Relevant bibliographies by topics / Characterizations of the materials

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Academic literature on the topic 'Characterizations of the materials'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Characterizations of the materials"

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Martínez Borja, Ana Lilia, José de Jesús Pérez Bueno, and Maria Luisa Mendoza Lopez. "Composite materials with graphenic materials by extrusion for 3D printing." MRS Advances 3, no. 64 (2018): 3891–98. http://dx.doi.org/10.1557/adv.2018.601.

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AbstractThe work shows the preparation and characterization of composite materials using a polymer as a matrix (ABS) and carbon black or a graphenic material (graphene or graphene foam). The materials were individually mixed with the polymer and the process parameters were established in an extruder with capacity for temperature control starting at laboratory conditions and up to 600 °C. The process parameters were adjusted to form filaments that were subsequently used in a 3D printer. The parameters of the printing process were adjusted to achieve the production of flat prototypes. These prototypes were characterized by Digital Optical Microscopy. The degree of homogeneity of the prototypes and the working ranges for the graphene material concentrations were determined. Even though the characterizations were done in flat samples, 3D printing allows obtaining a great diversity of structure that broadens the diversity of applications for such kind of composite materials.
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Khaldoun, Bachari, Juan M. Coronado, Amel Boudjemaa, and Talhi Oualid. "Porous Materials: Synthesis, Characterizations, and Applications." Journal of Chemistry 2016 (2016): 1. http://dx.doi.org/10.1155/2016/5028795.

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Huang, Shujin, Lu Qi, Wenbin Huang, Longlong Shu, Shenjie Zhou, and Xiaoning Jiang. "Flexoelectricity in dielectrics: Materials, structures and characterizations." Journal of Advanced Dielectrics 08, no. 02 (April 2018): 1830002. http://dx.doi.org/10.1142/s2010135x18300025.

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Flexoelectricity in dielectrics suggests promising smart structures for sensors, actuators and transducers. In this review, dielectric materials, structures and the associated flexoelectric characterization methods are presented. First of all, we review structures and methods to measure different flexoelectric coefficients, including [Formula: see text], etc., via direct or converse flexoelectric effect. The flexoelectric materials in the form of bulk, thin films and 2D materials and the reported flexoelectric properties of these dielectrics will then be discussed. Semiconductor materials and the associated flexoelectric studies will also be reviewed. The progress of flexoelectric device study will next be presented, followed by the flexoelectricity research challenges and future trend.
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Ibrahim, Ahmed, Anna Klopocinska, Kristine Horvat, and Zeinab Abdel Hamid. "Graphene-Based Nanocomposites: Synthesis, Mechanical Properties, and Characterizations." Polymers 13, no. 17 (August 26, 2021): 2869. http://dx.doi.org/10.3390/polym13172869.

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Graphene-based nanocomposites possess excellent mechanical, electrical, thermal, optical, and chemical properties. These materials have potential applications in high-performance transistors, biomedical systems, sensors, and solar cells. This paper presents a critical review of the recent developments in graphene-based nanocomposite research, exploring synthesis methods, characterizations, mechanical properties, and thermal properties. Emphasis is placed on characterization techniques and mechanical properties with detailed examples from recent literature. The importance of characterization techniques including Raman spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) for the characterization of graphene flakes and their composites were thoroughly discussed. Finally, the effect of graphene even at very low loadings on the mechanical properties of the composite matrix was extensively reviewed.
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Alipour, Pedram, Babak Behforouz, Ehsan Mohseni, and Behnam Zehtab. "Investigation of SCC characterizations incorporating supplementary cementitious materials." Emerging Materials Research 8, no. 3 (September 1, 2019): 492–507. http://dx.doi.org/10.1680/jemmr.18.00024.

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He, Guang S., Loon-Seng Tan, Qingdong Zheng, and Paras N. Prasad. "Multiphoton Absorbing Materials: Molecular Designs, Characterizations, and Applications." Chemical Reviews 108, no. 4 (April 2008): 1245–330. http://dx.doi.org/10.1021/cr050054x.

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Dash, D., S. Samanta, S. S. Gautam, and M. Murlidhar. "Mechanical Characterizations of Natural Fiber Reinforced Composite Materials." International Journal of Advanced Materials Manufacturing and Characterization 3, no. 1 (March 13, 2013): 275–79. http://dx.doi.org/10.11127/ijammc.2013.02.050.

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YAO, X. F., D. L. LIU, H. M. XU, and H. Y. YEH. "Investigation of fracture characterizations of functionally graded materials." Fatigue & Fracture of Engineering Materials & Structures 32, no. 2 (February 2009): 148–58. http://dx.doi.org/10.1111/j.1460-2695.2008.01320.x.

