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Metal Organic Frameworks Mofs For Environmental Applications

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Metal Organic Frameworks MOFs for Environmental Applications

Metal Organic Frameworks  MOFs  for Environmental Applications Book
Author : Sujit K. Ghosh
Publisher : Elsevier
Release : 2019-06-07
ISBN : 0128146346
Language : En, Es, Fr & De

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Book Description :

Metal-Organic Frameworks for Environmental Applications examines this important topic, looking at potential materials and methods for the remediation of pressing pollution issues, such as heavy-metal contaminants in water streams, radioactive waste disposal, marine oil-spillage, the treatment of textile and dye industry effluents, the clean-up of trace amounts of explosives in land and water, and many other topics. This survey of the cutting-edge research and technology of MOFs is an invaluable resource for researchers working in inorganic chemistry and materials science, but it is also ideal for graduate students studying MOFs and their applications. Examines the applications of metal-organic frameworks for the remediation of environmental pollutants Features leading experts who research the applications of MOFs from around the world, including contributions from the United States, India and China Explores possible solutions to some of today’s most pressing environmental challenges, such as heavy-metal contamination in bodies of water, oil spills and clean-up of explosives hidden in land and water Provides an excellent reference for researchers and graduate students studying in the areas of inorganic chemistry, materials chemistry and environmental science

Metal Organic Frameworks in Biomedical and Environmental Field

Metal Organic Frameworks in Biomedical and Environmental Field Book
Author : Patricia Horcajada Cortés,Sara Rojas Macías
Publisher : Springer
Release : 2021-04-25
ISBN : 9783030633790
Language : En, Es, Fr & De

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Book Description :

This book joins an international and interdisciplinary group of leading experts on the biomedical, energy and environmental applications of Metal-Organic Frameworks (MOFs). The resulting overview covers everything from the environmentally friendly and scale up synthesis of MOFs, their application in green energy generation and storage, and water purification to their use as drug delivery systems, biosensors, and their association with relevant macromolecules (genes, enzymes). This book is focused on the interest of MOFs in applications such as the leading –edge environmental (energy-related) and biomedical fields. The potential of MOFs in these areas is currently progressing at a fast pace, since the wide possibilities that MOFs offer in terms of composition, topology, incorporation of active species (in their porosity, on their external surface or within the framework), and post-synthetic modifications, among others. The aim here is to provide future research goals that emphasize relevant nuances to this class of materials as a whole.

Elaboration And Applications Of Metal organic Frameworks

Elaboration And Applications Of Metal organic Frameworks Book
Author : Ma Shengqian,Perman Jason A
Publisher : World Scientific
Release : 2018-01-29
ISBN : 9813226749
Language : En, Es, Fr & De

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Book Description :

Download Elaboration And Applications Of Metal organic Frameworks book written by Ma Shengqian,Perman Jason A, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Emerging Applications and Implementations of Metal Organic Frameworks

Emerging Applications and Implementations of Metal Organic Frameworks Book
Author : Elsaeed, Shimaa Mohamed,Zaki, Elsayed,Abdel-Azim, Abdel-Azim
Publisher : IGI Global
Release : 2021-03-18
ISBN : 1799847616
Language : En, Es, Fr & De

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Book Description :

Metal-organic frameworks (MOFs) are some of the most discussed materials of the last decade. Their extraordinary porosity and functionality from metals and organic linkers make them one of the most promising materials for a vast array of applications. The easy tunability of their pore size and shape from the micro- to meso-scale by changing the connectivity of the inorganic moiety and the nature of the organic linkers makes these materials special. Moreover, by combining with other suitable materials, the properties of MOFs can be improved further for enhanced functionality/stability, ease of preparation, and selectivity of operation. Emerging Applications and Implementations of Metal-Organic Frameworks combines the latest empirical research findings with relevant theoretical frameworks in this area in order to improve the reader’s understanding of MOFs and their different applications in areas that include drug delivery, heavy metal removal from water, and gas storage. The design and synthesis of MOFs are also investigated along with the preparation of composites of MOFs. While covering applications that include water defluoridation, rechargeable batteries, and pharmaceutically adapted drug delivery systems, the book’s target audience is comprised of professionals, researchers, academicians, and students working in the field of physical and polymer chemistry, physics, engineering science, and environmental science.

