Log in

Relevant bibliographies by topics / Nanocomposites (Materials) – Synthesis / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Nanocomposites (Materials) – Synthesis.

Dissertations / Theses on the topic 'Nanocomposites (Materials) – Synthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Nanocomposites (Materials) – Synthesis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Vickery, Jemma Louise. "Synthesis and characterisation of novel nanocomposites using layered materials." Thesis, University of Bristol, 2009. http://hdl.handle.net/1983/d260870c-a692-4712-a64b-beb6a4c35320.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Liu, Jia. "Polymer-layered silicate nanocomposites : synthesis, structure and properties /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?MECH%202004%20LIU.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Peng, Shirley. "Synthesis and Characterization of Crosslinked Polyurethane-Clay Nanocomposites." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427813762.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Zhang, Huanjun. "Ag/TiO[subscript 2] nanocomposites : synthesis, characterizations and applications /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CBME%202009%20ZHANGH.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Al-Aqeeli, Naser. "Development of Al- and Mg-based nanocomposites via solid-state synthesis." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102948.

Full text

Abstract:

Mechanical milling (alloying) is one of the non-equilibrium techniques used to prepare alloys with exceptional properties. This technique was employed in this research to develop a new class of Al- and Mg-based nanocomposite alloys using SPEX high energy milling. These nanocomposites are characterized by the dispersion of nanocrystals in an amorphous matrix. Zirconium was added to the Al-Mg alloys for the purpose of promoting glass formability. As-milled samples were annealed at 400°C for 1 hour to investigate the thermal stability of the nanostructure. The phase evolution of the resulting all

APA, Harvard, Vancouver, ISO, and other styles

6

Zhang, Guoqiang. "The Synthesis and Electrical Properties of Functional Polymer Nanocomposites." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case149010222646324.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Penn, Aubrey N. "Environmentally Friendly Synthesis of Transition Metalorganic Hybrid Nanocomposites." TopSCHOLAR®, 2017. http://digitalcommons.wku.edu/theses/1953.

Full text

Abstract:

Research on metal nanoparticles (MNPs) synthesis and their applications for optoelectronic devices has been a recent interest in the fields of nanoscience and nanotechnology Photovoltaics are one of such systems in which MNPs have shown to be quite useful, due to unique physical, optical, magnetic, and electronic properties, including the metal nanoparticles synthesized in this research. Owing to the challenges with the most common physical and chemical methods of preparing MNPs, including the use of high temperatures, toxic reducing agents, and environmentally hazardous organic solvents, ther

APA, Harvard, Vancouver, ISO, and other styles

8

Li, Yonghui. "Biodegradable poly(lactic acid) nanocomposites: synthesis and characterization." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/8543.

Full text

Abstract:

Doctor of Philosophy<br>Department of Grain Science and Industry<br>X. Susan Sun<br>Biobased polymers derived from renewable resources are increasingly important due to acute concerns about the environmental issues and limited petroleum resources. Poly(lactic acid) (PLA) is such a polymer that has shown great potential to produce biodegradable plastics. However, low glass transition temperature (Tg), low thermal stability, slow biodegradation rate, and high cost limit its broad applications. This dissertation seeks to overcome these limitations by reinforcing PLA with inorganic nanoparticles a

APA, Harvard, Vancouver, ISO, and other styles

9

Abdelaaziz, Muftah Ali. "Synthesis of nanocomposites with nano-TiO2 particles and their applications as dental materials." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1534.

Full text

Abstract:

Thesis submitted in fulfilment of the requirements for the degree Magister of Technology: Dental Technology In the Faculty of Health and Wellness Sciences At the Cape Peninsula University of Technology, 2012<br>A study of the modification of dental nanocomposites with nanosized fillers is presented. The incorporation of TiO2 (titania) nanoparticles, via a silane chemical bond, to a standard dental acrylic resin matrix was explored to determine whether there was an increase in the wear resistance, flexural strength and surface hardness properties of the dental nanocomposites. The principal aim

APA, Harvard, Vancouver, ISO, and other styles

10

Wang, Huan. "Synthesis, purification and applications of carbon nanomaterials and their polymer nanocomposites /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CBME%202008%20WANG.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Paulsen, Zuraan. "The effects of capping agents on the synthesis of magnetic-luminescent Fe₃O₄ -InP/ZnSe nanocomposite material." University of the Western Cape, 2015. http://hdl.handle.net/11394/5066.

