Index Catalog // ScholarsArchive@OSU

Electrical characterization of thermally reduced graphite oxide

Creator:: Jewell, Ira
Abstract:: This thesis describes the transport properties observed in thermally treated graphite oxide (GO), which holds promise as an economical route to obtaining graphene. Graphene is a material consisting of a single atomic plane of carbon atoms and was first isolated as recently as 2004. Several isolation techniques have been investigated,...
Resource Type:: Masters Thesis
Full Text:: graphene obtained by the thermal reduction of graphite oxide (GO) in a forming gas ambient (N2/H2). For

Density Functional Theory Investigation of CH Coupling and CH Hydrogenation Reactions on Different Cobalt Surface Facets and Fischer-Tropsch Temperature Swing Reactor Optimization

Creator:: Petersen, Dennis F.
Abstract:: Fischer-Tropsh Synthesis is a chemical process that converts CO and H₂ (syngas) into long stable hydrocarbon chains to use as fuel. This process suffers from large product distribution that requires expensive post processing. In this study, the reaction mechanism of hydrocarbon chain growth on Co is investigated on different surface...
Resource Type:: Masters Thesis
Full Text:: by a microkinetic model of the reaction mechanism at the flat terrace. Previous studies have shown

The effect of catalyst properties on the synthesis of carbon nanotubes by plasma enhanced chemical vapor deposition

Creator:: Cheemalapati, Surya Venkata Sekhar
Abstract:: A study of the effect of catalyst properties on the synthesis of carbon nanotubes (CNTs) is done in this thesis. Three different metal alloy catalysts, Fe/Ti, Ni/Ti, Co/Ti, have been studied. Various atomic concentrations and thicknesses were cosputter deposited on clean Si wafers using AJA Orion 4 RF Magnetron sputter...
Resource Type:: Masters Thesis
Full Text:: investigation using Secondary ion mass spectrometry of suspected Fe catalyst poisoning due to reaction with Si

Investigation of the Initial Stages of SiGe(001) Dry Thermal Oxidation Using Ambient-Pressure X-ray Photoelectron Spectroscopy

Creator:: Lorona, Shane P.
Abstract:: Ambient-pressure X-ray photoelectron spectroscopy has been used to study the initial stages of dry thermal oxidation of Si₀.₆₀Ge₀.₄₀(001) grown epitaxially on Si(001). Chemical state resolved AP-XPS was performed at temperatures up to 300 ˚C and O₂ pressures up to 1 mbar. Comparisons were made to Si(001) and Ge(001). The Si...
Resource Type:: Masters Thesis
Full Text:: capability increased by a factor of three [18]. This was not achieved using classical HBT design, however

Effect of cosputtered catalyst on growth and alignment of carbon nanotubes by plasma enhanced chemical vapor deposition

Creator:: Gunderson, Eric P.
Abstract:: The effect of cosputtered catalyst on growth and alignment of carbon nanotubes (CNTs) grown by plasma enhanced chemical vapor deposition (PECVD) was investigated. Aligned CNTs were observed using a cosputtered catalytic metal deposited directly on boro-aluminosilicate glass. Catalytic metal alloys were sputtered directly onto the substrate using magnetron sputtering. Deposition...
Resource Type:: Masters Thesis
Full Text:: composed of nickel, the catalytic metal, and titanium. Catalyst layer morphologies are analyzed using a

Characterization of Spoilage Events on Flavored Milk Products by Paenibacillus odorifer

Creator:: Torres, Alejandro
Abstract:: Flavored milk is a growing category for dairy products; however, it is a perishable product that is subject to microbial spoilage which can lead to a negative consumer experience and lead to lost sales. Flavored milk processors communicated unique spoilage events related to their products, including color loss of strawberry...
Resource Type:: Masters Thesis
Full Text:: each graph is the average of three independent biological replicates overlaid with a fit curve using

Fabrication of a flexible glucose sensing catheter for human implantation

Creator:: Matthews, David J.
Abstract:: Flexible electronics processing techniques were applied to integrate a glucose sensor with a hormone-delivery catheter in order to create a cheap and minimally invasive method for patients with type 1 diabetes to continually monitor and control their blood sugar levels. Ultimately, this work intends to move toward the development of...
Resource Type:: Masters Thesis