Metal Organic Frameworks

Metal Organic Frameworks Book
Author : Lars Öhrström,Francoise M. Amombo Noa
Publisher : American Chemical Society
Release : 2021-03-25
ISBN : 0841299048
Language : En, Es, Fr & De

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Book Description :

Some 80,000 metal-organic frameworks (MOFs) have been reported as of 2020. With intriguing structures and fascinating properties, MOFs are poised to be a defining material of the 21st century with a great deal of commercial potential from methane fuel automobile tanks to carbon capturing. Metal-Organic Frameworks provides an introduction to the complex world of MOFs. Researchers new to MOFs can use this work as a jumping-off point for theoretical study or applied research. The work is broad and expansive in scope, but inclusive and comprehensive in detail. The authors provide a personal perspective of MOF research that provides a strong foundation in the basic methods and themes as well as directs the reader in how to think about MOFs. Sixteen MOF structures are animated, providing more clarity into the dimensionality of MOFs. Accompanying links take the reader to additional 3-D structures provided by The Cambridge Crystallographic Data Centre (CCDC).

Metal Organic Framework Composites

Metal Organic Framework Composites Book
Author : Anish Khan
Publisher : Materials Research Forum LLC
Release : 2019-07-20
ISBN : 1644900289
Language : En, Es, Fr & De

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Book Description :

Composites based on Metal-organic frameworks (MOFs) have exceptional physical and chemical properties and offer a great number of advanced applications in such fields as energy storage, energy conversion by catalysis, sensors for environmental applications, environment safety and industrial wastewater treatments. They also have interesting medical applications, such as encapsulation of enzymes. The present book covers design, synthesis and preparation of various MOFs, as well as the resulting product characteristics: homogenous morphology, small size dispersion, high thermal stability and desired surface area.

Applications of Metal Organic Frameworks and Their Derived Materials

Applications of Metal Organic Frameworks and Their Derived Materials Book
Author : Inamuddin,Rajender Boddula,Mohd Imran Ahamed,Abdullah M. Asiri
Publisher : John Wiley & Sons
Release : 2020-06-10
ISBN : 1119650984
Language : En, Es, Fr & De

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Book Description :

Metal–organic frameworks (MOFs) are porous crystalline polymers con­structed by metal sites and organic building blocks. Since the discovery of MOFs in the 1990s, they have received tremendous research attention for various applications due to their high surface area, controllable mor­phology, tunable chemical properties, and multifunctionalities, including MOFs as precursors and self-sacrificing templates for synthesizing metal oxides, heteroatom-doped carbons, metal-atoms encapsulated carbons, and others. Thus, awareness and knowledge about MOFs and their derived nanomaterials with conceptual understanding are essential for the advanced material community. This breakthrough new volume aims to explore down-to-earth applications in fields such as bio­medical, environmental, energy, and electronics. This book provides an overview of the structural and fundamental properties, synthesis strate­gies, and versatile applications of MOFs and their derived nanomaterials. It gives an updated and comprehensive account of the research in the field of MOFs and their derived nanomaterials. Whether as a reference for industry professionals and nanotechnologists or for use in the classroom for graduate and postgraduate students, faculty members, and research and development specialists working in the area of inorganic chemistry, materials science, and chemical engineering, this is a must-have for any library.

Metal Organic Frameworks

Metal Organic Frameworks Book
Author : Jianwen Jiang
Publisher : CRC Press
Release : 2015-01-28
ISBN : 9814613460
Language : En, Es, Fr & De

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Book Description :

Metal-organic frameworks (MOFs) have emerged as a new family of nanoporous materials. With an enormous choice of inorganic/organic building blocks, MOFs possess a wide range of surface area, pore size, and functionality and, thus, have been considered versatile materials for many potential applications. This book presents a broad collection of recent modeling studies in the field of MOFs toward potential engineering applications, such as gas storage/separation, carbon capture, catalysis, water purification, and drug delivery. The subject of this book renders it unique, for while the various topics on MOFs boast vast literature, there is not yet a single coherent collection for modeling endeavors. The book will appeal to scientists, engineers, and students in the multidisciplinary intersections of materials science, chemistry, and engineering.

