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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Synthesis and characterizations of nanostructured MnO2 electrodes for supercapacitors applications

Mothoa, Sello Simon January 2010 (has links)
<p>The objective of this research was to develop highly efficient and yet effective MnO2 electrode materials for supercapacitors applications. Most attention had focussed on MnO2 as a candidate for pseudo-capacitor, due to the low cost of the raw material and the fact that manganese is more environmental friendly than any other transition metal oxide system. The surface area and pore distribution of MnO2 can be controlled by adjusting the reaction time. The MnO2 synthesised under optimum conditions display high capacitance, and exhibit good cycle profile. This work investigates the ways in which different morphological structures and pore sizes can affect the effective capacitance. Various -MnO2 were successfully synthesised under low temperature conditions of 70 oC and hydrothermal conditions at 120 oC. The reaction time was varied from 1 to 6 hours to optimise the conditions. KMnO4 was reduced by MnCl.H2O under low temperature, whereas MnSO4.4H2O, (NH4)2S2O8 and (NH4)2SO4 were co-precipitated under hydrothermal conditions in a taflon autoclave to synthesise various -MnO2 nano-structures.</p>
12

Fabrication and characterization of one dimensional ZnO nanostructures /

Cheng, Chun. January 2009 (has links)
Includes bibliographical references (p. 136-150).
13

Localized-denisty-matrix method and its application to nano-size systems

Liang, Wanzhen. January 2001 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 148-161).
14

Experimental investigations of magnetic and magneto-rheological materials and their rigidification properties /

Glaser, Radek, January 2009 (has links)
Thesis (M.S.) in Mechanical Engineering--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaves 214-219).
15

A catalytic architecture composed of titanium silicalite-1 and nanostructured support for oxime synthesis /

Yip, Chi Kin. January 2009 (has links)
Includes bibliographical references (p. 205-222).
16

On the fabrication, characterization and simulation of one dimensional cobalt and gadolinium nanostructures

Liu, Shuangyi. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2010. / Includes bibliographical references (leaves 124-125). Also available in print.
17

Polyamide-layered silicate nanocomposites by melt processing

Fornes, Timothy Dean, Paul, Donald R., January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Supervisor: Donald R. Paul. Vita. Includes bibliographical references. Available also from UMI Company.
18

First-principles study on hard/soft SmCo5/Co(Fe) nanocomposite magnetic materials

Wu, Dangxin. January 2008 (has links)
Thesis ( Ph.D.) -- University of Texas at Arlington, 2008.
19

A mathematical model development and sensitivity analysis of two photon polymerization for 3D micro/nano fabrication

Uppal, Nitin. January 2008 (has links)
Thesis (Ph.D.) -- University of Texas at Arlington, 2008.
20

Organic/inorganic nanostructured materials towards synergistic mechanical and optical properties /

Gunawidjaja, Ray. January 2009 (has links)
Thesis (Ph.D)--Industrial and Systems Engineering, Georgia Institute of Technology, 2010. / Committee Chair: Tsukruk, Vladimir; Committee Member: Bucknall, David; Committee Member: Kalaitzidou, Kyriaki; Committee Member: Shofner, Meisha; Committee Member: Tannenbaum, Rina. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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