Browsing Chemistry Faculty Research, Publications and Presentations by Issue Date
Now showing items 41-60 of 234
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Automated, low-temperature dielectric relaxation apparatus for measurement of air-sensitive, corrosive, hygroscopic, powdered samples
An automated apparatus for dielectric determinations on solid samples was designed to allow cryogenic measurements on air-sensitive, corrosive, hygroscopic, powdered samples, without determination of sample thickness, ... -
Implications of finite-size and surface effects on nanosize intercalation materials
A Monte Carlo simulation of a two-dimensional lattice gas with free boundaries is used to study the effects of surface and size on the chemical potential-composition curves of intercalation compounds. In particular we are ... -
Influence of sample oxidation on the nature of optical luminescence from porous silicon
No abstract available. -
Structural principles and amorphouslike thermal conductivity of Na-doped Si clathrates
The postulated low thermal conductivity and the possibility of altering the electronic conductivity of metal-doped clathrates with semiconducting host elements have stimulated great interest in exploring these compounds ... -
Thermal and lattice dynamical properties of Na8Si46 clathrate
The experimental heat capacity of Na8Si46 has been determined from 35-300 K, and its lattice parameters have been measured over the range 100-330 K. The experimental heat capacity and the thermal-expansion coefficient ... -
Transport properties of Na8Si46
We report on transport properties of polycrystalline Na8Si46 in the temperature range 10 to 300 K. The compound is a type I clathrate with Na incorporated into polyhedra formed by framework Si atoms. Seebeck coefficient ... -
Amorphous carbon nanowires investigated by near-edge-x-ray-absorption-fine-structures
No abstract available. -
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Dynamics of anions and cations in cesium hydrogensulfide (CsHS, CsDS): Neutron and x-ray diffraction, calorimetry and proton NMR investigations
Protonated and deuterated samples of the hydrogensulfide of cesium were studied by high-resolution neutron powder diffraction, calorimetry and proton NMR investigations in a wide temperature range. Primarily due to ... -
Electrochemical route for the fabrication of alkanethiolate-capped gold nanoparticles
No abstract available. -
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X-ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects
We report a study of the structure and electronic properties of a series of thiol-capped Au nanoparticles (NP) of nominal sizes of 1.6, 2.4, and 4.0 nm. Transmission electron microscopy, x-ray powder diffraction, x-ray ...