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Some applications of the dropping mercury electrodeDirksen, Alvin Joseph, January 1941 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1941. / Typescript. Includes abstract and vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 78-80).
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A STUDY OF THE ELECTRODEPOSITION OF METALS FROM AQUEOUS SOLUTIONS USING MERCURY CATHODESNelson, Roger Raymond, 1921- January 1963 (has links)
No description available.
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Investigations of a spark gap with mercury-jet electrodesNgo, Frank Quoc-Hai January 1970 (has links)
A spark gap with mercury jets as electrodes has been developed. Investigations show that the gap can be triggered reliably by photons from a trigger spark with a jitter in the formative time lags less than 0.2 µsec. To overcome uncertainties in the breakdown conditions produced by surface waves on the jet, it has been found necessary to trigger the spark no later than 0.5 sec. after starting the jets„ By suitably designing the geometry of the jets undesirable surface instabilities excited by electric fields have been eliminated.
Since the spark gap is isolated electrically from the triggering source very little noise is produced in neighbouring measuring circuits when the main spark is fired.
The continual regeneration of the electrode surfaces also eliminates the erratic features observed in normal spark gaps which are fitted with solid metal electrodes. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
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Electroanalytical studies of mercuric sulfide deposits on a mercury electrodeHaberman, John Phillip, January 1967 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1967. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Surface interactions of mercury on gold foil electrodes in electrodeposition and stripping and; an investigation of free thiolate ions from metal-thiolate chalcogenides /Watson, Charles Martin, January 2003 (has links) (PDF)
Thesis (Ph. D.) in Chemistry--University of Maine, 2003. / Includes vita. Includes bibliographical references (leaves 181-196).
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Sonovoltammetric detection of cadmium (II) at mercury thin film electrodesClark, Stacey L. January 2000 (has links)
Thesis (M.S.)--West Virginia University, 2000. / Title from document title page. Document formatted into pages; contains vii, 57 p. : ill. Includes abstract. Includes bibliographical references (p. 55-57).
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Surface Interactions of Mercury on Gold Foil Electrodes in Electrodeposition and Stripping and ; An Investigation of Free Thiolate Ions from Metal-Thiolate ChalcogenidesWatson, Charles Martin January 2003 (has links) (PDF)
No description available.
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Electrode processesAixill, W. Joanne January 1998 (has links)
The work presented in this thesis first characterises a high speed channel flow cell and then applies the system to the electro-reduction of nitromethane in aqueous solution. Potential step transient measurements are carried out with the current-time transients simulated using a model based on the absence of axial diffusion. The excellent agreement between theory and experiment confirms the proposed mass transport model and further demonstrates that the combination of current-time transients recorded using the high speed channel flow cell and numerical simulations provide a powerful tool to access homogeneous rate constants of the order 1 x 10<sup>6</sup>s̄¹. The high speed channel flow cell is then used in combination with a range of complementary electrochemical techniques, numerical modelling, in-situ ESR, single crystal experiments and kinetic isotope measurements to infer a mechanistic scheme for the complex electro-reduction pathway of nitromethane in aqueous solution. Platinum, gold, mercury/copper and mercury/gold electrodes are investigated enabling the most conclusive description of the reduction mechanism to date. The reaction pathway is shown to follow an ECEEE type process with the chemical step proceeding at the electrode surface. The heterogeneous rate constant, k<sub>het</sub>, describing the chemical step is calculated for each electrode surface. For platinum in the pH range 7.0 - 9.0 this value is 0.3 ± 0.06 cm s̄¹. For mercury/copper it is 0.18 cm s̄¹, for gold/mercury it is 0.06 cm s̄¹ and for Au it is 0.095 cm s̄¹. Consideration of these values shows a surprising independence of the heterogeneous rate constant on the chemical identity of the surface with all of the values being similar to within less than an order of magnitude. The reason for the apparent paradox of the observed surface indifference of the chemical reaction step is explained by a homogeneous H transfer from the carbon to the oxygen of the nitromethane radical anion, formed form the initial electron transfer step, occurring in the layer of solution immediately adjacent to the electrode solution as shown in the scheme below. The resulting species, <sup>•</sup>CH2 N(OH))ˉ then undergoes a rapid irreversible adsorption to the electrode surface and subsequent transformation to the final product the hydroxylamine, CH<sub>3</sub>NHOH. It is proposed that if the energy barrier to the adsorption of <sup>•</sup>CH2 N(OH))ˉ is less than that required for the H atom transfer then the reaction rate will be insensitive to the adsorption step and hence the chemical identity of the electrode. This introduces the concept of a whole new electrochemical process: the surface indifferent electrocatalytic reaction.
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