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This paper presents mass spectrometry measurements of the saturated adsorption of CO in the presence of coadsorbed H2O on gas phase gold cluster cations, Aun+, n=3–20, stored in a quadrupole ion trap. Initial mass spectra obtained at 150K for specific cluster ion sizes as a function of CO pressure and reaction time, indicate increased CO saturation levels correlated with the coadsorption of background...
A study of the adsorption kinetics of 1-octanethiol and 1,8-octanedithiol has been carried out on gold electrode by cyclic voltammetry with different concentrations. Analysis of the kinetic data show that the adsorption kinetics of 1-octanethiol and 1,8-octanedithiol can be satisfactorily described by Diffusion controlled Langmuir(DCL) model, irrespective of concentration. The rate constants of 1-octanethiol...
As shown by quartz-crystal microbalance measurements, in the potential range from 0.0 to 0.55 V (NHE) sulfide ions adsorbed on the gold electrode surface accelerate the electrode reaction of anodic dissolution of gold in acidic thiocarbamide solutions. The microbalance determination of kinetic parameters at a constant electrode surface coverage with sulfide ions includes a special procedure developed...
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