Catalytic chemical vapor deposition synthesis of carbon nanotubes from methane on SiO supported Fe and Fe−Ni catalysts

Creator:: Nakagawa, Ayako
Abstract:: Influences of operating conditions on the production of carbon nanotubes (CNTs) were studied using Fe and Fe-Ni bimetallic catalysts supported on silicon monoxide (SiO). The catalysts were prepared in three steps: (1) impregnation of SiO powders with ferric nitride or combinations of ferric and nickel nitrides, (2) oxidation of nitrides...
Resource Type:: Masters Thesis
Full Text:: production of MWNTs by the CCVD of CH4, effects of catalytic activities of transition metals, reaction

Aerobic Cometabolism of cis-Dichloroethylene, 1,1,1-Trichloroethane, and 1,4-Dioxane by Polyvinyl Alcohol/Sodium Alginate Hydrogel Beads that Co-Entrapped Rhodococcus rhodochrous Strain ATCC 21198 and Slow-Release Growth Substrates: Column Studies

Creator:: Bailey, Kestrel
Abstract:: CisCis-Dichloroethylene (ciscis-DCE), 1,1,1-Trichloroethane (1,1,1-TCA), and 1,4-Dioxane (1,4-D) are chlorinated solvents used as solvents and degreasers in industrial cleaning agents that have become common groundwater contaminants. To develop an effective treatment method for these compounds, polyvinyl alcohol (PVA) and sodium alginate (SA) hydrogel beads were co-entrappcapsulated with Rhodococcus rhodochrous Strain ATCC...
Resource Type:: Masters Thesis
Full Text:: -TCA, and 1,4-D through the process of aerobic cometabolism. A column study was completed using

Aerobic Cometabolism of 1,4-Dioxane and cis-Dichloroethylene by Gellan Gum and Polyvinyl Alcohol/Sodium Alginate Hydrogel Beads Co-Encapsulated with Rhodococcus rhodochrous Strain ATCC 21198 and Slow-Release Growth Substrates: Batch, Column, and Toxicity Studies

Creator:: Conway, Sean P.
Abstract:: 1,4-Dioxane (dioxane) and cis-dichloroethylene (cDCE) are compounds commonly found in industrial cleaning and degreasing agents that are frequently present as groundwater contaminants. In an effort to develop a more effective treatment method for these compounds, hydrogel beads were fabricated with either gellan gum or a combination of polyvinyl alcohol (PVA)...
Resource Type:: Masters Thesis
Full Text:: transformation of cDCE. A column study was completed by packing a glass column with gellan gum beads co

ScholarsArchive@OSU

Electrical characterization of thermally reduced graphite oxide

Density Functional Theory Investigation of CH Coupling and CH Hydrogenation Reactions on Different Cobalt Surface Facets and Fischer-Tropsch Temperature Swing Reactor Optimization

The effect of catalyst properties on the synthesis of carbon nanotubes by plasma enhanced chemical vapor deposition

Investigation of the Initial Stages of SiGe(001) Dry Thermal Oxidation Using Ambient-Pressure X-ray Photoelectron Spectroscopy

Effect of cosputtered catalyst on growth and alignment of carbon nanotubes by plasma enhanced chemical vapor deposition

Characterization of Spoilage Events on Flavored Milk Products by Paenibacillus odorifer

Fabrication of a flexible glucose sensing catheter for human implantation

Catalytic chemical vapor deposition synthesis of carbon nanotubes from methane on SiO supported Fe and Fe−Ni catalysts

Aerobic Cometabolism of cis-Dichloroethylene, 1,1,1-Trichloroethane, and 1,4-Dioxane by Polyvinyl Alcohol/Sodium Alginate Hydrogel Beads that Co-Entrapped Rhodococcus rhodochrous Strain ATCC 21198 and Slow-Release Growth Substrates: Column Studies

Aerobic Cometabolism of 1,4-Dioxane and cis-Dichloroethylene by Gellan Gum and Polyvinyl Alcohol/Sodium Alginate Hydrogel Beads Co-Encapsulated with Rhodococcus rhodochrous Strain ATCC 21198 and Slow-Release Growth Substrates: Batch, Column, and Toxicity Studies

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