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Articles 1 - 5 of 5
Full-Text Articles in Engineering
Fabrication Of A Thin Silver Nanowire Composite Film And Investigation Of A Patterning Technique., Richard S. Korte 1991-
Fabrication Of A Thin Silver Nanowire Composite Film And Investigation Of A Patterning Technique., Richard S. Korte 1991-
Electronic Theses and Dissertations
Electrically conductive polymers encompass an exciting field of research for applications in dye-sensitized solar cells (DSSC’s). DSSC’s possess several advantages over other types of solar cells. They offer the potential for high quantum efficiency, solar conversion efficiency approaching that of traditional silicon panels, rapid charge transfer kinetics for photo-excited electrons, mechanical flexibility, and cost efficient manufacturing processes. However, key drawbacks to their large scale production and performance lifetime lie in their reliance on costly indium tin oxide (ITO), fluorinated tin oxide (FTO), and platinum for electrode materials, and the mechanical fragility inherent to a liquid electrolyte layer component. Much of …
Phase Transformation Studies Of Metal Oxides To Dichalcogenides In 1-D Structures., Dustin Ray Cummins 1987-
Phase Transformation Studies Of Metal Oxides To Dichalcogenides In 1-D Structures., Dustin Ray Cummins 1987-
Electronic Theses and Dissertations
Recently, the use of materials with nanoscale morphologies has expanded, particularly with applications in energy conversion, catalysis, and energy storage. One drawback to single crystalline nanomaterials, especially 1D nanowires, is the difficulty in synthesizing these compounds, as the material chemistry becomes more complicated. Metal oxide nanowires can be synthesized easily and can be produced in relatively large quantities. However, more complex materials, such as metal chalcogenides, cannot typically be synthesized using facile methods, and currently very few techniques involve scalable methods. Phase transformation of metal oxides nanowires to form metal sulfides and selenides by gas-solid reactions is one viable route …
Investigation Of Stabilization Mechanisms For Colloidal Suspension Using Nanoparticles., Qingwen He
Investigation Of Stabilization Mechanisms For Colloidal Suspension Using Nanoparticles., Qingwen He
Electronic Theses and Dissertations
Over the past decade, charged nanoparticles have been found to enhance the stability of colloidal suspensions. One promising explanation of this stabilization mechanism is “Nanoparticle Haloing”- the formation of a non-adsorbing nanoparticle layer surrounding neutral colloids that would induce an effective electrostatic repulsion between them. The objective of this work was to investigate the effect of additional charged nanoparticles on the interaction between neural colloids in nanoparticle-regulated complex fluids. Firstly, colloidal probe Atomic Force Microscopy (CP-AFM) is used to directly measure the interaction force in such system with nanoparticle volume fractions varying from 10-6 to 10-2. It is found that …
An Investigation Of Heat Transfer Enhancement In Nanofluids Containing Core And Shell Nanoparticles., Cory Adam Milligan
An Investigation Of Heat Transfer Enhancement In Nanofluids Containing Core And Shell Nanoparticles., Cory Adam Milligan
Electronic Theses and Dissertations
The purpose of this research is to determine the differences in heat transfer enhancement of poly alpha olefin oil after the addition of two types of carbon coated nanoparticles, specifically carbon coated cobalt and carbon coated copper nanoparticles. The carbon shell allows for the nanoparticles to be homogenously dispersed in the oil and remain stable throughout the experimental procedure. The nanofluids were prepared in concentrations of 0.5, 1.0, and 1.5 wt%. A constant surface heat flux testing rig is used to determine the heat transfer coefficients of the base fluids and the nanofluids. Inlet temperatures to the heat transfer section …
Enhancement Of Anaerobic Digestion Of Actual Industrial Wastewaters : Reactor Stability And Kinetic Modeling., Mahyar Ghorbanian
Enhancement Of Anaerobic Digestion Of Actual Industrial Wastewaters : Reactor Stability And Kinetic Modeling., Mahyar Ghorbanian
Electronic Theses and Dissertations
Industrial plants pay disposal costs for discharging their wastewater that can contain pollutants, toxic organics and inorganics, to the sewer based on the Biological Oxygen Demand (BOD) or Chemical Oxygen Demand (COD) of the streams. It has become increasingly expensive for industry to meet stringent regulatory standards. One solution to reduce this cost is to anaerobically degrade the COD content, which in turn generates useful methane gas that can be used to generate useful energy or heat. Anaerobic Digestion (AD) is one of the most suitable renewable resources of conversion of industrial wastewaters to bioenergy, but it is not widely …