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Author : Pankaj Mohanlal Teli
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.:/5 (829 download)
Download or read book Experimental Study of Hydrogen Adsorption on Metal Organic Frameworks written by Pankaj Mohanlal Teli and published by . This book was released on 2006 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenji Sumida
Publisher :
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (919 download)
Download or read book Design and Synthesis of Metal-Organic Frameworks for Hydrogen Storage and Carbon Dioxide Capture written by Kenji Sumida and published by . This book was released on 2012 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the design and synthesis of metal-organic frameworks for applications in high-density hydrogen storage for mobile applications, and in post-combustion carbon dioxide capture from coal- or gas-fired power plants. Chapter One introduces the area of metal-organic frameworks, which are a new class of porous coordination solids, with an emphasis on the parameters requiring optimization in order to achieve applications in hydrogen storage and carbon dioxide capture. The current state-of-the-art is briefly discussed, and strategies for the development of next-generation materials exhibiting enhanced performance are presented in the context of metal-organic frameworks. Furthermore, the benefit of high-throughput technologies in the synthesis and characterization of metal-organic frameworks is also highlighted as a potential means of accelerating the discovery of high-performance materials. In Chapter Two, the synthesis and hydrogen storage properties of Be12(OH)12(BTB)4, the first metal-organic framework based on the lightest divalent metal, Be2, is described. The high surface area resulting from the use of lightweight Be2 cations leads to one of the highest gravimetric hydrogen storage densities observed at both cryogenic and ambient temperatures. Chapter Three introduces the use of a high-throughput methodology in the synthesis of an Fe2-based, sodalite-type metal-organic framework, Fe3[(Fe4Cl)3(BTT)]2 (Fe-BTT). This material features a high-density of exposed metal cation adsorption sites on the pore surface, which facilitates strong framework-H2 interactions that are close to the adsorption enthalpy considered optimal for hydrogen storage at ambient temperatures. The resulting hydrogen adsorption properties are discussed, as well as the effect of these adsorption sites on the carbon dioxide capture performance. The hydrogen storage properties of Mg2(dobdc), a lightweight metal-organic framework possessing Mg2+ adsorption sites, are studied in Chapter Four using a combination of adsorption experiments, infrared spectroscopy, and powder neutron diffraction data. The high affinity of H2 toward the exposed metal cation sites results in a high enthalpy of adsorption, which is of importance in raising the storage density at ambient temperatures. Chapter Five describes the hydrogen storage properties of Cr3(BTC)2, a metal-organic framework featuring pores decorated with Cr2+ adsorption sites. In contrast to Fe-BTT and Mg2(dobdc), the relatively diffuse nature of the Cr2+ cations results in a low adsorption enthalpy at these sites, highlighting the importance of the identity of the metal ion in controlling the thermodynamics of adsorption. Chapter Six describes a new high-throughput methodology developed for the synthesis and adsorption screening of new metal-organic frameworks for carbon dioxide capture. The use of the workflow is discussed in the context of metal-insertion reactions within the material Al(OH)(bpydc), which features one-dimensional pores lined with 2,2'-bipyridine binding sites. As will be demonstrated, the metal salt employed imparts a considerable impact on the CO2 adsorption capacity, highlighting the benefit of a high-throughput approach to materials optimization. The precise control of the opposing wall distribution within metal-organic frameworks is an important aspect in optimizing the adsorption properties for high-density storage and molecular separation applications. In Chapter Seven, a new method for geometrically calculating the wall separation distances from the single-crystal structure is described and employed in studying a variety of known structure types. In this case, the routine is used to analyze metal-organic frameworks for methane storage due to the abundance of high-pressure methane adsorption data in the literature, and it is demonstrated that the optimization of the wall separations is indeed crucial for maximizing the volumetric storage capacity in storage applications.
