increasing layers with metal and organic ligands as well. We also compute the generalized Zagreb index and generalized Zagreb connection index of these frameworks. Moreover, the various indices and connection indices are obtained by using the aforesaid generalized versions. At the end, a comparison is also included between the indices and connection indices with the help of numerical values and their 3D plots.

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M-polynomial-based topological indices of metal-organic networks

Main Group Metal Chemistry ◽

10.1515/mgmc-2021-0018 ◽

2021 ◽

Vol 44 (1) ◽

pp. 129-140

Author(s):

Agha Kashif ◽

Sumaira Aftab ◽

Muhammad Javaid ◽

Hafiz Muhammad Awais

Keyword(s):

High Surface ◽

Physical Stability ◽

High Surface Area ◽

Chemical Compounds ◽

Topological Indices ◽

Energy Storage Devices ◽

Storage Devices ◽

Metal Organic ◽

Relationship Of ◽

Different Gases

Abstract Topological index (TI) is a numerical invariant that helps to understand the natural relationship of the physicochemical properties of a compound in its primary structure. George Polya introduced the idea of counting polynomials in chemical graph theory and Winer made the use of TI in chemical compounds working on the paraffin's boiling point. The literature of the topological indices and counting polynomials of different graphs has grown extremely since that time. Metal-organic network (MON) is a group of different chemical compounds that consist of metal ions and organic ligands to represent unique morphology, excellent chemical stability, large pore volume, and very high surface area. Working on structures, characteristics, and synthesis of various MONs show the importance of these networks with useful applications, such as sensing of different gases, assessment of chemicals, environmental hazard, heterogeneous catalysis, gas and energy storage devices of excellent material, conducting solids, super-capacitors and catalysis for the purification, and separation of different gases. The above-mentioned properties and physical stability of these MONs become a most discussed topic nowadays. In this paper, we calculate the M-polynomials and various TIs based on these polynomials for two different MONs. A comparison among the aforesaid topological indices is also included to represent the better one.

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Mixed-metallic MOF based electrode materials for high performance hybrid supercapacitors

Journal of Materials Chemistry A ◽

10.1039/c6ta09805c ◽

2017 ◽

Vol 5 (3) ◽

pp. 1094-1102 ◽

Cited By ~ 164

Author(s):

Yang Jiao ◽

Jian Pei ◽

Dahong Chen ◽

Chunshuang Yan ◽

Yongyuan Hu ◽

...

Keyword(s):

Energy Storage ◽

Electrode Material ◽

High Performance ◽

Electrode Materials ◽

Metal Organic Frameworks ◽

Energy Storage Devices ◽

Storage Devices ◽

Hybrid Supercapacitors ◽

Metal Organic

Metal–organic frameworks (MOFs) have obtained increasing attention as a kind of novel electrode material for energy storage devices.

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Recent progress in water-splitting and supercapacitor electrode materials based on MOF-derived sulfides

Journal of Materials Chemistry A ◽

10.1039/d1ta05927k ◽

2021 ◽

Author(s):

Matheus Ireno da Silva ◽

Ítalo R. Machadoa ◽

Henrique E. Toma ◽

Koiti Araki ◽

Lúcio Angnes ◽

...

Keyword(s):

Recent Progress ◽

Electrode Materials ◽

High Surface ◽

Metal Organic Frameworks ◽

High Surface Area ◽

Energy Storage And Conversion ◽

Supercapacitor Electrode ◽

Conversion Materials ◽

Metal Organic ◽

Supercapacitor Electrode Materials

Metal–organic frameworks (MOFs) are being extensively reported as ideal templates or precursors for energy storage and conversion materials thanks to their unique architectures with high surface area, high ordered porosity,...

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The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

Nanomaterials ◽

10.3390/nano10112268 ◽

2020 ◽

Vol 10 (11) ◽

pp. 2268

Author(s):

Simin Huang ◽

Xue-Rong Shi ◽

Chunyan Sun ◽

Zhichang Duan ◽

Pan Ma ◽

...

Keyword(s):

Rational Design ◽

Electrode Materials ◽

Metal Organic Frameworks ◽

Metal Sulfide ◽

Electrical Performance ◽

Energy Storage Devices ◽

Large Power ◽

Storage Devices ◽

Rich Diversity ◽

Metal Organic

Supercapacitors (SCs), one of the most popular types of energy-storage devices, present lots of advantages, such as large power density and fast charge/discharge capability. Being the promising SCs electrode materials, metal–organic frameworks (MOFs) and their derivatives have gained ever-increasing attention due to their large specific surface area, controllable porous structure and rich diversity. Herein, the recent development of MOFs-based materials and their application in SCs as the electrode are reviewed and summarized. The preparation method, the morphology of the materials and the electrical performance of various MOFs and their derivatives (such as carbon, metal oxide/hydroxide and metal sulfide) are briefly discussed. Most of recent works concentrate on Ni-, Co- and Mn-MOFs and their composites/derivatives. Conclusions and our outlook for the researches are also given, which would be a valuable guideline for the rational design of MOFs materials for SCs in the near future.

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Nanomaterials for Hydrogen Storage Applications: A Review

Journal of Nanomaterials ◽

10.1155/2008/950967 ◽

2008 ◽

Vol 2008 ◽

pp. 1-9 ◽

Cited By ~ 97

Author(s):

Michael U. Niemann ◽

Sesha S. Srinivasan ◽

Ayala R. Phani ◽

Ashok Kumar ◽

D. Yogi Goswami ◽

...

