Издательство СО РАН

Издательство СО РАН

Адрес Издательства СО РАН: Россия, 630090, а/я 187
Новосибирск, Морской пр., 2

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Поиск по журналу

Химия в интересах устойчивого развития

2003 год, номер 1

Oxidation Catalyst for Gas Oxygen Sensors

G. D. MALCHIKOV1, N. I. TIMOFEEV2, V. I. BOGDANOV2, E. N. TUPIKOVA1 and N. E. GORYAINOVA1
1S. P. Korolev Samara State Aerospace University,
Moskovskoye shosse 34a, Samara 443086 (Russia)
2Yekaterinburg Non-Ferrous Metals Processing Plant,
Pr. Lenina 8, Yekaterinburg 620014 (Russia), E-mail: chem@ssau.ru
Страницы: 161-166

Аннотация

The metal (stainless steel) porous "metal-rubber" monolith-supported Pt, Pd, Pt–Rh and Pd–Rh catalysts are tested in the process of complete oxidation of hydrocarbons. At stoichiometric and higher oxygen content practically complete conversion of model hydrocarbon occurred at 380 °C on all catalysts. At these temperatures the catalysts work in outward diffusive area. At the oxidant to fuel ratio lower than stoichiometric the maximal conversion of hydrocarbon is reached at lower temperatures (250 °Ñ). In complete hydrocarbon oxidation steady work of platinum catalyst is possible, if the content of sulphur in hydrocarbon does not exceed 0.3 % mass. These catalysts may be used for preparing a gas sample in oxygen sensors.