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Dissertations / Theses on the topic 'Porous materials'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Zhang, Jin. "Shakedown of porous materials." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1I044/document.

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Cette thèse est consacrée à la détermination des états limites de l'adaptation des matériaux ductiles poreux sur la base du théorème de Melan et en considérant le modèle de la sphère creuse. Dans un premier temps, nous proposons le critère analytique macroscopique d'adaptation avec la matrice de von Mises sous deux charges particuliers, alterné et pulsé. Le critère analytique dépend des première et seconde invariants des contraintes macroscopiques, du signe du troisième et du coefficient de Poisson. Ensuite, ce critère est étendu aux charges cycliques répétées générales par la construction d'u

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2

Gong, Xuehui. "POROUS POLYMERIC FUNCTIONAL MATERIALS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1595256175834586.

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3

NEGRONI, MATTIA. "Dynamics in Porous Materials." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/263115.

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Il mio lavoro di tesi si è basato sulla caratterizzazione dei materiali porosi rivolgendo particolare attenzione alla ricerca di elementi dinamici all’interno delle strutture e allo studio dei gas adsorbiti. Sono riuscito a rilevare la presenza di rotori parafenilenici ultraveloci sia in cristalli molecolari porosi che in metal-organic framework (MOF). Uno studio più approfondito ha inoltre rivelato come questi moti siano influenzati dal gas adsorbito. Nello specifico l’energia di attivazione della rotazione aumenta in funzione della quantità di gas nei pori. Per meglio capire questa interazio

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4

Jiang, Tong. "Porous tin(IV) sulfide materials." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0007/NQ41557.pdf.

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5

Tchang, Cervin Nicholas. "Porous Materials from Cellulose Nanofibrils." Doctoral thesis, KTH, Fiberteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155065.

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In the first part of this work a novel type of low-density, sponge-like material for the separation of mixtures of oil and water has been prepared by vapour deposition of hydrophobic tri-chloro-silanes on ultra-porous cellulose nanofibril (CNF) aerogels. To achieve this, a highly porous (>99%) robust CNF aerogel with high structural flexibility is first formed by freeze-drying an aqueous suspension of the CNFs. The density, pore size distribution and wetting properties of the aerogel can be tuned by selecting the concentration of the CNF suspension before freeze-drying. The hydrophobic ligh

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6

Chow, Hon-nin. "Computer aided modelling of porous structures." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B39848929.

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7

Harter, Thomas. "Unconditional and conditional simulation of flow and transport in heterogeneous, variably saturated porous media." Diss., The University of Arizona, 1994. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1994_36_sip1_w.pdf&type=application/pdf.

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8

Jacobs, Tia. "Self-assembly of new porous materials." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/3970.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: The primary objective of the work was to prepare and investigate new porous materials using the principles of crystal engineering. Both organic and metal-organic systems were studied and the work can best be divided into two separate sections: 1. The crystal engineering of Dianin’s Compound, a well-known organic host. 2. The design and synthesis of a series of related porous coordination compounds consisting of discrete, dinuclear metallocycles. The first section discusses the synthetic m

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9

Alsayednoor, Jafar. "Modelling and characterisation of porous materials." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4808/.

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Porous materials possessing random microstructures exist in both organic (e.g. polymer foam, bone) and in-organic (e.g. silica aerogels) forms. Foams and aerogels are two such materials with numerous engineering and scientific applications such as light-weight cores in sandwich structures, packaging, impact and crash structures, filters, catalysts and thermal and electrical insulators. As such, design and manufacture using these materials is an important task that can benefit significantly from the use of computer aided engineering tools. With the increase in computational power, multi-scale m

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10

Thompson, Benjamin Robert. "Hierarchically structured composites and porous materials." Thesis, University of Hull, 2017. http://hydra.hull.ac.uk/resources/hull:16570.

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This thesis develops a hydrogel bead templating technique for the preparation of hierarchically structured composites and porous materials. This method involves using slurries of hydrogel beads with different size distributions as templates. Mixing hydrogel beads with a scaffolding material and then allowing the scaffold to harden, followed by drying of the composite leaves pores in the place of the hydrogel beads. These pores reflect the size and shape of the templates used and the porosity reflects the volume percentage of hydrogel bead slurry mixed with the scaffolding material. A viscous t

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11

Haubensak, Frederick G. (Frederick George). "Microstructure design of porous brittle materials." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/26876.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1994.<br>Includes bibliographical references (leaves 214-223).<br>by Frederick George Haubensak.<br>Ph.D.

