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 7 of 7 for “"Hard-Templating"”.
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"Reactive hard templating" : from carbon nitrides to metal nitrides
… of the product material, either “soft” or “hard” templates can be applied. For sol-gel processes, usually “soft” templating techniques are employed, while “hard” templates are used for high temperature synthesis pathways. In classical templating approaches, the template has the unique role …
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Formation of Meso-Structured Multi-Scale Porous Titanium Dioxide by Combined Soft-Templating, Freeze-Casting and Hard-Templating Using Cellulose Nanocrystals
… with tunable meso-scale morphology. Three templating approaches were simultaneously utilized in achieving this; namely, soft-templating by template-free self-assembly of an aligned macroporous structure, freeze-casting for the preservation of particle dispersion found in suspension, and …
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Development of Stochastic and Anisotropic Multiscale Ceramics Using High Aspect Ratio Sacrificial Fillers
… anisotropic structures via a directional ice-templating technique and hard-templating using the sacrificial filler method. Cellulose nanocrystals (CNCs) aerogels have been created via a ceramic suspension of 100g/mL of CNC powder and deionized water. Samples were then frozen, in cylindrical …
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Nanostructured carbohydrate-derived carbonaceous materials
… hydrothermal carbonisation (HTC) and templating strategies is demonstrated as an efficient route to nanostructured carbonaceous materials. HTC is an aqueous-phase, low-temperature (e.g. 130 – 200 °C) carbonisation, which proceeds via dehydration / poly-condensation of carbon precursors …
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Functional nanostructured hydrothermal carbons for sustainable technologies : heteroatom doping and superheated vapor
… (CHS) were synthesized using a polystyrene hard templating approach and doped carbon aerogels (CA) were synthesized using either the albumin directed or borax-mediated hydrothermal carbonization of glucose. Electrochemical testing showed that S/N dual doped CHS and aerogels derived via the …
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Hierarchical Templates and Their Application to Multimodal Porous Materials Fabrication
… can be realized. This work utilizes a direct hard templating method to obtain hierarchical porous structures with a well-defined bimodal distribution of the pores based on hierarchical templates. The hierarchical templates were prepared by synthetically joining appropriately functionalized …
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Novel carbon materials with hierarchical porosity : templating strategies and advanced characterization
… using mesophase pitch as carbon precursor, two templating strategies were developed using the nanocasting approach. The synthesized (monolithic) materials combined for the first time the advantages of a hierarchical interconnected pore system in the macro- and mesorange with the advantages of …