Full text

Abstract:

>Magister Scientiae - MSc<br>Magnetic luminescent nanoparticles of an iron oxide (Fe₃O₄) superparamagnetic core and an indium phosphide/zinc selenide (InP/ZnSe) quantum dot shell are reported. The magnetic nanoparticles (MNP’s) and quantum dots (QD’s) were each synthesized separately before conjugation. The MNP’s were functionalized with a thiol-group allowing the QD shell to bind to the surface of the MNP by the formation of a thiol-metal bond. The nanocomposite was capped with 3-mercaptopropionic acid, 1-propanethiol, 2-methyl-1-propanethiol and their properties investigated using the charac

APA, Harvard, Vancouver, ISO, and other styles

12

ZHU, YANRONG. "SYNTHESIS, CHARACTERIZATION AND CORROSION PERFORMANCE OF POLYANILINE-MONTMORILLONITE CLAY NANOCOMPOSITES." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1058368988.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Wang, Qi. "Electrochemical synthesis of CeO2 and CeO2/montmorillonite nanocomposites." Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc4378/.

Full text

Abstract:

Nanocrystalline cerium oxide thin films on metal and semiconductor substrates have been fabricated with a novel electrodeposition approach - anodic oxidation. X-ray diffraction analysis indicated that as-produced cerium oxide films are characteristic face-centered cubic fluorite structure with 5 ~ 20 nm crystal sizes. X-ray photoelectron spectroscopy study probes the non-stoichiometry property of as-produced films. Raman spectroscopy and Scanning Electron Microscopy have been applied to analyze the films as well. Deposition mode, current density, reaction temperature and pH have also been inve

APA, Harvard, Vancouver, ISO, and other styles

14

Dang, Xiangnan. "M13 bacteriophage-enabled assembly of nanocomposites : synthesis and application in energy conversion devices." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82172.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 206-217).<br>Lack of energy supply and non-uniform distribution of traditional energy sources, such as coal, oil, and natural gas, have brought up tremendous social issues. To solve these issues, highly efficient energy conversion devices inc

APA, Harvard, Vancouver, ISO, and other styles

15

Vaughan, Lisa Ann. "Enviromentally benign synthesis and application of some spinel ferrite nanopartilces." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44876.

Full text

Abstract:

In this thesis, the commercial viability of the aminolytic synthesis method is explored through robustness, versatility, and waste reduction studies. We report the preparation of metal precursors and the development of a synthetic approach using an aminolytic reaction of metal carboxylates in oleylamine and non-coordinating solvent. Manganese doping in the cobalt ferrites allows for the investigation of the couplings. All the compositions in the series Co1-xMnxFe2O4, 0.0  x  1.0 were synthesized via the aminolytic reaction. The coercivity decreases with increasing Mn2+ concentration due

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Jia. "Synthesis and properties of polyimide/organo clay and polyimide/polyaniline-modified clay nanocomposites." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282055379.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Yuan, Qiuhua. "Electrochemical Synthesis and Characterization of Inorganic Materials from Aqueous Solutions." Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5604/.

Full text

Abstract:

The dissertation consists of the following three sections: 1. Hydroxyapatite (HA) coatings. In this work, we deposited HA precursor films from weak basic electrolytic solution (pH= 8-9) via an electrochemical approach; the deposits were changed into crystallite coatings of hydroxyapatite by sintering at specific temperatures (600-800 ºC). The formed coatings were mainly characterized by powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). XRD patterns show well-defined peaks of HA when sintered under vacuum conditions. FTIR mea

APA, Harvard, Vancouver, ISO, and other styles

18

Aykanat, Aydin. "Synthesis, Characterization and Cure Kinetics of Polyaniline Modified Clay / Epoxy Nanocomposites." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212088154.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Bastos, Arrieta Julio. "Bifunctional nanocomposites: surface modification of reactive matrices with functional metal nanoparticles by intermatrix synthesis technique." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/285551.

