Index Catalog // ScholarsArchive@OSU

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

Selective self-assembly of biogenic silica assisted by layer-by-layer deposition and inkjet printing

Creator:: Wang, Wei
Abstract:: Nature is an inspirational source of silica structures that possess unique optical properties. A few classes of organisms fabricate metal oxides with nanoscale features by a bottom-up self assembly process. In particular, diatoms are a prolific class of single-celled algae that possess silica shells or “frustules” with intricate submicron scale...
Resource Type:: Masters Thesis
Full Text:: labmates Yu-Wei Su, Shuhong Liu, Hyung Dae Jin, and Seungyeol Han for their academic assistance and all

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Creator:: Jeffryes, Clayton S.
Abstract:: There is significant interest in titanium oxide and germanium-silicon oxide nanocomposites for optoelectronic, photocatalytic, and solar cell applications. The ability of the marine diatom Pinnularia sp. to uptake soluble metal oxides from cell culture medium, and incorporate them into the micro- and nano-structure of their amorphous silica cell walls, called...
Resource Type:: Dissertation
Full Text:: electroluminescent device. Wei Wang, with funding and support from his advisor, Dr. Chih-hung Chang, conducted

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Creator:: Schaerer, Morgan A.
Abstract:: Nitrosomonas europaea carries out the first step in the biological nitrogen removal process in wastewater treatment by oxidizing ammonia to nitrite. It has been shown to be sensitive to a wide range of contaminants. The antibiotic oxytetracycline and the heavy metals chromium and silver have been found in wastewater influent....
Resource Type:: Masters Thesis
Full Text:: ; Stein, Arp, & Hyman, 1997; Chui, Chung, & Jahng, 2005; Beyer, Gilch, Meyer, & Schmidt, 2009; Wei

Fabrication and characterization of nanostructured surfaces for enhanced heat transfer

Creator:: Choi, Changho
Abstract:: This objective of this study is to investigate the capability of nanostructured surfaces on dissipating heat flux by performing pool boiling and convective flow boiling. The generation of ultra-high heat flux from high performance electric devices has motivated a number of investigations related to advanced heat transfer especially in two-phase...
Resource Type:: Masters Thesis
Full Text:: , I would like to thank Debbi, Seungyeol, Wei, Jin, and Wayne for their help and assistance in all

Functional polymers and proteins at interfaces

Creator:: Schilke, Karl F.
Abstract:: Functional polymers and proteins at interfaces and surfaces are of fundamental importance for biomaterials, biocatalysis and microreactor applications. Candida antarctica lipase B immobilized on poly-DL-tryptophan tethers showed 30x higher specific activity in aqueous and non-aqueous media than the same enzyme adsorbed or covalently bound directly to the surface. An excess...
Resource Type:: Dissertation

Continuous and rapid synthesis of nanoclusters and nanocrystals using scalable microstructured reactors

Creator:: Jin, Hyung Dae
Abstract:: Recent advances in nanocrystalline materials production are expected to impact the development of next generation low-cost and/or high efficiency solar cells. For example, semiconductor nanocrystal inks are used to lower the fabrication cost of the absorber layers of the solar cells. In addition, some quantum confined nanocrystals display electron-hole pair...
Resource Type:: Dissertation
Full Text:: all my lab friends, Wayne, Seung-Yeol, Wei, Kathy, Toey, Yong, Dick, Paul, Changho, Vincent, Pan

Investigation of solution-based processes for functional metal oxides : printing, nanostructures, and applications

Creator:: Han, Seung-Yeol
Abstract:: The various solution-based processes, spin coating, inkjet printing, microreactor assisted nanoparticle deposition (MANDTM) and spin-successive ionic layer absorption and reaction (Spin-SILAR) were used to demonstrate thin film electronics and anti-reflective coatings. Several aspects of thin film transistors (TFTs) were tested including a range of temperatures, annealing atmosphere, and deposition methods....
Resource Type:: Dissertation
Full Text:: -Hyoung Lee, Shu-hong Liu, Prakashi Mugdur, Hyungdae Jin, Debra Gilbuena (Debbi), Yu Wei Su (Wayne), Wei

Transcriptional and physiological response of Nitrosomonas europaea to inhibition by chlorinated aromatics and heavy metals

Creator:: Sandborgh, Sean C.
Abstract:: This research investigates the physiological and transcriptional responses of Nitrosomonas europaea when exposed to chlorinated aromatic compounds and heavy metals under varying environmental conditions. It was found that transcriptional responses of identified sentinel genes correlate well with nitrification inhibition. Sorption of metals to biomass was also investigated and found not...
Resource Type:: Dissertation
Full Text:: et al. 2008; Wei et al. 2006). Physiology of N. europaea Ammonia oxidation in N. europaea

Synthesis of titanium dioxide nanorods using a continuous flow microreactor

Creator:: Yen, Wei-Liang
Abstract:: The primary goal of this thesis is to synthesize titanium dioxide nanorods using a continuous flow microreactor. Titania powder, one of the most important particulate materials is used for many purposes owing to its excellent optical properties of a high refractive index leading to high hiding power and whiteness of...
Resource Type:: Masters Thesis
Full Text:: guides me how to use Raman. I want to thank Su-Yu Wei for his design of the microreactor and useful

ScholarsArchive@OSU

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

Selective self-assembly of biogenic silica assisted by layer-by-layer deposition and inkjet printing

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Fabrication and characterization of nanostructured surfaces for enhanced heat transfer

Functional polymers and proteins at interfaces

Continuous and rapid synthesis of nanoclusters and nanocrystals using scalable microstructured reactors

Investigation of solution-based processes for functional metal oxides : printing, nanostructures, and applications

Transcriptional and physiological response of Nitrosomonas europaea to inhibition by chlorinated aromatics and heavy metals

Synthesis of titanium dioxide nanorods using a continuous flow microreactor

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