Author : R. G. Barnes
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.:/5 (51 download)
Download or read book Hydrogen Storage Materials written by R. G. Barnes and published by . This book was released on 1988 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ames Laboratory, Iowa, USA
Author : David S. Sholl
Publisher : John Wiley & Sons
ISBN 13 : 1118211049
Total Pages : 252 pages
Book Rating : 4.1/5 (182 download)
Download or read book Density Functional Theory written by David S. Sholl and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demonstrates how anyone in math, science, and engineering can master DFT calculations Density functional theory (DFT) is one of the most frequently used computational tools for studying and predicting the properties of isolated molecules, bulk solids, and material interfaces, including surfaces. Although the theoretical underpinnings of DFT are quite complicated, this book demonstrates that the basic concepts underlying the calculations are simple enough to be understood by anyone with a background in chemistry, physics, engineering, or mathematics. The authors show how the widespread availability of powerful DFT codes makes it possible for students and researchers to apply this important computational technique to a broad range of fundamental and applied problems. Density Functional Theory: A Practical Introduction offers a concise, easy-to-follow introduction to the key concepts and practical applications of DFT, focusing on plane-wave DFT. The authors have many years of experience introducing DFT to students from a variety of backgrounds. The book therefore offers several features that have proven to be helpful in enabling students to master the subject, including: Problem sets in each chapter that give readers the opportunity to test their knowledge by performing their own calculations Worked examples that demonstrate how DFT calculations are used to solve real-world problems Further readings listed in each chapter enabling readers to investigate specific topics in greater depth This text is written at a level suitable for individuals from a variety of scientific, mathematical, and engineering backgrounds. No previous experience working with DFT calculations is needed.
Author : Hellmut G. Karge
Publisher : Springer Science & Business Media
ISBN 13 : 3540739661
Total Pages : 411 pages
Book Rating : 4.5/5 (47 download)
Download or read book Adsorption and Diffusion written by Hellmut G. Karge and published by Springer Science & Business Media. This book was released on 2008-06-17 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Molecular Sieves - Science and Technology" covers, in a comprehensive manner, the science and technology of zeolites and all related microporous and mesoporous materials. The contributions are grouped together topically in such a way that each volume deals with a specific sub-field. Volume 7 treats fundamentals and analyses of adsorption and diffusion in zeolites including single-file diffusion. Various methods of measuring adsorption and diffusion are described and discussed.
Author : Omar M. Yaghi
Publisher : John Wiley & Sons
ISBN 13 : 3527821104
Total Pages : 684 pages
Book Rating : 4.5/5 (278 download)
Download or read book Introduction to Reticular Chemistry written by Omar M. Yaghi and published by John Wiley & Sons. This book was released on 2019-03-22 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise introduction to the chemistry and design principles behind important metal-organic frameworks and related porous materials Reticular chemistry has been applied to synthesize new classes of porous materials that are successfully used for myraid applications in areas such as gas separation, catalysis, energy, and electronics. Introduction to Reticular Chemistry gives an unique overview of the principles of the chemistry behind metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and zeolitic imidazolate frameworks (ZIFs). Written by one of the pioneers in the field, this book covers all important aspects of reticular chemistry, including design and synthesis, properties and characterization, as well as current and future applications Designed to be an accessible resource, the book is written in an easy-to-understand style. It includes an extensive bibliography, and offers figures and videos of crystal structures that are available as an electronic supplement. Introduction to Reticular Chemistry: -Describes the underlying principles and design elements for the synthesis of important metal-organic frameworks (MOFs) and related materials -Discusses both real-life and future applications in various fields, such as clean energy and water adsorption -Offers all graphic material on a companion website -Provides first-hand knowledge by Omar Yaghi, one of the pioneers in the field, and his team. Aimed at graduate students in chemistry, structural chemists, inorganic chemists, organic chemists, catalytic chemists, and others, Introduction to Reticular Chemistry is a groundbreaking book that explores the chemistry principles and applications of MOFs, COFs, and ZIFs.
