Index Catalog // ScholarsArchive@OSU

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:: Engineering presented on March 11, 2019. Title: Investigation of the Initial Stages of SiGe(001) Dry

Fundamental Investigations of Electrocatalysis: Mechanistic Implications of Catalyst Electronic Structure

Creator:: Carvalho, O. Quinn
Abstract:: Heterogeneous catalysis modulates the rate and selectivity of reaction processes by stabilizing a series of intermediate states on solid surfaces, facilitating the production of many commodity chemicals modern society relies upon. Conventional, thermal catalytic processes—conducted at elevated temperatures and pressures—source thermal, mechanical, and chemical potential energy from carbon-hydrogen bonds— combustion...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF O

Predicting the Effect of Local Conditions on Metal-oxides: Pt/γ-Al₂O₃ Interface and Degradation of α-Cr₂O₃ Passive Film

Creator:: Oware Sarfo, Kofi
Abstract:: Metal-oxides are very important in industrial applications such as thermal barrier coatings, corrosion protection, and heterogeneous catalysis. The wide variety of applications for metal-oxides are derived from the array of properties of metal-oxides. It is, therefore, important to understand and predict the conditions of synthesis and operation to optimize the...
Resource Type:: Dissertation
Full Text:: (Al), two-layers of aluminum (Al2), oxygen (O)) of !-Al2O3 based on HRTEM analysis of imbedded

Study of Garnet Type Electrolyte Li₇La₃Zr₂O₁₂ Structure and Electrochemical Performance

Creator:: Wang, Yan
Abstract:: Cubic phase Li₇La₃Zr₂O₁₂ (LLZO) is a promising solid electrolyte for all solid-state lithium-ion battery, due to its reasonable ionic conductivity, stable against metallic Li, wide chemical window, and thermal and chemical stability. The main aim of this thesis is to investigate the influences of different synthesis methods on the structure...
Resource Type:: Masters Thesis
Full Text:: energy Ea=0.45eV. Comparatively, LLZO thin film grown on MgO(001) substrate has Li ionic conductivity

Characterization and Investigations of Thin-Film Materials with X-ray Photoelectron Spectroscopy

Creator:: Diulus, J. Trey
Abstract:: Surface characterization of materials is widely utilized over a range of disciplines and essential to the development of new materials, technology, or processes. Metal oxide nanoclusters have shown promise as potential new generation photoresist materials for extreme ultraviolet (EUV) nanolithography. Organotin clusters have been proposed as potential candidates for resist...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Chemical Engineering presented on July 18, 2019 Title

Environmental Transformations of Nanoparticles in Natural Water Systems using a Hydrophobic and Hydrophilic Dye Assay

Creator:: Turnquist, Macklin C.
Abstract:: Nanoparticles (NPs) are generally defined as particles <100 nanometers (nm) in size in one dimension. Despite increasing industrial usage of TiO2 NPs in sunscreens, cosmetics, and water remediation little is known of their environmental behavior. The primary goal of this research was to develop a rapid method for determining the...
Resource Type:: Honors College Thesis
Full Text:: Science in Chemical Engineering (Honors Scholar) Presented May 18, 2018 Commencement

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Creator:: Chiriboga Novillo, Omar Guillermo
Abstract:: Marine diatoms are unicellular photosynthetic organisms that produce unique nanomaterials, energy dense lipid-molecules, and specialty carbohydrate molecules that can be all extracted from a single microorganism. The centric marine diatom Cyclotella sp. was used as a model organism for cultivation in a biorefinery system, where multiple co-products can be harvested...
Resource Type:: Dissertation
Full Text:: Chiriboga Novillo for the degree of Doctor of Philosophy in Chemical Engineering presented on May 18, 2018

Nisin adsorption to PEO-PPO-PEO tri-block copolymer layers and its resistance to elution by fibrinogen

Creator:: Ryder, Matthew P.
Abstract:: While hydrophobic surfaces coated with the poly[ethylene oxide]-poly[propylene oxide]-poly[ethylene oxide] (PEO-PPO-PEO) surfactant Pluronic® F108 are highly resistant to plasma protein adsorption, the antimicrobial peptide nisin has been observed to adsorb in multilayer quantities at such surfaces, and the PEO chains themselves suggested to inhibit nisin exchange by blood proteins. But...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Chemical Engineering presented on May 18, 2009. Title: Nisin Adsorption

Improving the sensitivity in a paper-based Test for the home monitoring of phenylalanine levels in phenylketonuria patients

Creator:: Wong, Liam
Abstract:: Monitoring phenylalanine (Phe) levels in the blood of individuals with phenylketonuria (PKU) is a critical component of therapy. Existing tests for PKU require high-resource laboratories, which are not available to many populations and cannot provide the real-time feedback required for effective therapy monitoring. It would be ideal to develop an...
Resource Type:: Honors College Thesis
Full Text:: ............................................... 18 10. Microscopic view of plasma separation membrane

Industrially-situated project-based learning : a study of feedback and diffusion

Creator:: Gilbuena, Debra M.
Abstract:: The Virtual Chemical Vapor Deposition (CVD) Process Development Project provides the context for the two areas of the research presented in this dissertation. The first area, generally referred to as feedback in this dissertation, focuses on student learning and the interactions of students and instructors that take place in the...
Resource Type:: Dissertation
Full Text:: . Gilbuena for the degree of Doctor of Philosophy in Chemical Engineering presented on March 18, 2013

ScholarsArchive@OSU

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

Fundamental Investigations of Electrocatalysis: Mechanistic Implications of Catalyst Electronic Structure

Predicting the Effect of Local Conditions on Metal-oxides: Pt/γ-Al₂O₃ Interface and Degradation of α-Cr₂O₃ Passive Film

Study of Garnet Type Electrolyte Li₇La₃Zr₂O₁₂ Structure and Electrochemical Performance

Characterization and Investigations of Thin-Film Materials with X-ray Photoelectron Spectroscopy

Environmental Transformations of Nanoparticles in Natural Water Systems using a Hydrophobic and Hydrophilic Dye Assay

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Nisin adsorption to PEO-PPO-PEO tri-block copolymer layers and its resistance to elution by fibrinogen

Improving the sensitivity in a paper-based Test for the home monitoring of phenylalanine levels in phenylketonuria patients

Industrially-situated project-based learning : a study of feedback and diffusion

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