Full text

Abstract:

En aquesta Tesi Doctoral s'ha desenvolupat la tècnica de Síntesi intermatricial (IMS), com a una metodologia factible per la modificació de matrius reactives amb nanopartícules (NPs) basada en les propietats d'intercanvi iònic de la superfície que es vol modificar; com ara: resines intercanviadores iòniques i la innovació en la modificació de nanofilms polimèrics funcionalitzats, nanotubs de carboni (CNTs) i nanodiamantes (NDs). L’efecte dels materials nanoestructutrats sobre el medi ambient és un dels temes més importants a la tecnologia en els darrers anys. A causa del seu alt grau de

APA, Harvard, Vancouver, ISO, and other styles

20

Bhagyaraj, Sneha. "Green synthesis, characterization and applications of cdse based core-shell quantum dots and silver nanocomposites." Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/2318.

Full text

Abstract:

Thesis (DTech (Chemistry))--Cape Peninsula University of Technology, 2015.<br>Researchers around the world are now focusing on inculcating green chemistry principles in all level of research especially in nanotechnology to make these processes environmental friendly. Nanoparticles synthesized using green chemistry principles has several advantages such as simplicity, cost effectiveness, compatibility for biomedical and pharmaceutical applications and large scale production for commercial purpose. Based on this background, this thesis present the design, synthesis, characterization and app

APA, Harvard, Vancouver, ISO, and other styles

21

ROSSI, GREGORY B. "BOTTOM-UP SYNTHESIS OF POLYMER NANOCOMPOSITES: ABSORPTION OF NANOPARTICULATE TO EMULSION PMMA." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1014320612.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Joe-Lahai, Sormana. "Combinatorial Synthesis and High-Throughput Characterization of Polyurethaneureas and Their Nanocomposites with Laponite." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/11640.

Full text

Abstract:

Segmented polyurethaneureas (SPUU) are thermoplastic elastomers with excellent elastic properties, high abrasion resistance and tear strength, making them very useful in numerous industrial applications ranging from microelectronics (slurry pad) to biomedical (artificial heart vessels) applications. The elastic and mechanical properties of these materials are strongly influenced by their two phase morphology. The factors that influence phase separation include difference in polarity between the hard and soft phases, composition and temperature. In general good phase separation results in m

APA, Harvard, Vancouver, ISO, and other styles

23

Khaleed, Abubakar Abubakar. "Synthesis of nickel oxide/hydroxides and their nanocomposites with carbon materials for supercapacitor and gas sensing applications." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/63307.

Full text

Abstract:

The goal of this thesis is to produce NiO- and Ni(OH)2-carbon based nanocomposites and explore their possible adoption as active electrode materials in supercapacitor and gas sensing applications. Field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray powder diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermal gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and gas adsorption analyses were utilized to evaluate the structure and morphology of

APA, Harvard, Vancouver, ISO, and other styles

24

Song, Min Kyu. "Synthesis and characterization of nanostructured, mixed-valent compounds for electrochemical energy storage devices." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45925.

Full text

Abstract:

The performances of current electrical energy storage systems (both batteries and electrochemical capacitors) are not capable of meeting the ever-increasing demands of emerging technologies. This is because batteries often suffer from slow power delivery, limited life-time, and long charging time whereas electrochemical capacitors suffer from low energy density. While extensive efforts have been made to the development of novel electrode materials, progress has been hindered by the lack of a profound understanding on the complex charge storage mechanism. Therefore, the main objective of this r

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Qiuhong. "Carbon Nanotubes on Carbon Fibers: Synthesis, Structures and Properties." Dayton, Ohio : University of Dayton, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1272515887.

Full text

Abstract:

Thesis (Ph.D. in Materials Engineering) -- University of Dayton.<br>Title from PDF t.p. (viewed 06/23/10). Advisor: Liming Dai. Includes bibliographical references (p. 136-162). Available online via the OhioLINK ETD Center.

APA, Harvard, Vancouver, ISO, and other styles

26

Escamilla, Perez Angel Manuel. "Non-hydrolytic sol-gel synthesis of TiO₂-based electrode materials for Li-ion batteries." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTT181/document.

