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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 20 of 39 for “"clathrate"”.
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Immunosensors developed on clathrate platform compounds
… of parvalbumin antibodies immobilised onto clathrate platform by incubation and were evaluated as immunosensors for fish species identification. The antibody/antigen binding event was evaluated using UV/Vis spectroscopy, electrochemical impedance spectroscopy (EIS) and atomic force …
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Measurements of clathrate hydrates properties via Raman spectroscopy
Includes bibliographical references (pages 90-99).
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Methane storage and transport via structure H clathrate hydrate
This thesis examines the prospect of structure H (sH) hydrate to be exploited for methane storage. The methane content in the hydrate, hydrate kinetics and conversion rates are areas of particular importance. Experiments and theory are employed at the macroscopic and molecular levels to study the …
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Exploration of High-Pressure Electride, Polymorphic Transformations, and Superconducting Clathrate Frameworks
… within a new dynamically stable boron–carbon clathrate on electron–phonon coupling interactions and the superconducting transition temperature (Tc). A notable characteristic of (H2)B3C3 is the dynamic behavior of the H2 molecules, which exhibit nearly free rotations within the B–C cages, …
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Theory of nucleation of water properties of some clathrate like cluster structures
… cluster configurations have been examined. Clathrate-like structures containing 16 to 57 water molecules are discussed. The hydrogen bonds were treated as simple harmonic oscillators for the purpose of calculating normal mode frequencies. The Helmholtz free energy of formation of the cluster …
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Probing hydrate stability and structural characterization of both natural and synthetic clathrate hydrates
Includes bibliographical references (pages 275-287).
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The formation of cyanoborate liquid clathrates with water or cresol as promoters
If host and guest components form a liquid clathrate only when a third component is present, the third component is a promoter of liquid clathrate formation. The importance of promoters was verified by promoting liquid clathrate formation in guest-host combinations which do not form liquid …
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Clathrate hydrates in frozen confections : formation by carbon dioxide flash freezing and behavior during distribution and consumption
… liquid water available to dissolve CO₂ . CO₂ clathrate hydrates can change this because CO₂ is trapped in crystalline water. The CO₂ flash-freezing process developed in this thesis forms CO₂ hydrates directly in a confection as it freezes. In this process, the confection mixture is dispersed …
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Studies on the rheology of ice and clathrate hydrate slurries formed in situ from water-in-oil emulsions
Includes bibliographical references (pages 151-158).
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Werner clathrates with potential chiral selectivity : preliminary investigations
The structures of the Werner clathrate Ni(NCS)₂(α-phenylethylamine)₄, as host complex made from enantiomerically pure amine ligand and from the racemic mixture, as well as its clathrate with sec-butylbenzene have been determined by x-ray diffraction.
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Structures and thermal analyses of Werner clathrates and coordination polymers
… packing arrangement of the host molecules in the clathrate, the guest molecules (G) may become trapped in cages, stacked in one-dimensional channels or sandwiched between layers of host molecules. Examples of all three clathrate types can be found in the different inclusion compounds presented …
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Experimental and theoretical investigation of novel phase change materials for thermal applications
… behaviour and characteristics of R134a clathrates with additives, as phase change materials (PCMs). PCMs’ charging characteristics are analysed and evaluated for cooling applications. The formation of refrigerant clathrates is investigated due to their potential use in active as well as …
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Structures of Werner clathrates
… to elucidate the structures of two new Werner clathrates. ... The chloroform molecule is disordered, lying on a two-fold axis. Stoicheiometric characterization of the clathrates was determined using various chemical techniques, including mass spectroscopy, proton nuclear magnetic resonance and …
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A study of secondary bonding effects in Werner clathrates
… was solved at -40°C. The dichloromethane clathrate is isomorphous with the chloroform clathrate of the same host, and both these clathrates have a similar packing to the carbon tetrachloride clathrate. There is significant secondary bonding between the sulphur (donor) of the isothiocyanate …
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A study of liquid clathrates
… the structure and packing in novel liquid clathrate systems. The stoicheiometry of the clathrates was investigated by various chemical methods including: thermogravimetric analysis, differential thermal analysis and proton nuclear magnetic resonance spectroscopy.
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Dynamics and rheology of soft phase-change materials
… industry, where formation of paraffin waxes and clathrate hydrates represent major issues for upstream production and flow assurance.
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