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Author: Suraj Donthula Publisher: ISBN: Category : Languages : en Pages : 247
Book Description
"Aerogels are three dimensional highly porous solid objects that provide density reduction compared to dense objects. Those materials can have applications in different classes of energy storage and the two types that are focused in this dissertation are mechanical energy and thermal energy storage. Shape memory materials can store and recover elastic deformation energy when triggered by an external stimulus such as temperature. To incorporate those properties, shape memory polymeric aerogels (SMPA) were synthesized from a rigid isocyanurate containing triisocyanate (N3300 A) and four short oligomeric derivatives of ethylene glycol: H(OCH2CH2)[sub n]OH (1 d"n d"4). The shape memory effect (SME) of those aerogels were evaluated via four figures of merit namely strain fixity, strain recovery, strain recovery rate and fill factor. The morphologies of skeletal frameworks of those aerogels varied from micrometer sized particles with thick necks to bicontinuous structures, that are typical of spinodal decomposition. A Marcus-type thermodynamic-kinetic relationship was identified between that shape recovery rate, R[sub t](N), and the elastic modulus, E. Other part of the dissertation deals with the synthesis of nanoporous metallic iron (Fe(0)) aerogels via carbothermal reduction of interpenetrating networks of polybenzoxazine and iron oxide nanoparticles. Excess carbon was removed oxidatively at 600 °C under flowing air and the oxides of Fe(0) thus produced in the oxidative step were reduced back to Fe(0) with H2 at different temperatures ranging from 300 - 1300 °C. Those final monoliths were loaded with perchlorates and ignited with a flame in open air. Based on the temperature of the reduction step, monoliths either fizzled out (d"00 °C), exploded violently (500-900 °C), or behaved as thermites (e"50 °C)"--Abstract, page v.
Author: Suraj Donthula Publisher: ISBN: Category : Languages : en Pages : 247
Book Description
"Aerogels are three dimensional highly porous solid objects that provide density reduction compared to dense objects. Those materials can have applications in different classes of energy storage and the two types that are focused in this dissertation are mechanical energy and thermal energy storage. Shape memory materials can store and recover elastic deformation energy when triggered by an external stimulus such as temperature. To incorporate those properties, shape memory polymeric aerogels (SMPA) were synthesized from a rigid isocyanurate containing triisocyanate (N3300 A) and four short oligomeric derivatives of ethylene glycol: H(OCH2CH2)[sub n]OH (1 d"n d"4). The shape memory effect (SME) of those aerogels were evaluated via four figures of merit namely strain fixity, strain recovery, strain recovery rate and fill factor. The morphologies of skeletal frameworks of those aerogels varied from micrometer sized particles with thick necks to bicontinuous structures, that are typical of spinodal decomposition. A Marcus-type thermodynamic-kinetic relationship was identified between that shape recovery rate, R[sub t](N), and the elastic modulus, E. Other part of the dissertation deals with the synthesis of nanoporous metallic iron (Fe(0)) aerogels via carbothermal reduction of interpenetrating networks of polybenzoxazine and iron oxide nanoparticles. Excess carbon was removed oxidatively at 600 °C under flowing air and the oxides of Fe(0) thus produced in the oxidative step were reduced back to Fe(0) with H2 at different temperatures ranging from 300 - 1300 °C. Those final monoliths were loaded with perchlorates and ignited with a flame in open air. Based on the temperature of the reduction step, monoliths either fizzled out (d"00 °C), exploded violently (500-900 °C), or behaved as thermites (e"50 °C)"--Abstract, page v.
Author: Meldin Mathew Publisher: John Wiley & Sons ISBN: 1119717639 Category : Technology & Engineering Languages : en Pages : 548
Book Description
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.
Author: Meldin Mathew Publisher: John Wiley & Sons ISBN: 1119717655 Category : Technology & Engineering Languages : en Pages : 548
Book Description
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.
Author: Inamuddin Publisher: Materials Research Forum LLC ISBN: 1644900998 Category : Technology & Engineering Languages : en Pages : 282
Book Description
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.
Author: Michel A. Aegerter Publisher: Springer ISBN: 9783030273217 Category : Technology & Engineering Languages : en Pages : 0
Book Description
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.
Author: B.S. Murty Publisher: Springer Science & Business Media ISBN: 3642280307 Category : Technology & Engineering Languages : en Pages : 256
Book Description
This book is meant to serve as a textbook for beginners in the field of nanoscience and nanotechnology. It can also be used as additional reading in this multifaceted area. It covers the entire spectrum of nanoscience and technology: introduction, terminology, historical perspectives of this domain of science, unique and widely differing properties, advances in the various synthesis, consolidation and characterization techniques, applications of nanoscience and technology and emerging materials and technologies.
Author: National Defense University Publisher: NDU Press ISBN: 1780390408 Category : History Languages : en Pages : 356
Book Description
Despite the vital importance of the emerging area of biotechnology and its role in defense planning and policymaking, no definitive book has been written on the topic for the defense policymaker, the military student, and the private-sector bioscientist interested in the "emerging opportunities market" of national security. This edited volume is intended to help close this gap and provide the necessary backdrop for thinking strategically about biology in defense planning and policymaking. This volume is about applications of the biological sciences, here called "biologically inspired innovations," to the military. Rather than treating biology as a series of threats to be dealt with, such innovations generally approach the biological sciences as a set of opportunities for the military to gain strategic advantage over adversaries. These opportunities range from looking at everything from genes to brains, from enhancing human performance to creating renewable energy, from sensing the environment around us to harnessing its power.
Author: Zachary Davis Publisher: ISBN: 9781952565076 Category : Languages : en Pages : 580
Book Description
The world is being transformed physically and politically. Technology is the handmaiden of much of this change. But since the current sweep of global change is transforming the face of warfare, Special Operations Forces (SOF) must adapt to these circumstances. Fortunately, adaptation is in the SOF DNA. This book examines the changes affecting SOF and offers possible solutions to the complexities that are challenging many long-held assumptions. The chapters explore what has changed, what stays the same, and what it all means for U.S. SOF. The authors are a mix of leading experts in technology, business, policy, intelligence, and geopolitics, partnered with experienced special operators who either cowrote the chapters or reviewed them to ensure accuracy and relevance for SOF. Our goal is to provide insights into the changes around us and generate ideas about how SOF can adapt and succeed in the emerging operational environment.
Author: Markus Antonietti Publisher: John Wiley & Sons ISBN: 3527332081 Category : Science Languages : en Pages : 272
Book Description
This ready reference and handbook is unique in its focus on synthesis and the application of graphene and other carbon materials with an emphasis on chemistry aspects. To this extent, it deals with top-down and bottom-up approaches across the different length scales for graphene from polycyclic aromatic hydrocarbons to graphene nanoribbons and graphene sheets, as well as carbon materials from quantum dots, nanostructured particles, and fibers, right up to tubes, bulk structures, and much more besides. In so doing, it presents the best synthetic methods: pyrolysis, chemical vapor deposition, templating and surface-mediated synthesis, self-assembly, surface-grafting and modification. Edited by two excellent, experienced and highly renowned editors, both of whom are directors of Max Planck Institutes.
Author: Suraj Donthula
Author: Suraj Donthula
Author: Meldin Mathew
Author: Meldin Mathew
Author: Inamuddin
Author: Inamuddin
Author: Michel A. Aegerter
Author: B.S. Murty
Author: National Defense University
Author: Zachary Davis
Author: Markus Antonietti