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12

McMonagle, Charles James. "Effect of pressure on porous materials." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31504.

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Research to design and synthesise new porous materials is a rapidly growing field with thousands of new systems proposed every year due to their potential use in a multitude of application in a wide range of fields. Pressure is a powerful tool for the characterisation of structure-property relationships in these materials, the understanding of which is key to unlocking their full potential. In this thesis we investigate a range of porous materials at a range of pressures. Over time the chemical architecture and complexity of porous materials has increased. Although some systems display remarka

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13

Eder, Grace M. "Dye Molecule-Based Porous Organic Materials." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1530012900215452.

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14

Farghaly, Ahmed A. "Fabrication of Multifunctional Nanostructured Porous Materials." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4189.

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Nanostructured porous materials generally, and nanoporous noble metals specifically, have received considerable attention due to their superior chemical and physical properties over nanoparticles and bulk counterparts. This dissertation work aims to develop well-established strategies for the preparation of multifunctional nanostructured porous materials based on the combination of inorganic-chemistry, organic-chemistry and electrochemistry. The preparation strategies involved one or more of the following processes: sol-gel synthesis, co-electrodeposition, metal ions reduction, electropolymeri

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15

Richards, Emma. "Immobilisation of polyazamacrocycles into porous materials." Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/8513/.

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The synthesis and characterisation of functionalised polyazamacrocycles and their subsequent immobilisation into porous materials were investigated and reported in this thesis. The incorporation of polyazamacrocycles into porous materials offers the potential to enhance their biomimetic and environmental properties with tuneable microenvironments around the macrocycles. Nine polyazamacrocycles have been synthesised that are functionalised with vinyl, pyridyl, carboxylate and iodide pendant arms in order to immobilise them into porous materials. Of these macrocycles nine metal complexes were su

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16

Acartürk, Ayhan. "Simulation of charged hydrated porous materials." Essen VGE, 2009. http://d-nb.info/998591939/04.

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17

Cooper, Emma. "Renewable routes to porous aluminosilicate materials." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/3936/.

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The objectives of this project were to synthesise zeolites and aluminosilicate materials from silicon sources derived from biomass ashes. These materials will have great potential as catalysts and adsorbents. In order to begin this study it was necessary to find and optimise a technique for extraction of silicon to an alkali silicate solution from biomass ashes. It was then necessary to develop a technique for analysis of the alkali silicate solutions. This was done using calibration of integrals from infrared spectra. An optimisation of the synthesis of Zeolite X from a rice hull ash derived

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18

Lopes, Felipe Robles. "Estudos experimentais de danos de formação em meios porosos." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265225.

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Orientador: Rosângela Barros Zanoni Lopes Moreno<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-22T09:00:58Z (GMT). No. of bitstreams: 1 Lopes_FelipeRobles_M.pdf: 3706160 bytes, checksum: 5656fb6101eaefe1ce42e6acd4bcca9d (MD5) Previous issue date: 2013<br>Resumo: A invasão de fluidos de perfuração e suas consequências na produção de petróleo são bem conhecidas e intensivamente discutidas por especialistas. Além disso, a comunidade científica tem buscado o entendimento dos mecani

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19

Biju-Duval, Paul M. "A new porous material based on cenospheres." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/26523.

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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Mulalo Doyoyo; Committee Member: Dr. Arash Yavari; Committee Member: Dr. Kenneth M. Will. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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20

Rioux, Ran Wei. "The Rate of Fluid Absorption in Porous Media." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/RiouxRW2003.pdf.

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21

Kou, Shuting, and 寇舒婷. "Porous structure modeling with computers." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206700.

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Porous structures are a particular type of solids, where a large number of pores exist in the geometric domain of interest. Research on porous structures have received increasingly keen interest in recent years and this is largely because of many unique and superior properties that porous structures possess. They can undertake special tasks which general solid materials are not competent to do. In recent twenty years numerous representations are put forward for porous structure modeling. But the challenges in practical porous structure design still exist and the structure heterogeneity brin

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22

Chow, Hon-nin, and 周漢年. "Computer aided modelling of porous structures." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B39848929.

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23

Lizardi-Mendoza, Jaime. "Structured porous materials of chitin and chitosan." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486244.