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Eichholz, Geoffrey G. "Materials Characterizations: Metals Handbook (Vol. 10, 9th ed.)." Nuclear Technology 77, no. 1 (April 1987): 116. http://dx.doi.org/10.13182/nt87-a33958.

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Mangum, Josh, Olga Kryliouk, H. J. Park, T. J. Anderson, and Z. Liliental-Weber. "InN Nanostructured Materials: Controlled Synthesis, Characterizations, and Applications." ECS Transactions 8, no. 1 (December 19, 2019): 131–36. http://dx.doi.org/10.1149/1.2767298.

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Dissertations / Theses on the topic "Characterizations of the materials"

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Nexha, Albenc. "Synthesis and characterizations of multifunctional luminescent lanthanide doped materials." Doctoral thesis, Universitat Rovira i Virgili, 2020. http://hdl.handle.net/10803/670199.

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El desenvolupament de nanotermòmetres luminescents de no contacte basats en ions lantànids per ser utilitzats com a eines de diagnòstic precises, eficients i ràpides, propietats atribuïdes a la seva versatilitat, estabilitat i perfils de banda d'emissió estrets, ha portat cap a la substitució de les sondes tèrmiques de contacte convencionals. L'aplicació de nanopartícules dopades amb ions lantànids com nanosensors de temperatura, excitats amb llum ultraviolada, visible o infraroja propera, i la generació d'emissions en les regions espectrals de les finestres biològiques: I-BW (650 nm-950 nm), II-BW (1000 nm -1350 nm), III-BW (1400 nm-2000 nm) i IV-BW (centrada en 2200 nm), està creixent notablement a causa d’avantatges com la reducció de la fototoxicitat i el fotoblanqueig, un contrast d'imatge millor i una major profunditat de penetració en els teixits biològics. Entre aquestes finestres biològiques, la III-BW permet lectures tèrmiques més profundes dins de teixits biològics específics, atribuïdes a una major profunditat de penetració a causa de la reducció de l'absorbància i la dispersió en comparació amb les altres finestres biològiques. No obstant això, la termometria de luminescència en aquest règim espectral s'ha explorat poc. Aquí, hem sintetitzat i caracteritzat materials luminescents dopats amb Ho3+ i Tm3+ amb emissions ubicades a la III-BW per a la seva aplicació com a termòmetres luminescents i agents fototèrmics. Hem utilitzat partícules de KLu(WO4)2 i Y2O3 dopades amb Ho3+ i Tm3+ com a possibles agents fototèrmics automonitoritzats capaços d'alliberar calor i de determinar la temperatura simultàniament. Per a la seva síntesi, hem adaptat mètodes solvotermals (autoclau convencional i assistit per microones) i químics humits (descomposició tèrmica i maduració digestiva). Per acabar, hem aprofitat la peculiar configuració electrònica i les característiques morfològiques de les nanopartícules de Y2O3 per aplicar-les com a emissors de llum blanca i com a agents antioxidants ex vivo.
El desarrollo de nanotermómetros luminiscentes de no contacto basados en iones lantánidos para ser usados como herramientas de diagnóstico precisas, eficientes y rápidas, propiedades atribuidas a su versatilidad, estabilidad y perfiles de banda de emisión estrechos, ha llevado a la sustitución de las sondas térmicas de contacto convencionales. La aplicación de nanopartículas dopadas con lantánidos como nanosensores de temperatura, excitados con luz ultravioleta, visible o infrarroja cercana, y la generación de emisiones en las regiones espectrales de las ventanas biológicas: I-BW (650 nm-950 nm), II-BW (1000 nm -1350 nm), III-BW (1400 nm-2000 nm) y IV-BW (centrada en 2200 nm), está creciendo notablemente debido a ventajas como la reducción de la fototoxicidad y el fotoblanqueo, un mejor contraste de imagen y una mayor profundidad de penetración en tejidos biológicos. Entre estas ventanas biológicas, la III-BW permite lecturas térmicas más profundas dentro de tejidos biológicos específicos, atribuidas a una mayor profundidad de penetración debido a la reducción de la absorbancia y la dispersión en comparación con las otras ventanas biológicas. Sin embargo, la termometría de luminiscencia en este régimen espectral se ha explorado poco. Aquí, hemos sintetizado y caracterizado materiales luminiscentes dopados con Ho3+ y Tm3+ con emisiones ubicadas en la III-BW para su aplicación como termómetros luminiscentes y agentes fototérmicos. Hemos utilizado partículas de KLu(WO4)2 y Y2O3 dopadas con Ho3+ y Tm3+ como posibles agentes fototérmicos automonitorizados capaces de liberar calor y determinar la temperatura simultáneamente. Para su síntesis, hemos adaptado métodos solvotermales (autoclave convencional y asistido por microondas) y químicos húmedos (descomposición térmica y maduración digestiva). Para finalizar, hemos aprovechado la peculiar configuración electrónica y las características morfológicas de las nanopartículas de Y2O3 para aplicarlas como emisores de luz blanca y como agentes antioxidantes ex vivo.
The development of non-contact luminescent lanthanide nanothermometers as accurate, efficient and fast diagnostic tools, attributed to their versatility, stability and narrow emission band profiles, have led to the replacement of the conventional contact thermal probes. The application of lanthanide doped nanoparticles as temperature nanosensors, excited with ultraviolet, visible or near infrared light, and the generation of emissions lying in the biological windows spectral regions: I-BW (650 nm-950 nm), II-BW (1000 nm-1350 nm), III-BW (1400 nm-2000 nm) and IV-BW (centered at 2200 nm), is notably growing due to the advantages of reduced phototoxicity and photobleaching, better image contrast and deeper penetration depths into biological tissues. Among these biological windows, the III-BW allows for deeper thermal readings within specific biological tissues, attributed to a higher penetration depth due to the reduction of absorbance and scattering when compared to the other biological windows. Nevertheless, luminescence thermometry in this spectral regime is randomly explored. Here, we synthesized and characterized luminescent Ho3+ and Tm3+ doped materials with emissions located in the III-BW for their application as luminescent thermometers and photothermal agents. We explored Ho3+ and Tm3+ doped KLu(WO4)2 and Y2O3 particles as potential self-assessed photothermal agents able to release heat and determine temperature simultaneously. For their synthesis, we adapted solvothermal (microwave-assisted and conventional autoclave) and wet-chemical (thermal decomposition and digestive ripening) methods. To conclude, we took profit of the peculiar electronic configuration and morphological characteristics of the Y2O3 nanoparticles to apply them as white light emitters and as ex-vivo antioxidant agents.
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Lee, Liang-hui. "Syntheses, characterizations and applications of new materials containing polyynes /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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Trieu, Thuong X. "Syntheses and Characterizations of New Metal-Organic Framework Materials." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10973986.

