Index Catalog // ScholarsArchive@OSU

A study of thermal effects involved in the performance of a wetted-wall column

Creator:: Brady, Michael Donavon
Resource Type:: Dissertation
Full Text:: the following: To Dr, C. E. Wicks for his professional assistance and en- couragement throughout the

Theoretical Study of Solvent Effects in Heterogeneous Catalysis using Density Functional Theory

Creator:: Chukwu, Kingsley C.
Abstract:: Heterogeneous catalytic reactions in solvents are important for chemical processes like direct methanol fuels, biomass conversion to biofuels and electrochemical reduction of CO2 to fuels. Numerous experimental studies have shown that co-adsorbates and solvents affect the rate and selectivity of heterogeneous catalytic reaction, therefore fundamental understanding of how co-adsorbates and...
Resource Type:: Dissertation
Full Text:: Kingsley C. Chukwu for the degree of Doctor of Philosophy in Chemical Engineering presented on August 20

Continuous Flow Microwave-Assisted Synthesis as a Potentially Scalable Nanomanufacturing Approach

Creator:: Albuquerque, Gustavo Henrique T. C. de
Abstract:: The development of nanomaterials and the potential enhancement of their chemical, mechanical, electrical, and optical properties have led to the investigation of methods for their synthesis at lower cost with enhanced performance for next generation devices. Along with the pursuit of new materials that exhibit properties of interest, industry requires...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Gustavo Henrique T. C. de Albuquerque for the degree of Doctor of

Design Principles of Transition Metal X-ide Catalysts for Electrochemical Oxygen Reduction and Evolution Reactions: In-Situ X-ray Spectroscopy Studies

Creator:: Wang, Maoyu
Abstract:: Hydrogen is the green fuel that can be produced from water through electrolysis and used via hydrogen fuel cells to generate electricity with zero carbon dioxide emission. The commercialization of electrolyzers and fuel cells is the critical step to achieving global carbon neutrality. However, it is severely hampered by the...
Resource Type:: Dissertation
Full Text:: (X = C, N, O, S, Se, etc.). Besides the electrochemical characterization of catalysts’ activity

Hydrogen production via a sulfur-sulfur thermochemical water-splitting cycle

Creator:: AuYeung, Nicholas J.
Abstract:: Thermochemical water splitting cycles have been conceptualized and researched for over half a century, yet to this day none are commercially viable. The heavily studied Sulfur-Iodine cycle has been stalled in the early development stage due to a difficult HI-H₂O separation step and material compatibility issues. In an effort to...
Resource Type:: Dissertation
Full Text:: . This highly endothermic step is shown to successfully occur at temperatures in excess of 800˚C in

Prediction of thermodynamic properties of aqueous electrolyte solutions

Creator:: Kim, Hee-taik
Abstract:: The research undertaken in this study deals with three topics related to the prediction of thermodynamic properties of electrolytes in aqueous solutions. In the first, Pitzer ion interaction parameters for 304 single electrolytes were evaluated from recently published osmotic coefficient data at 25°C by using multiple regression analysis to fit...
Resource Type:: Dissertation
Full Text:: single electrolytes were evaluated from recently published osmotic coefficient data at 25°C by using

Analyzing the Kinetics and Thermodynamics of Surface Reactions using Density Functional Theory

Creator:: Sprowl, Lynza H.
Abstract:: The interactions of chemical species with a solid surface play a role in many everyday applications such as heterogeneous catalysis, corrosion, and degradation reactions. Understanding the reaction kinetics and thermodynamics via rate constants and equilibrium constants, which require knowledge of the adsorbed species’ entropy, is essential for tuning these surface...
Resource Type:: Dissertation
Full Text:: reaction energies. One such reaction we consider is the dissociation of CO into atomic C and O, as a

Roles of gas and solid components in the direct nitridation of silicon

Creator:: Pavarajarn, Varong
Abstract:: The factors influencing the direct nitridation of silicon, including the effects of the native oxide layer covering the surface of silicon, the effects of hydrogen contained in the nitridation gas and the catalytic effects of metals added to the raw material silicon, were investigated, using a tubular flow reactor and...
Resource Type:: Dissertation
Full Text:: fluidized-bed reactor operated at temperatures ranging from 1150°C to 1390°C in a stream of nitrogen

Performances and kinetic studies of hydrotreating of bio-oils in microreactor

Creator:: Attanatho, Lalita
Abstract:: Hydrotreating reaction of vegetable oil is an alternative method for the production of renewable biodiesel fuel. This reaction involves conversion of triglycerides into normal alkanes, leads to a deoxygenated and stable product, which is fully compatible with petroleum derived diesel fuel. The hydrotreating process uses hydrogen to remove oxygen from...
Resource Type:: Dissertation
Full Text:: reactions were carried out in the temperature range of 275-325 °C, residence time in the range of 11-40 s

Kinetics of nano-sized Si₃N₄ powder synthesis via ammonolysis of SiO vapor

Creator:: Vongpayabal, Panut
Abstract:: An 89 mm-diameter vertical tubular-flow reactor was used to study the kinetics of nano-sized silicon nitride powder synthesis via the animonolysis of SiO vapor at temperatures ranging from 1300°C to 1400°C. The SiO generation rate was controlled by adjusting the mass of SiO particles initially charged in the SiO generator,...
Resource Type:: Dissertation
Full Text:: 1000°- 1600°C ELm and Kimura, 1996]. The reaction has negative values of Gibbs energy change, ranging

ScholarsArchive@OSU

A study of thermal effects involved in the performance of a wetted-wall column

Theoretical Study of Solvent Effects in Heterogeneous Catalysis using Density Functional Theory

Continuous Flow Microwave-Assisted Synthesis as a Potentially Scalable Nanomanufacturing Approach

Design Principles of Transition Metal X-ide Catalysts for Electrochemical Oxygen Reduction and Evolution Reactions: In-Situ X-ray Spectroscopy Studies

Hydrogen production via a sulfur-sulfur thermochemical water-splitting cycle

Prediction of thermodynamic properties of aqueous electrolyte solutions

Analyzing the Kinetics and Thermodynamics of Surface Reactions using Density Functional Theory

Roles of gas and solid components in the direct nitridation of silicon

Performances and kinetic studies of hydrotreating of bio-oils in microreactor

Kinetics of nano-sized Si₃N₄ powder synthesis via ammonolysis of SiO vapor

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