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Chitin is an abundant polysaccharide that is mainly found in the exoskeleton of arthropods (insect, crustaceans, etc.). It is chemically and structurally similar to cellulose but chitin has an acetamido group in the second position: Chitosan, the main derivative ofchitin, is deacetylated leaving the amide groups uncovered and liable to be protonated in acid environments. These together with other features provide chitin and chitosan with a range of distinctive functional properties that including structural qualities, adsorption capacity, reactivity, biocompatibility, bioactivity and biodegrad

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24

Ridgway, Catherine Jean. "Modelling pore-level properties of porous materials." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/1707.

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Pore-Cor is a 1.2 Mbyte Fortran 77 software package, which uses information from mercury porosimetry curves, supported by image-analysed electron micrographs, to generate a three-dimensional representational model of the pore-space within a porous material. As a result of this project, a much-improved version has been produced. The mercury intrusion curves for the simulated structures now converge automatically onto the experimental curves, so reducing the simulation time from several days to less than an hour. A further time economy has been provided by the incorporation of an improved permea

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25

Wilcox, O. T. "Porous materials for the uptake of ammonia." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3007235/.

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26

Mohamed, Rozita. "Preparation of nano-structured macro-porous materials." Thesis, University of Newcastle upon Tyne, 2011. http://hdl.handle.net/10443/1317.

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This research reveals a catalyst development towards achieving catalysts with hierarchical porous structures with enhanced mechanical properties by using nano-structured macro-porous PolyHIPE polymer. This work can be divided into two parts: the fabrication and its characterisation of hierarchical metal structure using PHP and other fibre materials; and the fabrication and characterisation of PHP with silica particles and glass wool, further coated with silane material as templates. A catalyst system was successfully fabricated forming a 3D-interconnecting network of pore size, ranging from te

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27

Littlefield, Benjamin T. R. "Solvothermal synthesis of porous beryllate containing materials." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/359297/.

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Natural and synthetic zeolites have been the focus for extensive research owing to their many applications and huge potential number of new topologies. The work presented here represents the first major study into the formation of zeotypical materials incorporating BeO4 and T5+O4 (T5+ = As or P) tetrahedra and a large number of new structures have been produced. These novel materials have been synthesised via hydrothermal procedures and characterised via Single Crystal X-ray Diffraction, supported by Powder X-ray Diffraction, Thermogravimetric Analysis, Magic Angle Spinning Nuclear Magnetic Re

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28

Panella, Barbara. "Hydrogen storage by physisorption on porous materials." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-29012.

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29

Yan, Xuecheng. "Carbon-based Porous Materials for Electrochemical Reactions." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/366852.

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The exploration of highly active and durable cathodic oxygen reduction reaction (ORR) catalysts with economical production cost is still the bottleneck to realize the large-scale commercialization of some emerging technologies, such as fuel cells and metal-air batteries. At present, the composite that contains expensive platinum (Pt) particles dispersed on a porous carbon support (e.g., activated carbon (AC)) is the most efficient ORR catalyst. In a common sense, the AC itself normally shows very low activity for the ORR, so the Pt particles are vital. Imagine that if we remove all of the Pt

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30

Kunjir, Shrikant. "Study of new porous materials by NMR." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC211/document.

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Les zéolites sont des «tamis moléculaires» connus pour leurs nombreuses applications en adsorption, échange d'ions et catalyse. Dans cette thèse, nous nous sommes concentrés sur l'étude de quelques questions liées à la synthèse et à la post-synthèse de la zéolithe, qui ne sont pas encore résolues par d'autres techniques.La RMN a été l'outil principal dans ce travail, donnant accès à des informations structurales locales sur les nanocristaux même lorsque les techniques de diffraction trouvent leurs limites. Elle peut également être utilisée pour étudier la porosité en utilisant l'adsorption de

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31

Cervin, Nicholas. "Porous Cellulose Materials from Nano Fibrillated Cellulose." Licentiate thesis, KTH, Fiberteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104196.

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In the first part of this work a novel type of low-density, sponge-like material for the separation of mixtures of oil and water has been prepared by vapour deposition of hydrophobic silanes on ultra-porous nanocellulose aerogels. To achieve this, a highly porous (> 99 %) nanocellulose aerogel with high structural flexibility and robustness is first formed by freeze-drying an aqueous dispersion of the nanocellulose. The density, pore size distribution and wetting properties of the aerogel can be tuned by selecting the concentration of the nanocellulose dispersion before freeze-drying. The h

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32

Mochizuki, Shuto. "Controlled radical polymerization in designed porous materials." Kyoto University, 2019. http://hdl.handle.net/2433/242535.

