Gas sorption in engineered carbon nanospaces

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Gas sorption in engineered carbon nanospaces

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/9666

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dc.contributor.advisor Pfeifer, Peter en_US
dc.contributor.author Burress, Jacob W., 1983- en_US
dc.coverage.spatial United States
dc.date.accessioned 2011-01-24T22:38:55Z
dc.date.available 2011-01-24T22:38:55Z
dc.date.issued 2009 en_US
dc.date.submitted 2009 Summer en_US
dc.identifier.other BurressJ-110609-D491 en_US
dc.identifier.uri http://hdl.handle.net/10355/9666
dc.description Title from PDF of title page (University of Missouri--Columbia, viewed on September 13, 2010). en_US
dc.description The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. en_US
dc.description Dissertation advisor: Dr. Peter Pfeifer. en_US
dc.description Vita. en_US
dc.description Includes bibliographical references. en_US
dc.description Ph. D. University of Missouri--Columbia 2009. en_US
dc.description Dissertations, Academic -- University of Missouri--Columbia -- Physics. en_US
dc.description.abstract Vehicular storage of gaseous fuels is a key enabling technology for the two pillars of a non-petroleum based transportation economy natural-gas vehicles and hydrogen fuel cell vehicles. My research focuses on the development of nanoporous carbons as high-capacity storage materials for natural gas (methane) and molecular hydrogen. The carbons have surface areas of up to 3500 m²/g, porosities of up to 0.8. Extensive characterizations of the surface and pore structure of samples were performed. Characterizations include surface areas and pore-size distributions from nitrogen adsorption at 77 K; pore-size distribution from methane adsorption at 293 K; scanning and transmission electron microscopy; and chemical composition analysis. In two case studies, it was found that 40% of all surface sites reside in pores of width ~0.7 nm and binding energy ~9 kJ/mol, and 60% of sites in pores of width >1.0 nm and binding energy ~5 kJ/mol. It was furthermore found that we can experimentally distinguish between the situation in which molecules do (mobile adsorption) or do not (localized adsorption) move parallel to the surface, how such lateral dynamics affects the hydrogen storage capacity, and how the two situations are controlled by the vibrational frequencies of adsorbed hydrogen molecules parallel and perpendicular to the surface: in the two case studies, adsorption is mobile at 293 K, and localized at 77 K. These findings make a strong case that, and how, hydrogen storage capacities in nanoporous carbons can be optimized by suitable engineering of the nanopore space. en_US
dc.format.extent xviii, 150 pages en_US
dc.language.iso en_US en_US
dc.publisher University of Missouri--Columbia en_US
dc.relation.ispartof 2009 Freely available dissertations (MU) en_US
dc.subject nanoporous carbon;nanospace en_US
dc.subject.lcsh Hydrogen as fuel en_US
dc.subject.lcsh Gas as fuel en_US
dc.subject.lcsh Supercapacitors en_US
dc.subject.lcsh Fuel cells en_US
dc.subject.lcsh Storage facilities en_US
dc.subject.lcsh Energy storage en_US
dc.subject.lcsh Hydrogen -- Storage en_US
dc.subject.lcsh Hybrid electric vehicles en_US
dc.title Gas sorption in engineered carbon nanospaces en_US
dc.type Thesis en_US
thesis.degree.discipline Physics en_US
thesis.degree.grantor University of Missouri--Columbia en_US
thesis.degree.name Ph. D. en_US
thesis.degree.level Doctoral en_US
dc.identifier.oclc 695982095 en_US
dc.relation.ispartofcommunity University of Missouri-Columbia. Graduate School. Theses and Dissertations. Dissertations. 2009 Dissertations


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