Gas Adsorption in Metal Organic Frameworks

Gas Adsorption in Metal Organic Frameworks Book
Author : T. Grant Glover,Bin Mu
Publisher : CRC Press
Release : 2018-09-03
ISBN : 0429891768
Language : En, Es, Fr & De

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Book Description :

This text discusses the synthesis, characterization, and application of metal-organic frameworks (MOFs) for the purpose of adsorbing gases. It provides details on the fundamentals of thermodynamics, mass transfer, and diffusion that are commonly required when evaluating MOF materials for gas separation and storage applications and includes a discussion of molecular simulation tools needed to examine gas adsorption in MOFs. Additionally, the work presents techniques that can be used to characterize MOFs after gas adsorption has occurred and provides guidance on the water stability of these materials. Lastly, applications of MOFs are considered with a discussion of how to measure the gas storage capacity of MOFs, a discussion of how to screen MOFs to for filtration applications, and a discussion of the use of MOFs to perform industrial separations, such as olefin/paraffin separations. Throughout the work, fundamental information, such as a discussion on the calculation of MOF surface area and description of adsorption phenomena in packed-beds, is balanced with a discussion of the results from research literature.

Adsorption on Mesoporous Metal Organic Frameworks in Solution for Clean Energy Environment and Healthcare

Adsorption on Mesoporous Metal Organic Frameworks in Solution for Clean Energy  Environment and Healthcare Book
Author : Alexander Samokhvalov
Publisher : CRC Press
Release : 2017-04-07
ISBN : 1315350416
Language : En, Es, Fr & De

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Book Description :

Adsorption and desorption in solution play significant roles in separations, detoxification of waste streams, in purification, chromatography, heterogeneous catalysis, metabolism of medicinal drugs, and beyond. Metal-Organic Frameworks (MOFs) are well-ordered 3-dimensional hybrid organic-inorganic polymers which contain metal cations and the structure-building organic "linker" units. Mesoporous MOFs with pore sizes 2-50 nm are particularly suitable for adsorption and adsorption-based separations of large molecules of organic and bio-organic compounds. Thousands of organic compounds and, in particular, aromatic and heterocyclic compounds are widely used as feedstock for industrial chemical synthesis, as fine chemicals, major components of liquid fossil fuels, dyestuffs, industrial solvents, agricultural chemicals, medicinal drugs, pharmaceuticals and personal care products (PPCPs), and active pharmaceutical ingredients (APIs). There is a strong interest towards synthesis, characterization and studies of both known and newly synthesized mesoporous MOFs for adsorption in solution to achieve the high adsorption capacity, selectivity, and the possibility of multiple regeneration of "spent" sorbent. This book covers experimental fundamental research on using mesoporous MOFs in emerging applications of major industrial, environmental and academic importance, especially purification of water and liquid fossil fuels and in advanced biomedical technologies.

Metal Organic Frameworks and Their Applications in Hydrogen and Oxygen Evolution Reactions

Metal Organic Frameworks and Their Applications in Hydrogen and Oxygen Evolution Reactions Book
Author : Fengxiang Yin
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) play a vital role in many energy storage and conversion systems, including water splitting, rechargeable metal-air batteries, and the unitized regenerative fuel cells. The noble-metal catalysts based on Pt, Ir, and Au are the best electrocatalysts for the HER/OER, but they suffer from high price and scarcity problems. Therefore, it is urgently necessary to develop efficient, low-cost, and environment-friendly non-noble metal electrocatalysts. Metal-organic frameworks (MOFs) are crystalline materials with porous network structure. MOFs possess various compositions, large specific surface area, tunable pore structures, and they are easily functionalized. MOFs have been widely studied and applied in many fields, such as gas adsorption/separation, drug delivery, catalysis, magnetism, and optoelectronics. Recently, MOFs-based electrocatalysts for HER/OER have been rapidly developed. These MOFs-based catalysts exhibit excellent catalytic performance for HER/OER, demonstrating a promising application prospect in HER/OER. In this chapter, the concept, structure, category, and synthesis of MOFs will be first introduced briefly. Then, the applications of the MOFs-based catalysts for HER/OER in recent years will be discussed in details. Specially, the synthesis, structure, and catalytic performance for HER/OER of the MOFs-based catalysts will be emphatically discussed.