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Metal–organic frameworks are a rapidly expanding family of crystalline porous materials and have shown great promise to address various challenges such as gas storage and separation due to their well-defined pore size and unprecedented tunability in both composition and pore geometry. Here, we have synthesized and structurally characterized a number of new metal- organic framework materials and studied the effects of ligands and metal types on the construction and properties of metal–organic frameworks. To probe the effects of functional groups on ligands, two zinc-based three-dimensional frameworks have been synthesized. They consist of zinc-triazolate layers pillared by dicarboxylates with different functional groups. In addition, a very unusual magnesium metal-organic framework material has been made. It consists of novel magnesium acetate chains crosslinked by 1,4-benzenedicarboxylate into a three-dimensional framework with large channels. The phase purity and structures of these materials have been determined by powder and single-crystal X-ray diffraction. Their thermal stability and sorption a properties for gas molecules such as N 2, H2, and CO2 have also been studied.

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Wong, Chau Ping. "Synthesis and characterizations of CdS nanoribbons and their optical properties." access abstract and table of contents access full-text, 2006. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21449120a.pdf.

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Thesis (M.Sc.)--City University of Hong Kong, 2006.
"Master of Science in Materials Engineering & Nanotechnology dissertation." Title from title screen (viewed on Nov. 21, 2006) Includes bibliographical references.
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Antoni, Per. "Functional Dendritic Materials using Click Chemistry : Synthesis, Characterizations and Applications." Doctoral thesis, KTH, Fiber- och polymerteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4808.

