Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"porous gold"”.
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Constrained sintering of gold circuit films on rigid substrates
The densification behavior of porous gold films made from commercial circuit paste used in microelectronic packaging applications was studied. Constrained gold circuit films of 60-65μm thick were formed by multiple screen printing of the gold paste on rigid alumina substrates, while freestanding …
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Sulfur-Based Yolk-Shell Nanoparticles for Lithium Sulfur Batteries
… in this dissertation focuses on the synthesis of gold-functionalized sulfur yolk-shell nanoparticles. Sulfur was chosen as a cathode material due to its high theoretical specific capacity (1675 mA h g−1). However, there are still many technical limitations for Li-S batteries, like the dissolution …
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Hierarchical Templates and Their Application to Multimodal Porous Materials Fabrication
… catalysis carriers. Well-defined hierarchically porous materials are promising candidates for a wide range of applications relating to biosensors, separations, drug delivery, surface-enhanced Raman scattering (SERS), etc. Research on synthetic methodologies is expanding. However, fabrication of …
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Systematic Study of Parameters Affecting Unconventional Magnetism in Gold Nanostructures
… and interpretations of the novel magnetism of gold, by isolating two variables for testing. They are molecular dipole moment of the thiol that forms a self-assembled monolayer (SAM) on gold nanoparticles and thin-films, and roughness of gold thin-films. The first variable is chosen because the …
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Electrochemical fabrication of AuCo nanostructures
… If Co is etched from CoAu nanowires, rough, porous gold nanostructures will be left behind, which could be used as novel catalysts. In this study, the electrodeposition of Au/CoAu multilayered nanowires and nanotubes in nanoporous templates was explored from a non-cyanide electrolyte. The …
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Design, development and characterization of nanostructured electrochemical sensors
… applications of a series of microfabricated gold electrodes based on several nanostructures in electrochemical biosensing technologies, embracing three major methodologies: direct electro-catalytic detection, enzymatic detection and dual-enzyme cascade detection. The study is described over …
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Materials with engineered mesoporosity for programmed mass transport
… transport of molecular and ionic species in mesoporous materials (materials with pore sizes between 2 and 50 nm). Initially, discussion will focus on the synthesis of mesoporous ZnS nanorattles and the size selected mass transport of small molecules through the mesopores. Discussion will then …
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Characterization of gold black and its application in un-cooled infrared detectors
Gold black porous coatings were thermally evaporated in the chamber backfilled with inert gas pressure and their optical properties were studied in near-far-IR wavelengths. The porosities of coatings were found to be extremely high around ~ 99%. Different approaches of effective medium theories …