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33

Lutzweiler, Gaëtan. "Porous polyurethane-based materials for tissue engineering." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAE019/document.

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Les matériaux poreux représentent une solution idéale en ingénierie tissulaire car leur structure peut offrir un environnement tridimensionnel aux cellules similaire à leur matrice extracellulaire tout en maintenant de bonnes propriétés mécaniques. Une première partie de cette thèse consiste à développer des matériaux poreux en polyuréthane (PU), dont l’architecture est contrôlée pour favoriser au mieux la survie et la croissance des cellules. Ces matériaux sont combinés à des traitements de surface (revêtement de polydopamine (PDA) et traitement plasma) pour augmenter notamment l’adhésion des

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34

TANZI, MARLOTTI GIACOMO. "THEORY OF POSITRONIUM INTERACTIONS WITH POROUS MATERIALS." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/609709.

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The work in this thesis is focused on studying the behavior of a positronium atom (Ps) inside matter and especially in porous materials. The need for im- proved theoretical models is justified by the lack of a simple explanation for the well known phenomenon of the lowering of the contact density, a parameter describing the electron density at the positron position. Given that this parameter is experimentally accessible, connecting its value to specific properties would be extremely useful in the context of structural analysis of materials. In the first two chapters we will give an intr

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35

Xenos, Sokratis. "Porous materials : constitutive modeling and computational issues." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAX040.

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Ce travail porte sur le développement, la calibration et l'implémentation numérique d'un nouveau modèle élastoplastique entièrement explicite, isotrope et indépendant du taux de déformation pour les matériaux métalliques poreux. La microstructure est supposée être constituée d'une distribution aléatoire de vides sphéroïdaux de même forme, orientés de manière aléatoire et avec une probabilité uniforme. Le modèle proposé est basé sur des estimations d'homogénéisation antérieures qui utilisent une théorie de comparaison composite linéaire (LCC). Pour évaluer l'exactitude du modèle analytique, nou

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36

Crimm, Robert Prentiss. "Experimental apparatus for measuring moisture transfer in porous materials subject to relative humidity and temperature differences." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-01122010-020146/.

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37

Qiao, Chongzhi. "Theoretical study of fluid adsorption in porous materials." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEN051/document.

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Les matériaux poreux ont une importance stratégique en génie chimique, par exemple en capturant les gaz à effet de serre, la séparation et la purification, les catalyseurs et la conception de capteurs. En raison de la diversité des matériaux poreux et des propriétés thermodynamiques des fluides confinés affectés par autant de matériaux et de propriétés des fluides, les méthodes classiques de la mécanique statistique sont encore étudiées au cas par cas, ce qui rend difficile l’offre des variables de contrôle. de fluide confiné ni pour fournir un motif régulier de fluide confiné. L'élaboration d

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Sun, Ssu-Hsueh. "Finite element analyses of coupled heat and moisture transport in cylindrical porous media and coal logs /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841186.

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39

Passos, Aline Ribeiro [UNESP]. "Aluminas macro-mesoporosas produzidas pelo método sol-gel para aplicação em catálise heterogênea." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/136086.

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Made available in DSpace on 2016-03-07T19:21:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-22. Added 1 bitstream(s) on 2016-03-07T19:25:12Z : No. of bitstreams: 1 000854657_20160801.pdf: 1128231 bytes, checksum: 4302c5ac8b1cba0d5bf7783f5225e2e5 (MD5) Bitstreams deleted on 2016-08-01T11:30:03Z: 000854657_20160801.pdf,. Added 1 bitstream(s) on 2016-08-01T11:30:59Z : No. of bitstreams: 1 000854657.pdf: 7039373 bytes, checksum: e3e464e79dbd92c0c088c22c6648dea7 (MD5)<br>Alumina é um suporte importante em catálise heterogênea. O controle das propriedades física e texturais pode mel

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Passos, Aline Ribeiro. "Aluminas macro-mesoporosas produzidas pelo método sol-gel para aplicação em catálise heterogênea /." Araraquara, 2015. http://hdl.handle.net/11449/136086.