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Förfrågan efter nya och mer avancerade applikationer är en pågående process vilket leder till en konstant utveckling av nya material. För att förstå relationen mellan en applikations egenskaper och dess sammansättning krävs full förståelse och kontroll över materialets uppbyggnad. En sådan kontroll över uppbyggnaden hos material hittas i en undergrupp till dendritiska polymerer som kallas dendrimerer. I den här doktorsavhandlingen belyses nya metoder för att framställa dendrimer med hjälp av selektiva kemiska reaktioner. Sådana selektiva reaktioner kan hittas inom konceptet klickkemi och har i detta arbete kombinerats med traditionell anhydrid- och karbodiimidmedierad kemi. Denna avhandling diskuterar en accelererad tillväxtmetod, dendrimerer med inre och yttre reaktiva grupper, simultana reaktioner och applikationer baserade på dessa dendritiska material. En accelererad tillväxtmetod har utvecklats baserad på AB2- och CD2-monomerer. Dessa monomerer tillåter tillväxt av dendrimerer utan att använda sig av skyddsgruppkemi eller aktivering av ändgrupper. Detta gjordes genom att kombinera kemoselektiviteten hos klickkemi tillsammans med traditionell syraklorid kopplingar. Dendrimerer med inre alkyn- eller azidfunktionalitet syntetiserades genom att använda AB2C-monomerer. Den dendritiska tillväxten skedde med hjälp av karbodiimidmedierad kemi. Monomererna som användes bär på en C-funktionalitet, alkyn eller azid, och på så sätt byggs får interiören i de syntetiserade dendrimeren en inneburen aktiv funktionell grupp. Ortogonaliteten hos klickkemi användes för att sammanfoga monomerer till en dendritisk struktur. Traditionell anhydridkemi- och klickemireaktioner utfördes samtidigt och på så sätt kunde dendritiska strukturer erhållas med färre antal uppreningssteg. En ljusemitterande dendrimer syntetiserades genom att koppla azidfunktionella dendroner till en alkynfunktionell cyclenkärna. Europiumjoner inkorporerades i kärnan varpå dendrimerens fotofysiska egenskaper analyserades. Mätningarna visade att den bildade triazolen hade en sensibiliserande effekt på europiumjonen. Termiska studier på några av de syntetiserade dendrimerer utfördes för att se om några av dem kunde fungera som templat vid framställning av isoporösa filmer.
The need for new improved materials in cutting edge applications is constantly inspiring researchers to developing novel advanced macromolecular structures. A research area within advanced and complex macromolecular structures is dendrimers and their synthesis. Dendrimers consist of highly dense and branched structures that have promising properties suitable for biomedical and electrical applications and as templating materials. Dendrimers provide full control over the structure and property relationship since they are synthesized with unprecedented control over each reaction step. In this doctoral thesis, new methodologies for dendrimer synthesis are based on the concept of click chemistry in combination with traditional chemical reactions for dendrimer synthesis. This thesis discusses an accelerated growth approach, dendrimers with internal functionality, concurrent reactions and their applications. An accelerated growth approach for dendrimers was developed based on AB2- and CD2-monomers. These allow dendritic growth without the use of activation or deprotection of the peripheral end-groups. This was achieved by combining the chemoselective nature of click chemistry and traditional acid chloride reactions. Dendrimers with internal azide/alkyne functionality were prepared by adding AB2C monomers to a multifunctional core. Dendritic growth was obtained by employing carbodiimide mediated chemistry. The monomers carry a pendant C-functionality (alkyne or azide) that remains available in the dendritic interior resulting in dendrimers with internal and peripheral functionalities. The orthogonal nature of click chemistry was utilized for the simultaneous assembly of monomers into dendritic structures. Traditional anhydride chemistry and click chemistry were carried out concurrently to obtain dendritic structures. This procedure allows synthesis of dendritic structures using fewer purification steps. Thermal analyses on selected dendrimers were carried out to verify their use as templates for the formation of honeycomb membranes. Additionally, a light emitting dendrimer was prepared by coupling of azide functional dendrons to an alkyne functional cyclen core. A Europium ion was incorporated into the dendrimer core, and photophysical measurements on the metal containing dendrimer revealed that the formed triazole linkage possesses a sensitizing effect.
QC 20100629
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Lu, Meng Peng Zhonghua. "Syntheses and characterizations of polyoxometalates containing organic/inorganic hybrid materials." Diss., UMK access, 2005.

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Thesis (Ph. D.)--Dept. of Chemistry and School of Pharmacy. University of Missouri--Kansas City, 2005.
"A dissertation in chemistry and pharmaceutical sciences." Advisor: Zhonghua Peng. Typescript. Vita. Description based on contents viewed June 26, 2006; title from "catalog record" of the print edition. Includes bibliographical references (leaves 173-190). Online version of the print edition.
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Zhang, Xin. "Characterizations of annealed ion implanted silicon carbide materials and devices." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 63 p, 2006. http://proquest.umi.com/pqdweb?did=1246566191&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Kawrani, Sara. "Synthesis, Characterizations and applications of oxides materials based on CaCu3Ti4O12." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS085.