Metal Organic Frameworks for Chemical Reactions

Metal Organic Frameworks for Chemical Reactions Book
Author : Anish Khan,Francis Verpoort,Abdullah M. Asiri,Md Enamul Hoque,Anwar L. Bilgrami,Mohammad Azam,Kadiyala Chandra Babu Naidu
Publisher : Elsevier
Release : 2021-01-19
ISBN : 0128232625
Language : En, Es, Fr & De

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Book Description :

Metal-Organic Frameworks for Chemical Reactions: From Organic Transformations to Energy Applications brings together the latest information on MOFs materials, covering recent technology in the field of manufacturing and design. The book covers different aspects of reactions from energy storage and catalysts, including preparation, design and characterization techniques of MOFs material and applications. This comprehensive resource is ideal for researchers and advanced students studying metal-organic frameworks in academia and industry. Metal-organic frameworks (MOFs) are nanoporous polymers made up of inorganic metal focuses connected by natural ligands. These entities have become a hot area of research because of their exceptional physical and chemical properties that make them useful in different fields, including medicine, energy and the environment. Since combination conditions strongly affect the properties of these compounds, it is especially important to choose an appropriate synthetic technique that produces a product with homogenous morphology, small size dispersion, and high thermal stability. Covers the synthetic advantages and versatile applications of metal-organic frameworks (MOFs) due to their organic-inorganic hybrid nature and unique porous structure Includes energy applications such as batteries, fuel storage, fuel cells, hydrogen evaluation reactions and super capacitors Features information on using MOFs as a replacement to conventional engineering materials because they are lightweight, less costly, environmentally-friendly and sustainable

Photocatalytic Functional Materials for Environmental Remediation

Photocatalytic Functional Materials for Environmental Remediation Book
Author : Alagarsamy Pandikumar,Kandasamy Jothivenkatachalam
Publisher : John Wiley & Sons
Release : 2019-07-11
ISBN : 1119529840
Language : En, Es, Fr & De

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Book Description :

A comprehensive volume on photocatalytic functional materials for environmental remediation As the need for removing large amounts of pollution and contamination in air, soil, and water grows, emerging technologies in the field of environmental remediation are of increasing importance. The use of photocatalysis—a green technology with enormous potential to resolve the issues related to environmental pollution—breaks down toxic organic compounds to mineralized products such as carbon dioxide and water. Due to their high performance, ease of fabrication, long-term stability, and low manufacturing costs, photofunctional materials constructed from nanocomposite materials hold great potential for environmental remediation. Photocatalytic Functional Materials for Environmental Remediation examines the development of high performance photofunctional materials for the treatment of environmental pollutants. This timely volume assembles and reviews a broad range of ideas from leading experts in fields of chemistry, physics, nanotechnology, materials science, and engineering. Precise, up-to-date chapters cover both the fundamentals and applications of photocatalytic functional materials. Semiconductor-metal nanocomposites, layered double hydroxides, metal-organic frameworks, polymer nanocomposites, and other photofunctional materials are examined in applications such as carbon dioxide reduction and organic pollutant degradation. Providing interdisciplinary focus to green technology materials for the treatment of environmental pollutants, this important work: Provides comprehensive coverage of various photocatalytic materials for environmental remediation useful for researchers and developers Encompasses both fundamental concepts and applied technology in the field Focuses on novel design and application of photocatalytic materials used for the removal of environmental contaminates and pollution Offers in-depth examination of highly topical green-technology solutions Presents an interdisciplinary approach to environmental remediation Photocatalytic Functional Materials for Environmental Remediation is a vital resource for researchers, engineers, and graduate students in the multi-disciplinary areas of chemistry, physics, nanotechnology, environmental science, materials science, and engineering related to photocatalytic environmental remediation.

