Abstract
It is demonstrated that a high-temperature electrochemical reactor on the basis of zirconium dioxide (0.9ZrO2 · 0.1Y2O3) with platinum electrodes may be promising as a device for preparing samples of organic gases for isotopic assay of carbon. Owing to a high catalytic activity of the surface of a porous platinum coating, it is possible to realize full oxidation of organic gases to stoichiometric oxides at 900–950°C and an oxygen flux equivalent to an electric current of 100 µA and higher. The reproducibility of the results of isotopic assay is better than that yielded by a standard oxidation reactor. Use of the solid-electrolyte reactor in a new device as a sensor makes it possible to simultaneously measure the concentration of organic gases passing through the reactor on the basis of the charge transported by oxygen ions through the wall of a ceramic tube. Simultaneously one can monitor purity of the carrier gas.
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Original Russian Text © V.S. Sevast’yanov, E.M. Galimov, N.E. Babulevich, A.A. Arzhannikov, 2007, published in Elektrokhimiya, 2007, Vol. 43, No. 4, pp. 472–478.
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Sevast’yanov, V.S., Galimov, E.M., Babulevich, N.E. et al. Zirconium dioxide-based solid electrolyte as a means of oxidation of organic compounds during isotopic assay of carbon. Russ J Electrochem 43, 448–453 (2007). https://doi.org/10.1134/S102319350704012X
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DOI: https://doi.org/10.1134/S102319350704012X