Full text

Abstract:

Le procédé sol-gel non-hydrolytique (SGNH) offre une alternative intéressante au procédés sol-gel classiques. Notamment, la « voie éther », impliquant la réaction de précurseurs chlorures ou oxychlorures avec avec un éther comme donneur d’oxygène, est une méthode simple et efficace pour la préparation d’oxydes et d’oxydes mixtes mésoporeux. Les batteries Li-ion sont omniprésentes aussi bien dans des applications portables que pour des véhicules électriques ou hybrides. Cependant, les performances des électrodes commerciales sont insuffisantes pour des applications haute puissance. TiO2 est un

APA, Harvard, Vancouver, ISO, and other styles

27

Etmimi, Hussein Mohamed. "New approaches to the synthesis and exfoliation of polymer/functional graphene nanocomposites by miniemulsion polymerization." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20119.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: New methods are described for the synthesis of polymer/graphite nanocomposites using the miniemulsion polymerization process. Natural graphite was functionalized by oxidation to produce graphite oxide (GO) nanosheets. Poly(styrene-co-butyl acrylate) (poly(St-co-BA)) nanocomposite latices containing GO nanosheets were successfully synthesized using miniemulsion as a one-step nano-incorporation technique. The approach followed included expanding the GO nanosheets in situ during the miniemulsification step and then polymerizi

APA, Harvard, Vancouver, ISO, and other styles

28

Molina, Higgins Maria C. "Au@TiO2 Nanocomposites Synthesized by X-ray Radiolysis as Potential Radiosensitizers." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5932.

Full text

Abstract:

Radiosensitization is a novel targeted therapy strategy where chemical compounds are being explored to enhance the sensitivity of the tissue to the effects of ionizing radiation. Among the different radiosensitizers alternatives, nanomaterials have shown promising results by enhancing tumor injury through the production of free radicals and reactive oxygen species (ROS). In this work, Gold-supported titania (Au@TiO2) nanocomposites were synthesized through an innovative strategy using X-ray irradiation, and their potential as radiosensitizers was investigated. Radiosensitization of Au@TiO2 nan

APA, Harvard, Vancouver, ISO, and other styles

29

Godinho, Vanda. "Synthesis and characterization of magnetron sputtered thin films of the Ti-Al-Si-N(O) system." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209969.

Full text

Abstract:

The aim of this Thesis was on one side to contribute to a better understanding of the phases formed in the TiAlSiN(O) system and the influence of impurities on their properties. On the other side it was also aimed in the Thesis to individually study the phases forming the nanocomposite. <p><p>In each chapter the individual conclusions from that particular chapter are presented, a summary of the most relevant conclusions and achievements is listed below. <p><p><p>¡à\<br>Doctorat en Sciences de l'ingénieur<br>info:eu-repo/semantics/nonPublished

APA, Harvard, Vancouver, ISO, and other styles

30

Abdallah, Jassem. "Polycarbonate-silsesquioxane and polycarbonate-siloxane nanocomposites: synthesis, characterization, and application in the fabrication of porous inorganic films." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/37271.

Full text

Abstract:

Three types of poly(norbornane carbonate) or PNC oligomers were synthesized and characterized via spectroscopic methods and elemental analyses to validate their chemical structures. Using the results from proton nuclear magnetic resonance (1H NMR) experiments, the degree of polymerization and size of each PNC chain was estimated via end-group analysis. All three types of PNC structures were both thermally-labile and acidolytically-labile, allowing them to be used as sacrificial materials in both direct-write and thermally-processed template systems. Thermogravimetric analysis (TGA) data was

APA, Harvard, Vancouver, ISO, and other styles

31

Adireddy, Shivaprasad Reddy. "High Yield Solvothermal Synthesis of Hexaniobate Based Nanocomposites via the Capture of Preformed Nanoparticles in Scrolled Nanosheets." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1726.

Full text

Abstract:

The ability to encapsulate linear nanoparticle (NP) chains in scrolled nanosheets is an important advance in the formation of nanocomposites.These nanopeapods (NPPs) exhibit interesting properties that may not be achieved by individual entities. Consequently, to fully exploit the potential of NPPs, the fabrication of NPPs must focus on producing composites with unique combinations of morphologically uniform nanomaterials. Various methods can produce NPPs, but expanding these methods to a wide variety of material combinations can be difficult. Recent work in our group has resulted in the in sit

APA, Harvard, Vancouver, ISO, and other styles

32

Foston, Marcus Bernard. "Cyclic, tethered and nanoparticulate silicones for material modification." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24762.

