Synthesis and properties of a platinum catalyst supported on plasma chemical silicon carbide

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• 作者：N. N. Vershinin ; V. A. Bakaev ; V. I. Berestenko ; O. N. Efimov…
• 关键词：carbon monoxide oxidation catalyst ; nanoparticles ; silicon carbide ; platinum
• 刊名：High Energy Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：51
• 期：1
• 页码：46-50
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Physical Chemistry;
• 出版者：Pleiades Publishing
• ISSN：1608-3148
• 卷排序：51

文摘

A CO oxidation catalyst based on β–SiC and Pt nanoparticles has been synthesized and studied. The average size of Pt clusters on the surface of the plasma-chemical silicon carbide nanoparticles is close to 4 nm. It has been found that the rate of the CO oxidation reaction at low concentrations (100 mg/m3) in air at room temperature over the catalyst based on platinum and silicon carbide nanoparticles is 60–90 times that over a platinum black-based catalyst with a specific surface area of 30 m2/g. The Pt/SiC catalyst containing 12 wt % Pt has been found to provide the maximum CO oxidation rate.