Index Catalog // ScholarsArchive@OSU

Characterization of CoGe Thin Films and Powders

Creator:: Pfau, Andrew James
Abstract:: Cobalt germanides have been widely studied as semiconductor contact materials, but recent theoretical studies suggest that they may also be excellent catalysts for methane steam reforming with stabilities and activities comparable to noble metal catalysts. In order to study the catalytic activity of cobalt germanides, it is critical to first...
Resource Type:: Masters Thesis

The Design and Construction of a Cost-Effective Atomic Layer Deposition System for Thin Film Growth

Creator:: Hong, Youngjoon
Abstract:: This paper describes the construction and use of a cost-effective custom-built atomic layer deposition (ALD) system, as well as the investigation of aluminum oxide atomic layer deposition using trimethylaluminum and water. For this research, a cost-effective ALD system was constructed for less than $8,000 using existing parts that were given...
Resource Type:: Masters Thesis

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

The Effects of Temperature and Working Electrode Material on the Power Output of a Hydroxymethylfurfural Fuel Cell

Creator:: Breen, Joshua P.
Abstract:: The need for clean energy continues to rise as the earth’s non-renewable resources continue to be depleted to satisfy energy demands. One plausible renewable energy source exists in biomass-powered fuel cells.¹ While there are several ways to convert sugars to energy, one interesting approach is to convert the sugars to...
Resource Type:: Honors College Thesis
Full Text:: . Proc. 2009. 1225, pp. 498-506; doi:http://dx.doi.org/10.1063/1.3464897 29

Low-Cost Light Trapping Layer via Melting Gel and Hot Embossing Technique

Creator:: Xu, Han
Abstract:: Light trapping plays a phenomenal role in enhancing light confinement and light absorption within the solar cells, thus increasing the optical efficiency of the cell. Different strategies are employed for trapping light photons within the cell. Methods used include a substrate or single layer texturing, light trapping coating, plasmonic gratings,...
Resource Type:: Masters Thesis

Steady-State Diffusion in a Spatially Varying Porous Medium

Creator:: Ferrero, Peter T.
Abstract:: Heterogeneous porous material represents a persistent challenge in the field of engineering. Microscale properties such as the porosity and microchannel torturosity significantly control the macroscale transport characteristics of homogeneous porous medium. Additional complexity is introduced when these small-scale features vary in space. Examples of heterogeneous porous systems include artificial body...
Resource Type:: Masters Thesis

Growth, Characterizations, and Applications of Patterned Nanostructured Thin Film

Creator:: Gao, Zhongwei
Abstract:: A unique microreactor-assisted nanomaterial synthesis and printing process was studied for the fabrication of patterned metal oxide nanostructured thin films. The process uses a continuous flow microreactor to control and generate a reactive chemical flux that was transported to a patterned microfluidic channel. The microreactor-assisted nanomaterial synthesis process can generate...
Resource Type:: Dissertation

Process Intensification toward Reduced Exergy Destruction in Methane Upgrading

Creator:: Freiberg, Lucas J.
Abstract:: Exergy relates to thermodynamic value or usefulness in the universe. In this dissertation, three methods in the realm of "process intensification" are explored to reduce exergy destruction by equipment and processes that are used to convert and upgrade methane. Thermodynamic efficiency of a virtual heat exchanger is improved with a...
Resource Type:: Dissertation

Cu-Ga-S/ZnS Quantum Dots with Silica Melting Gel as a Luminescent Downshifting Coating for Enhancing Solar Photovoltaic Power Generation

Creator:: Chen, Si-Hao
Abstract:: Solar cells, also known as photovoltaic devices, are a class of renewable energy systems that can convert photons into electrons without the carbon dioxide emission. Short-wavelength, high-energy photons in the ultraviolet (UV) range can't be efficiently utilized by most solar cells because of the spectral mismatch. Luminescent downshifting is a...
Resource Type:: Masters Thesis

Understanding And Improving The Activity Of Oxygen Evolution Reaction Catalysts In Alkaline And Chloride-Containing Electrolytes

Creator:: Adiga, Prajwal Prakash
Abstract:: Water electrolysis plays a pivotal role in achieving a green hydrogen economy by sourcing electricity from intermittent renewable sources. However, the efficiency of the electrolysis process is limited by the sluggish oxygen evolution reaction (OER) kinetics, whereas the kinetics of the hydrogen evolution reaction (HER) are more facile. This thesis...
Resource Type:: Dissertation

ScholarsArchive@OSU

Characterization of CoGe Thin Films and Powders

The Design and Construction of a Cost-Effective Atomic Layer Deposition System for Thin Film Growth

Fundamental Investigations of Electrocatalysis: Mechanistic Implications of Catalyst Electronic Structure

The Effects of Temperature and Working Electrode Material on the Power Output of a Hydroxymethylfurfural Fuel Cell

Low-Cost Light Trapping Layer via Melting Gel and Hot Embossing Technique

Steady-State Diffusion in a Spatially Varying Porous Medium

Growth, Characterizations, and Applications of Patterned Nanostructured Thin Film

Process Intensification toward Reduced Exergy Destruction in Methane Upgrading

Cu-Ga-S/ZnS Quantum Dots with Silica Melting Gel as a Luminescent Downshifting Coating for Enhancing Solar Photovoltaic Power Generation

Understanding And Improving The Activity Of Oxygen Evolution Reaction Catalysts In Alkaline And Chloride-Containing Electrolytes

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