Full text

Abstract:

Thesis (Ph.D.)--Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Dr. Haskell W. Beckham; Committee Member: Dr. Anselm Griffin; Committee Member: Dr. Johannes Leisen; Committee Member: Dr. Sankar Nair; Committee Member: Dr. Uwe Bunz.

APA, Harvard, Vancouver, ISO, and other styles

33

Matsumura, Masashi. "Synthesis, electrical properties, and optical characterization of hybrid zinc oxide/polymer thin films and nanostructures." Birmingham, Ala. : University of Alabama at Birmingham, 2007. https://www.mhsl.uab.edu/dt/2009r/matsumura.pdf.

Full text

Abstract:

Thesis (Ph. D.)--University of Alabama at Birmingham, 2007.<br>Title from PDF t.p. (viewed Feb. 3, 2010). Additional advisors: Derrick R. Dean, Sergey B. Mirov, Sergey Vyazovkin, Mary Ellen Zvanut. Includes bibliographical references (p. 122-145).

APA, Harvard, Vancouver, ISO, and other styles

34

Gass, James. "Functional Magnetic Nanoparticles." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4047.

Full text

Abstract:

Nanoparticle system research and characterization is the focal point of this research and dissertation. In the research presented here, magnetite, cobalt, and ferrite nanoparticle systems have been explored in regard to their magnetocaloric effect (MCE) properties, as well as for use in polymer composites. Both areas of study have potential applications across a wide variety of interdisciplinary fields. Magnetite nanoparticles have been successfully dispersed in a polymer. The surface chemistry of the magnetic nanoparticle proves critical to obtaining a homogenous and well separated high densi

APA, Harvard, Vancouver, ISO, and other styles

35

Di, Carlo Lidia. "Nanocomposite cathodic materials for secondary cells." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2017. http://dx.doi.org/10.18452/17765.

Full text

Abstract:

Hexagonales Wolframbronze (HTB)–FeF3·0.33H2O Xerogel und eine HTB– FeF3·0.33H2O/GO Nanoverbindung wurden zunächst durch einen fluorolytischen Sol-Gel Ansatz bei Raumtemperatur in MeOH erhalten und ihre elektrochemischen Eigenschaften bewertet. Operando Mössbauer Spektroskopie und Röntgendiffraktometrie (XRD) wurden verwendet, um den Mechanismus während der Reaktion mit Lithium zu untersuchen. Das Fluorid zeigte ein komplexes Verhalten und den strukturellen Zerfall der HTB Phase sowie eine allmähliche Umwandlung in Fe-F2–Rutil–ähnliche Nanodomänen, welche sich als Hauptkomponente im Verl

APA, Harvard, Vancouver, ISO, and other styles

36

Davis-Wheeler, Chin Clare. "Platinum@Hexaniobate Nanopeapods: Sensitized Composite Architectures for Photocatalytic Hydrogen Evolution Under Visible Light Irradiation." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2503.

Full text

Abstract:

Hydrogen fuel is one of the most important areas of research in the field of renewable energy development and production. Hydrogen gas can be generated by fuel cells, water electrolyzers, and heterogeneous nanoscale catalysts. It can be burned to directly release chemical energy or condensed for storage and transport, providing fuel for combustion devices or storing excess energy generated by renewable sources such as wind turbines and concentrated solar power assemblies. While platinum is the most active catalyst for hydrogen reduction, its high cost significantly deters its utilization in ad

APA, Harvard, Vancouver, ISO, and other styles

37

OLIVEROS, MARTIN EMILIO MENDOZA. "SYNTHESIS, PROCESSING AND CHARACTERIZATION OF CU-CNT NANOCOMPOSITE MATERIALS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=13223@1.