Metal Organic Frameworks

Metal Organic Frameworks Book
Author : Victoria Samanidou,Eleni Deliyanni
Publisher : MDPI
Release : 2020-03-27
ISBN : 303928486X
Language : En, Es, Fr & De

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Book Description :

Metal–organic frameworks are among the most promising novel materials. The concept of MOFs was first introduced in 1990. They were actually initially used in catalysis, gas separation, membranes, electrochemical sensors. Later on, they were introduced as SPE sorbents for PAHs (Polycyclic Aromatic Hydrocarbons) in environmental water samples, then the range expanded to the field of analytical chemistry, both in chromatographic separation and sample preparation, with great success in, e.g., SPE and SPME (Solid Phase Mico-extraction). Since then, the number of analytical applications implementing MOFs as sorbents in sorptive sample preparation approaches is increasing. Τhis is reinforced by the fact that, at least theoretically, an infinite number of structures can be designed and synthesized, thus making tuneability one of the most unique characteristics of MOF materials. Moreover, they have been designed in various shapes, such as columns, fibers, and films, so that they can meet more analytical challenges with improved analytical features.Their exceptional properties attracted the interest of analytical chemists who have taken advantage of the unique structures and properties and have already introduced them in several sample pretreatment techniques, such as solid phase extraction, dispersive SPE, magnetic solid phase extraction, solid phase microextraction, stir bar sorptive extraction, etc.

Porous Materials

Porous Materials Book
Author : Juan Carlos Moreno-Piraján
Publisher : Springer Nature
Release : 2021-05-15
ISBN : 3030659917
Language : En, Es, Fr & De

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Book Description :

Download Porous Materials book written by Juan Carlos Moreno-Piraján, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Materials and Processes for CO2 Capture Conversion and Sequestration

Materials and Processes for CO2 Capture  Conversion  and Sequestration Book
Author : Lan Li,Winnie Wong-Ng,Kevin Huang,Lawrence P. Cook
Publisher : John Wiley & Sons
Release : 2018-08-14
ISBN : 1119231035
Language : En, Es, Fr & De

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Book Description :

Addresses materials, technology, and products that could help solve the global environmental crisis once commercialized This multidisciplinary book encompasses state-of-the-art research on the topics of Carbon Capture and Storage (CCS), and complements existing CCS technique publications with the newest research and reviews. It discusses key challenges involved in the CCS materials design, processing, and modeling and provides in-depth coverage of solvent-based carbon capture, sorbent-based carbon capture, membrane-based carbon capture, novel carbon capture methods, computational modeling, carbon capture materials including metal organic frameworks (MOF), electrochemical capture and conversion, membranes and solvents, and geological sequestration. Materials and Processes for CO2 Capture, Conversion and Sequestration offers chapters on: Carbon Capture in Metal-Organic Frameworks; Metal Organic Frameworks Materials for Post-Combustion CO2 Capture; New Progress of Microporous Metal-Organic Frameworks in CO2 Capture and Separation; In Situ Diffraction Studies of Selected Metal-Organic Framework (MOF) Materials for Guest Capture Applications; Electrochemical CO2 Capture and Conversion; Electrochemical Valorization of Carbon Dioxide in Molten Salts; Microstructural and Structural Characterization of Materials for CO2 Storage using Multi-Scale X-Ray Scattering Methods; Contribution of Density Functional Theory to Microporous Materials for Carbon Capture; and Computational Modeling Study of MnO2 Octahedral Molecular Sieves for Carbon Dioxide Capture Applications. Addresses one of the most pressing concerns of society—that of environmental damage caused by the greenhouse gases emitted as we use fossil fuels Covers cutting-edge capture technology with a focus on materials and technology rather than regulation and cost Highlights the common and novel CCS materials that are of greatest interest to industrial researchers Provides insight into CCS materials design, processing characterization, and computer modeling Materials and Processes for CO2 Capture, Conversion and Sequestration is ideal for materials scientists and engineers, energy scientists and engineers, inorganic chemists, environmental scientists, pollution control scientists, and carbon chemists.

