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A method for determining the carrier concentration of n-type gallium arsenide by an electrochemical technique is described. The minority carrier diffusion length is also obtained, and using subsidiary measurements the minority carrier lifetime can be estimated. The extension of this treatment to...
Interfacial capacitance measurements have been used to study the effects of mercury on diamond polished copper, tin and zinc surfaces in 10M KOH. In the case of copper, microgram quantities of mercury were sufficient to inhibit the adsorption of hydrogen and reduce the surface heterogeneity. In...
The thermal reaction products in the Ag2S-Ag1.70 Te-Ag4P2O7, Ag2S-Ag1.70 Te-Ag3PO4 and Ag2S-Ag1.70 Te-AgPO3 systems were found to exhibit both high ionic and electronic conductivity at room temperature. For example, the ionic conductivities of (Ag2S)0.69 (Ag1.70Te)0.285 (Ag4P2O7)0.025,...
Experiments in 6 N KOH at room temperature with air-zinc and air-cadmium cells show clearly that the anodes have an influence on the polarization of the porous air cathode. The electrolyte volume is also found to have an effect. At a constant load of 30 mA/cm2 the polarization curve for oxygen...
Accurate and fast measurements of electrolytic hydrogen-deuterium separation factors are required to study short-term time effects and the effects of other variables, for example overpotential, before the cathode has suffered irreversible changes such as hydrogen embrittlement. A system for fast...
Low faradaic yields of Pb were found when electrolysing melts containing PbSO4 in solvents of either LiCl-KCl eutectic or Li2SO4-K2SO4-Na4SO4 eutectic and employing low current densities.
The anode products formed when electrowinning lead from lead sulphate dissolved in LiCl-KCl eutectic have been determined when using a carbonaceous anode.
The potentiostatic pulse method was used to study the electrochemical evolution of hydrogen on polycrystalline iron electrodes in concentrated KOH solutions. It was found that in pure KOH solutions there appeared to be two reaction mechanisms for hydrogen evolution, one at high the other at low...
The ionic conduction in sintered oxides of the system Bi2O3-WO3 was investigated by measuring conductivities and ion transference numbers under various conditions. The ion transference number was measured by an oxygen concentration cell employing the specimen tablet as the electrolyte.
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