Full text

Abstract:

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>O aumento do interesse em materiais nanoestruturados, nos anos recentes, tem incentivado o desenvolvimento de materiais compósitos de matriz metálica reforçados com nanotubos de carbono. No presente estudo foi produzido um material nano compósito de matriz de cobre contendo nanotubos de carbono (CNT 2% peso), a partir de síntese por métodos químicos. O procedimento começa pela dissociação do nitrato de cobre na presença de CNT e um tensoactivo aniônico a 250°C e sua p

APA, Harvard, Vancouver, ISO, and other styles

38

Fulvio, Pasquale Fernando. "Synthesis and Characterization of Ordered Mesoporous Inorganic Nanocomposite Materials." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1258990927.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Vilela, Carla Andreia Cunha. "Synthesis and characterization of cellulose/CaCO3 nanocomposites." Master's thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/3030.

Full text

Abstract:

Mestrado em Ciência e Engenharia de Materiais<br>Nanocompósitos de celulose/CaCO3 foram preparados através da reacção controlada em meio alcalino entre cloreto de cálcio e carbonato de dimetilo na presença de fibras de celulose. O efeito de vários parâmetros reaccionais (tempo e temperatura de reacção, quantidade de fibra, e conteúdo de grupos carboxilo na celulose) nas características dos nanocompósitos foi avaliado por ICP-AES, IR, XRD, SEM, TGA, ToF-SIMS e XPS. Os resultados indicam que as condições de hidrólise influenciam a quantidade e morfologia das partículas de CaCO3 depositadas na su

APA, Harvard, Vancouver, ISO, and other styles

40

Gonçalves, Gil Alberto Batista. "Synthesis and characterization of TiO2/cellulose nanocomposites." Master's thesis, Universidade de Aveiro, 2007. http://hdl.handle.net/10773/3006.

Full text

Abstract:

Mestrado em Engenharia de Materiais<br>O objectivo principal desta tese foi a preparação, caracterização e estudo de possíveis aplicações de novos nanocompósitos de TiO2/celulose. Numa primeira fase, os nanocompósitos de TiO2/celulose foram preparados a partir da síntese in situ do TiO2 na presença de fibras celulósicas. Para esta síntese estudaram-se os parâmetros experimentais que permitem controlar a hidrólise do tetracloreto de titânio (TiCl4) e ureia, na presença de fibras celulósicas. Através desta abordagem in situ verificou-se que a concentração de ureia permite controlar a quantidade

APA, Harvard, Vancouver, ISO, and other styles

41

Sener, Canan. "Synthesis And Characterization Of Pd-mcm-type Mesoporous Nanocomposite Materials." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12606987/index.pdf.

Full text

Abstract:

Noble metal incorporated MCM-41 based nanostructured mesoporous materials have attracted the attention of material researchers in recent years. Sorption characteristics of MCM materials can be improved by surface modification techniques. Besides surface modification, metal nanoparticles can also be produced within the pores of mesoporous materials. MCM-41 can act as host for several metal nanoparticles such as palladium. The present study is focused on the synthesis of Pd-MCM-41 nanocomposite catalytic materials by using different direct synthesis procedures, as well as an impregnation metho

APA, Harvard, Vancouver, ISO, and other styles

42

England, M. W. "Synthesis and characterisation of self-assembled host-guest nanocomposite materials." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682677.

Full text

Abstract:

One of the challenges within nanoscience is the formation of nanoparticles of a consistent size, shape, and spatial arrangement. One solution to this problem is to incorporate guest molecules into larger hosts for confined nanoscale synthesis. The central theme of this thesis is the formation of novel nanocomposites using this host-guest approach. Cross-linked tetragonal lysozyme crystals and hydrophobic 2:1 phyllosilicate clays were utilized as the host materials for the synthesis of nanostructured arrays, and were characterised using optical microscopy, SEM, TEM, EDX, FTIR, UV-vis and TGA. T

APA, Harvard, Vancouver, ISO, and other styles

43

Bray, Tommaso. "Synthesis and Characterization of Quantum Dots doped Polymer Nanocomposites." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

Find full text

Abstract:

Lo studio tratterà la creazione e caratterizzazione di polimeri nanoadditivati con quantum-dots per applicazioni nel campo delle alte tensioni. Il principale scopo del lavoro sarà valutare in che modo la presenza di quantum-dots, additivi di dimensione nanometrica con struttura di tipo core-shell, modifichi alcune proprietà termiche ed elettriche del materiale base, quali ad esempio la trasmissione del calore, l’accumulo di carica di spazio e la resistenza alla sollecitazione elettrica, in modo da migliorare le prestazioni del materiale base per le applicazioni industriali. In particolare, l’a

APA, Harvard, Vancouver, ISO, and other styles

44

Bueno, Marcos Roberto Paulino. "Materiais nanoestruturados sintéticos tipo esmectitas: sua síntese, caracterização e aplicação em nanocompósitos de polietileno." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/24325.

