Photocatalytic oxidation of the sulfur-containing compounds, trimethylene sulfide (C3H6S), propylene sulfide (C3H6S), thiophene (C4H4S), and methyl disulfide (C2H6S2), was carried out using an annular plug flow reactor with TiO2 in a supported form. Formation of products and byproducts was monitored in real time using a mass spectrometry online system. Mineralization of the sulfur-containing co...

A concise mechanism for the poisoning kinetics of hydrogen sulfide (H2S) on composite solid polymer electrolyte Pt (SPE-Pt) electrode is presented. The simplified version of the mechanism is validated experimentally by charge balances and theoretically by a model, which predicts the oxidation current as a function of the applied potential. H2S dissociatively adsorbs onto SPE-Pt electrode as lin...

The cryptomelane catalysts containing transition metal (M/K-OMS-2, M = Cu, Ni, Co, Cr and Fe) was synthesized characterized by XRD, TEM/EDX, XRF, XPS, Raman, H2-TPR corroborated potassium thermal desorption measurements. were tested for soot oxidation in tight loose contact modes various conditions: O2, O2 + NO, SO2, NO SO2. alterations the activity discussed terms of manganese average number, ...

Effects of SO2 oxidation on ambient aerosol growth in water and ethanol vapours T. Petäjä, V.-M. Kerminen, K. Hämeri, P. Vaattovaara, J. Joutsensaari, W. Junkermann, A. Laaksonen, and M. Kulmala Division of Atmospheric Sciences, Department of Physical Sciences, University of Helsinki, Finland Air Quality Research, Finnish Meteorological Institute, Finland Department of Applied Physics, Universi...

In order to evaluate the toxicity of sodium bisulfite (NaHSO3) used in peritoneal dialysis solutions it was necessary to measure bisulfite in simple solutions and serum. A microdiffusion technic is described for quantification of bisulfite. This involves evolution of SO2 gas from bisulfite by acidification, trapping it as H2S03, oxidation ofthe H2S03to H2S04 by hydrogen peroxide, and titration ...

Thiols (RSH) or thiolates (RS) are one of the most popular anchor groups used for attaching molecules to gold electrodes in molecular junction devices. Operation of these devices under oxidizing conditions may lead to oxidation of the thiolate anchor groups. Herein we investigate the plausibility of this process as a potential source of current fluctuation. Density functional theory calculation...