Author : T. Grant Glover
Publisher : CRC Press
ISBN 13 : 0429891768
Total Pages : 523 pages
Book Rating : 4.4/5 (298 download)
Download or read book Gas Adsorption in Metal-Organic Frameworks written by T. Grant Glover and published by CRC Press. This book was released on 2018-09-03 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : David J. Fisher
Publisher : Materials Research Forum LLC
ISBN 13 : 1644900858
Total Pages : 140 pages
Book Rating : 4.6/5 (449 download)
Download or read book Carbon-Capture by Metal-Organic Framework Materials written by David J. Fisher and published by Materials Research Forum LLC. This book was released on 2020-07-05 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Organic Framework Materials (MOFs) are well suited for absorbing carbon dioxide. MOFs can form highly-porous structures with great adsorption capacities. They also offer good catalytic properties and much research refers to the relationship between catalytic performance and framework structure. In addition to simple CO2 absorption, there are other interesting applications, such as the direct electrochemical reduction into useful chemicals and fuels, the conversion of CO2 into methanol, the electrochemical reduction of CO2, or electrocatalytic hydrogen evolution (thus boosting the ‘hydrogen economy’). The book references 295 original resources and includes their direct web link for in-depth reading. Keywords: Global Warming, Carbon Dioxide Capture, Metal-Organic Frameworks MOFs, Adsorbents for CO2, Porous Solids, Catalytic Performance, Synthesis of MOFs, Conversion of CO2 into Methanol, Electrocatalytic Hydrogen Evolution, Hydrogen Economy, Gas Adsorption, Gas Separation, Organic Ligands, Metal Ion Clusters.
Author : Barbara Streppel
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (837 download)
Download or read book Hydrogen Adsorption on Metal Organic Frameworks written by Barbara Streppel and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leonard R. MacGillivray
Publisher : John Wiley & Sons
ISBN 13 : 111803516X
Total Pages : 440 pages
Book Rating : 4.1/5 (18 download)
Download or read book Metal-Organic Frameworks written by Leonard R. MacGillivray and published by John Wiley & Sons. This book was released on 2010-12-17 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-organic frameworks represent a new class of materials that may solve the hydrogen storage problem associated with hydrogen-fueled vehicles. In this first definitive guide to metal-organic framework chemistry, author L. MacGillivray addresses state-of-art developments in this promising technology for alternative fuels. Providing professors, graduate and undergraduate students, structural chemists, physical chemists, and chemical engineers with a historical perspective, as well as the most up-to-date developments by leading experts, Metal-Organic Frameworks examines structure, symmetry, supramolecular chemistry, surface engineering, metal-organometallic frameworks, properties, and reactions.
Author : Alexander Samokhvalov
Publisher : CRC Press
ISBN 13 : 1315350416
Total Pages : 204 pages
Book Rating : 4.3/5 (153 download)
Download or read book Adsorption on Mesoporous Metal-Organic Frameworks in Solution for Clean Energy, Environment and Healthcare written by Alexander Samokhvalov and published by CRC Press. This book was released on 2017-04-07 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Jianwen Jiang
Publisher : CRC Press
ISBN 13 : 9814613460
Total Pages : 572 pages
Book Rating : 4.8/5 (146 download)
Download or read book Metal-Organic Frameworks written by Jianwen Jiang and published by CRC Press. This book was released on 2015-01-28 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 rece
Author : Raj Kumar Arya
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3111247287
Total Pages : 552 pages
Book Rating : 4.1/5 (112 download)
Download or read book Sustainable Hydrogen Energy written by Raj Kumar Arya and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-05-20 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen energy is the most versatile energy source: its advantages include the minimization of pollution and land use compared to traditional fossil fuels, high energy density, and the possibility of generation using renewable sources (such as water splitting). This book focuses on the main advances and challenges in the production, storage, transportation and commercialization of hydrogen energy.