Pore Environment Engineering with Multiple Metal Sites in Rare Earth Porphyrinic Metal Organic Frameworks

Pore   Environment Engineering with Multiple Metal Sites in Rare   Earth Porphyrinic Metal   Organic Frameworks Book
Author : Anonim
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Abstract: Multi‐component metal–organic frameworks (MOFs) with precisely controlled pore environments are highly desired owing to their potential applications in gas adsorption, separation, cooperative catalysis, and biomimetics. A series of multi‐component MOFs, namely PCN‐900(RE), were constructed from a combination of tetratopic porphyrinic linkers, linear linkers, and rare‐earth hexanuclear clusters (RE6 ) under the guidance of thermodynamics. These MOFs exhibit high surface areas (up to 2523 cm 2 g −1 ) and unlimited tunability by modification of metal nodes and/or linker components. Post‐synthetic exchange of linear linkers and metalation of two organic linkers were realized, allowing the incorporation of a wide range of functional moieties. Two different metal sites were sequentially placed on the linear linker and the tetratopic porphyrinic linker, respectively, giving rise to an ideal platform for heterogeneous catalysis.

Metal Organic Framework Nanocomposites

Metal Organic Framework Nanocomposites Book
Author : Anish Khan,Mohammad Jawaid,Abdullah Mohammed Ahmed Asiri,Wei Ni,Mohammed Muzibur Rahman
Publisher : CRC Press
Release : 2020-11-24
ISBN : 1000244865
Language : En, Es, Fr & De

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Book Description :

Metal-Organic Framework Nanocomposites: From Design to Application assembles the latest advances in MOF nanocomposites, emphasizing their design, characterization, manufacturing, and application and offering a wide-ranging view of these materials with exceptional physical and chemical properties. FEATURES Discusses various types of MOF materials, such as polyaniline MOF nanocomposites, magnetic MOF nanocomposites, and carbon nanotube-based MOF nanocomposites Includes chapters on the usage of these materials in pollutant removal, electrochemical devices, photocatalysts, biomedical applications, and other applications Covers different aspects of composite fabrication from energy storage and catalysts, including preparation, design, and characterization techniques Emphasizes the latest technology in the field of manufacturing and design Aimed at researchers, academics, and advanced students in materials science and engineering, this book offers a comprehensive overview and analysis of these extraordinary materials.