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Les oxydes de type pérovskites présentent différentes propriétés selon leur structure et leur composition chimique. Les principales pérovskites étudiées, BaTiO3 et YBa2Cu3O7, possèdent d’intéressantes propriétés ferroélectriques et supraconductrices. Une des limitations de ce type d’oxydes est la transition de phase à haute température qui peut modifier leurs propriétés. Le matériau CaCu3Ti4O12 (CCTO) est un oxyde connu comme double perovskite (ABO3) à structure cubique, qui a été étudié ces dernières années en tant que matériau diélectrique de permittivité élevée. De plus, CCTO subit une transition magnétique à antiferromagnétique au-dessous de la température de Néel (TN=25K). Les propriétés du matériau CCTO sont fortement dépendantes de sa structure et offrent des possibilités d’applications photoélectrochimiques. D'un autre côté, les nanofeuillets de nitrure de bore (h-BN) et d’oxyde de graphène (GO) sont des matériaux 2D présentant des propriétés très intéressantes.Dans le cadre de ce travail, des matériaux composites à base de CCTO et de nanofeuillets de nitrure de bore et d’oxyde de graphène ont été synthétisés et étudiés. Les céramiques composites CCTO/GO et CCTO/h-BN ont été synthétisées par réaction solide-solide. Les différentes propriétés photoélectrochimiques, diélectriques, et magnétiques ont été caractérisées. L’addition de 3% de h-BN aboutit à l’incorporation des atomes du bore et d’azote dans le réseau cristallin du CCTO et forme les liaisons Ti-B-O et Ti-N-O, et génère des lacunes d’oxygène à la surface, ce qui améliore la génération de porteurs de charges. La génération de porteurs de charges est augmentée en 50% par rapport au CCTO pur, après l’addition de 3% de GO, due à l’oxydation de GO à haute température qui réduit Ti4+ et Cu2+ en site actifs Ti3+ et Cu+ respectivement. Les propriétés magnétiques du CCTO avec 6% de nanofeuillets ont été étudiées, et ont montré que la température Néel n’était pas modifiée. Enfin, un polissage est effectué à la surface des céramiques pour étudier leurs propriétés diélectriques. Les résultats montrent des valeurs de permittivité plus basse que celles décrites dans la littérature. En conclusion, ces travaux ont démontré que l’incorporation des nanofeuillets 2D n’affecte pas les propriétés diélectriques et magnétiques, mais améliore considérablement les propriétés photoélectrochimiques du CCTO
Perovskite oxides exhibit a large variety of properties because of their structures and chemical compositions. Well known properties of the perovskite oxides are Ferroelectricity in BaTiO3-based oxides and superconductivity in YBa2Cu3O7. The major limit of these compounds is their phase transitions at high temperature, which lead to modify the perovskite properties. CaCu3Ti4O12 (CCTO) exhibit a cubic structure stable at high temperature, it is a double-perovskite (ABO3). CCTO was known as high dielectric material, and can play a key role in photoelectrochemical activity due to its structure. In addition, CCTO can occur a phase transition into the antiferromagnetically ordered phase below Neel temperature TN = 25 K. On the other hand, 2D nanomaterials including graphene oxide (GO) and hexagonal boron nitrides (h-BN) were widely used due their exceptional properties.The aim of this thesis is to investigate the photoelectrochemical, dielectric, and magnetic properties of CCTO based composites. Composites made of CCTO/GO and CCTO/h-BN ceramics were fabricated by solid-state reaction. With the addition of 2D nanosheets materials, the photoelectrochemical performance is enhanced by increasing the generation of photocurrent. CCTO with 3%wt of h-BN showed the insertion of bore (B) and nitrogen (N) into CCTO lattice, leading to Ti-B-O, Ti-N-O bonds and oxygen vacancies on the surface which reduce the bang gap energy and increase the density of generated photocurrent. With 3% of GO, Ti4+ and Cu2+ were reduced to active species Ti3+ and Cu+ respectively and oxygen vacancies were generated at the surface for charge neutralization, leading to generate photocurrent density 50% higher than pure phase of CCTO. In order to investigate 2D nanomaterials effects on magnetic properties of composites, CCTO with 6%wt of nanosheets was prepared and have shown no significant changes in Neel temperature. Finally in the last section, all composites were surface polished to investigate their dielectric properties, measurements showed a low permittivity in comparison to the literature. In conclusion, this work has shown that 2D nanosheets materials incorporation does not affect dielectric and magnetic properties, but enhance strongly the photoelectrochemical behavior of CCTO
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Stackhouse, Chavis Andrew. "Azamacrocyclic-based Frameworks: Syntheses and Characterizations." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7646.

