The Preparation And Properties Of Acid Catalyzed Silica Aerogel
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The Preparation And Properties Of Acid Catalyzed Silica Aerogel
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Author : William J. Schmitt
language : en
Publisher:
Release Date : 1982
The Preparation And Properties Of Acid Catalyzed Silica Aerogel written by William J. Schmitt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Colloids categories.
The Preparation And Properties Of Acid Catalyzed Silica Aerogels
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Author : William J. Schmitt
language : en
Publisher:
Release Date : 1982
The Preparation And Properties Of Acid Catalyzed Silica Aerogels written by William J. Schmitt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Aerogels I
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Author : Inamuddin
language : en
Publisher: Materials Research Forum LLC
Release Date : 2020-11-15
Aerogels I written by Inamuddin and has been published by Materials Research Forum LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-15 with Technology & Engineering categories.
This book focuses on aerogels and their applications in such areas as energy storage, thermal storage, catalysis, water splitting and environmental remediation. The materials covered include nanocellulose-, porous-, silica-, hybrid silica-, carbon-, graphene- and magnetic aerogels. Ways of modulating the pore structure of aerogels are presented, as well as surface modifications and the application of coatings. Future perspectives focus on functional foods, thickeners, stabilizers, and scaffolding in tissue repair. Keywords: Aerogels, Nanocellulose Aerogels, Non-Silicate Aerogels, Organic Aerogels, Composite Hybrid Aerogels, Carbon-based and Graphene-based Aerogels, Biogels, Hybrid Silica-based Aerogels, Energy Storage, Thermal Storage, Catalysis, Water Splitting, Environmental Remediation, Absorbents, Gas Filters, Packaging Materials, Electrical Devices, Thermal Insulations, Fire Retardants, Pharmaceutical and Biomedical Applications, Functional Foods, Thickeners, Stabilizers, Scaffolding in Tissue Repair.
Aerogels Ii
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Author : Inamuddin
language : en
Publisher: Materials Research Forum LLC
Release Date : 2021-04-20
Aerogels Ii written by Inamuddin and has been published by Materials Research Forum LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-20 with Technology & Engineering categories.
The book focuses on aerogels for biomedical applications, thermal insulation, energy storage, fuel cells, batteries and environmental remediation. Keywords: Aerogels, Biomedical Applications, Implantable Devices, Tissue Engineering, Bone Regeneration, Biosensing, Pharmacological Applications, Catalysts, Water Purification, Pesticides, Thermal Insulation, Energy Storage, Fuel Cells, Batteries, Environmental Remediation, Polymer Aerogels, Bioaerogels, Carbon-based Aerogels.
Springer Handbook Of Aerogels
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Author : Michel A. Aegerter
language : en
Publisher: Springer Nature
Release Date : 2023-10-01
Springer Handbook Of Aerogels written by Michel A. Aegerter and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-01 with Technology & Engineering categories.
This indispensable handbook provides comprehensive coverage of the current state-of-the-art in inorganic, organic, and composite aerogels – from synthesis and characterization to cutting-edge applications and their potential market impact. Built upon Springer’s successful Aerogels Handbook published in 2011, this handbook features extensive revisions and timely updates, reflecting the changes in this fast-growing field. Aerogels are the lightest solids known to man. Up to 1000 times lighter than glass and with a density only four times that of air, they possess extraordinarily high thermal, electrical, and acoustic insulation properties, and boast numerous entries in Guinness World Records. Originally based on silica, R&D efforts have extended this class of materials to incorporate non-silicate inorganic oxides, natural and synthetic organic polymers, carbon, metal, and ceramic materials. Composite systems involving polymer-crosslinked aerogels and interpenetrating hybrid networks have been developed and exhibit remarkable mechanical strength and flexibility. Even more exotic aerogels based on clays, chalcogenides, phosphides, quantum dots, and biopolymers such as chitosan are opening new applications for the construction, transportation, energy, defense and healthcare industries. Applications in electronics, chemistry, mechanics, engineering, energy production and storage, sensors, medicine, nanotechnology, military and aerospace, oil and gas recovery, thermal insulation, and household uses are being developed. Readers of this fully updated and expanded edition will find an exhaustive source for all aerogel materials known today, their fabrication, upscaling aspects, physical and chemical properties, and the most recent advances towards applications and commercial use. This key reference is essential reading for a combined audience of graduate students, academic researchers, and industry professionals.
Advances In Aerogel Composites For Environmental Remediation
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Author : Aftab Aslam Parwaz Khan
language : en
Publisher: Elsevier
Release Date : 2021-05-29
Advances In Aerogel Composites For Environmental Remediation written by Aftab Aslam Parwaz Khan and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-29 with Science categories.
