Index Catalog // ScholarsArchive@OSU

Model programming of a direct contact condenser in solvent free microwave extraction of peppermint oil

Creator:: Du, Yihao
Abstract:: Solvent free microwave extraction (SFME) has been demonstrated to be feasible in extraction of essential oils from botanical materials. The benefits are no need for any solvent aside from the water naturally in the botanical material and a significant reduction in environmental impact for large scale production processes. However, the...
Resource Type:: Masters Thesis
Full Text:: thank all of the faculty for giving me fantastic lectures during the course work: Chih-hung Chang

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
Full Text:: difference to me. Dr. Chih‐Hung Chang has also been a long‐time supporter of mine, allowing me a research

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

Transition Metal Oxides for Aqueous Electrochemical Energy Storage

Creator:: Jiang, Heng
Abstract:: In the 21st century, environmental deterioration is now an indisputable fact. Reliable and economically viable electricity systems based on renewable sources are urgently needed to replace the environmentally detrimental fossil fuels. The feasibility of incorporating renewable-but-intermittent solar and wind energy heavily depends on the development of cost-effective and safe technologies,...
Resource Type:: Dissertation
Full Text:: throughout my Ph.D. studies. I am also grateful to Dr. Chih-hung Chang for being my GCR member to help me

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:: , Prof. Líney Árnadóttir, Prof. Chih-hung Chang, Prof. Gregory S. Herman, and Prof. Liu Hong. Thank you

Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

Creator:: Chatterjee, Esha
Abstract:: Continued interest in the development of miniaturized and portable analytical platforms necessitates the exploration of sensitive methods for the detection of trace analytes. Nanomaterials, on account of their unique physical and chemical properties, are not only able to overcome many limitations of traditional detection reagents but also enable the exploration...
Resource Type:: Dissertation
Full Text:: . Michael Lerner, Dr. Chih-hung (Alex) Chang, Dr. Neal Sleszynski and Dr. Michael Qian, members of my

Development of a microchannel device for adsorption cooling application

Creator:: Asumpinpong, Kasidid
Abstract:: Single-layer and three-layer microchannel adsorption devices were fabricated by procedure that was newly developed. Aluminum was chosen for metal housing while the adsorption pair was silica gel and water. Each adsorption layer contained two layers of 250 μm-thick silica gel. Both silica gel layers opened to the same layer of...
Resource Type:: Masters Thesis

Photoluminescence properties investigation of germanium inserted biosilica generated by bioreactor culture of marine diatom Nitzschia frustulum

Creator:: Qin, Tian
Abstract:: The purpose of this research was to investigate the optoelectronic properties of the Ge doped biosilica, mainly focused on the photoluminescence (PL) properties of diatom frustules of N. frustulum that contain metabolically inserted germanium oxide produced by a two-stage photobioreactor cultivation process. In order to explain the observed PL intensity...
Resource Type:: Masters Thesis
Full Text:: both in my academic field and my life. I would like to thank Dr. Chih-hung Chang, the Co-PI of

Functional materials for advanced energy and electronic devices

Creator:: Flynn, Brendan T.
Abstract:: Advances in energy technologies and electronics have typically occurred through either heightened performance or cost reduction. This dissertation explores both routes through a series of fundamental material studies that may contribute to the enabling of next generation devices. Solution based syntheses and deposition of chemical products offer a low cost...
Resource Type:: Dissertation
Full Text:: -voltage testing, while Chih-hung Chang provided equipment use and data interpretation. The

Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

Creator:: Pommerenck, Justin
Abstract:: Atmospheric pressure plasma is non-thermal at millimeter to micrometer separations. It represents an alternative low exergy initiator of many chemical reactions. In many instances heat, light or sound are not efficient providers of the necessary energy to overcome chemical activation barriers. The focus of this research is applying dc nonthermal...
Resource Type:: Dissertation

ScholarsArchive@OSU

Model programming of a direct contact condenser in solvent free microwave extraction of peppermint oil

Characterization of CoGe Thin Films and Powders

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

Transition Metal Oxides for Aqueous Electrochemical Energy Storage

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

Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

Development of a microchannel device for adsorption cooling application

Photoluminescence properties investigation of germanium inserted biosilica generated by bioreactor culture of marine diatom Nitzschia frustulum

Functional materials for advanced energy and electronic devices

Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

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