Keyword(s):

Carbon Nanotubes ◽

Hydrogen Storage ◽

Synergistic Effects ◽

High Surface ◽

Metal Organic Frameworks ◽

High Surface Area ◽

Volume Ratio ◽

Boron Nitride Nanotubes ◽

Storage Devices ◽

Metal Organic

Nanomaterials have attracted great interest in recent years because of the unusual mechanical, electrical, electronic, optical, magnetic and surface properties. The high surface/volume ratio of these materials has significant implications with respect to energy storage. Both the high surface area and the opportunity for nanomaterial consolidation are key attributes of this new class of materials for hydrogen storage devices. Nanostructured systems including carbon nanotubes, nano-magnesium based hydrides, complex hydride/carbon nanocomposites, boron nitride nanotubes,TiS2/MoS2nanotubes, alanates, polymer nanocomposites, and metal organic frameworks are considered to be potential candidates for storing large quantities of hydrogen. Recent investigations have shown that nanoscale materials may offer advantages if certain physical and chemical effects related to the nanoscale can be used efficiently. The present review focuses the application of nanostructured materials for storing atomic or molecular hydrogen. The synergistic effects of nanocrystalinity and nanocatalyst doping on the metal or complex hydrides for improving the thermodynamics and hydrogen reaction kinetics are discussed. In addition, various carbonaceous nanomaterials and novel sorbent systems (e.g. carbon nanotubes, fullerenes, nanofibers, polyaniline nanospheres and metal organic frameworks etc.) and their hydrogen storage characteristics are outlined.

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

Dalton Transactions ◽

10.1039/d1dt01215k ◽

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,...

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Mesoporous Carbon: A Versatile Material for Scientific Applications

International Journal of Molecular Sciences ◽

10.3390/ijms22094498 ◽

2021 ◽

Vol 22 (9) ◽

pp. 4498

Author(s):

Md. Motiar Rahman ◽

Mst Gulshan Ara ◽

Mohammad Abdul Alim ◽

Md. Sahab Uddin ◽

Agnieszka Najda ◽

...

Keyword(s):

Mesoporous Carbon ◽

Oral Drug Delivery ◽

High Surface ◽

High Surface Area ◽

Oral Drug ◽

Energy Storage Devices ◽

Storage Devices ◽

Catalytic Support ◽

Scientific Disciplines ◽

Oral Drug Delivery System

Mesoporous carbon is a promising material having multiple applications. It can act as a catalytic support and can be used in energy storage devices. Moreover, mesoporous carbon controls body’s oral drug delivery system and adsorb poisonous metal from water and various other molecules from an aqueous solution. The accuracy and improved activity of the carbon materials depend on some parameters. The recent breakthrough in the synthesis of mesoporous carbon, with high surface area, large pore-volume, and good thermostability, improves its activity manifold in performing functions. Considering the promising application of mesoporous carbon, it should be broadly illustrated in the literature. This review summarizes the potential application of mesoporous carbon in many scientific disciplines. Moreover, the outlook for further improvement of mesoporous carbon has been demonstrated in detail. Hopefully, it would act as a reference guidebook for researchers about the putative application of mesoporous carbon in multidimensional fields.

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Cobalt-Based Metal Organic Frameworks as Solids Catalysts for Oxidation Reactions

Catalysts ◽

10.3390/catal11010095 ◽

2021 ◽

Vol 11 (1) ◽

pp. 95

Author(s):

Amarajothi Dhakshinamoorthy ◽

Eva Montero Lanzuela ◽

Sergio Navalon ◽

Hermenegildo Garcia

Keyword(s):

Aerobic Oxidation ◽

High Surface ◽

Metal Organic Frameworks ◽

High Surface Area ◽

Acid Sites ◽

Crystalline Lattice ◽

Oxidation Reactions ◽

Solid Catalysts ◽

Long Term Stability ◽

Metal Organic

Metal organic frameworks (MOFs) are porous crystalline solids whose frameworks are constituted by metal ions/nodes with rigid organic linkers leading to the formation of materials having high surface area and pore volume. One of the unique features of MOFs is the presence of coordinatively unsaturated metal sites in their crystalline lattice that can act as Lewis acid sites promoting organic transformations, including aerobic oxidation reactions of various substrates such as hydrocarbons, alcohols, and sulfides. This review article summarizes the existing Co-based MOFs for oxidation reactions organized according to the nature of substrates like hydrocarbon, alcohol, olefin, and water. Both aerobic conditions and peroxide oxidants are discussed. Emphasis is placed on comparing the advantages of using MOFs as solid catalysts with respect to homogeneous salts in terms of product selectivity and long-term stability. The final section provides our view on future developments in this field.

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Lawsone Derived Zn (II) and Fe (III) Metal Organic Frameworks with pH Dependent Emission for Controlled Drug Delivery

New Journal of Chemistry ◽

10.1039/d1nj01913a ◽

2021 ◽

Author(s):

Sirajunnisa P ◽

Liz Hannah George ◽

Narayanapillai Manoj ◽

Prathapan S ◽

G.S. Sailaja

Keyword(s):

Drug Delivery ◽

Porous Structure ◽

High Surface ◽

Metal Organic Frameworks ◽

High Surface Area ◽

Controlled Drug Delivery ◽

Sensing Applications ◽

Porous Carriers ◽

Metal Organic ◽

Ph Dependent

Fluorescent biocompatible porous carriers have been investigated as suitable probes for drug delivery and sensing applications owing to their intrinsic fluorescence and high surface area originating from their porous structure...

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