Download or read book Microporous Metal Organic Materials for Hydrogen Storage written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have examined a number of Metal Organic Framework Materials for their potential in hydrogen storage applications. Results obtained in this study may, in general, be summarized as follows: (1) We have identified a new family of porous metal organic framework materials with the compositions M (bdc) (ted){sub 0.5}, {l_brace}M = Zn or Co, bdc = biphenyl dicarboxylate and ted = triethylene diamine{r_brace} that adsorb large quantities of hydrogen ((almost equal to)4.6 wt%) at 77 K and a hydrogen pressure of 50 atm. The modeling performed on these materials agree reasonably well with the experimental results. (2) In some instances, such as in Y2(sdba)3, even though the modeling predicted the possibility of hydrogen adsorption (although only small quantities, (almost equal to)1.2 wt%, 77 K, 50 atm. hydrogen), our experiments indicate that the sample does not adsorb any hydrogen. This may be related to the fact that the pores are extremely small or may be attributed to the lack of proper activation process. (3) Some samples such as Zn (tbip) (tbip = 5-tert butyl isophthalate) exhibit hysteresis characteristics in hydrogen sorption between adsorption and desorption runs. Modeling studies on this sample show good agreement with the desorption behavior. It is necessary to conduct additional studies to fully understand this behavior. (4) Molecular simulations have demonstrated the need to enhance the solid-fluid potential of interaction in order to achieve much higher adsorption amounts at room temperature. We speculate that this may be accomplished through incorporation of light transition metals, such as titanium and scandium, into the metal organic framework materials.
Author : Moises A Carreon
Publisher : World Scientific
ISBN 13 : 1786346745
Total Pages : 283 pages
Book Rating : 4.7/5 (863 download)
Download or read book Metal-organic Framework Membranes For Molecular Gas Separations written by Moises A Carreon and published by World Scientific. This book was released on 2020-07-30 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique compendium describes research progress on metal-organic framework (MOF) membranes for different relevant industrial gas separations. Specifically, the book focuses mainly on gas separations which are important in flue gas treatment, natural gas purification, hydrogen purification, and nuclear reprocessing. The advantages of using MOFs in mixed matrix membranes are discussed. Some of the pressing challenges in the field, and strategies to potentially overcome them are also distinctly outlined.This volume is a useful reference materials for professionals, academics, researchers and postgraduate students in chemical engineering and materials engineering.
Author : Ingrid Zaiser
Publisher : Cuvillier Verlag
ISBN 13 : 3736983778
Total Pages : 200 pages
Book Rating : 4.7/5 (369 download)
Download or read book Helium and Hydrogen Isotope Adsorption and Separation in Metal-Organic Frameworks written by Ingrid Zaiser and published by Cuvillier Verlag. This book was released on 2016-10-31 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The separation of isotopes has always been a challenge because of their identical size, shape and thermodynamic properties. Nowadays, the extraction of deuterium is performed e.g. by the Girdler Sulfid process or cryogenic distillation, which lead to low separation factors (below 2.5) in combination with high energy costs. The standard way to produce helium-3 is to skim it as a byproduct of the radioactive tritium decay. In this thesis, two alternative approaches have been investigated for the separation of light isotopes, Quantum Sieving and Chemical Affinity Sieving . While Quantum Sieving is based on confinement in small pores, Chemical Affinity Sieving relies on strong adsorption sites. Both methods use the mass difference of the isotopes, which is related to their zero-point energy. The microporous metal-organic frameworks are excellent candidates for studying these quantum effects due to their well-defined pore structure and the possibility to introduce strong adsorption sites directly into the framework. The samples have been exposed to an isotope mixture and the adsorbed quantity of each isotope was detected by low-temperature thermal desorption spectroscopy (TDS). The ratio of the desorbed amount of the isotopes leads directly to the selectivity (separation factor). The selectivity is determined as a function of exposure time and temperature and exhibits the highest value of 25 observed for hydrogen isotopes at temperatures well above the boiling point of liquid nitrogen.
Author : Xian-He Bu
Publisher : Springer Nature
ISBN 13 : 3030473406
Total Pages : 426 pages
Book Rating : 4.0/5 (34 download)
Download or read book Metal-Organic Framework written by Xian-He Bu and published by Springer Nature. This book was released on 2020-05-28 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience.Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