Advances in Aerogel Composites for Environmental Remediation presents both contextual information aboutaerogels and details about their application in environmental remediation. A wide variety of aerogels are discussed, rangingfrom common to advanced and from natural to synthetic. By exploring ongoing research and developments in the environmentalremediation technologies using aerogel and its composites, this book addresses common day-to-day environmental problemsand presents solutions to the use of aerogel materials. The chapters discuss fabrication of various aerogel composites, alongwith their design and applications toward different environmental remediation technologies. Additionally, the properties andadvantages of aerogels are compared and contrasted to those of traditional materials. Given the consistent increase in environmental pollution, there is an urgent need to explore new materials for advances in remediationtechnology. Advances in Aerogel Composites for Environmental Remediation brings researchers and practitionersin the fields of environmental remediation, environmental science, and engineering to the forefront of remediation technologieswith a thorough breakdown of the benefits of and techniques relevant to aerogel composites. Covers basic properties, unique properties, and fabrication techniques of aerogels, from basic silica aerogels topresent-day conventional aerogels Discusses most of the major environmental remediation techniques and the advantages of using aerogels for theseremediation techniques in comparison to using traditional methods Presents future prospects for utilizing aerogels in modern day-to-day life and in the fabrication of tangible new products
Properties And Structures Of Sulfonated Syndiotactic Polystyrene Aerogel And Syndiotactic Polystyrene Silica Hybrid Aerogel
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Author : Huan Zhang (Polymer engineer)
language : en
Publisher:
Release Date : 2014
Properties And Structures Of Sulfonated Syndiotactic Polystyrene Aerogel And Syndiotactic Polystyrene Silica Hybrid Aerogel written by Huan Zhang (Polymer engineer) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Aerogels categories.
This study focuses on hybrid aerogels of syndiotactic polystyrene (sPS) and silica where silica concentration is varied and silica condensation conditions are varied to produce various mesoporous materials. In addition, the study investigates hybrid materials obtained by coating sulfonated syndiotactic polystyrene on a cellulose filter paper. In first part of this study, syndiotactic polystyrene is modified by sulfonation to enable further chemical modifications. Specifically, sulfonated syndiotactic polystyrene (ssPS) is coated on macroporous cellulose filter paper using a dip coating process, ssPS is turned into gel by thermoreversible gelation, and finally aniline is polymerized on ssPS strands to obtain a hybrid aerogel with electrical conductivity. The aerogels are recoved by removing the solvents under supercritical conditions. The ssPS aerogels are coated on cellulose filter materials to derive two benefits: first, to capitalize on the large surface area of ssPS aerogels and second, to exploit the mechanical strength of the cellulose filter. In second part of this study, silane precursor is absorbed inside the macropores of sPS gels and silica gels are grown under both a two-step reaction and a one-step reaction. Type A silica aerogel is synthesized by acid-base catalyzed sol-gel method, while type B silica aerogel is prepared only by acid catalyzed sol-gel process. Type A silica gels exhibit pearl-necklace structure, while type B silica gels are composed of strand-like silica particles. In the process, the mesoporous hydrophilic silica particles are combined with macro- and microporous hydrophobic sPS in single articles. This unique combination of organic and inorganic materials and their associated surface area and surface energy offer a number of attractive properties. The sPS/silica hybrid aerogels are fabricated from different concentrations of sPS in solution and from different weight ratio of sPS to silica. The sPS/silica hybrid aerogels exhibit predominant pores located in the mesopore range (2~50 nm), and at higher silica content, silica particles undergo more aggregation as evident from larger fractions mesopore size (~15 nm). In contrast to native sPS aerogel, the compressive modulus of hybrid aerogel is increased up to 100%. In addition, the hybrid aerogels present specific surface area as high as 693 m2/g, high porosity, fast absorption and high absorption capacity of crude oil. Type A hybrid aerogels are composed of both fiber-like strands of sPS and pearl-necklace particles of silica. At low weight ratio of sPS to silica, the silica forms aggregates on sPS backbones as conformal coating. At higher weight ratio of sPS to silica, the silica particles not only coated on the polymer backbones, but also filled the macropores of sPS. Type B hybrid aerogels present fiber-like interpenetrating networks formed by sPS strands of 50-100 nm and silica strand of 200 nm.
Aerogels Handbook
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Author : Michel Andre Aegerter
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-06-10
Aerogels Handbook written by Michel Andre Aegerter and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-10 with Technology & Engineering categories.