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Orientador: Celso Valentim Santilli<br>Orientador: Valérie Briois<br>Co-orientador: Leandro Martins<br>Banca: Pedro de Oliveira<br>Banca: Sylvain Cristol<br>Banca: Victor Luis dos Santos Teixeira da Silva<br>Banca: Douglas Gouvêa<br>Resumo: Alumina é um suporte importante em catálise heterogênea. O controle das propriedades física e texturais pode melhorar seu desempenho como suporte em aplicações de catálise. Os catalisadores de cobalto são conhecidos por apresentarem excelente performance na reação de reforma de etanol (ESR) devido a elevada capacidade de quebra das ligações C-H e C-C. Muito

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Su, Zixue. "Porous anodic metal oxides." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/1019.

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An equifield strength model has been established to elucidate the formation mechanism for the highly ordered alumina pore arrays and titanium oxide nanotubular arrays prepared via a common electrochemical methodology, anodisation. The fundamentals of the equifield strength model was the equilibrium between the electric field driven oxidation rate of the metal and electric field enhanced dissolution rate of oxide. During the anodic oxidation of metal, pore initiation was believed to generate based on dissolution rate difference caused by inhomogeneity near the metal/oxide interface. The ionic n

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42

Yigit, Mehmet Veysel. "Design of open hydrogen-bonded frameworks using bis(imidazolium 2,4,6-pyridinetricarboxylate)metal complexes as secondary building units." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0514103-110657.

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Karlsson, Linda. "Biomolecular interactions with porous silicon /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/tek804s.pdf.

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Sommer, Jared Lee 1960. "Infiltration of deformable porous media." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/13101.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1992.<br>Vita.<br>Includes bibliographical references (leaves 179-188).<br>by Jared Lee Sommer.<br>Ph.D.

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45

Lin, Bingcan. "A new FEA modelling of porous solids." Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=59600.

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46

Byun, Caroline. "Bio-inspired photonic and plasmonic thermo-optical porous materials." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS448.

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Cette thèse s’inscrit dans la volonté de développer des matériaux autonomes, dotés de capacité à auto réguler la température et l'aspect optique en imitant l'homéostasie des systèmes vivants. Nous explorons différentes stratégies « bottom-up » pour induire l'autorégulation en intégrant des cycles de rétroaction négative dans les nanomatériaux. Pour réaliser, nous exploitons les propriétés thermo-optiques des matériaux nanoporeux (Sol-gel, MOFs) en présence d'une phase vapeur et associé à des structures photoniques et/ou plasmoniques à différentes échelles. Deux approches de synthèses sont prop

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Rumplecker, Anja. "Host guest chemistry of mesoscopically ordered porous materials." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=984866566.

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48

Guastavino, Rémi. "Elastic and acoustic characterisation of anisotropic porous materials." Doctoral thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4782.

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For an accurate prediction of the low and medium frequency surface vibration and sound radiation behaviour of porous materials, there is a need to improve the means of estimating their elastic and acoustic properties. The underlying reasons for this are many and of varying origin, one prominent being a poor knowledge of the geometric anisotropy of the cell microstructure in the manufactured porous materials. Another one being, the characteristic feature of such materials i.e. that their density, elasticity and dissipative properties are highly dependent upon the manufacturing process technique

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Hussami, Linda. "Synthesis, Characterization and Application of Multiscale Porous Materials." Doctoral thesis, KTH, Oorganisk kemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-27158.

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Abstract:

This thesis work brings fresh insights and improved understanding of nanoscale materials through introducing new hybrid composites, 2D hexagonal in MCM-41 and 3D random interconnected structures of different materials, and application relevance for developing fields of science, such as fuel cells and solar cells.New types of porous materials and organometallic crystals have been prepared and characterized in detail. The porous materials have been used in several studies: as hosts to encapsulate metal-organic complexes; as catalyst supports and electrode materials in devices for alternative ene

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50

Chapman, David James. "Shock-compression of porous materials and diagnostic development." Thesis, University of Cambridge, 2010. https://www.repository.cam.ac.uk/handle/1810/252180.

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Abstract:

A robust experimental design for measuring the shock-response of granular materials at ambient and higher densities is described. The method employed Lagrangian sensors embedded in anvils surrounding a sample cavity. The shock-consolidation of silica powders with a range of initial densities, structural forms of silica, morphologies, and water-content were investigated. Data on the principal Hugoniot and off-Hugoniot states were measured for: fused-silica powders of initial density <i>ρ</i><sub>00</sub> = 0.1, 0.25, and 0.77 g cm<sup>-3</sup>, quartz-sand of varying water-content (0%, 10%,20%,

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