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Research in metal-organic frameworks (MOFs) has risen greatly in recent decades Owing to their unequaled potential tunability and structural diversity. MOFs may be described as crystalline structures composed of metal cations or clusters of cations, commonly referred to as secondary building units (SBUs), and custom-designed organic ligands. The variety of structural motifs, ligands, and SBUs that may be incorporated promote the attainment of essentially countless potential MOFs and application in numerous areas of interest, such as gas adsorption, catalysis, gas separation, and sensing. Further functionalization of MOF materials by means of post-synthetic modification(PSM)33–37 of metal clusters or organic ligands, constructing frameworks using functional ligands or metal clusters, and incorporating advantageous molecules including organometallic molecules,38–41 enzymes,42–45 metal nanoparticles (NPs),8,46–48 heteropolyacids49–51 within the pores advance the diverse number of species, including organic ligands, inorganic metal ions/clusters, and guests, used to construct MOFs materials lead to MOFs materials possessing phenomenal properties. Implementation of these materials in sensing arises from the frameworks’ characteristic ability to increase the concentration of a desired analyte to a greater degree than its overall presence within the system; imparting an inherent sensitivity to the aforementioned analyte. MOFs materials also possess the potential for selectivity for specific analytes or classes of analytes through mechanisms such as size exclusion (molecular sieving), chemically specific interactions between the adsorbate and framework, and the directed design of pore and aperture size through the selection of appropriate organic linkers or struts. Flexible azamacrocycle-based ligands are constructed through the use of pliable carboxylate pendant arms and azamacrocycles, e.g cyclen and tacn, and used in the pursuit of novel metal macrocycle frameworks (MMCF). Polyazamacrocycles represent a popular class of macrocyclic ligands for supramolecular chemistry and crystal engineering. This popularity may be due to their complexes’ high thermodynamic stability, relative kinetic inertness, basicity, transition metal-ion coordinating ability and rigid structure. Furthermore, their utilization promotes intriguing network topologies as coordination in complexes containing tetradentate azamacrocycles generally produces only two isomers differing via the coordination ligand’s conformation. The highly reported equatorial N4¬ ¬coordination of the macrocycle allows for interaction at the two vacant trans-axial positons, whilst the folded conformations permits interaction at two vacant cis positions. Azamacrocycle complexes differ from those of other classes of macrocycles due to the fact the macrocyclic cavity is commonly occupied by metal cations. Materials containing azamacrocycles have found use in applications such as bleaching and oxidative catalysis and molecular recognition. Cyclen units have reportedly been incorporated to construct pH-dependent selective receptors for copper (II), zinc(II), yttrium(III), and lanthanum(III) ions. Herein, we describe the synthesis and characterizations of a new lanthanide framework, La(C40H40N4O8)(NH2(CH2)2)NO3 or MMCF-3, which retains a vacancy in the macrocycle unit encourages the utilization of the framework as a cation receptor and precursor for heterometallic frameworks. The inclusion of azamacrocycles into MOF materials combine the characteristic high thermodynamic stability, basicity, and strong metal complexation of the macrocycles with the high porosity, surface area, and tunability of the frameworks. Full realization of the potential of Azamacrocyclic-based MOFs requires the preparation of new entrants to this class of materials that espouse various topological structures while incorporating diverse azamacrocycles. It has been shown that the hierarchical porosity associated with macrocyclic based frameworks can be obtained using this class of ligands.71,99 The development of more frameworks exhibiting this characteristic is needed to fully investigate the potential applications of MOFs retaining the vacant cavities of the azamacrocycles. Effectuation of hierarchical porosity of azamacrocyclic frameworks will broaden sensing applications, e.g. azamacrocycles have performed as receptors of anions, cations, amino acids and other analyte molecules, and provide an ideal slot to integrate open metal site into MOFs.
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Ha, Dong-Gwang. "Growth and characterizations of two-dimensional metal-organic frameworks." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122155.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 123-132).
Metal-Organic Frameworks (MOFs) are a class of porous materials with a crystalline structure that can be designed based on extremely tunable building blocks of organic molecules and metal ions. They are typically insulators but making them [pi]-conjugated with two-dimensional structure results in high electrical conductivity. This makes the two-dimensional a-conjugated MOFs (2D [pi]MOFs) good candidates for applications that need porous conductors such as supercapacitors and batteries. More importantly, tunability of the crystal structure enables us to explore exotic physical properties, including topological protection. This great potential has inspired the synthesis of various 2D [pi]MOFs, but their crystal growth remains challenging, preventing the characterization of intrinsic electrical properties. In this thesis, I will explain the growth mechanisms of 2D [pi]MOFs and the limitations of conventional growth methods.
Based on the analysis, I developed a novel growth method that generates single-crystal plates of a 2D [pi]MOF, Ni₃(HHTP)₂ (HHTP= 2,3,6,7,10,11 hexahydroxytriphenylene), over 10 [mu]m in lateral dimension, two orders of magnitude larger than previous reports. The growth mechanism of the new method is also studied by varying multiple growth parameters. The properties of the single crystals are characterized by various spectroscopic techniques. Among assorted characteristics, the electrical properties are explored closely. The large single-crystal plates enable us to study in-plane properties of a 2D [pi]MOF for the first time. The in-plane conductivity of Ni₃(HHTP)₂ is up to 2 S/cm, two orders of magnitude higher than pressed pellet, and shows a clear temperature dependence. Hall measurements reveal that the origin of the high conductivity is a high charge carrier density rather than high charge carrier mobility.
We anticipate our demonstration will facilitate the discovery of fundamental properties of various 2D [pi]MOFs and further our realization of their potential as electronic materials.
Kwangjeong educational foundation for financial support
by Dong-Gwang Ha.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Materials Science and Engineering
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Books on the topic "Characterizations of the materials"