Full text

Abstract:

Materiais naturais nanoestruturados, tipo smectita, têm sido amplamente usados em nanocompósitos poliméricos, com ganhos expressivos em muitas propriedades. Porém, devido a sua natureza polar, seu uso em nanocompósitos de poliolefinas apresenta uma série de problemas. Entre esses problemas está a dificuldade de esfoliação na matriz, o que geralmente resulta um sistema não nano-estruturado e, por conseqüência, com pouco ou nenhum ganho em propriedades. Para tentar resolver esse problema, materiais tipo esmectita têm sido modificados com sais de amônio quartenário. Esses, por sua vez, possuem ca

APA, Harvard, Vancouver, ISO, and other styles

45

Becerril-Garcia, Hector Alejandro. "DNA-Templated Nanomaterials." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1823.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Blake, Aaron Joseph. "Synthesis and Characterization of Graphene Oxide/Sulfur Nanocomposite for Lithium-Ion Batteries." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1382173213.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Khawaja, Mohamad. "Synthesis and Fabrication of Graphene/Conducting Polymer/Metal Oxide Nanocomposite Materials for Supercapacitor Applications." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5715.

Full text

Abstract:

The rising energy consumption worldwide is leading to significant increases in energy production with fossil fuels being the major energy source. The negative environmental impact of fossil fuel use and its finite nature requires the use of alternative sources of energy. Solar energy is a clean alternative energy source; however, its intermittent nature is a major impediment that needs to be reduced or eliminated by the development of cost effective energy storage. Thermal storage in tanks filled typically with molten salt at elevated temperatures is widely used in concentrating solar power pl

APA, Harvard, Vancouver, ISO, and other styles

48

Salimian, Maryam. "Advances in multifunctional nickel/reduced graphene oxide nanocomposites, synthesis and characterization." Doctoral thesis, Universidade de Aveiro, 2018. http://hdl.handle.net/10773/23709.

Full text

Abstract:

Doutoramento em Engenharia Mecânica<br>O grafeno é constituído por uma monocamada de átomos de carbono dispostos numa espécie de rede hexagonal perfeita. Devido às suas propriedades extraordinárias, este nanomaterial tem suscitado um grande interesse tanto no setor científico como no industrial. A este respeito, a investigação em torno do grafeno mostrou um aumento exponencial em áreas tão diferentes como a energia, biomedicina, eletrónica, entre outras. O óxido de grafeno (GO), um dos derivados de grafeno, foi considerado como um substrato interessante para o desenvolvimento de nanocomposito

APA, Harvard, Vancouver, ISO, and other styles

49

Stein, Itai Y. "Synthesis and characterization of next-generation multifunctional material architectures : aligned carbon nanotube carbon matrix nanocomposites." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81728.

Full text

Abstract:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 129-141).<br>Materials comprising carbon nanotube (CNT) aligned nanowire (NW) polymer nanocomposites (A-PNCs) have emerged as promising architectures for next-generation multifunctional applications. Enhanced operating regimes, such as operating temperatures, motivate the study of CNT aligned NW ceramic matrix nanocomposites (A-CMNCs). Here we report the synthesis of CNT A-CMNCs through the pyrolysis o

APA, Harvard, Vancouver, ISO, and other styles

50

Lindquist, Mattias. "Self Lubrication on the Atomic Scale : Design, Synthesis and Evaluation of Coatings." Doctoral thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8443.

Full text

Abstract:

In this thesis a new design concept of tribologically active coatings aimed for low friction applications, have been explored. Materials modeled by ab initio DFT calculations were realized through deposition of carbide and nanocomposite coatings by DC-magnetron sputtering. The design concept employs destabilization of a carbide material by alloying with a weak carbide-forming element, which refines the structure into a nanocomposite. The destabilization creates a driving force for superficial ejection of carbon in a tribological contact, forming a lubricious graphitic carbon layer. The otherwi

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!