Aerogels are the lightest solids known. Up to 1000 times lighter than glass and with a density as low as only four times that of air, they show very high thermal, electrical and acoustic insulation values and hold many entries in Guinness World Records. Originally based on silica, R&D efforts have extended this class of materials to non-silicate inorganic oxides, natural and synthetic organic polymers, carbon, metal and ceramic materials, etc. Composite systems involving polymer-crosslinked aerogels and interpenetrating hybrid networks have been developed and exhibit remarkable mechanical strength and flexibility. Even more exotic aerogels based on clays, chalcogenides, phosphides, quantum dots, and biopolymers such as chitosan are opening new applications for the construction, transportation, energy, defense and healthcare industries. Applications in electronics, chemistry, mechanics, engineering, energy production and storage, sensors, medicine, nanotechnology, military and aerospace, oil and gas recovery, thermal insulation and household uses are being developed with an estimated annual market growth rate of around 70% until 2015. The Aerogels Handbook summarizes state-of-the-art developments and processing of inorganic, organic, and composite aerogels, including the most important methods of synthesis, characterization as well as their typical applications and their possible market impact. Readers will find an exhaustive overview of all aerogel materials known today, their fabrication, upscaling aspects, physical and chemical properties, and most recent advances towards applications and commercial products, some of which are commercially available today. Key Features: •Edited and written by recognized worldwide leaders in the field •Appeals to a broad audience of materials scientists, chemists, and engineers in academic research and industrial R&D •Covers inorganic, organic, and composite aerogels •Describes military, aerospace, building industry, household, environmental, energy, and biomedical applications among others
Sol Gel Science
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Author : C. Jeffrey Brinker
language : en
Publisher: Academic Press
Release Date : 2013-10-22
Sol Gel Science written by C. Jeffrey Brinker and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing presents the physical and chemical principles of the sol-gel process. The book emphasizes the science behind sol-gel processing with a chapter devoted to applications. The first chapter introduces basic terminology, provides a brief historical sketch, and identifies some excellent texts for background reading. Chapters 2 and 3 discuss the mechanisms of hydrolysis and condensation for nonsilicate and silicate systems. Chapter 4 deals with stabilization and gelation of sols. Chapter 5 reviews theories of gelation and examines the predicted and observed changes in the properties of a sol in the vicinity of the gel point. Chapter 6 describes the changes in structure and properties that occur during aging of a gel in its pore liquor (or some other liquid). The discussion of drying is divided into two parts, with the theory concentrated in Chapter 7 and the phenomenology in Chapter 8. The structure of dried gels is explored in Chapter 9. Chapter 10 shows the possibility of using the gel as a substrate for chemical reactions or of modifying the bulk composition of the resulting ceramic by performing a surface reaction (such as nitridation) on the gel. Chapter 11 reviews the theory and practice of sintering, describing the mechanisms that govern densification of amorphous and crystalline materials, and showing the advantages of avoiding crystallization before sintering is complete. The properties of gel-derived and conventional ceramics are discussed in Chapter 12. The preparation of films is such an important aspect of sol-gel technology that the fundamentals of film formation are treated at length in Chapter 13. Films and other applications are briefly reviewed in Chapter 14. Materials scientists and researchers in the field of sol-gel processing will find the book invaluable.
Aerogels For Energy Saving And Storage
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Author : Meldin Mathew
language : en
Publisher: John Wiley & Sons
Release Date : 2024-07-23
Aerogels For Energy Saving And Storage written by Meldin Mathew and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-23 with Technology & Engineering categories.
Explore the energy storage applications of a wide variety of aerogels made from different materials In Aerogels for Energy Saving and Storage, an expert team of researchers delivers a one-stop resource covering the state-of-the-art in aerogels for energy applications. The book covers their morphology, properties, and processability and serves as a valuable resource for researchers and professionals working in materials science and environmentally friendly energy and power technology. The authors offer a comprehensive review of highly efficient energy applications of aerogels that bridges the gap between engineering, science, and chemistry and advances the field of materials development. They provide a Life Cycle Assessment of aerogels in energy systems, as well as discussions of their impact on the environment. Aerogel synthesis, characterization, fabrication, morphology, properties, energy-related applications, and simulations are all explored, and likely future research directions are provided. Readers will also find: A thorough introduction to aerogels in energy, including state-of-the-art advancements and challenges newly encountered Comprehensive explorations of chitin-based and cellulose-derived aerogels, as well as lignin-, clay-, and carbon nanotube-based aerogels Practical discussions of organic, natural, and inorganic aerogels, with further analyses of the lifecycle of aerogels In-depth examinations of the theory, modeling, and simulation of aerogels Perfect for chemical and environmental engineers, Aerogels for Energy Saving and Storage will also earn a place in the libraries of chemistry and materials science researchers in academia and industry.