1

Compound semiconductor bulk materials and characterizations. Singapore: World Scientific, 2012.

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Compound semiconductor bulk materials and characterizations. New Jersey: World Scientific, 2007.

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Park, Joon Bu. Bioceramics: Properties, characterizations, and applications. New York: Springer, 2008.

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Materials characterization. Hoboken, NJ: J. Wiley, 2008.

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Leng, Yang. Materials Characterization. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527670772.

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Pérez Campos, Ramiro, Antonio Contreras Cuevas, and Rodrigo Esparza Muñoz, eds. Materials Characterization. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15204-2.

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Characterization of materials. Hoboken, New Jersey: John Wiley & Sons, Inc., 2012.

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1924-, Kalman Zwi H., ed. Characterization of materials. Boston: Butterworth-Heinemann, 1993.

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Sardela, Mauro, ed. Practical Materials Characterization. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9281-8.

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Meyendorf, Norbert G. H., Peter B. Nagy, and Stanislav I. Rokhlin, eds. Nondestructive Materials Characterization. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08988-0.

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Book chapters on the topic "Characterizations of the materials"

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Wu, Suli, Zaifa Pan, Runfeng Chen, and Xiaogang Liu. "Material Characterizations." In Long Afterglow Phosphorescent Materials, 87–100. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60421-3_3.

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Cherusseri, Jayesh, Sumit Pramanik, L. Sowntharya, Deepak Pandey, Kamal K. Kar, and S. D. Sharma. "Polymer-Based Composite Materials: Characterizations." In Composite Materials, 37–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49514-8_2.

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Aït-Mokhtar, Abdelkarim, Ameur Hamami, Philippe Turcry, and Ouali Amiri. "Porous Construction Materials: Characterizations and Modeling." In Structure Design and Degradation Mechanisms in Coastal Environments, 1–39. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119006046.ch1.

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Sato, Yuichi, and Toru Matsumura. "Characterizations of Electrical Properties by the van der Pauw Method." In Transparent Conductive Materials, 245–61. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527804603.ch4.

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Yang, Ming, Guo Qing Zhou, Jiang Guo Zhao, and Zhan Jun Li. "Synthesis and Characterizations of Nanocubes, Monodispersed Nanocrystals and Nanospheres of Au." In Key Engineering Materials, 2163–66. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.2163.

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Gowda, D. Channe, Timothy M. Parker, R. Dean Harris, and Dan W. Urry. "Synthesis, Characterizations, and Medical Applications of Bioelastic Materials." In Peptides, 81–111. Boston, MA: Birkhäuser Boston, 1994. http://dx.doi.org/10.1007/978-1-4615-8176-5_7.

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Liu, Jing, and Liting Yi. "Preparations and Characterizations of Functional Liquid Metal Materials." In Liquid Metal Biomaterials, 95–115. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-5607-9_5.

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Fahlman, Bradley D. "Materials Characterization." In Materials Chemistry, 643–741. Dordrecht: Springer Netherlands, 2018. http://dx.doi.org/10.1007/978-94-024-1255-0_7.

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Fahlman, Bradley D. "Materials Characterization." In Materials Chemistry, 585–667. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0693-4_7.

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Fahlman, Bradley D. "Materials Characterization." In Materials Chemistry, 357–432. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6120-2_7.

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Conference papers on the topic "Characterizations of the materials"

1

Zhang, Hengyun, Y. C. Mui, Poh-Eng Tan, and Soon-Hwa Ng. "Thermal Characterizations of Solid Thermal Interface Materials." In 2008 10th Electronics Packaging Technology Conference (EPTC). IEEE, 2008. http://dx.doi.org/10.1109/eptc.2008.4763638.

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Zhang, Jing, and Nelson Tansu. "Development of III-Nitride Thermoelectric Characterizations and Materials." In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/acpc.2013.ath4k.2.

