Novel synthesis of silica-graphene composites

Two of the most interesting materials in composite chemistry are silica and graphene. Both possess unique properties and features to make them suitable candidates as parent materials for a composite. The coupling of silica to graphene is demonstrated in this paper.This dissertation research presents...

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Main Author: JULIET, DALAGAN
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Published: Archīum Ateneo 2012
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Online Access:https://archium.ateneo.edu/theses-dissertations/197
http://rizalls.lib.admu.edu.ph/#section=resource&resourceid=167308847&currentIndex=0&view=fullDetailsDetailsTab
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spelling ph-ateneo-arc.theses-dissertations-13232021-07-06T02:36:30Z Novel synthesis of silica-graphene composites JULIET, DALAGAN Two of the most interesting materials in composite chemistry are silica and graphene. Both possess unique properties and features to make them suitable candidates as parent materials for a composite. The coupling of silica to graphene is demonstrated in this paper.This dissertation research presents three different methods to form silica-graphene composites. First method uses adsorption chemistry to bind graphene to diatom silica via physisorption interaction. The second employs deposition of graphene on diatom silica via metal-catalyzed chemical vapor deposition (CVD) technique. The last method which promotes covalent interaction between diatom silica, mineral silica and synthetic silica to graphene oxide (GO) is the hydrothermal process. This induces the simultaneous functionalization and partial reduction of GO in the presence of silica. The "discovery" of the hydrothermal technique is the highlight of the research. Results revealed that each composite presents different application possibilities. The GO-diatom silica can possibly be used as electrode for the detection of cationic biomolecules. The CVD graphene-diatom silica can be applied for biological templating to fabricate optoelectronics with 3D scaffolds while mesoporous silica-GO composite can possibly act as spacer to prevent restacking of graphene sheets. 2012-01-01T08:00:00Z text https://archium.ateneo.edu/theses-dissertations/197 http://rizalls.lib.admu.edu.ph/#section=resource&resourceid=167308847&currentIndex=0&view=fullDetailsDetailsTab Theses and Dissertations (All) Archīum Ateneo Graphene Silica Chemistry
institution Ateneo De Manila University
building Ateneo De Manila University Library
continent Asia
country Philippines
Philippines
content_provider Ateneo De Manila University Library
collection archium.Ateneo Institutional Repository
topic Graphene
Silica
Chemistry
spellingShingle Graphene
Silica
Chemistry
JULIET, DALAGAN
Novel synthesis of silica-graphene composites
description Two of the most interesting materials in composite chemistry are silica and graphene. Both possess unique properties and features to make them suitable candidates as parent materials for a composite. The coupling of silica to graphene is demonstrated in this paper.This dissertation research presents three different methods to form silica-graphene composites. First method uses adsorption chemistry to bind graphene to diatom silica via physisorption interaction. The second employs deposition of graphene on diatom silica via metal-catalyzed chemical vapor deposition (CVD) technique. The last method which promotes covalent interaction between diatom silica, mineral silica and synthetic silica to graphene oxide (GO) is the hydrothermal process. This induces the simultaneous functionalization and partial reduction of GO in the presence of silica. The "discovery" of the hydrothermal technique is the highlight of the research. Results revealed that each composite presents different application possibilities. The GO-diatom silica can possibly be used as electrode for the detection of cationic biomolecules. The CVD graphene-diatom silica can be applied for biological templating to fabricate optoelectronics with 3D scaffolds while mesoporous silica-GO composite can possibly act as spacer to prevent restacking of graphene sheets.
format text
author JULIET, DALAGAN
author_facet JULIET, DALAGAN
author_sort JULIET, DALAGAN
title Novel synthesis of silica-graphene composites
title_short Novel synthesis of silica-graphene composites
title_full Novel synthesis of silica-graphene composites
title_fullStr Novel synthesis of silica-graphene composites
title_full_unstemmed Novel synthesis of silica-graphene composites
title_sort novel synthesis of silica-graphene composites
publisher Archīum Ateneo
publishDate 2012
url https://archium.ateneo.edu/theses-dissertations/197
http://rizalls.lib.admu.edu.ph/#section=resource&resourceid=167308847&currentIndex=0&view=fullDetailsDetailsTab
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