Hydrogen Physisorptive Storage in Metal organic Frameworks MOFs

Hydrogen Physisorptive Storage in Metal organic Frameworks  MOFs  Book
Author : Tshiamo Segakweng
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Generation of power from fossil fuels produces large amounts of carbon dioxide which is a major contributor to global warming and many other environmental problems. Alternative sources of energy are available but fossil fuels remain the main source of energy for on-board energy generation. One alternative source that has gained great popularity in recent years has been hydrogen. The characteristics which it possesses make it an ideal alternative to fossil fuels for on-board energy generation and also for stationary (portable) power applications. Widespread use of hydrogen as an energy carrier can only be realised once a reliable storage method which is safe and affordable becomes available. Such a storage medium should have sufficient hydrogen storage capacity, fast kinetics, and be capable of delivering hydrogen gas to a fuel cell at ambient or near-ambient conditions. This study investigated the storage of hydrogen using metal-organic frameworks (MOFs). MOFs are a class of porous inorganic-organic crystalline materials that store hydrogen by adsorption. What makes MOFs such an attractive option for hydrogen storage is that they have exceptionally high surface areas and porosity, as well as tunable pore sizes and internal surfaces. MOFs have provided successful hydrogen storage at cryogenic temperatures (77 K) and a major challenge is to reach high storage capacities at ambient temperatures and acceptable pressures. The HySA Infrastructure Centre of Competence (CoC), one of three centres of competence established by the Department of Science and Technology (DST) to implement the National Hydrogen and Fuel Cells Strategy, is tasked with R&D on hydrogen generation, storage and distribution. A major part of the hydrogen storage R&D is the development of MOFs for hydrogen storage with the ultimate aim of using the developed MOFs for practical applications, including fuel cell vehicles and portable power applications, using metals that promote the beneficiation of South African mineral resources. The MOFs that were investigated in this study are zinc-based MOF (Zn-MOF, MOF-5), zirconium-based MOF (Zr-MOF, UiO-66) and chromium-based MOF (Cr-MOF, MIL-101). These MOFs were chosen because they were envisaged as potential hydrogen storage options. MOF-5 in particular was seen as an ideal starting point for this study as it has been reported to have high surface area, permanent porosity, good thermal stability and a high synthetic yield. In addition, MOF-5 is amongst the most widely investigated MOFs for hydrogen storage. In this study, MOF-5 with high crystallinity and good morphology was synthesised using either N,N-diethylformamide (DEF) or dimethylformamide (DMF) as solvent. As DMF is a cheaper solvent than DEF the synthesis conditions were optimised for the DMF-synthesised MOF-5 and detailed analyses performed. It was discovered at some point that MOF-69c was produced as a product instead of MOF-5. Successful transition from MOF-69c to MOF-5 was achieved by employing a simple heat treatment. Due to the moisture sensitivity of MOF-5 which results from the weak interaction of Zn metal with O atoms in the framework, MOF-5 and other MOFs with different metal centres were synthesised in an attempt to overcome the moisture sensitivity problem. This led to the investigation of Zr-MOF (UiO-66) as it had the best results and had been reported to be moisture stable. Zr-MOF was synthesised using a solvothermal synthesis procedure and a microwave-assisted synthesis approach. The solvothermal synthesis was optimised using formic acid as a modulator and the microwave-assisted synthesis provided a rapid synthesis technique. The optimised synthesis produced octahedral-shaped Zr-MOF crystals of high crystallinity, with excellent moisture and thermal stability. As the synthesis of MOF-5 and Zr-MOF employed DMF, an environmentally harsh solvent, the need to pursue a greener MOF synthesis led to the investigation of Cr-MOF (MIL-101). A successful modulated synthesis of Cr-MOF using formic acid instead of HF as modulator, and water as the reaction solvent was achieved. The synthesised MOFs were characterised and their hydrogen adsorption capacity measured at 77 K and at pressures up to 1 bar. It was found that MOF-5 had a maximum hydrogen uptake of 1.60 wt% (DEF-synthesised MOF-5) and 1.40 wt% (DMF-synthesised MOF-5) whilst MOF-69c had a maximum uptake of 1.90 wt%. Zr-MOF had a maximum hydrogen uptake of 1.50 wt% and a maximum hydrogen uptake of 1.92 wt% was achieved for the Cr-MOF. Hydrogen uptake was found to be related to the quality of the MOF crystals and also directly related to the surface area, pore volume and/or pore size of the particular MOF.

Material and Environmental Science Building Engineering Biomedical and Bioinformatics Technologies

Material and Environmental Science  Building Engineering  Biomedical and Bioinformatics Technologies Book
Author : H.W. Liu
Publisher : Trans Tech Publications Ltd
Release : 2013-09-04
ISBN : 3038261890
Language : En, Es, Fr & De

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Book Description :

Collection of selected, peer reviewed papers from the 2013 International Conference on Advanced Engineering Materials and Architecture Science (ICAEMAS 2013), July 27-28, 2013, Xi’an, Shaanxi, China. The 163 papers are grouped as follows: Chapter 1: Material Science and Engineering; Chapter 2: Civil Engineering, Building and Construction Materials and Technologies, Architecture and Geo-engineering Applications; Chapter 3: Transportation and Traffic Engineering, Environmental Engineering, Urban and Landscape Planning; Chapter 4: Biomedical, Bioinformatics, Biology Systems and Medical Informatics; Chapter 5: Automation Methods in Industry and Manufacture, Modelling and Analysis; Chapter 6: Computing and Information Science; Chapter 7: Management Engineering.