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Zhang, Jing, and Nelson Tansu. "Development of III-Nitride Thermoelectric Characterizations and Materials." In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/acp.2013.ath4k.2.

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Serquis, Adriana. "Crystallographic characterizations of materials for clean energies applications." In 23a Reunião da Associação Brasileira de Cristalografia. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/23abcr-01.

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Brem, John C. "Characterizations of Aluminum Alloy Sheet Materials Numisheet 2005." In NUMISHEET 2005: Proceedings of the 6th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Process. AIP, 2005. http://dx.doi.org/10.1063/1.2011346.

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Krishna, Potharaju, D. Neelima Patnaik, Birampally Kalyani, Pujari Navanitha, and C. P. Vardhani. "Synthesis and characterizations of multi-functional ferrites." In INTERNATIONAL CONFERENCE ON MULTIFUNCTIONAL MATERIALS (ICMM-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0019648.

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Mui, M. K., and David CC Lam. "Development and characterizations of low cost accelerometers." In 2006 International Conference on Electronic Materials and Packaging. IEEE, 2006. http://dx.doi.org/10.1109/emap.2006.4430664.

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Chulho Shin, Sumi Kim, Seongyeon Jo, and Insup Noh. "Biological characterizations of hyaluronic acid hydrogel particles." In 2011 IEEE Nanotechnology Materials and Devices Conference (NMDC 2011). IEEE, 2011. http://dx.doi.org/10.1109/nmdc.2011.6155292.

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Hsu, H. Y., and E. W. G. Diau. "Design and Characterizations of Perovskite Solar Cells." In 2014 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2014. http://dx.doi.org/10.7567/ssdm.2014.k-2-1.

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Pálmai, Marcell, EunByoel Kim, Kyle Tomczak, Xiaoyi Zhang, and Preston T. Snee. "Exact doping of semiconductor nanomaterials and X-ray characterizations." In Low-Dimensional Materials and Devices 2021, edited by Nobuhiko P. Kobayashi, A. Alec Talin, Albert V. Davydov, and M. Saif Islam. SPIE, 2021. http://dx.doi.org/10.1117/12.2595461.

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Reports on the topic "Characterizations of the materials"

1

Urry, Dan W. Production of Elastomeric Polypeptides for Materials Characterizations. Fort Belvoir, VA: Defense Technical Information Center, February 2004. http://dx.doi.org/10.21236/ada420503.

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Mo, Kun, Yinbin Miao, Di Yun, Laura M. Jamison, Jie Lian, and Tiankei Yao. Supplying materials needed for grain growth characterizations of nano-grained UO2. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1227385.

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Shen, Ciping. Preparations and characterizations of novel graphite-like materials and some high oxidation state fluorine chemistry. Office of Scientific and Technical Information (OSTI), November 1992. http://dx.doi.org/10.2172/10174522.

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Gschwander, Stefan, Ana Lazaro, Monica Delgado, Christoph Rathgeber, Michael Brütting, Stephan Höhlein, Melissa Obermeyer, et al. Summary of Work On development and characterization of improved Materials. IEA SHC Task 58, June 2021. http://dx.doi.org/10.18777/ieashc-task58-2021-0003.

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Abstract:
As the material development is done at different institution the objective of the work was to collect the materials which are under research and development to get an overview on the most relevant properties of these materials and application which are addressed.
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Wadley, H. N. G., J. A. Simmons, R. B. Clough, F. Biancaniello, E. Drescher-Krasicka, M. Rosen, T. Hsieh, and K. Hirschman. Composite materials interface characterization. Gaithersburg, MD: National Bureau of Standards, 1988. http://dx.doi.org/10.6028/nbs.ir.87-3630.

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Lagoudas, Dimitris C. Active Materials Characterization Laboratory. Fort Belvoir, VA: Defense Technical Information Center, January 2001. http://dx.doi.org/10.21236/ada388564.

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Maupin, G. D., W. M. Bowen, and J. L. Daniel. Fabrication and characterization of MCC (Materials Characterization Center) approved testing material: ATM-10 glass. Office of Scientific and Technical Information (OSTI), April 1988. http://dx.doi.org/10.2172/5029248.

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Shanahan, Kirk L. Materials characterization studies on LANA75/85 materials for replacement beds. Office of Scientific and Technical Information (OSTI), December 2016. http://dx.doi.org/10.2172/1342710.

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Telschow, K. L. Noncontacting NDE for materials characterization. Office of Scientific and Technical Information (OSTI), October 1995. http://dx.doi.org/10.2172/383642.

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Dr. Frank. Quantitative Characterization of Nanostructured Materials. Office of Scientific and Technical Information (OSTI), August 2010. http://dx.doi.org/10.2172/984663.

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