The Investigation of Propane Oxidation Using Electrochemical Mass Spectrometry.
Semiannual rept. no. 6, Jan-Jun 74,
STATE UNIV OF NEW YORK BUFFALO DEPT OF CHEMISTRY
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Elucidation of the mechanism of propane electrooxidation on platinum is complicated by the presence of several partially oxidized carbonaceous adsorbates. In this work techniques of Electrochemical Mass Spectrometry EMS have been developed and applied to simplify analytical characterization of species present at the propane anode. EMS is based on interfacing a non-wetting porous electrode to the inlet system of a mass spectrometer. The preparation of a suitable porous electrode is described. Transport across the gas-liquid interface is characterized using a rotating porous disk. A diffusion model is developed for the porous electrode. Steady state and nonsteady state collection phenomena are investigated. A novel technique for the determination of diffusion coefficients is presented. Labelled carbon studies were carried out using propane-2-13C. Observations on the open circuit behavior of the propane anode are included.
- Atomic and Molecular Physics and Spectroscopy