Show simple item record



Item Description

dc.contributor.author Eliseo, Jennifer R en_US
dc.date.accessioned 2011-07-21T23:04:55Z en_US
dc.date.available 2011-07-21T23:04:55Z en_US
dc.date.issued 2007 en_US
dc.identifier.uri http://hdl.handle.net/10125/20473 en_US
dc.description Thesis (M.S.)--University of Hawaii at Manoa, 2007. en_US
dc.description Includes bibliographical references (leaves 87-92). en_US
dc.description viii, 92 leaves, bound ill. 29 cm en_US
dc.description.abstract Zinc borohydride (Zn(BH4)2) has been the focus of much recent research in the field of hydrogen storage. This material has a low decomposition temperature (around 85°C) and a high theoretical hydrogen capacity (8.5% H2). These studies include mechanochemical synthesis of zinc borohydride and its derivatives at room temperature without solvent following the reaction: ZnX2 + nMBH4-> Mn-2Zn(BH4)n + 2MX where M = Li, No, or K; X = Cl; and n = 1, 2, 3, or 4. Product mixtures were characterized by IR, XRD, and CPMAS B NMR spectroscopy. Analysis of material properties was completed by thermal decomposition mass spectrometry (TD-MS) and isothermal dehydrogenation studies. These fundamental studies confirmed the synthesis of novel borohydride materials. It was found that the milling of zinc chloride with a1ka1i borohydrides reduces the dehydrogenation temperature. However, upon dehydrogenation, both hydrogen and diborane are liberated. en_US
dc.language.iso en-US en_US
dc.relation Theses for the degree of Master of Science (University of Hawaii at Manoa) no. 4166 en_US
dc.rights All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner. en_US
dc.subject Boranes -- Synthesis en_US
dc.subject Transition metal hydrides -- Synthesis en_US
dc.title Synthesis and characterization of novel anionic transition metal borohydrides en_US
dc.type Thesis en_US
dc.type.dcmi Text en_US

Item File(s)

Description Files Size Format View
Restricted for viewing only M.S.Q111.H3_4166 MAY 2007_r.pdf 3.340Mb PDF View/Open
For UH users only M.S.Q111.H3_4166 MAY 2007_uh.pdf 3.334Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Search


Advanced Search

Browse

My Account

Statistics

About